update docs

2020-01-02 23:41:13 +08:00
189 changed files with 3655 additions and 5353 deletions
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,8 @@ jobs:

      - name: lint
        run: |
-          make lint
+          docker run --rm -v $(pwd):/app -w /app golangci/golangci-lint \
+          golangci-lint run -v

      - name: unit test
        env:
@@ -27,7 +28,7 @@ jobs:
          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
        run: |
-          # export KUBECONFIG="$(kind get kubeconfig-path)"
+          export KUBECONFIG="$(kind get kubeconfig-path)"
          make unit-test
          bash <(curl -s https://codecov.io/bash) -t ${CODECOV_TOKEN}

@@ -42,6 +43,11 @@ jobs:
          make docker-build
          make test
          # make docker-publish #TODO in release workflow
+      - name: test fx docker cloud
+        run: |
+          make start_docker_infra
+          make test_docker_infra
+          make stop_docker_infra

      - name: test fx cli
        env:
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -57,11 +57,11 @@ jobs:
        run: |
          docker push metrue/fx-python-base:latest

-      - name: build and publish fx perl image
-        if: always()
-        run: |
-          docker build -t metrue/fx-perl-base:latest -f ./assets/dockerfiles/base/perl/Dockerfile ./assets/dockerfiles/base/perl
-          docker push metrue/fx-perl-base:latest
+      # - name: build and publish fx rust image
+      #   if: always()
+      #   run: |
+      #     docker build -t metrue/fx-rust-base:latest -f ./assets/dockerfiles/base/rust/Dockerfile ./assets/dockerfiles/base/python
+      #     docker push metrue/fx-rust-base:latest

      - name: build and publish fx julia image
        if: always()
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -32,7 +32,7 @@ jobs:
          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
        run: |
-          # export KUBECONFIG="$(kind get kubeconfig-path)"
+          export KUBECONFIG="$(kind get kubeconfig-path)"
          make unit-test

      - name: build fx
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -1,14 +1,12 @@
 run:
-  deadline: 20m
-  timeout: 20m
+  deadline: 10m
+  timeout: 10m
  issues-exit-code: 1
  tests: true
  skip-dirs:
    - examples
    - api/images
    - test/functions
-    - assets/
-    - bundler/go/assets
 linters:
  enable:
    - goimports
--- a/7
+++ b/7
@@ -4,8 +4,7 @@ DOCKER_REMOTE_HOST_ADDR ?= "127.0.0.1"
 DOCKER_REMOTE_HOST_USER ?= $(whoami)

 lint:
-	docker pull golangci/golangci-lint
-	docker run --rm -v $(CURDIR):/app -w /app golangci/golangci-lint golangci-lint run -v
+	golangci-lint run

 generate:
 	packr
@@ -27,13 +26,13 @@ clean:
 	rm -rf ${DIST_DIR}

 unit-test:
-	./scripts/coverage.sh
+	CI=true ./scripts/coverage.sh

 cli-test-ci:
 	./scripts/test_cli.sh 'js'

 cli-test:
-	./scripts/test_cli.sh 'js rb py go java d pl'
+	./scripts/test_cli.sh 'js rb py go php java d rs pl'

 http-test:
 	./scripts/http_test.sh
--- a/README.md
+++ b/README.md
@@ -8,14 +8,16 @@ Poor man's function as a service.
 [![CodeCov](https://codecov.io/gh/metrue/fx/branch/master/graph/badge.svg)](https://codecov.io/gh/metrue/fx)
 [![Go Report Card](https://goreportcard.com/badge/github.com/metrue/fx?style=flat-square)](https://goreportcard.com/report/github.com/metrue/fx)
 [![Go Doc](https://img.shields.io/badge/godoc-reference-blue.svg?style=flat-square)](http://godoc.org/github.com/metrue/fx)
-![visitors](https://visitor-badge.glitch.me/badge?page_id=https://github.com/metrue/fx)
-![liscense](https://img.shields.io/github/license/metrue/fx.svg)
+![](https://img.shields.io/github/license/metrue/fx.svg)
 [![Release](https://img.shields.io/github/release/metrue/fx.svg?style=flat-square)](https://github.com/metrue/fx/releases/latest)

 ## Table of Contents
 - [Introduction](#introduction)
 - [Installation](#installation)
 - [Usage](#usage)
+- [Manage Infrastructure](#manage-infrastructure)
+- [Contribute](#contribute)
+

 ## Introduction

@@ -69,6 +71,8 @@ You can go the release page to [download](https://github.com/metrue/fx/releases)

 ## Usage

+Make sure [Docker](https://docs.docker.com/engine/installation/) installed and running on your server first. then type `fx -h` on your terminal to check out basic help.
+
 ```
 NAME:
   fx - makes function as a service
@@ -76,11 +80,17 @@ NAME:
 USAGE:
   fx [global options] command [command options] [arguments...]

+VERSION:
+   0.8.7
+
 COMMANDS:
+   infra     manage infrastructure
   up        deploy a function
   down      destroy a service
   list, ls  list deployed services
+   call      run a function instantly
   image     manage image of service
+   doctor    health check for fx
   help, h   Shows a list of commands or help for one command

 GLOBAL OPTIONS:
@@ -88,40 +98,22 @@ GLOBAL OPTIONS:
   --version, -v  print the version
 ```

-### Deploy function
-
-#### Local Docker environment
-
-By default, function will be deployed on localhost， make sure [Docker](https://docs.docker.com/engine/installation/) installed and running on your server first. then type `fx -h` on your terminal to check out basic help.
+### Deploy your function to Docker

 ```
-$ fx up --name hello ./examples/functions/JavaScript/func.js
+$ fx up --name hello-fx ./examples/functions/JavaScript/func.js

 +------------------------------------------------------------------+-----------+---------------+
 |                                ID                                |   NAME    |   ENDPOINT    |
 +------------------------------------------------------------------+-----------+---------------+
-| 5b24d36608ee392c937a61a530805f74551ddec304aea3aca2ffa0fabcf98cf3 | /hello    | 0.0.0.0:58328 |
+| 5b24d36608ee392c937a61a530805f74551ddec304aea3aca2ffa0fabcf98cf3 | /hello-fx | 0.0.0.0:58328 |
 +------------------------------------------------------------------+-----------+---------------+
 ```

-#### Remote host
-
-Use `--host` to specify the target host for your function, or you can just set it to `FX_HOST` environment variable.
-
-```shell
-$ fx up --host roo@<your host> --name hello ./examples/functions/JavaScript/func.js
-
-+------------------------------------------------------------------+-----------+---------------+
-|                                ID                                |   NAME    |   ENDPOINT    |
-+------------------------------------------------------------------+-----------+---------------+
-| 5b24d36608ee392c937a61a530805f74551ddec304aea3aca2ffa0fabcf98cf3 | /hello    | 0.0.0.0:58345 |
-+------------------------------------------------------------------+-----------+---------------+
-```
-
-#### Kubernetes
+### Deploy your function to Kubernetes

 ```
-$ FX_KUBECONF=~/.kube/config fx up examples/functions/JavaScript/func.js --name hello
+$ KUBECONFIG=~/.kube/config ./build/fx up examples/functions/JavaScript/func.js --name hello-fx

 +-------------------------------+------+----------------+
 | ID                     | NAME        |    ENDPOINT    |
@@ -130,7 +122,7 @@ $ FX_KUBECONF=~/.kube/config fx up examples/functions/JavaScript/func.js --name
 +------------------------+-------------+----------------+
 ```

-### Test service
+### Test your service

 then you can test your service:

@@ -157,6 +149,31 @@ hello world

 ```

+## Manage Infrastructure
+
+**fx** is originally designed to turn a function into a runnable Docker container in a easiest way, on a host with Docker running, you can just deploy your function with `fx up` command,  and now **fx** supports deploy function to be a service onto Kubernetes cluster infrasture, and we encourage you to do that other than on bare Docker environment, there are lots of advantage to run your function on Kubernetes like self-healing, load balancing, easy horizontal scaling, etc. It's pretty simple to deploy your function onto Kubernetes with **fx**, you just set KUBECONFIG in your enviroment.
+
+By default. **fx** use localhost as target infrastructure to run your service, and you can also setup your remote virtual machines as **fx**'s infrastructure and deploy your functions onto it.
+
+### `fx infra create`
+
+You can create types (docker and k8s) of infrastructures for **fx** to deploy functions
+
+```shell
+$ fx infra create --name infra_us --type docker --host <user>@<ip>                                            ## create docker type infrasture on <ip>
+$ fx infra create --name infra_bj --type k8s --master <user>@<ip> --agents '<user1>@<ip1>,<user2>@<ip2>'      ## create k8s type infrasture use <ip> as master node, and <ip1> and <ip2> as agents nodes
+```
+
+### `fx infra use`
+
+To use a infrastructure, you can use `fx infra use` command to activate it.
+
+```shell
+fx infra use <infrastructure name>
+```
+
+and you can list your infrastructure with `fx infra list`
+
 ## Use Public Cloud Kubernetes Service as infrastructure to run your functions

 * Azure Kubernetes Service (AKS)
@@ -181,7 +198,7 @@ aks-nodepool1-31718369-0   Ready    agent   6m44s   v1.12.8
 Since AKS's config will be merged into `~/.kube/config` and set to be current context after you run `az aks get-credentials` command, so you can just set KUBECONFIG to default config also,

 ```shell
-$ export FX_KUBECONF=~/.kube/config  # then fx will take the config to deloy function
+$ export KUBECONFIG=~/.kube/config  # then fx will take the config to deloy function
 ```

 But we would suggest you run `kubectl config current-context` to check if the current context is what you want.
@@ -207,7 +224,7 @@ $ kubectl config current-context
 Then you can deploy your function onto GKE cluster with,

 ```shell
-$ FX_KUBECONF=~/.kube/config fx up examples/functions/JavaScript/func.js --name hellojs
+$ KUBECONFIG=~/.kube/config fx up examples/functions/JavaScript/func.js --name hellojs
 ```

 * Setup your own Kubernetes cluster
@@ -216,6 +233,31 @@ $ FX_KUBECONF=~/.kube/config fx up examples/functions/JavaScript/func.js --name
 fx infra create --type k3s --name fx-cluster-1 --master root@123.11.2.3 --agents 'root@1.1.1.1,root@2.2.2.2'
 ```

+## Contribute
+
+fx uses [Project](https://github.com/metrue/fx/projects/4) to manage the development.
+
+#### Prerequisites
+
+Docker: make sure [Docker](https://docs.docker.com/engine/installation/) installed and running on your server.
+
+
+<a name="buildtest"></a>
+#### Build & Test
+
+```
+$ git clone https://github.com/metrue/fx
+$ cd fx
+$ make build
+```
+
+Then you can build and test:
+
+```
+$ make build
+$ ./build/fx -h
+```
+

 ## Contributors

--- a/assets/dockerfiles/base/node/Dockerfile
+++ b/assets/dockerfiles/base/node/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:alpine
+FROM node:latest

 COPY . .
 RUN npm install
--- a/assets/dockerfiles/base/node/package-lock.json
+++ b/assets/dockerfiles/base/node/package-lock.json
@@ -1,599 +1,13 @@
 {
-  "name": "fx-node-base",
+  "name": "aok",
  "version": "1.0.0",
  "lockfileVersion": 1,
  "requires": true,
  "dependencies": {
-    "@koa/cors": {
-      "version": "2.2.3",
-      "resolved": "https://registry.npmjs.org/@koa/cors/-/cors-2.2.3.tgz",
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-      "requires": {
-        "vary": "^1.1.2"
-      }
-    },
-    "ajv": {
-      "version": "6.12.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.2.tgz",
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-      "requires": {
-        "fast-deep-equal": "^3.1.1",
-        "fast-json-stable-stringify": "^2.0.0",
-        "json-schema-traverse": "^0.4.1",
-        "uri-js": "^4.2.2"
-      }
-    },
-    "asn1": {
-      "version": "0.2.4",
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 }
--- a/assets/dockerfiles/base/node/package.json
+++ b/assets/dockerfiles/base/node/package.json
@@ -10,13 +10,10 @@
  "author": "",
  "license": "ISC",
  "dependencies": {
-    "@koa/cors": "^2.2.3",
-    "express-to-koa": "^2.0.0",
    "get-port": "^3.2.0",
    "is-generator-function": "^1.0.6",
    "koa": "^2.3.0",
    "koa-bodyparser": "^4.2.0",
-    "node-fetch": "^2.6.0",
-    "swagger-stats": "^0.95.17"
+    "node-fetch": "^2.6.0"
  }
 }
--- a/assets/dockerfiles/base/perl/cpanfile
+++ b/assets/dockerfiles/base/perl/cpanfile
@@ -1,3 +1,2 @@
 requires "EV";
-requires "JSON";
 requires "Mojolicious::Lite";
--- a/assets/dockerfiles/base/rust/Cargo.lock
+++ b/assets/dockerfiles/base/rust/Cargo.lock
@@ -1,65 +1,3 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-[[package]]
-name = "aead"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -71,8 +9,11 @@ dependencies = [

 [[package]]
 name = "base64"
-version = "0.12.1"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]

 [[package]]
 name = "bitflags"
@@ -84,38 +25,6 @@ name = "bitflags"
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-[[package]]
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@@ -130,6 +39,11 @@ dependencies = [
 "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "cc"
+version = "1.0.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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@@ -145,17 +59,13 @@ dependencies = [

 [[package]]
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+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
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- "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "sha2 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -166,15 +76,6 @@ dependencies = [
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 ]

-[[package]]
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- "subtle 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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@@ -204,26 +105,13 @@ dependencies = [
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-[[package]]
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 dependencies = [
 "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
 "redox_syscall 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -234,7 +122,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 "fsevent-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -242,7 +130,7 @@ name = "fsevent-sys"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -264,63 +152,6 @@ name = "futures"
 version = "0.1.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"

-[[package]]
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-
 [[package]]
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@@ -367,7 +198,7 @@ dependencies = [
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 "inotify-sys 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -378,7 +209,7 @@ name = "inotify-sys"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -386,10 +217,21 @@ name = "iovec"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
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+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -421,7 +263,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "libc"
-version = "0.2.71"
+version = "0.2.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
@@ -460,7 +302,7 @@ version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
 "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -482,7 +324,7 @@ dependencies = [
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 "lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
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 "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -518,7 +360,7 @@ version = "0.2.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -533,7 +375,7 @@ dependencies = [
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 "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
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 "walkdir 2.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -545,14 +387,9 @@ name = "num_cpus"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
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@@ -575,7 +412,7 @@ name = "parking_lot_core"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -607,25 +444,6 @@ name = "percent-encoding"
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-[[package]]
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 [[package]]
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@@ -649,32 +467,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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- "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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@@ -688,84 +485,78 @@ name = "rand_core"
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-[[package]]
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 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
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+ "libc 0.2.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "rocket_codegen 0.4.0-rc.2 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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-"checksum polyval 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7ec3341498978de3bfd12d1b22f1af1de22818f5473a11e8a6ef997989e3a212"
-"checksum ppv-lite86 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "237a5ed80e274dbc66f86bd59c1e25edc039660be53194b5fe0a482e0f2612ea"
 "checksum proc-macro2 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)" = "77619697826f31a02ae974457af0b29b723e5619e113e9397b8b82c6bd253f09"
 "checksum quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "53fa22a1994bd0f9372d7a816207d8a2677ad0325b073f5c5332760f0fb62b5c"
 "checksum rand 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e464cd887e869cddcae8792a4ee31d23c7edd516700695608f5b98c67ee0131c"
-"checksum rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
-"checksum rand_chacha 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
 "checksum rand_core 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1961a422c4d189dfb50ffa9320bf1f2a9bd54ecb92792fb9477f99a1045f3372"
 "checksum rand_core 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0905b6b7079ec73b314d4c748701f6931eb79fd97c668caa3f1899b22b32c6db"
-"checksum rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
-"checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
 "checksum redox_syscall 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)" = "679da7508e9a6390aeaf7fbd02a800fdc64b73fe2204dd2c8ae66d22d9d5ad5d"
-"checksum rocket 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6130967b369cfb8411b0b73e96fcba1229c32a9cc6f295d144f879bfced13c6e"
-"checksum rocket_codegen 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "cb852e6da168fb948a8f2b798ba2e2f0e4fc860eae0efa9cf2bf0f5466bb0425"
-"checksum rocket_contrib 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e3946ca815127041d8f64455561031d058c22ae1b135251502c5ea523cf9e14b"
-"checksum rocket_http 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "1aff5a5480175f2f553a876b251e9350c74196128806d176da3a51c82aab5428"
+"checksum ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2c4db68a2e35f3497146b7e4563df7d4773a2433230c5e4b448328e31740458a"
+"checksum rocket 0.4.0-rc.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eaa997ea8de9b14112aa38b2b6a0ecf3e651ff2c08d2fdf384fa765b5f9c2c98"
+"checksum rocket_codegen 0.4.0-rc.2 (registry+https://github.com/rust-lang/crates.io-index)" = "fc68f90452ac88c6c1e02a922a0a23ef0ade08f9af899056d0c919b25fa7768c"
+"checksum rocket_contrib 0.4.0-rc.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2cc6a37cb7a6256efe6648f2d0ab9978c49ab883909ea4fabefb81d7c685d841"
+"checksum rocket_http 0.4.0-rc.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c7d555ce896830602aedf4bce2eec8d64713d45a2492c5a3625c3faa5f719b0f"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 "checksum ryu 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "eb9e9b8cde282a9fe6a42dd4681319bfb63f121b8a8ee9439c6f4107e58a46f7"
 "checksum safemem 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8dca453248a96cb0749e36ccdfe2b0b4e54a61bfef89fb97ec621eb8e0a93dd9"
@@ -1221,14 +937,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)" = "15c141fc7027dd265a47c090bf864cf62b42c4d228bbcf4e51a0c9e2b0d3f7ef"
 "checksum serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)" = "225de307c6302bec3898c51ca302fc94a7a1697ef0845fcee6448f33c032249c"
 "checksum serde_json 1.0.33 (registry+https://github.com/rust-lang/crates.io-index)" = "c37ccd6be3ed1fdf419ee848f7c758eb31b054d7cd3ae3600e3bae0adf569811"
-"checksum sha2 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a256f46ea78a0c0d9ff00077504903ac881a1dafdc20da66545699e7776b3e69"
 "checksum slab 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5f9776d6b986f77b35c6cf846c11ad986ff128fe0b2b63a3628e3755e8d3102d"
 "checksum smallvec 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)" = "b73ea3738b47563803ef814925e69be00799a8c07420be8b996f8e98fb2336db"
-"checksum smallvec 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
 "checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
 "checksum state 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7345c971d1ef21ffdbd103a75990a15eb03604fc8b8852ca8cb418ee1a099028"
-"checksum subtle 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2d67a5a62ba6e01cb2192ff309324cb4875d0c451d55fe2319433abe7a05a8ee"
-"checksum subtle 2.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "502d53007c02d7605a05df1c1a73ee436952781653da5d0bf57ad608f66932c1"
 "checksum syn 0.15.22 (registry+https://github.com/rust-lang/crates.io-index)" = "ae8b29eb5210bc5cf63ed6149cbf9adfc82ac0be023d8735c176ee74a2db4da7"
 "checksum time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "d825be0eb33fda1a7e68012d51e9c7f451dc1a69391e7fdc197060bb8c56667b"
 "checksum tokio-executor 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "c117b6cf86bb730aab4834f10df96e4dd586eff2c3c27d3781348da49e255bde"
@@ -1237,19 +949,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum toml 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)" = "19782e145d5abefb03758958f06ea35f7b1d8421b534140e0238fd3d0bfd66e3"
 "checksum traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "efd1f82c56340fdf16f2a953d7bda4f8fdffba13d93b00844c25572110b26079"
 "checksum typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
-"checksum typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
 "checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
 "checksum unicode-normalization 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "6a0180bc61fc5a987082bfa111f4cc95c4caff7f9799f3e46df09163a937aa25"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
-"checksum universal-hash 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df0c900f2f9b4116803415878ff48b63da9edb268668e08cf9292d7503114a01"
 "checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
+"checksum untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "55cd1f4b4e96b46aeb8d4855db4a7a9bd96eeeb5c6a1ab54593328761642ce2f"
 "checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
 "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
-"checksum version_check 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 "checksum walkdir 2.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "9d9d7ed3431229a144296213105a390676cc49c9b6a72bd19f3176c98e129fa1"
-"checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 "checksum winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "92c1eb33641e276cfa214a0522acad57be5c56b10cb348b3c5117db75f3ac4b0"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
@@ -1259,4 +968,3 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
 "checksum yansi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d60c3b48c9cdec42fb06b3b84b5b087405e1fa1c644a1af3930e4dfafe93de48"
 "checksum yansi 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9fc79f4a1e39857fc00c3f662cbf2651c771f00e9c15fe2abc341806bd46bd71"
-"checksum zeroize 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3cbac2ed2ba24cc90f5e06485ac8c7c1e5449fe8911aef4d8877218af021a5b8"
--- a/assets/dockerfiles/base/rust/Cargo.toml
+++ b/assets/dockerfiles/base/rust/Cargo.toml
@@ -5,8 +5,8 @@ authors = ["FrontMage <xbgxwh@outlook.com>"]
 edition = "2018"

 [dependencies]
-rocket = "0.4.5"
-rocket_contrib = "0.4.5"
+rocket = "0.4.0-rc.2"
+rocket_contrib = "0.4.0-rc.2"
 serde_json = "1.0"
 serde_derive = "1.0.70"
 serde = "1.0.70"
--- a/assets/dockerfiles/base/rust/Dockerfile
+++ b/assets/dockerfiles/base/rust/Dockerfile
@@ -1,12 +1,7 @@
-FROM clux/muslrust:nightly AS builder
-WORKDIR /build
-COPY . .
-RUN ln -s /usr/bin/g++ /usr/bin/musl-g++ && cargo build --release
+FROM liuchong/rustup

-FROM scratch
 WORKDIR /usr/src/myapp
-COPY --from=builder /build/target/x86_64-unknown-linux-musl/release/rust /usr/src/myapp/
-COPY ./Rocket.toml /usr/src/myapp/
+COPY . .
+RUN cp ./config ~/.cargo/ && rustup default nightly && cargo build
 EXPOSE 3000
-ENV ROCKET_ENV=prod
-CMD ["/usr/src/myapp/rust"]
+CMD ["cargo", "run"]
--- a/assets/dockerfiles/base/rust/Rocket.toml
+++ b/assets/dockerfiles/base/rust/Rocket.toml
@@ -1,23 +1,5 @@
 [development]
-address = "localhost"
-port = 3000
-workers = 8
-keep_alive = 5
-log = "normal"
-limits = { forms = 32768 }
-
-[staging]
 address = "0.0.0.0"
 port = 3000
-workers = 8
-keep_alive = 5
 log = "normal"
-limits = { forms = 32768 }

-[production]
-address = "0.0.0.0"
-port = 3000
-workers = 8
-keep_alive = 5
-log = "critical"
-limits = { forms = 32768 }
--- a/assets/dockerfiles/base/rust/src/fns/mod.rs
+++ b/assets/dockerfiles/base/rust/src/fns/mod.rs
@@ -4,7 +4,7 @@ pub mod fns {
        pub result: i32,
    }

-    #[derive(Deserialize, FromForm)]
+    #[derive(Deserialize)]
    pub struct Request {
        pub a: i32,
        pub b: i32,
--- a/assets/dockerfiles/base/rust/src/main.rs
+++ b/assets/dockerfiles/base/rust/src/main.rs
@@ -10,19 +10,13 @@ extern crate serde_json;

 mod fns;

-use rocket::request::Form;
 use rocket_contrib::json::Json;

-#[get("/?<req..>")]
-fn get(req: Form<fns::fns::Request>) -> Json<fns::fns::Response> {
-    Json(fns::fns::func(req.0))
-}
-
 #[post("/", format = "application/json", data = "<req>")]
-fn post(req: Json<fns::fns::Request>) -> Json<fns::fns::Response> {
+fn index(req: Json<fns::fns::Request>) -> Json<fns::fns::Response> {
    Json(fns::fns::func(req.0))
 }

 fn main() {
-    rocket::ignite().mount("/", routes![get, post]).launch();
+    rocket::ignite().mount("/", routes![index]).launch();
 }
--- a/bundle/bundle.go
+++ b/bundle/bundle.go
@@ -1,44 +0,0 @@
-package bundle
-
-import (
-	"fmt"
-
-	"github.com/metrue/fx/bundler"
-	"github.com/metrue/fx/bundler/d"
-	golang "github.com/metrue/fx/bundler/go"
-	"github.com/metrue/fx/bundler/java"
-	"github.com/metrue/fx/bundler/julia"
-	"github.com/metrue/fx/bundler/node"
-	"github.com/metrue/fx/bundler/perl"
-	"github.com/metrue/fx/bundler/python"
-	"github.com/metrue/fx/bundler/ruby"
-	"github.com/metrue/fx/bundler/rust"
-)
-
-// Bundle function to project
-func Bundle(workdir string, language string, fn string, deps ...string) error {
-	var bundler bundler.Bundler
-	switch language {
-	case "d":
-		bundler = d.New()
-	case "node":
-		bundler = node.New()
-	case "go":
-		bundler = golang.New()
-	case "java":
-		bundler = java.New()
-	case "julia":
-		bundler = julia.New()
-	case "perl":
-		bundler = perl.New()
-	case "python":
-		bundler = python.New()
-	case "ruby":
-		bundler = ruby.New()
-	case "rust":
-		bundler = rust.New()
-	default:
-		return fmt.Errorf("%s not suppported yet", language)
-	}
-	return bundler.Bundle(workdir, fn, deps...)
-}
--- a/bundle/bundler_test.go
+++ b/bundle/bundler_test.go
@@ -1,117 +0,0 @@
-package bundle
-
-import (
-	"io/ioutil"
-	"os"
-	"testing"
-)
-
-func createFn(content string, t *testing.T) string {
-	fd, err := ioutil.TempFile("", "fx_func_*.js")
-	if err != nil {
-		t.Fatal(err)
-	}
-	err = ioutil.WriteFile(fd.Name(), []byte(content), 0666)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	return fd.Name()
-}
-
-func TestBundle(t *testing.T) {
-	workdir, err := ioutil.TempDir("", "fx-test")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.RemoveAll(workdir)
-
-	cases := []struct {
-		workdir  string
-		language string
-		fn       string
-		deps     []string
-	}{
-		{
-			workdir:  workdir,
-			language: "d",
-			fn: `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}
-			`,
-		},
-		{
-			workdir:  workdir,
-			language: "go",
-			fn: `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}
-			`,
-		},
-		{
-			workdir:  workdir,
-			language: "java",
-			fn: `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}
-			`,
-		},
-		{
-			workdir:  workdir,
-			language: "julia",
-			fn: `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}
-			`,
-		},
-		{
-			workdir:  workdir,
-			language: "perl",
-			fn: `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}
-			`,
-		},
-		{
-			workdir:  workdir,
-			language: "python",
-			fn: `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}
-			`,
-		},
-		{
-			workdir:  workdir,
-			language: "ruby",
-			fn: `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}
-			`,
-		},
-		{
-			workdir:  workdir,
-			language: "rust",
-			fn: `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}
-			`,
-		},
-	}
-
-	for _, c := range cases {
-		fn := createFn(c.fn, t)
-		defer os.Remove(fn)
-
-		if err := Bundle(c.workdir, c.language, fn, c.deps...); err != nil {
-			t.Fatal(err)
-		}
-	}
-}
--- a/bundler/README.md
+++ b/bundler/README.md
@@ -1,63 +0,0 @@
-The only thing `fx` does is to make a single function to be an HTTP service, `fx` takes two steps to finish the process,
-* Wraps the function into a web server project and make it be the handler function of the HTTP request.
-* Builds the bundled web server to be Docker image, then run it as a Docker container and expose the service port.
-
-`bundler` is the component responsible for step 1: wrap a single function (and its dependencies) into a web server.  Take a Node web service as an example, the project looks like this,
-```
-helloworld
-├── Dockerfile
-├── app.js
-└── fx.js
-```
-
-And the codes is pretty simple,
-
-**app.js**
-```javascript
-const Koa = require('koa');
-const bodyParser = require('koa-bodyparser');
-const cors = require('@koa/cors');
-const fx = require('./fx');
-
-const app = new Koa();
-app.use(cors({
-  origin: '*',
-}));
-app.use(bodyParser());
-app.use(fx);
-
-app.listen(3000);
-```
-
-**fx.js**
-```javascript
-module.exports = (ctx) => {
-  ctx.body = 'hello world'
-}
-```
-
-**Dockerfile**
-```dockerfile
-FROM metrue/fx-node-base
-
-COPY . .
-EXPOSE 3000
-CMD ["node", "app.js"]
-```
-
-You can see that it's a web service built with `Koa`,  the request handler function defined in `fx.js` to response plain text `hello world`,  so to make a general JavaScript/Node function to be a web service, we only have to put it into `fx.js` above, then build and run it with Docker and that's it.
-
-To support different programming languages, `fx` needs to implement different `bundlers`, the reasons are,
-* The way to set up a web service is different in different languages
-* The way to manage dependency is different in different languages.
-
-So there will be (are) different `bundlers` in `fx`.
-```
-go-bundler: based on Gin
-ruby-bundler: based on Sinatra
-node-bundler: based on Koa
-python-bundler: based on flask
-...
-```
-
-
--- a/bundler/bundler.go
+++ b/bundler/bundler.go
@@ -1,88 +0,0 @@
-package bundler
-
-import (
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/gobuffalo/packd"
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/constants"
-	"github.com/metrue/fx/utils"
-)
-
-// Bundler defines interface
-type Bundler interface {
-	Scaffold(output string) error
-	Bundle(output string, fn string, deps ...string) error
-}
-
-// IsHandler check if it's handle file
-func IsHandler(name string, lang string) bool {
-	basename := filepath.Base(name)
-	nameWithoutExt := strings.TrimSuffix(basename, filepath.Ext(basename))
-	if constants.ExtLangMapping[filepath.Ext(basename)] != lang {
-		return false
-	}
-
-	return (nameWithoutExt == "fx" ||
-		// Fx is for Java
-		nameWithoutExt == "Fx" ||
-		// mod.rs is for Rust)
-		nameWithoutExt == "mod")
-}
-
-// Restore directory from packr box
-func Restore(box *packr.Box, output string) error {
-	if err := box.Walk(func(name string, fd packd.File) error {
-		content, err := box.Find(name)
-		if err != nil {
-			return err
-		}
-
-		dest := filepath.Join(output, name)
-		if err := utils.EnsureFile(dest); err != nil {
-			return err
-		}
-
-		if err := ioutil.WriteFile(dest, content, 0600); err != nil {
-			return err
-		}
-
-		return nil
-	}); err != nil {
-		return err
-	}
-	return nil
-}
-
-// Bundle bundle a function
-func Bundle(box *packr.Box, output string, language string, fn string, deps ...string) error {
-	if err := Restore(box, output); err != nil {
-		return err
-	}
-
-	if err := utils.Merge(output, deps...); err != nil {
-		return err
-	}
-
-	// Replace the default handler source file with given function source file
-	if err := filepath.Walk(output, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-
-		if IsHandler(path, language) {
-			if err := utils.CopyFile(fn, path); err != nil {
-				return err
-			}
-		}
-
-		return nil
-	}); err != nil {
-		return err
-	}
-
-	return nil
-}
--- a/bundler/bundler_test.go
+++ b/bundler/bundler_test.go
@@ -1,51 +0,0 @@
-package bundler
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-	"testing"
-
-	"github.com/gobuffalo/packr/v2"
-)
-
-func TestBundler(t *testing.T) {
-	t.Run("Restore", func(t *testing.T) {
-		box := packr.New("", "./node/assets")
-		outputDir, err := ioutil.TempDir("", "fx_koa")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-		if err := Restore(box, outputDir); err != nil {
-			t.Fatal(err)
-		}
-	})
-
-	t.Run("Bundle", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content := `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}`
-		if err = ioutil.WriteFile(fd.Name(), []byte(content), 0666); err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_koa")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		box := packr.New("", "./node/assets")
-		if err := Bundle(box, outputDir, "node", fd.Name()); err != nil {
-			t.Fatal(err)
-		}
-	})
-}
--- a/bundler/d/d-packr.go
+++ b/bundler/d/d-packr.go
@@ -1,8 +0,0 @@
-// +build !skippackr
-// Code generated by github.com/gobuffalo/packr/v2. DO NOT EDIT.
-
-// You can use the "packr clean" command to clean up this,
-// and any other packr generated files.
-package d
-
-import _ "github.com/metrue/fx/packrd"
--- a/bundler/d/d.go
+++ b/bundler/d/d.go
@@ -1,32 +0,0 @@
-package d
-
-import (
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/bundler"
-)
-
-// D defines d bundler
-type D struct {
-	assets *packr.Box
-}
-
-// New a koa bundler
-func New() *D {
-	return &D{
-		assets: packr.New("d", "./assets"),
-	}
-}
-
-// Scaffold a koa app
-func (d *D) Scaffold(output string) error {
-	return bundler.Restore(d.assets, output)
-}
-
-// Bundle a function into a koa project
-func (d *D) Bundle(output string, fn string, deps ...string) error {
-	return bundler.Bundle(d.assets, output, "d", fn, deps...)
-}
-
-var (
-	_ bundler.Bundler = &D{}
-)
--- a/bundler/go/go.go
+++ b/bundler/go/go.go
@@ -1,32 +0,0 @@
-package golang
-
-import (
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/bundler"
-)
-
-// Gin defines javascript bundler
-type Gin struct {
-	assets *packr.Box
-}
-
-// New a koa bundler
-func New() *Gin {
-	return &Gin{
-		assets: packr.New("go", "./assets"),
-	}
-}
-
-// Scaffold a koa app
-func (g *Gin) Scaffold(output string) error {
-	return bundler.Restore(g.assets, output)
-}
-
-// Bundle a function into a koa project
-func (g *Gin) Bundle(output string, fn string, deps ...string) error {
-	return bundler.Bundle(g.assets, output, "go", fn, deps...)
-}
-
-var (
-	_ bundler.Bundler = &Gin{}
-)
--- a/bundler/go/go_test.go
+++ b/bundler/go/go_test.go
@@ -1,143 +0,0 @@
-package golang
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-	"reflect"
-	"testing"
-
-	"github.com/metrue/fx/utils"
-)
-
-func TestKoaBundler(t *testing.T) {
-	t.Run("Scaffold", func(t *testing.T) {
-		outputDir, err := ioutil.TempDir("", "fx_koa")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		koa := New()
-		if err := koa.Scaffold(outputDir); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, _, _, err := utils.Diff(outputDir, "./assets")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if diff {
-			t.Fatalf("%s is not equal with %s", outputDir, "./assets")
-		}
-	})
-
-	t.Run("BundleSingleFunc", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content := `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}`
-		err = ioutil.WriteFile(fd.Name(), []byte(content), 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_koa")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		koa := New()
-		if err := koa.Bundle(outputDir, fd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(content)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-
-		preHandleFunc, err := ioutil.ReadFile("./assets/fx.go")
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !reflect.DeepEqual(pre, preHandleFunc) {
-			{
-			}
-			t.Fatalf("it should get %s but got %s", preHandleFunc, pre)
-		}
-	})
-
-	t.Run("BundleFuncAndDeps", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content, err := ioutil.ReadFile("./assets/fx.go")
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ioutil.WriteFile(fd.Name(), content, 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addFunc := `
-module.exports = (a, b) => a+b
-  `
-		addFd, err := ioutil.TempFile("", "fx_add_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ioutil.WriteFile(addFd.Name(), []byte(addFunc), 0644)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_koa")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		koa := New()
-		if err := koa.Bundle(outputDir, fd.Name(), addFd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(addFunc)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-		if pre != nil {
-			t.Fatal(pre)
-		}
-	})
-}
--- a/bundler/go/golang-packr.go
+++ b/bundler/go/golang-packr.go
@@ -1,8 +0,0 @@
-// +build !skippackr
-// Code generated by github.com/gobuffalo/packr/v2. DO NOT EDIT.
-
-// You can use the "packr clean" command to clean up this,
-// and any other packr generated files.
-package golang
-
-import _ "github.com/metrue/fx/packrd"
--- a/bundler/java/java-packr.go
+++ b/bundler/java/java-packr.go
@@ -1,8 +0,0 @@
-// +build !skippackr
-// Code generated by github.com/gobuffalo/packr/v2. DO NOT EDIT.
-
-// You can use the "packr clean" command to clean up this,
-// and any other packr generated files.
-package java
-
-import _ "github.com/metrue/fx/packrd"
--- a/bundler/java/java.go
+++ b/bundler/java/java.go
@@ -1,32 +0,0 @@
-package java
-
-import (
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/bundler"
-)
-
-// Java defines javascript bundler
-type Java struct {
-	assets *packr.Box
-}
-
-// New a koa bundler
-func New() *Java {
-	return &Java{
-		assets: packr.New("java", "./assets"),
-	}
-}
-
-// Scaffold a koa app
-func (k *Java) Scaffold(output string) error {
-	return bundler.Restore(k.assets, output)
-}
-
-// Bundle a function into a koa project
-func (k *Java) Bundle(output string, fn string, deps ...string) error {
-	return bundler.Bundle(k.assets, output, "java", fn, deps...)
-}
-
-var (
-	_ bundler.Bundler = &Java{}
-)
--- a/bundler/java/java_test.go
+++ b/bundler/java/java_test.go
@@ -1,155 +0,0 @@
-package java
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-	"reflect"
-	"testing"
-
-	"github.com/metrue/fx/utils"
-)
-
-func TestJavaBundler(t *testing.T) {
-	t.Run("Scaffold", func(t *testing.T) {
-		outputDir, err := ioutil.TempDir("", "fx_java")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		java := New()
-		if err := java.Scaffold(outputDir); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, _, _, err := utils.Diff(outputDir, "./assets")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if diff {
-			t.Fatalf("%s is not equal with %s", outputDir, "./assets")
-		}
-	})
-
-	t.Run("BundleSingleFunc", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.java")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content := `package fx;
-
-import io.javalin.Javalin;
-import org.json.JSONObject;
-
-public class app {
-    public static void main(String[] args) {
-        Javalin app = Javalin.start(3000);
-        Fx handler = new Fx();
-        app.post("/", ctx -> {
-            JSONObject obj = new JSONObject(ctx.body());
-            ctx.result(""+handler.handle(obj));
-        });
-    }
-}
-		`
-		err = ioutil.WriteFile(fd.Name(), []byte(content), 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_java")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		java := New()
-		if err := java.Bundle(outputDir, fd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(content)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-
-		preHandleFunc, err := ioutil.ReadFile("./assets/src/main/java/fx/Fx.java")
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !reflect.DeepEqual(pre, preHandleFunc) {
-			{
-			}
-			t.Fatalf("it should get %s but got %s", preHandleFunc, pre)
-		}
-	})
-
-	t.Run("BundleFuncAndDeps", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content, err := ioutil.ReadFile("./assets/src/main/java/fx/Fx.java")
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ioutil.WriteFile(fd.Name(), content, 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addFunc := `
-module.exports = (a, b) => a+b
-  `
-		addFd, err := ioutil.TempFile("", "fx_add_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ioutil.WriteFile(addFd.Name(), []byte(addFunc), 0644)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_java")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		java := New()
-		if err := java.Bundle(outputDir, fd.Name(), addFd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(addFunc)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-		if pre != nil {
-			t.Fatal(pre)
-		}
-	})
-}
--- a/bundler/julia/julia-packr.go
+++ b/bundler/julia/julia-packr.go
@@ -1,8 +0,0 @@
-// +build !skippackr
-// Code generated by github.com/gobuffalo/packr/v2. DO NOT EDIT.
-
-// You can use the "packr clean" command to clean up this,
-// and any other packr generated files.
-package julia
-
-import _ "github.com/metrue/fx/packrd"
--- a/bundler/julia/julia.go
+++ b/bundler/julia/julia.go
@@ -1,32 +0,0 @@
-package julia
-
-import (
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/bundler"
-)
-
-// Julia defines javascript bundler
-type Julia struct {
-	assets *packr.Box
-}
-
-// New a koa bundler
-func New() *Julia {
-	return &Julia{
-		assets: packr.New("julia", "./assets"),
-	}
-}
-
-// Scaffold a koa app
-func (k *Julia) Scaffold(output string) error {
-	return bundler.Restore(k.assets, output)
-}
-
-// Bundle a function into a koa project
-func (k *Julia) Bundle(output string, fn string, deps ...string) error {
-	return bundler.Bundle(k.assets, output, "julia", fn, deps...)
-}
-
-var (
-	_ bundler.Bundler = &Julia{}
-)
--- a/bundler/julia/julia_test.go
+++ b/bundler/julia/julia_test.go
@@ -1,148 +0,0 @@
-package julia
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-	"reflect"
-	"testing"
-
-	"github.com/metrue/fx/utils"
-)
-
-func TestJuliaBundler(t *testing.T) {
-	t.Run("Scaffold", func(t *testing.T) {
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Scaffold(outputDir); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, _, _, err := utils.Diff(outputDir, "./assets")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if diff {
-			t.Fatalf("%s is not equal with %s", outputDir, "./assets")
-		}
-	})
-
-	t.Run("BundleSingleFunc", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.julia")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content := `struct Input
-    a::Number
-    b::Number
-end
-
-fx = function(input::Input)
-    return input.a + input.b
-end
-		`
-		err = ioutil.WriteFile(fd.Name(), []byte(content), 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Bundle(outputDir, fd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle function should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(content)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-
-		preHandleFunc, err := ioutil.ReadFile("./assets/fx.jl")
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !reflect.DeepEqual(pre, preHandleFunc) {
-			{
-			}
-			t.Fatalf("it should get %s but got %s", preHandleFunc, pre)
-		}
-	})
-
-	t.Run("BundleFuncAndDeps", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content, err := ioutil.ReadFile("./assets/fx.jl")
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ioutil.WriteFile(fd.Name(), content, 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addFunc := `
-module.exports = (a, b) => a+b
-  `
-		addFd, err := ioutil.TempFile("", "fx_add_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ioutil.WriteFile(addFd.Name(), []byte(addFunc), 0644)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Bundle(outputDir, fd.Name(), addFd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(addFunc)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-		if pre != nil {
-			t.Fatal(pre)
-		}
-	})
-}
--- a/bundler/node/assets/app.js
+++ b/bundler/node/assets/app.js
@@ -1,17 +0,0 @@
-const Koa = require('koa');
-const bodyParser = require('koa-bodyparser');
-const cors = require('@koa/cors');
-const swStats = require('swagger-stats');
-const e2k = require('express-to-koa');
-const fx = require('./fx');
-
-const app = new Koa();
-
-app.use(e2k(swStats.getMiddleware({})));
-app.use(cors({
-  origin: '*',
-}));
-app.use(bodyParser());
-app.use(fx);
-
-app.listen(3000);
--- a/bundler/node/node-packr.go
+++ b/bundler/node/node-packr.go
@@ -1,8 +0,0 @@
-// +build !skippackr
-// Code generated by github.com/gobuffalo/packr/v2. DO NOT EDIT.
-
-// You can use the "packr clean" command to clean up this,
-// and any other packr generated files.
-package node
-
-import _ "github.com/metrue/fx/packrd"
--- a/bundler/node/node.go
+++ b/bundler/node/node.go
@@ -1,34 +0,0 @@
-package node
-
-import (
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/bundler"
-)
-
-const language = "node"
-
-// Node defines node bundler
-type Node struct {
-	assets *packr.Box
-}
-
-// New a koa bundler
-func New() *Node {
-	return &Node{
-		assets: packr.New("node", "./assets"),
-	}
-}
-
-// Scaffold a koa app
-func (k *Node) Scaffold(output string) error {
-	return bundler.Restore(k.assets, output)
-}
-
-// Bundle a function into a koa project
-func (k *Node) Bundle(output string, fn string, deps ...string) error {
-	return bundler.Bundle(k.assets, output, language, fn, deps...)
-}
-
-var (
-	_ bundler.Bundler = &Node{}
-)
--- a/bundler/node/node_test.go
+++ b/bundler/node/node_test.go
@@ -1,143 +0,0 @@
-package node
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-	"reflect"
-	"testing"
-
-	"github.com/metrue/fx/utils"
-)
-
-func TestNodeBundler(t *testing.T) {
-	t.Run("Scaffold", func(t *testing.T) {
-		outputDir, err := ioutil.TempDir("", "fx_koa")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		koa := New()
-		if err := koa.Scaffold(outputDir); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, _, _, err := utils.Diff(outputDir, "./assets")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if diff {
-			t.Fatalf("%s is not equal with %s", outputDir, "./assets")
-		}
-	})
-
-	t.Run("BundleSingleFunc", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content := `
-module.exports = (ctx) => {
-  ctx.body = 'hello fx'
-}`
-		err = ioutil.WriteFile(fd.Name(), []byte(content), 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_koa")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		koa := New()
-		if err := koa.Bundle(outputDir, fd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(content)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-
-		preHandleFunc, err := ioutil.ReadFile("./assets/fx.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !reflect.DeepEqual(pre, preHandleFunc) {
-			{
-			}
-			t.Fatalf("it should get %s but got %s", preHandleFunc, pre)
-		}
-	})
-
-	t.Run("BundleFuncAndDeps", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content, err := ioutil.ReadFile("./assets/fx.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ioutil.WriteFile(fd.Name(), content, 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addFunc := `
-module.exports = (a, b) => a+b
-  `
-		addFd, err := ioutil.TempFile("", "fx_add_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ioutil.WriteFile(addFd.Name(), []byte(addFunc), 0644)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_koa")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		koa := New()
-		if err := koa.Bundle(outputDir, fd.Name(), addFd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(addFunc)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-		if pre != nil {
-			t.Fatal(pre)
-		}
-	})
-}
--- a/bundler/perl/perl-packr.go
+++ b/bundler/perl/perl-packr.go
@@ -1,8 +0,0 @@
-// +build !skippackr
-// Code generated by github.com/gobuffalo/packr/v2. DO NOT EDIT.
-
-// You can use the "packr clean" command to clean up this,
-// and any other packr generated files.
-package perl
-
-import _ "github.com/metrue/fx/packrd"
--- a/bundler/perl/perl.go
+++ b/bundler/perl/perl.go
@@ -1,32 +0,0 @@
-package perl
-
-import (
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/bundler"
-)
-
-// Julia defines javascript bundler
-type Julia struct {
-	assets *packr.Box
-}
-
-// New a koa bundler
-func New() *Julia {
-	return &Julia{
-		assets: packr.New("perl", "./assets"),
-	}
-}
-
-// Scaffold a koa app
-func (k *Julia) Scaffold(output string) error {
-	return bundler.Restore(k.assets, output)
-}
-
-// Bundle a function into a koa project
-func (k *Julia) Bundle(output string, fn string, deps ...string) error {
-	return bundler.Bundle(k.assets, output, "perl", fn, deps...)
-}
-
-var (
-	_ bundler.Bundler = &Julia{}
-)
--- a/bundler/perl/perl_test.go
+++ b/bundler/perl/perl_test.go
@@ -1,148 +0,0 @@
-package perl
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-	"reflect"
-	"testing"
-
-	"github.com/metrue/fx/utils"
-)
-
-func TestJuliaBundler(t *testing.T) {
-	t.Run("Scaffold", func(t *testing.T) {
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Scaffold(outputDir); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, _, _, err := utils.Diff(outputDir, "./assets")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if diff {
-			t.Fatalf("%s is not equal with %s", outputDir, "./assets")
-		}
-	})
-
-	t.Run("BundleSingleFunc", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.julia")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content := `struct Input
-    a::Number
-    b::Number
-end
-
-fx = function(input::Input)
-    return input.a + input.b
-end
-		`
-		err = ioutil.WriteFile(fd.Name(), []byte(content), 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Bundle(outputDir, fd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle function should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(content)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-
-		preHandleFunc, err := ioutil.ReadFile("./assets/fx.pl")
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !reflect.DeepEqual(pre, preHandleFunc) {
-			{
-			}
-			t.Fatalf("it should get %s but got %s", preHandleFunc, pre)
-		}
-	})
-
-	t.Run("BundleFuncAndDeps", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content, err := ioutil.ReadFile("./assets/fx.pl")
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ioutil.WriteFile(fd.Name(), content, 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addFunc := `
-module.exports = (a, b) => a+b
-  `
-		addFd, err := ioutil.TempFile("", "fx_add_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ioutil.WriteFile(addFd.Name(), []byte(addFunc), 0644)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Bundle(outputDir, fd.Name(), addFd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(addFunc)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-		if pre != nil {
-			t.Fatal(pre)
-		}
-	})
-}
--- a/bundler/python/python-packr.go
+++ b/bundler/python/python-packr.go
@@ -1,8 +0,0 @@
-// +build !skippackr
-// Code generated by github.com/gobuffalo/packr/v2. DO NOT EDIT.
-
-// You can use the "packr clean" command to clean up this,
-// and any other packr generated files.
-package python
-
-import _ "github.com/metrue/fx/packrd"
--- a/bundler/python/python.go
+++ b/bundler/python/python.go
@@ -1,32 +0,0 @@
-package python
-
-import (
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/bundler"
-)
-
-// Julia defines javascript bundler
-type Julia struct {
-	assets *packr.Box
-}
-
-// New a koa bundler
-func New() *Julia {
-	return &Julia{
-		assets: packr.New("python", "./assets"),
-	}
-}
-
-// Scaffold a koa app
-func (k *Julia) Scaffold(output string) error {
-	return bundler.Restore(k.assets, output)
-}
-
-// Bundle a function into a koa project
-func (k *Julia) Bundle(output string, fn string, deps ...string) error {
-	return bundler.Bundle(k.assets, output, "python", fn, deps...)
-}
-
-var (
-	_ bundler.Bundler = &Julia{}
-)
--- a/bundler/python/python_test.go
+++ b/bundler/python/python_test.go
@@ -1,148 +0,0 @@
-package python
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-	"reflect"
-	"testing"
-
-	"github.com/metrue/fx/utils"
-)
-
-func TestJuliaBundler(t *testing.T) {
-	t.Run("Scaffold", func(t *testing.T) {
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Scaffold(outputDir); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, _, _, err := utils.Diff(outputDir, "./assets")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if diff {
-			t.Fatalf("%s is not equal with %s", outputDir, "./assets")
-		}
-	})
-
-	t.Run("BundleSingleFunc", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.julia")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content := `struct Input
-    a::Number
-    b::Number
-end
-
-fx = function(input::Input)
-    return input.a + input.b
-end
-		`
-		err = ioutil.WriteFile(fd.Name(), []byte(content), 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Bundle(outputDir, fd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle function should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(content)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-
-		preHandleFunc, err := ioutil.ReadFile("./assets/fx.py")
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !reflect.DeepEqual(pre, preHandleFunc) {
-			{
-			}
-			t.Fatalf("it should get %s but got %s", preHandleFunc, pre)
-		}
-	})
-
-	t.Run("BundleFuncAndDeps", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content, err := ioutil.ReadFile("./assets/fx.py")
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ioutil.WriteFile(fd.Name(), content, 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addFunc := `
-module.exports = (a, b) => a+b
-  `
-		addFd, err := ioutil.TempFile("", "fx_add_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ioutil.WriteFile(addFd.Name(), []byte(addFunc), 0644)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Bundle(outputDir, fd.Name(), addFd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(addFunc)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-		if pre != nil {
-			t.Fatal(pre)
-		}
-	})
-}
--- a/bundler/ruby/ruby-packr.go
+++ b/bundler/ruby/ruby-packr.go
@@ -1,8 +0,0 @@
-// +build !skippackr
-// Code generated by github.com/gobuffalo/packr/v2. DO NOT EDIT.
-
-// You can use the "packr clean" command to clean up this,
-// and any other packr generated files.
-package ruby
-
-import _ "github.com/metrue/fx/packrd"
--- a/bundler/ruby/ruby.go
+++ b/bundler/ruby/ruby.go
@@ -1,32 +0,0 @@
-package ruby
-
-import (
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/bundler"
-)
-
-// Julia defines javascript bundler
-type Julia struct {
-	assets *packr.Box
-}
-
-// New a koa bundler
-func New() *Julia {
-	return &Julia{
-		assets: packr.New("ruby", "./assets"),
-	}
-}
-
-// Scaffold a koa app
-func (k *Julia) Scaffold(output string) error {
-	return bundler.Restore(k.assets, output)
-}
-
-// Bundle a function into a koa project
-func (k *Julia) Bundle(output string, fn string, deps ...string) error {
-	return bundler.Bundle(k.assets, output, "ruby", fn, deps...)
-}
-
-var (
-	_ bundler.Bundler = &Julia{}
-)
--- a/bundler/ruby/ruby_test.go
+++ b/bundler/ruby/ruby_test.go
@@ -1,148 +0,0 @@
-package ruby
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-	"reflect"
-	"testing"
-
-	"github.com/metrue/fx/utils"
-)
-
-func TestJuliaBundler(t *testing.T) {
-	t.Run("Scaffold", func(t *testing.T) {
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Scaffold(outputDir); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, _, _, err := utils.Diff(outputDir, "./assets")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if diff {
-			t.Fatalf("%s is not equal with %s", outputDir, "./assets")
-		}
-	})
-
-	t.Run("BundleSingleFunc", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.julia")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content := `struct Input
-    a::Number
-    b::Number
-end
-
-fx = function(input::Input)
-    return input.a + input.b
-end
-		`
-		err = ioutil.WriteFile(fd.Name(), []byte(content), 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Bundle(outputDir, fd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle function should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(content)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-
-		preHandleFunc, err := ioutil.ReadFile("./assets/fx.rb")
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !reflect.DeepEqual(pre, preHandleFunc) {
-			{
-			}
-			t.Fatalf("it should get %s but got %s", preHandleFunc, pre)
-		}
-	})
-
-	t.Run("BundleFuncAndDeps", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content, err := ioutil.ReadFile("./assets/fx.rb")
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ioutil.WriteFile(fd.Name(), content, 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addFunc := `
-module.exports = (a, b) => a+b
-  `
-		addFd, err := ioutil.TempFile("", "fx_add_func_*.js")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ioutil.WriteFile(addFd.Name(), []byte(addFunc), 0644)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_julia")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		julia := New()
-		if err := julia.Bundle(outputDir, fd.Name(), addFd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(addFunc)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-		if pre != nil {
-			t.Fatal(pre)
-		}
-	})
-}
--- a/bundler/rust/rust-packr.go
+++ b/bundler/rust/rust-packr.go
@@ -1,8 +0,0 @@
-// +build !skippackr
-// Code generated by github.com/gobuffalo/packr/v2. DO NOT EDIT.
-
-// You can use the "packr clean" command to clean up this,
-// and any other packr generated files.
-package rust
-
-import _ "github.com/metrue/fx/packrd"
--- a/bundler/rust/rust.go
+++ b/bundler/rust/rust.go
@@ -1,32 +0,0 @@
-package rust
-
-import (
-	"github.com/gobuffalo/packr/v2"
-	"github.com/metrue/fx/bundler"
-)
-
-// Rust defines javascript bundler
-type Rust struct {
-	assets *packr.Box
-}
-
-// New a koa bundler
-func New() *Rust {
-	return &Rust{
-		assets: packr.New("rust", "./assets"),
-	}
-}
-
-// Scaffold a koa app
-func (k *Rust) Scaffold(output string) error {
-	return bundler.Restore(k.assets, output)
-}
-
-// Bundle a function into a koa project
-func (k *Rust) Bundle(output string, fn string, deps ...string) error {
-	return bundler.Bundle(k.assets, output, "rust", fn, deps...)
-}
-
-var (
-	_ bundler.Bundler = &Rust{}
-)
--- a/bundler/rust/rust_test.go
+++ b/bundler/rust/rust_test.go
@@ -1,148 +0,0 @@
-package rust
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-	"reflect"
-	"testing"
-
-	"github.com/metrue/fx/utils"
-)
-
-func TestRustBundler(t *testing.T) {
-	t.Run("Scaffold", func(t *testing.T) {
-		outputDir, err := ioutil.TempDir("", "fx_rust")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		rust := New()
-		if err := rust.Scaffold(outputDir); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, _, _, err := utils.Diff(outputDir, "./assets")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if diff {
-			t.Fatalf("%s is not equal with %s", outputDir, "./assets")
-		}
-	})
-
-	t.Run("BundleSingleFunc", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.rust")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content := `struct Input
-    a::Number
-    b::Number
-end
-
-fx = function(input::Input)
-    return input.a + input.b
-end
-		`
-		err = ioutil.WriteFile(fd.Name(), []byte(content), 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_rust")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		rust := New()
-		if err := rust.Bundle(outputDir, fd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle function should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(content)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-
-		preHandleFunc, err := ioutil.ReadFile("./assets/src/fns/mod.rs")
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !reflect.DeepEqual(pre, preHandleFunc) {
-			{
-			}
-			t.Fatalf("it should get %s but got %s", preHandleFunc, pre)
-		}
-	})
-
-	t.Run("BundleFuncAndDeps", func(t *testing.T) {
-		fd, err := ioutil.TempFile("", "fx_func_*.rs")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer os.Remove(fd.Name())
-
-		content, err := ioutil.ReadFile("./assets/src/fns/mod.rs")
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = ioutil.WriteFile(fd.Name(), content, 0666)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		addFunc := `
-module.exports = (a, b) => a+b
-  `
-		addFd, err := ioutil.TempFile("", "fx_add_func_*.rs")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		err = ioutil.WriteFile(addFd.Name(), []byte(addFunc), 0644)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		outputDir, err := ioutil.TempDir("", "fx_rust")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer os.RemoveAll(outputDir)
-
-		rust := New()
-		if err := rust.Bundle(outputDir, fd.Name(), addFd.Name()); err != nil {
-			t.Fatal(err)
-		}
-
-		diff, pre, cur, err := utils.Diff("./assets", outputDir)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !diff {
-			t.Fatalf("handle functino should be changed")
-		}
-
-		if !reflect.DeepEqual(cur, []byte(addFunc)) {
-			t.Fatalf("it should be %s but got %s", content, cur)
-		}
-		if pre != nil {
-			t.Fatal(pre)
-		}
-	})
-}
--- a/config/config.go
+++ b/config/config.go
@@ -0,0 +1,207 @@
+package config
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"os/user"
+	"path"
+	"path/filepath"
+
+	dockerInfra "github.com/metrue/fx/infra/docker"
+	"github.com/metrue/fx/types"
+	"github.com/metrue/fx/utils"
+	"github.com/mitchellh/go-homedir"
+)
+
+// Configer manage fx config
+type Configer interface {
+	GetCurrentCloud() ([]byte, error)
+	GetCurrentCloudType() (string, error)
+	GetKubeConfig() (string, error)
+	UseCloud(name string) error
+	View() ([]byte, error)
+	AddCloud(name string, meta []byte) error
+	Dir() (string, error)
+}
+
+// Config config of fx
+type Config struct {
+	configFile string
+	container  *Container
+}
+
+const defaultFxConfig = "~/.fx/config.yml"
+
+// LoadDefault load default config
+func LoadDefault() (*Config, error) {
+	configFile, err := homedir.Expand(defaultFxConfig)
+	if err != nil {
+		return nil, err
+	}
+	if os.Getenv("FX_CONFIG") != "" {
+		configFile = os.Getenv("FX_CONFIG")
+	}
+
+	if _, err := os.Stat(configFile); os.IsNotExist(err) {
+		if err := utils.EnsureFile(configFile); err != nil {
+			return nil, err
+		}
+	}
+	return load(configFile)
+}
+
+func load(configFile string) (*Config, error) {
+	container, err := CreateContainer(configFile)
+	if err != nil {
+		return nil, err
+	}
+	config := &Config{
+		configFile: configFile,
+		container:  container,
+	}
+
+	if container.get("clouds") == nil {
+		if err := config.writeDefaultConfig(); err != nil {
+			return nil, err
+		}
+	}
+	return config, nil
+}
+
+// Load config
+func Load(configFile string) (*Config, error) {
+	if configFile == "" {
+		return nil, fmt.Errorf("invalid config file")
+	}
+
+	if _, err := os.Stat(configFile); os.IsNotExist(err) {
+		if err := utils.EnsureFile(configFile); err != nil {
+			return nil, err
+		}
+	}
+	return load(configFile)
+}
+
+// AddCloud add k8s cloud
+func (c *Config) AddCloud(name string, meta []byte) error {
+	var cloudMeta map[string]interface{}
+	if err := json.Unmarshal(meta, &cloudMeta); err != nil {
+		return err
+	}
+
+	cloudType, ok := cloudMeta["type"].(string)
+	if !ok || cloudType == "" {
+		return fmt.Errorf("unknown cloud type")
+	}
+
+	if cloudType == types.CloudTypeK8S {
+		dir := path.Dir(c.configFile)
+		kubecfg := path.Join(dir, name+".kubeconfig")
+		if err := utils.EnsureFile(kubecfg); err != nil {
+			return err
+		}
+		config, ok := cloudMeta["config"].(string)
+		if !ok {
+			return fmt.Errorf("invalid k8s config")
+		}
+		if err := ioutil.WriteFile(kubecfg, []byte(config), 0666); err != nil {
+			return err
+		}
+	}
+
+	if err := c.container.set("clouds."+name, cloudMeta); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// UseCloud set cloud instance with name as current context
+func (c *Config) UseCloud(name string) error {
+	if name == "" {
+		return fmt.Errorf("could not use empty name")
+	}
+
+	if c.container.get("clouds."+name) == nil {
+		return fmt.Errorf("no such cloud with name: %s", name)
+	}
+	return c.container.set("current_cloud", name)
+}
+
+// View view current config
+func (c *Config) View() ([]byte, error) {
+	return ioutil.ReadFile(c.configFile)
+}
+
+// GetCurrentCloud get current using cloud's meta
+func (c *Config) GetCurrentCloud() ([]byte, error) {
+	name, ok := c.container.get("current_cloud").(string)
+	if !ok {
+		return nil, fmt.Errorf("no active cloud")
+	}
+	meta := c.container.get("clouds." + name)
+	if meta == nil {
+		return nil, fmt.Errorf("invalid config")
+	}
+	return json.Marshal(meta)
+}
+
+// GetCurrentCloudType get current cloud type
+func (c *Config) GetCurrentCloudType() (string, error) {
+	name, ok := c.container.get("current_cloud").(string)
+	if !ok {
+		return "", fmt.Errorf("no active cloud")
+	}
+	return c.container.get("clouds." + name + ".type").(string), nil
+}
+
+// GetKubeConfig get kubeconfig
+func (c *Config) GetKubeConfig() (string, error) {
+	name, ok := c.container.get("current_cloud").(string)
+	if !ok {
+		return "", fmt.Errorf("no active cloud")
+	}
+	dir := path.Dir(c.configFile)
+	kubecfg := path.Join(dir, name+".kubeconfig")
+	return kubecfg, nil
+}
+
+func (c *Config) writeDefaultConfig() error {
+	me, err := user.Current()
+	if err != nil {
+		return err
+	}
+
+	defaultCloud := &dockerInfra.Cloud{
+		IP:   "127.0.0.1",
+		User: me.Username,
+		Name: "default",
+		Type: types.CloudTypeDocker,
+	}
+	meta, err := defaultCloud.Dump()
+	if err != nil {
+		return err
+	}
+	if err := c.container.set("clouds", map[string]interface{}{}); err != nil {
+		return err
+	}
+	if err := c.AddCloud("default", meta); err != nil {
+		return err
+	}
+	return c.UseCloud("default")
+}
+
+// Dir get directory of config
+func (c *Config) Dir() (string, error) {
+	p, err := filepath.Abs(c.configFile)
+	if err != nil {
+		return "", err
+	}
+	return path.Dir(p), nil
+}
+
+var (
+	_ Configer = &Config{}
+)
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -0,0 +1,131 @@
+package config
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/user"
+	"path/filepath"
+	"reflect"
+	"testing"
+
+	k8sInfra "github.com/metrue/fx/infra/k8s"
+	"github.com/metrue/fx/types"
+)
+
+func TestConfig(t *testing.T) {
+	configPath := "./tmp/config.yml"
+	defer func() {
+		if err := os.RemoveAll("./tmp/config.yml"); err != nil {
+			t.Fatal(err)
+		}
+	}()
+
+	// default cloud
+	c, err := Load(configPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defaultMeta, err := c.GetCurrentCloud()
+	if err != nil {
+		t.Fatal(err)
+	}
+	var cloudMeta map[string]string
+	if err := json.Unmarshal(defaultMeta, &cloudMeta); err != nil {
+		t.Fatal(err)
+	}
+	if cloudMeta["ip"] != "127.0.0.1" {
+		t.Fatalf("should get %s but got %s", "127.0.0.1", cloudMeta["ip"])
+	}
+
+	me, _ := user.Current()
+	if cloudMeta["user"] != me.Username {
+		t.Fatalf("should get %s but got %s", me.Username, cloudMeta["user"])
+	}
+	if cloudMeta["type"] != types.CloudTypeDocker {
+		t.Fatalf("should get %s but got %s", types.CloudTypeDocker, cloudMeta["type"])
+	}
+	if cloudMeta["name"] != "default" {
+		t.Fatalf("should get %s but got %s", "default", cloudMeta["name"])
+	}
+
+	n1, err := k8sInfra.CreateNode(
+		"1.1.1.1",
+		"user-1",
+		"k3s-master",
+		"master-node",
+	)
+	if err != nil {
+		t.Fatal(err)
+	}
+	n2, err := k8sInfra.CreateNode(
+		"1.1.1.1",
+		"user-1",
+		"k3s-agent",
+		"agent-node-1",
+	)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	kName := "k8s-1"
+	kubeconf := "./tmp/" + kName + "config.yml"
+	defer func() {
+		if err := os.RemoveAll(kubeconf); err != nil {
+			t.Fatal(err)
+		}
+	}()
+
+	// add k8s cloud
+	kCloud := k8sInfra.NewCloud(kubeconf, n1, n2)
+	kMeta, err := kCloud.Dump()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := c.AddCloud(kName, kMeta); err != nil {
+		t.Fatal(err)
+	}
+
+	curMeta, err := c.GetCurrentCloud()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !reflect.DeepEqual(curMeta, defaultMeta) {
+		t.Fatalf("should get %v but got %v", defaultMeta, curMeta)
+	}
+
+	if err := c.UseCloud("cloud-not-existed"); err == nil {
+		t.Fatalf("should get error when there is not given cloud name")
+	}
+
+	if err := c.UseCloud(kName); err != nil {
+		t.Fatal(err)
+	}
+
+	curMeta, err = c.GetCurrentCloud()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if reflect.DeepEqual(curMeta, kMeta) {
+		t.Fatalf("should get %v but got %v", kMeta, curMeta)
+	}
+
+	body, err := c.View()
+	if err != nil {
+		t.Fatal(err)
+	}
+	fmt.Println(string(body))
+
+	dir, err := c.Dir()
+	if err != nil {
+		t.Fatal(err)
+	}
+	here, err := os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if dir != filepath.Join(here, "./tmp") {
+		t.Fatalf("should get %s but got %s", "./tmp", dir)
+	}
+}
--- a/config/container.go
+++ b/config/container.go
@@ -0,0 +1,73 @@
+package config
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+	"sync"
+
+	"github.com/metrue/fx/utils"
+	"github.com/spf13/viper"
+)
+
+// Container config container, wrap viper as a key-value store with lock
+type Container struct {
+	mux   sync.Mutex
+	store string
+}
+
+// CreateContainer new a container
+func CreateContainer(storeFile string) (*Container, error) {
+	if err := utils.EnsureFile(storeFile); err != nil {
+		return nil, err
+	}
+
+	dir := filepath.Dir(storeFile)
+	ext := filepath.Ext(storeFile)
+	name := filepath.Base(storeFile)
+	viper.AddConfigPath(dir)
+	viper.SetConfigName(strings.Replace(name, ext, "", 1))
+	viper.SetConfigType(strings.Replace(ext, ".", "", 1))
+	if err := viper.ReadInConfig(); err != nil {
+		return nil, err
+	}
+	return &Container{
+		store: storeFile,
+	}, nil
+
+}
+
+func (c *Container) set(key string, value interface{}) error {
+	c.mux.Lock()
+	defer c.mux.Unlock()
+
+	if key == "" {
+		return fmt.Errorf("empty key not allowed")
+	}
+
+	keys := strings.Split(key, ".")
+	if len(keys) == 1 {
+		viper.Set(key, value)
+	} else {
+		prePath := keys[0]
+		for i := 1; i < len(keys)-2; i++ {
+			prePath += "." + keys[i]
+		}
+		if viper.Get(prePath) == nil {
+			return fmt.Errorf("%s not existed", prePath)
+		}
+		viper.Set(key, value)
+	}
+	// viper.Set(key, value)
+	if err := viper.WriteConfig(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (c *Container) get(key string) interface{} {
+	c.mux.Lock()
+	defer c.mux.Unlock()
+
+	return viper.Get(key)
+}
--- a/config/container_test.go
+++ b/config/container_test.go
@@ -0,0 +1,84 @@
+package config
+
+import (
+	"os"
+	"testing"
+)
+
+func TestContainer(t *testing.T) {
+	configPath := "./tmp/container.yml"
+	defer func() {
+		if err := os.RemoveAll("./tmp/container.yml"); err != nil {
+			t.Fatal(err)
+		}
+	}()
+	c, err := CreateContainer(configPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := c.set("", ""); err == nil {
+		t.Fatalf("should get error when key is empty")
+	}
+
+	if c.get("1") != nil {
+		t.Fatalf("should get %v but got %v", nil, c.get("key"))
+	}
+
+	// create
+	if err := c.set("1", "1"); err != nil {
+		t.Fatal(err)
+	}
+
+	// read
+	if c.get("1").(string) != "1" {
+		t.Fatalf("should get %s but got %s", "val-1", c.get("key"))
+	}
+
+	// invaliad set
+	if err := c.set("1.1", "1.1"); err != nil {
+		t.Fatal(err)
+	}
+	if c.get("1.1").(string) != "1.1" {
+		t.Fatalf("should get 1.1 but got %s", c.get("1.1"))
+	}
+
+	// update
+	if err := c.set("1", "11"); err != nil {
+		t.Fatal(err)
+	}
+	if c.get("1").(string) != "11" {
+		t.Fatalf("should get 11 but got %s", c.get("1").(string))
+	}
+
+	// nested set
+	if err := c.set("2.2.2.2", "2222"); err == nil {
+		t.Fatalf("should throw error since 2.2.2 not ready yet")
+	}
+
+	if err := c.set("2", map[string]interface{}{
+		"2": map[string]interface{}{
+			"2": "2",
+		},
+	}); err != nil {
+		t.Fatal(err)
+	}
+
+	if c.get("2.2.2").(string) != "2" {
+		t.Fatalf("should get 2 but got %s", c.get("2.2.2"))
+	}
+	if err := c.set("2.2.2.2", "2222"); err != nil {
+		t.Fatal(err)
+	}
+	if c.get("2.2.2.2").(string) != "2222" {
+		t.Fatalf("should get 2222 but got %s", c.get("2.2.2.2"))
+	}
+
+	if err := c.set("2.2.2.1", "1111"); err != nil {
+		t.Fatal(err)
+	}
+
+	if c.get("2.2.2.1").(string) != "1111" {
+		t.Fatalf("should get 1111 but got %s", c.get("2.2.2.1"))
+	}
+}
--- a/config/env.go
+++ b/config/env.go
@@ -0,0 +1,14 @@
+package config
+
+import (
+	"os"
+)
+
+// DisableContainerAutoremove to tell if to run container with --rm
+var DisableContainerAutoremove = false
+
+func init() {
+	if os.Getenv("DISABLE_CONTAINER_AUTOREMOVE") == "true" {
+		DisableContainerAutoremove = true
+	}
+}
--- a/config/env_test.go
+++ b/config/env_test.go
@@ -0,0 +1,17 @@
+package config
+
+import (
+	"os"
+	"testing"
+)
+
+var _ = func() (_ struct{}) {
+	os.Setenv("DISABLE_CONTAINER_AUTOREMOVE", "true")
+	return
+}()
+
+func TestEnvLoad(t *testing.T) {
+	if !DisableContainerAutoremove {
+		t.Fatalf("should be true after set")
+	}
+}
--- a/constants/languages.go
+++ b/constants/languages.go
@@ -1,15 +0,0 @@
-package constants
-
-// ExtLangMapping file extension mapping with programming language
-var ExtLangMapping = map[string]string{
-	".js":   "node",
-	".go":   "go",
-	".rb":   "ruby",
-	".py":   "python",
-	".php":  "php",
-	".jl":   "julia",
-	".java": "java",
-	".d":    "d",
-	".rs":   "rust",
-	".pl":   "perl",
-}
--- a/container_runtimes/docker/http/api.go
+++ b/container_runtimes/docker/http/api.go
@@ -18,10 +18,12 @@ import (
 	"github.com/apex/log"
 	dockerTypes "github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/container"
+	dockerTypesContainer "github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/api/types/network"
 	"github.com/docker/go-connections/nat"
 	"github.com/google/go-querystring/query"
 	"github.com/google/uuid"
+	fxConfig "github.com/metrue/fx/config"
 	containerruntimes "github.com/metrue/fx/container_runtimes"
 	"github.com/metrue/fx/types"
 	"github.com/metrue/fx/utils"
@@ -30,32 +32,10 @@ import (

 // API interact with dockerd http api
 type API struct {
-	host     string
-	port     string
 	endpoint string
 	version  string
 }

-// New a API
-func New(host string, port string) *API {
-	return &API{
-		host: host,
-		port: port,
-	}
-}
-
-// Initialize an API
-func (api *API) Initialize() error {
-	addr := api.host + ":" + api.port
-	v, err := version(addr)
-	if err != nil {
-		return err
-	}
-	endpoint := fmt.Sprintf("http://%s:%s/v%s", api.host, api.port, v)
-	api.endpoint = endpoint
-	return nil
-}
-
 // Create a API
 func Create(host string, port string) (*API, error) {
 	addr := host + ":" + port
@@ -154,8 +134,7 @@ func (api *API) post(path string, body []byte, expectStatus int, v interface{})

 // Version get version of docker engine
 func (api *API) Version(ctx context.Context) (string, error) {
-	addr := api.host + ":" + api.port
-	return version(addr)
+	return version(api.endpoint)
 }

 func version(endpoint string) (string, error) {
@@ -418,13 +397,13 @@ func (api *API) StartContainer(ctx context.Context, name string, image string, b
 		portSet[port] = struct{}{}
 		portMap[port] = bindings
 	}
-	config := &container.Config{
+	config := &dockerTypesContainer.Config{
 		Image:        image,
 		ExposedPorts: portSet,
 	}

-	hostConfig := &container.HostConfig{
-		AutoRemove:   false,
+	hostConfig := &dockerTypesContainer.HostConfig{
+		AutoRemove:   !fxConfig.DisableContainerAutoremove,
 		PortBindings: portMap,
 	}

@@ -474,82 +453,11 @@ func (api *API) StartContainer(ctx context.Context, name string, image string, b
 		return errors.New(msg)
 	}

-	// wait seconds for container starting
-	time.Sleep(3 * time.Second)
-
-	info, err := api.inspect(createRes.ID)
-	if err != nil {
-		return errors.Wrap(err, "failed to inspect container "+createRes.ID)
+	if _, err = api.inspect(createRes.ID); err != nil {
+		msg := fmt.Sprintf("inspect container %s error", name)
+		return errors.Wrap(err, msg)
 	}

-	if !info.State.Running {
-		logs, err := api.logs(createRes.ID)
-		if err != nil {
-			return errors.Wrap(err, "could not get logs of container "+createRes.ID)
-		}
-
-		if err := api.RemoveContainer(ctx, createRes.ID); err != nil {
-			msg := fmt.Sprintf("remove container %s failed, and container started with logs: %s", createRes.ID, string(logs))
-			return errors.Wrap(err, msg)
-		}
-
-		return fmt.Errorf("container start failure: %s", logs)
-	}
-
-	return nil
-}
-
-func (api *API) logs(id string) ([]byte, error) {
-	query := url.Values{}
-	query.Set("stdout", "true")
-	query.Set("stderr", "true")
-	path := fmt.Sprintf("/containers/%s/logs?%s", id, query.Encode())
-	url := fmt.Sprintf("%s%s", api.endpoint, path)
-	request, err := http.NewRequest("GET", url, nil)
-	if err != nil {
-		return nil, err
-	}
-	client := &http.Client{Timeout: 20 * time.Second}
-	resp, err := client.Do(request)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode == 200 {
-		b, err := ioutil.ReadAll(resp.Body)
-		if err != nil {
-			return nil, err
-		}
-		return b, nil
-	}
-	return nil, fmt.Errorf("get logs of container %s failed: %d", id, resp.StatusCode)
-}
-
-// RemoveContainer remove a container
-func (api *API) RemoveContainer(ctx context.Context, id string) error {
-	query := url.Values{}
-	query.Set("v", "true")
-	path := fmt.Sprintf("/containers/%s?%s", id, query.Encode())
-	url := fmt.Sprintf("%s%s", api.endpoint, path)
-	request, err := http.NewRequest("DELETE", url, nil)
-	if err != nil {
-		return err
-	}
-	client := &http.Client{Timeout: 20 * time.Second}
-	resp, err := client.Do(request)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-
-	output, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		return errors.Wrap(err, "read response body of remove container request failed")
-	}
-	if resp.StatusCode != 204 {
-		return fmt.Errorf("could not remove container %s: %s", id, string(output))
-	}
 	return nil
 }

--- a/container_runtimes/docker/http/asserts/dockerfiles/base/node/Dockerfile
+++ b/container_runtimes/docker/http/asserts/dockerfiles/base/node/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:alpine
+FROM node:latest

 COPY . .
 RUN npm install
--- a/container_runtimes/docker/sdk/docker.go
+++ b/container_runtimes/docker/sdk/docker.go
@@ -18,6 +18,7 @@ import (
 	"github.com/docker/docker/client"
 	"github.com/docker/go-connections/nat"
 	"github.com/google/uuid"
+	fxConfig "github.com/metrue/fx/config"
 	containerruntimes "github.com/metrue/fx/container_runtimes"
 	"github.com/metrue/fx/types"
 	"github.com/metrue/fx/utils"
@@ -161,7 +162,7 @@ func (d *Docker) StartContainer(ctx context.Context, name string, image string,
 	}

 	hostConfig := &dockerTypesContainer.HostConfig{
-		AutoRemove:   false,
+		AutoRemove:   !fxConfig.DisableContainerAutoremove,
 		PortBindings: portMap,
 	}
 	resp, err := d.ContainerCreate(ctx, config, hostConfig, nil, name)
@@ -244,11 +245,6 @@ func (d *Docker) Version(ctx context.Context) (string, error) {
 	return ping.APIVersion, nil
 }

-// RemoveContainer remove container
-func (d *Docker) RemoveContainer(ctx context.Context, id string) error {
-	panic("no implemented yet")
-}
-
 var (
 	_ containerruntimes.ContainerRuntime = &Docker{}
 )
--- a/container_runtimes/mocks/runtime.go
+++ b/container_runtimes/mocks/runtime.go
@@ -1,178 +0,0 @@
-// Code generated by MockGen. DO NOT EDIT.
-// Source: runtimes.go
-
-// Package mock_containerruntimes is a generated GoMock package.
-package mock_containerruntimes
-
-import (
-	context "context"
-	gomock "github.com/golang/mock/gomock"
-	types "github.com/metrue/fx/types"
-	reflect "reflect"
-)
-
-// MockContainerRuntime is a mock of ContainerRuntime interface
-type MockContainerRuntime struct {
-	ctrl     *gomock.Controller
-	recorder *MockContainerRuntimeMockRecorder
-}
-
-// MockContainerRuntimeMockRecorder is the mock recorder for MockContainerRuntime
-type MockContainerRuntimeMockRecorder struct {
-	mock *MockContainerRuntime
-}
-
-// NewMockContainerRuntime creates a new mock instance
-func NewMockContainerRuntime(ctrl *gomock.Controller) *MockContainerRuntime {
-	mock := &MockContainerRuntime{ctrl: ctrl}
-	mock.recorder = &MockContainerRuntimeMockRecorder{mock}
-	return mock
-}
-
-// EXPECT returns an object that allows the caller to indicate expected use
-func (m *MockContainerRuntime) EXPECT() *MockContainerRuntimeMockRecorder {
-	return m.recorder
-}
-
-// BuildImage mocks base method
-func (m *MockContainerRuntime) BuildImage(ctx context.Context, workdir, name string) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "BuildImage", ctx, workdir, name)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// BuildImage indicates an expected call of BuildImage
-func (mr *MockContainerRuntimeMockRecorder) BuildImage(ctx, workdir, name interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "BuildImage", reflect.TypeOf((*MockContainerRuntime)(nil).BuildImage), ctx, workdir, name)
-}
-
-// PushImage mocks base method
-func (m *MockContainerRuntime) PushImage(ctx context.Context, name string) (string, error) {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "PushImage", ctx, name)
-	ret0, _ := ret[0].(string)
-	ret1, _ := ret[1].(error)
-	return ret0, ret1
-}
-
-// PushImage indicates an expected call of PushImage
-func (mr *MockContainerRuntimeMockRecorder) PushImage(ctx, name interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "PushImage", reflect.TypeOf((*MockContainerRuntime)(nil).PushImage), ctx, name)
-}
-
-// InspectImage mocks base method
-func (m *MockContainerRuntime) InspectImage(ctx context.Context, name string, img interface{}) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "InspectImage", ctx, name, img)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// InspectImage indicates an expected call of InspectImage
-func (mr *MockContainerRuntimeMockRecorder) InspectImage(ctx, name, img interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "InspectImage", reflect.TypeOf((*MockContainerRuntime)(nil).InspectImage), ctx, name, img)
-}
-
-// TagImage mocks base method
-func (m *MockContainerRuntime) TagImage(ctx context.Context, name, tag string) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "TagImage", ctx, name, tag)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// TagImage indicates an expected call of TagImage
-func (mr *MockContainerRuntimeMockRecorder) TagImage(ctx, name, tag interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "TagImage", reflect.TypeOf((*MockContainerRuntime)(nil).TagImage), ctx, name, tag)
-}
-
-// StartContainer mocks base method
-func (m *MockContainerRuntime) StartContainer(ctx context.Context, name, image string, bindings []types.PortBinding) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "StartContainer", ctx, name, image, bindings)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// StartContainer indicates an expected call of StartContainer
-func (mr *MockContainerRuntimeMockRecorder) StartContainer(ctx, name, image, bindings interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StartContainer", reflect.TypeOf((*MockContainerRuntime)(nil).StartContainer), ctx, name, image, bindings)
-}
-
-// StopContainer mocks base method
-func (m *MockContainerRuntime) StopContainer(ctx context.Context, name string) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "StopContainer", ctx, name)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// StopContainer indicates an expected call of StopContainer
-func (mr *MockContainerRuntimeMockRecorder) StopContainer(ctx, name interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StopContainer", reflect.TypeOf((*MockContainerRuntime)(nil).StopContainer), ctx, name)
-}
-
-// RemoveContainer mocks base method
-func (m *MockContainerRuntime) RemoveContainer(ctx context.Context, name string) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "RemoveContainer", ctx, name)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// RemoveContainer indicates an expected call of RemoveContainer
-func (mr *MockContainerRuntimeMockRecorder) RemoveContainer(ctx, name interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RemoveContainer", reflect.TypeOf((*MockContainerRuntime)(nil).RemoveContainer), ctx, name)
-}
-
-// InspectContainer mocks base method
-func (m *MockContainerRuntime) InspectContainer(ctx context.Context, name string, container interface{}) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "InspectContainer", ctx, name, container)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// InspectContainer indicates an expected call of InspectContainer
-func (mr *MockContainerRuntimeMockRecorder) InspectContainer(ctx, name, container interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "InspectContainer", reflect.TypeOf((*MockContainerRuntime)(nil).InspectContainer), ctx, name, container)
-}
-
-// ListContainer mocks base method
-func (m *MockContainerRuntime) ListContainer(ctx context.Context, filter string) ([]types.Service, error) {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "ListContainer", ctx, filter)
-	ret0, _ := ret[0].([]types.Service)
-	ret1, _ := ret[1].(error)
-	return ret0, ret1
-}
-
-// ListContainer indicates an expected call of ListContainer
-func (mr *MockContainerRuntimeMockRecorder) ListContainer(ctx, filter interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ListContainer", reflect.TypeOf((*MockContainerRuntime)(nil).ListContainer), ctx, filter)
-}
-
-// Version mocks base method
-func (m *MockContainerRuntime) Version(ctx context.Context) (string, error) {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "Version", ctx)
-	ret0, _ := ret[0].(string)
-	ret1, _ := ret[1].(error)
-	return ret0, ret1
-}
-
-// Version indicates an expected call of Version
-func (mr *MockContainerRuntimeMockRecorder) Version(ctx interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Version", reflect.TypeOf((*MockContainerRuntime)(nil).Version), ctx)
-}
--- a/container_runtimes/runtimes.go
+++ b/container_runtimes/runtimes.go
@@ -14,7 +14,6 @@ type ContainerRuntime interface {
 	TagImage(ctx context.Context, name string, tag string) error
 	StartContainer(ctx context.Context, name string, image string, bindings []types.PortBinding) error
 	StopContainer(ctx context.Context, name string) error
-	RemoveContainer(ctx context.Context, name string) error
 	InspectContainer(ctx context.Context, name string, container interface{}) error
 	ListContainer(ctx context.Context, filter string) ([]types.Service, error)
 	Version(ctx context.Context) (string, error)
--- a/context/context.go
+++ b/context/context.go
@@ -52,7 +52,6 @@ func (ctx *Context) GetCliContext() *cli.Context {

 // Set a value with name
 func (ctx *Context) Set(name string, value interface{}) {
-	// nolint
 	newCtx := context.WithValue(ctx.Context, name, value)
 	ctx.Context = newCtx
 }
--- a/docs/ubuntu.md
+++ b/docs/ubuntu.md
@@ -36,26 +36,11 @@ $ curl 127.0.0.1:2000

 ##  Deploy a function onto remote host

-* make sure you can ssh login to target host with root
-
-Update `/etc/ssh/sshd_config` to allow login with root.
-
-```
-PermitRootLogin yes
-```
-
-Then restart sshd with,
-
-```shell
-$ sudo service sshd restart
-```
-
+* make sure your instance can be ssh login
 * make sure your instance accept port 8866

-[FYI](https://lightsail.aws.amazon.com/ls/docs/en_us/articles/understanding-firewall-and-port-mappings-in-amazon-lightsail)
-
 then you can deploy function to remote host

 ```shell
-fx up --host root@<your host> test/functions/func.js 
+DOCKER_REMOTE_HOST_ADDR=<your host> DOCKER_REMOTE_HOST_USER=<your user> DOCKER_REMOTE_HOST_PASSWORD=<your password> fx up -p 2000 test/functions/func.js
 ```
--- a/driver/docker/docker_test.go
+++ b/driver/docker/docker_test.go
@@ -1,95 +0,0 @@
-package docker
-
-import (
-	"context"
-	"errors"
-	"testing"
-
-	"github.com/golang/mock/gomock"
-	dockerMock "github.com/metrue/fx/container_runtimes/mocks"
-	"github.com/metrue/fx/types"
-)
-
-func TestDriverPing(t *testing.T) {
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	dockerClient := dockerMock.NewMockContainerRuntime(ctrl)
-	n := New(Options{
-		DockerClient: dockerClient,
-	})
-	ctx := context.Background()
-	dockerClient.EXPECT().Version(ctx).Return("", nil)
-	if err := n.Ping(ctx); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestDriverDeploy(t *testing.T) {
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	dockerClient := dockerMock.NewMockContainerRuntime(ctrl)
-	n := New(Options{
-		DockerClient: dockerClient,
-	})
-	ctx := context.Background()
-	fn := "fn"
-	name := "name"
-	image := "image"
-	ports := []types.PortBinding{}
-	dockerClient.EXPECT().StartContainer(ctx, name, image, ports).Return(nil)
-	if err := n.Deploy(ctx, fn, name, image, ports); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestDriverDestroy(t *testing.T) {
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	dockerClient := dockerMock.NewMockContainerRuntime(ctrl)
-	n := New(Options{
-		DockerClient: dockerClient,
-	})
-	ctx := context.Background()
-	name := "name"
-	dockerClient.EXPECT().StopContainer(ctx, name).Return(nil)
-	dockerClient.EXPECT().RemoveContainer(ctx, name).Return(nil)
-	if err := n.Destroy(ctx, name); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestDriverGetStatus(t *testing.T) {
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	dockerClient := dockerMock.NewMockContainerRuntime(ctrl)
-	n := New(Options{
-		DockerClient: dockerClient,
-	})
-	ctx := context.Background()
-	name := "name"
-	err := errors.New("no such container")
-	dockerClient.EXPECT().InspectContainer(ctx, name, gomock.Any()).Return(err)
-	if _, err := n.GetStatus(ctx, name); err == nil {
-		t.Fatalf("should get error")
-	}
-}
-
-func TestList(t *testing.T) {
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	dockerClient := dockerMock.NewMockContainerRuntime(ctrl)
-	n := New(Options{
-		DockerClient: dockerClient,
-	})
-	ctx := context.Background()
-	name := "name"
-	dockerClient.EXPECT().ListContainer(ctx, name).Return(nil, nil)
-	if _, err := n.List(ctx, name); err != nil {
-		t.Fatal(err)
-	}
-}
--- a/driver/mocks/driver.go
+++ b/driver/mocks/driver.go
@@ -1,135 +0,0 @@
-// Code generated by MockGen. DO NOT EDIT.
-// Source: driver.go
-
-// Package mock_driver is a generated GoMock package.
-package mock_driver
-
-import (
-	context "context"
-	gomock "github.com/golang/mock/gomock"
-	types "github.com/metrue/fx/types"
-	reflect "reflect"
-)
-
-// MockDriver is a mock of Driver interface
-type MockDriver struct {
-	ctrl     *gomock.Controller
-	recorder *MockDriverMockRecorder
-}
-
-// MockDriverMockRecorder is the mock recorder for MockDriver
-type MockDriverMockRecorder struct {
-	mock *MockDriver
-}
-
-// NewMockDriver creates a new mock instance
-func NewMockDriver(ctrl *gomock.Controller) *MockDriver {
-	mock := &MockDriver{ctrl: ctrl}
-	mock.recorder = &MockDriverMockRecorder{mock}
-	return mock
-}
-
-// EXPECT returns an object that allows the caller to indicate expected use
-func (m *MockDriver) EXPECT() *MockDriverMockRecorder {
-	return m.recorder
-}
-
-// Deploy mocks base method
-func (m *MockDriver) Deploy(ctx context.Context, fn, name, image string, bindings []types.PortBinding) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "Deploy", ctx, fn, name, image, bindings)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// Deploy indicates an expected call of Deploy
-func (mr *MockDriverMockRecorder) Deploy(ctx, fn, name, image, bindings interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Deploy", reflect.TypeOf((*MockDriver)(nil).Deploy), ctx, fn, name, image, bindings)
-}
-
-// Provision mocks base method
-func (m *MockDriver) Provision(ctx context.Context) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "Provision", ctx)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// Provision indicates an expected call of Provision
-func (mr *MockDriverMockRecorder) Provision(ctx interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Provision", reflect.TypeOf((*MockDriver)(nil).Provision), ctx)
-}
-
-// Destroy mocks base method
-func (m *MockDriver) Destroy(ctx context.Context, name string) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "Destroy", ctx, name)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// Destroy indicates an expected call of Destroy
-func (mr *MockDriverMockRecorder) Destroy(ctx, name interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Destroy", reflect.TypeOf((*MockDriver)(nil).Destroy), ctx, name)
-}
-
-// Update mocks base method
-func (m *MockDriver) Update(ctx context.Context, name string) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "Update", ctx, name)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// Update indicates an expected call of Update
-func (mr *MockDriverMockRecorder) Update(ctx, name interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Update", reflect.TypeOf((*MockDriver)(nil).Update), ctx, name)
-}
-
-// GetStatus mocks base method
-func (m *MockDriver) GetStatus(ctx context.Context, name string) (types.Service, error) {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "GetStatus", ctx, name)
-	ret0, _ := ret[0].(types.Service)
-	ret1, _ := ret[1].(error)
-	return ret0, ret1
-}
-
-// GetStatus indicates an expected call of GetStatus
-func (mr *MockDriverMockRecorder) GetStatus(ctx, name interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetStatus", reflect.TypeOf((*MockDriver)(nil).GetStatus), ctx, name)
-}
-
-// List mocks base method
-func (m *MockDriver) List(ctx context.Context, name string) ([]types.Service, error) {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "List", ctx, name)
-	ret0, _ := ret[0].([]types.Service)
-	ret1, _ := ret[1].(error)
-	return ret0, ret1
-}
-
-// List indicates an expected call of List
-func (mr *MockDriverMockRecorder) List(ctx, name interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "List", reflect.TypeOf((*MockDriver)(nil).List), ctx, name)
-}
-
-// Ping mocks base method
-func (m *MockDriver) Ping(ctx context.Context) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "Ping", ctx)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// Ping indicates an expected call of Ping
-func (mr *MockDriverMockRecorder) Ping(ctx interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Ping", reflect.TypeOf((*MockDriver)(nil).Ping), ctx)
-}
--- a/examples/functions/Python/README.md
+++ b/examples/functions/Python/README.md
@@ -3,7 +3,7 @@
 Write a function like,

 ```python
-def fx(request):
+def fx(requenst):
    return "hello world"
 ```

--- a/examples/functions/Python/func.py
+++ b/examples/functions/Python/func.py
@@ -1,2 +1,2 @@
-def fx(request):
+def fx(requenst):
    return "hello world"
--- a/fx.go
+++ b/fx.go
@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"net/http"
 	"os"
-	"os/user"
 	"regexp"

 	"github.com/apex/log"
@@ -14,12 +13,11 @@ import (
 	"github.com/metrue/fx/context"
 	"github.com/metrue/fx/handlers"
 	"github.com/metrue/fx/middlewares"
-	"github.com/mitchellh/go-homedir"
 	"github.com/urfave/cli"
 	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
 )

-const version = "0.9.45"
+const version = "0.8.87"

 func init() {
 	go checkForUpdate()
@@ -77,21 +75,63 @@ func main() {
 			fmt.Println(aurora.Red("*****************"))
 			fmt.Println(r)
 			fmt.Println(aurora.Red("*****************"))
-			os.Exit(1)
 		}
 	}()
-	user, err := user.Current()
-	if err != nil {
-		panic(err)
-	}
-	defaultHost := user.Username + "@localhost"
-
-	defaultSSHKeyFile, err := homedir.Expand("~/.ssh/id_rsa")
-	if err != nil {
-		panic(err)
-	}

 	app.Commands = []cli.Command{
+		{
+			Name:  "infra",
+			Usage: "manage infrastructure",
+			Subcommands: []cli.Command{
+				{
+					Name:  "create",
+					Usage: "create a infra for fx service",
+					Flags: []cli.Flag{
+						cli.StringFlag{
+							Name:  "type, t",
+							Usage: "infracture type, 'docker', 'k8s' and 'k3s' support",
+						},
+						cli.StringFlag{
+							Name:  "name, n",
+							Usage: "name to identify the infrastructure",
+						},
+						cli.StringFlag{
+							Name:  "host",
+							Usage: "user and ip of your host, eg. 'root@182.12.1.12'",
+						},
+						cli.StringFlag{
+							Name:  "master",
+							Usage: "serve as master node in K3S cluster, eg. 'root@182.12.1.12'",
+						},
+						cli.StringFlag{
+							Name:  "agents",
+							Usage: "serve as agent node in K3S cluster, eg. 'root@187.1. 2. 3,root@123.3.2.1'",
+						},
+					},
+
+					Action: handle(
+						middlewares.LoadConfig,
+						handlers.Setup,
+					),
+				},
+				{
+					Name:  "list",
+					Usage: "list all infrastructures",
+					Action: handle(
+						middlewares.LoadConfig,
+						handlers.ListInfra,
+					),
+				},
+				{
+					Name:  "use",
+					Usage: "set current context to target cloud with given name",
+					Action: handle(
+						middlewares.LoadConfig,
+						handlers.UseInfra,
+					),
+				},
+			},
+		},
 		{
 			Name:      "up",
 			Usage:     "deploy a function",
@@ -106,25 +146,6 @@ func main() {
 					Name:  "port, p",
 					Usage: "port number",
 				},
-				cli.StringFlag{
-					Name:  "host, H",
-					Usage: "target host, <user>@<host>",
-					Value: defaultHost,
-				},
-				cli.StringFlag{
-					Name:  "ssh_port, P",
-					Usage: "SSH port for target host",
-					Value: "22",
-				},
-				cli.StringFlag{
-					Name:  "ssh_key, K",
-					Usage: "SSH key file for login target host",
-					Value: defaultSSHKeyFile,
-				},
-				cli.StringFlag{
-					Name:  "kubeconf, C",
-					Usage: "kubeconf of kubernetes cluster",
-				},
 				cli.BoolFlag{
 					Name:  "healthcheck, hc",
 					Usage: "do a health check after service up",
@@ -135,11 +156,10 @@ func main() {
 				},
 			},
 			Action: handle(
+				middlewares.LoadConfig,
+				middlewares.Provision,
 				middlewares.Parse("up"),
-				middlewares.Language(),
 				middlewares.Binding,
-				middlewares.SSH,
-				middlewares.Driver,
 				middlewares.Build,
 				handlers.Up,
 			),
@@ -148,31 +168,10 @@ func main() {
 			Name:      "down",
 			Usage:     "destroy a service",
 			ArgsUsage: "[service 1, service 2, ....]",
-			Flags: []cli.Flag{
-				cli.StringFlag{
-					Name:  "ssh_port, P",
-					Usage: "SSH port for target host",
-					Value: "22",
-				},
-				cli.StringFlag{
-					Name:  "ssh_key, K",
-					Usage: "SSH key file for login target host",
-					Value: defaultSSHKeyFile,
-				},
-				cli.StringFlag{
-					Name:  "host, H",
-					Usage: "target host, <user>@<host>",
-					Value: defaultHost,
-				},
-				cli.StringFlag{
-					Name:  "kubeconf, C",
-					Usage: "kubeconf of kubernetes cluster",
-				},
-			},
 			Action: handle(
 				middlewares.Parse("down"),
-				middlewares.SSH,
-				middlewares.Driver,
+				middlewares.LoadConfig,
+				middlewares.Provision,
 				handlers.Down,
 			),
 		},
@@ -180,39 +179,24 @@ func main() {
 			Name:    "list",
 			Aliases: []string{"ls"},
 			Usage:   "list deployed services",
-			Flags: []cli.Flag{
-				cli.StringFlag{
-					Name:  "format, f",
-					Value: "table",
-					Usage: "output format, 'table' and 'JSON' supported",
-				},
-				cli.StringFlag{
-					Name:  "ssh_port, P",
-					Usage: "SSH port for target host",
-					Value: "22",
-				},
-				cli.StringFlag{
-					Name:  "ssh_key, K",
-					Usage: "SSH key file for login target host",
-					Value: defaultSSHKeyFile,
-				},
-				cli.StringFlag{
-					Name:  "host, H",
-					Usage: "target host, <user>@<host>",
-					Value: defaultHost,
-				},
-				cli.StringFlag{
-					Name:  "kubeconf, C",
-					Usage: "kubeconf of kubernetes cluster",
-				},
-			},
 			Action: handle(
 				middlewares.Parse("list"),
-				middlewares.SSH,
-				middlewares.Driver,
+				middlewares.LoadConfig,
+				middlewares.Provision,
 				handlers.List,
 			),
 		},
+		{
+			Name:  "call",
+			Usage: "run a function instantly",
+			Flags: []cli.Flag{
+				cli.StringFlag{
+					Name:  "host, H",
+					Usage: "fx server host, default is localhost",
+				},
+			},
+			Action: handle(handlers.Call),
+		},
 		{
 			Name:  "image",
 			Usage: "manage image of service",
@@ -222,36 +206,14 @@ func main() {
 					Usage: "build a image",
 					Flags: []cli.Flag{
 						cli.StringFlag{
-							Name:  "ssh_port, P",
-							Usage: "SSH port for target host",
-							Value: "22",
-						},
-						cli.StringFlag{
-							Name:  "ssh_key, K",
-							Usage: "SSH key file for login target host",
-							Value: defaultSSHKeyFile,
-						},
-						cli.StringFlag{
-							Name:  "host, H",
-							Usage: "target host, <user>@<host>",
-							Value: defaultHost,
-						},
-						cli.StringFlag{
-							Name:  "kubeconf, C",
-							Usage: "kubeconf of kubernetes cluster",
-						},
-						cli.StringFlag{
-							Name:  "name, n",
-							Usage: "image name",
-							Value: uuid.New().String(),
+							Name:  "tag, t",
+							Usage: "image tag",
 						},
 					},
 					Action: handle(
+						middlewares.LoadConfig,
+						middlewares.Provision,
 						middlewares.Parse("image_build"),
-						middlewares.Language(),
-						middlewares.SSH,
-						middlewares.Driver,
-						middlewares.Build,
 						handlers.BuildImage,
 					),
 				},
@@ -265,13 +227,19 @@ func main() {
 						},
 					},
 					Action: handle(
+						middlewares.LoadConfig,
+						middlewares.Provision,
 						middlewares.Parse("image_export"),
-						middlewares.Language(),
 						handlers.ExportImage,
 					),
 				},
 			},
 		},
+		{
+			Name:   "doctor",
+			Usage:  "health check for fx",
+			Action: handle(handlers.Doctor),
+		},
 	}

 	if err := app.Run(os.Args); err != nil {
--- a/go.mod
+++ b/go.mod
@@ -5,17 +5,17 @@ go 1.12
 require (
 	github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 // indirect
 	github.com/Microsoft/go-winio v0.4.14 // indirect
-	github.com/apex/log v1.6.0
-	github.com/cheggaaa/pb/v3 v3.0.5
+	github.com/apex/log v1.1.1
+	github.com/briandowns/spinner v1.7.0
 	github.com/docker/distribution v2.7.1+incompatible // indirect
 	github.com/docker/docker v0.0.0-20190313072916-46036c230805
 	github.com/docker/go-connections v0.4.0
 	github.com/docker/go-units v0.3.3 // indirect
 	github.com/dsnet/compress v0.0.1 // indirect
-	github.com/gin-gonic/gin v1.6.3
-	github.com/gobuffalo/packd v1.0.0
-	github.com/gobuffalo/packr/v2 v2.8.0
-	github.com/golang/mock v1.4.4
+	github.com/gin-gonic/gin v1.4.0
+	github.com/gobuffalo/envy v1.8.1 // indirect
+	github.com/gobuffalo/packr v1.30.1
+	github.com/golang/mock v1.3.1
 	github.com/golang/snappy v0.0.1 // indirect
 	github.com/google/go-querystring v1.0.0
 	github.com/google/uuid v1.1.1
@@ -23,7 +23,7 @@ require (
 	github.com/gorilla/mux v1.7.3 // indirect
 	github.com/imdario/mergo v0.3.7 // indirect
 	github.com/logrusorgru/aurora v0.0.0-20191017060258-dc85c304c434
-	github.com/metrue/go-ssh-client v0.0.0-20200317072149-19d54050aefd
+	github.com/metrue/go-ssh-client v0.0.0-20191219103445-1f07b67e2b29
 	github.com/mholt/archiver v3.1.1+incompatible
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/morikuni/aec v1.0.0 // indirect
@@ -31,16 +31,21 @@ require (
 	github.com/olekukonko/tablewriter v0.0.4
 	github.com/opencontainers/go-digest v1.0.0-rc1 // indirect
 	github.com/opencontainers/image-spec v1.0.1 // indirect
-	github.com/otiai10/copy v1.2.0
+	github.com/otiai10/copy v1.0.2
 	github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2
 	github.com/pierrec/lz4 v0.0.0-20190222153722-062282ea0dcf // indirect
-	github.com/pkg/errors v0.9.1
+	github.com/pkg/errors v0.8.1
+	github.com/rogpeppe/go-internal v1.5.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/stretchr/testify v1.6.1
-	github.com/urfave/cli v1.22.4
+	github.com/spf13/viper v1.6.1
+	github.com/stretchr/testify v1.4.0
+	github.com/ugorji/go v1.1.7 // indirect
+	github.com/urfave/cli v1.22.2
 	github.com/xi2/xz v0.0.0-20171230120015-48954b6210f8 // indirect
 	golang.org/x/crypto v0.0.0-20191219195013-becbf705a915 // indirect
+	golang.org/x/sys v0.0.0-20191223224216-5a3cf8467b4e // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.2.7 // indirect
 	gotest.tools v2.2.0+incompatible // indirect
 	k8s.io/api v0.0.0-20190925180651-d58b53da08f5
 	k8s.io/apimachinery v0.0.0-20190925235427-62598f38f24e
--- a/go.sum
+++ b/go.sum
@@ -19,18 +19,10 @@ github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb0
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
-github.com/VividCortex/ewma v1.1.1 h1:MnEK4VOv6n0RSY4vtRe3h11qjxL3+t0B8yOL8iMXdcM=
-github.com/VividCortex/ewma v1.1.1/go.mod h1:2Tkkvm3sRDVXaiyucHiACn4cqf7DpdyLvmxzcbUokwA=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/apex/log v1.1.4 h1:3Zk+boorIQAAGBrHn0JUtAau4ihMamT4WdnfdnXM1zQ=
-github.com/apex/log v1.1.4/go.mod h1:AlpoD9aScyQfJDVHmLMEcx4oU6LqzkWp4Mg9GdAcEvQ=
-github.com/apex/log v1.3.0 h1:1fyfbPvUwD10nMoh3hY6MXzvZShJQn9/ck7ATgAt5pA=
-github.com/apex/log v1.3.0/go.mod h1:jd8Vpsr46WAe3EZSQ/IUMs2qQD/GOycT5rPWCO1yGcs=
-github.com/apex/log v1.6.0 h1:Y50wF1PBIIexIgTm0/7G6gcLitkO5jHK5Mb6wcMY0UI=
-github.com/apex/log v1.6.0/go.mod h1:x7s+P9VtvFBXge9Vbn+8TrqKmuzmD35TTkeBHul8UtY=
-github.com/apex/logs v0.0.4/go.mod h1:XzxuLZ5myVHDy9SAmYpamKKRNApGj54PfYLcFrXqDwo=
-github.com/apex/logs v1.0.0/go.mod h1:XzxuLZ5myVHDy9SAmYpamKKRNApGj54PfYLcFrXqDwo=
+github.com/apex/log v1.1.1 h1:BwhRZ0qbjYtTob0I+2M+smavV0kOC8XgcnGZcyL9liA=
+github.com/apex/log v1.1.1/go.mod h1:Ls949n1HFtXfbDcjiTTFQqkVUrte0puoIBfO3SVgwOA=
 github.com/aphistic/golf v0.0.0-20180712155816-02c07f170c5a/go.mod h1:3NqKYiepwy8kCu4PNA+aP7WUV72eXWJeP9/r3/K9aLE=
 github.com/aphistic/sweet v0.2.0/go.mod h1:fWDlIh/isSE9n6EPsRmC0det+whmX6dJid3stzu0Xys=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
@@ -38,21 +30,20 @@ github.com/aws/aws-sdk-go v1.20.6/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN
 github.com/aybabtme/rgbterm v0.0.0-20170906152045-cc83f3b3ce59/go.mod h1:q/89r3U2H7sSsE2t6Kca0lfwTK8JdoNGS/yzM/4iH5I=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/briandowns/spinner v1.7.0 h1:aan1hBBOoscry2TXAkgtxkJiq7Se0+9pt+TUWaPrB4g=
+github.com/briandowns/spinner v1.7.0/go.mod h1://Zf9tMcxfRUA36V23M6YGEAv+kECGfvpnLTnb8n4XQ=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-github.com/cheggaaa/pb/v3 v3.0.4 h1:QZEPYOj2ix6d5oEg63fbHmpolrnNiwjUsk+h74Yt4bM=
-github.com/cheggaaa/pb/v3 v3.0.4/go.mod h1:7rgWxLrAUcFMkvJuv09+DYi7mMUYi8nO9iOWcvGJPfw=
-github.com/cheggaaa/pb/v3 v3.0.5 h1:lmZOti7CraK9RSjzExsY53+WWfub9Qv13B5m4ptEoPE=
-github.com/cheggaaa/pb/v3 v3.0.5/go.mod h1:X1L61/+36nz9bjIsrDU52qHKOQukUQe2Ge+YvGuquCw=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
+github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
+github.com/cpuguy83/go-md2man v1.0.10 h1:BSKMNlYxDvnunlTymqtgONjNnaRV1sTpcovwwjF22jk=
+github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
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@@ -82,10 +73,10 @@ github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV
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@@ -94,21 +85,19 @@ github.com/go-openapi/jsonpointer v0.0.0-20160704185906-46af16f9f7b1/go.mod h1:+
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@@ -153,6 +136,8 @@ github.com/googleapis/gnostic v0.0.0-20170729233727-0c5108395e2d/go.mod h1:sJBsC
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@@ -171,17 +156,20 @@ github.com/imdario/mergo v0.3.7/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJ
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@@ -193,37 +181,29 @@ github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxv
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@@ -257,18 +237,12 @@ github.com/opencontainers/go-digest v1.0.0-rc1 h1:WzifXhOVOEOuFYOJAW6aQqW0TooG2i
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@@ -279,8 +253,6 @@ github.com/pierrec/lz4 v0.0.0-20190222153722-062282ea0dcf/go.mod h1:3/3N9NVKO0je
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@@ -296,8 +268,14 @@ github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7z
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@@ -307,9 +285,12 @@ github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPx
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 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
@@ -368,14 +348,14 @@ go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
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 golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
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 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4 h1:HuIa8hRrWRSrqYzx1qI49NNxhdi2PrY7gxVSq1JjLDc=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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-golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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@@ -383,7 +363,6 @@ golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTk
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20170114055629-f2499483f923/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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@@ -394,13 +373,12 @@ golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73r
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+golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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-golang.org/x/net v0.0.0-20200226121028-0de0cce0169b h1:0mm1VjtFUOIlE1SbDlwjYaDxZVDP2S5ou6y0gSgXHu8=
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 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be h1:vEDujvNQGv4jgYKudGeI/+DAX4Jffq6hpD55MmoEvKs=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
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@@ -412,27 +390,24 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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@@ -448,12 +423,10 @@ golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGm
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@@ -470,24 +443,28 @@ gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLks
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+gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
+gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
@@ -509,10 +486,6 @@ k8s.io/kube-openapi v0.0.0-20190816220812-743ec37842bf/go.mod h1:1TqjTSzOxsLGIKf
 k8s.io/utils v0.0.0-20190920012459-5008bf6f8cd6/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
 k8s.io/utils v0.0.0-20190923111123-69764acb6e8e h1:BXSmdH6S3YGLlhC89DZp+sNdYSmwNeDU6Xu5ZpzGOlM=
 k8s.io/utils v0.0.0-20190923111123-69764acb6e8e/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
-rsc.io/quote/v3 v3.1.0 h1:9JKUTTIUgS6kzR9mK1YuGKv6Nl+DijDNIc0ghT58FaY=
-rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
-rsc.io/sampler v1.3.0 h1:7uVkIFmeBqHfdjD+gZwtXXI+RODJ2Wc4O7MPEh/QiW4=
-rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
 sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
--- a/handlers/call.go
+++ b/handlers/call.go
@@ -0,0 +1,11 @@
+package handlers
+
+import (
+	"github.com/metrue/fx/context"
+)
+
+// Call command handle
+func Call(ctx context.Contexter) error {
+	// TODO not supported
+	return nil
+}
--- a/handlers/doctor.go
+++ b/handlers/doctor.go
@@ -0,0 +1,26 @@
+package handlers
+
+import (
+	"os"
+
+	"github.com/apex/log"
+	"github.com/metrue/fx/constants"
+	"github.com/metrue/fx/context"
+	"github.com/metrue/fx/doctor"
+)
+
+// Doctor command handle
+func Doctor(ctx context.Contexter) error {
+	host := os.Getenv("DOCKER_REMOTE_HOST_ADDR")
+	user := os.Getenv("DOCKER_REMOTE_HOST_USER")
+	password := os.Getenv("DOCKER_REMOTE_HOST_PASSWORD")
+	if host == "" {
+		host = "localhost"
+	}
+	if err := doctor.New(host, user, password).Start(); err != nil {
+		log.Warnf("machine %s is in dirty state: %v", host, err)
+	} else {
+		log.Infof("machine %s is in healthy state: %s", host, constants.CheckedSymbol)
+	}
+	return nil
+}
--- a/handlers/down.go
+++ b/handlers/down.go
@@ -2,23 +2,17 @@ package handlers

 import (
 	"github.com/metrue/fx/context"
-	"github.com/metrue/fx/driver"
+	"github.com/metrue/fx/infra"
 )

 // Down command handle
 func Down(ctx context.Contexter) (err error) {
 	services := ctx.Get("services").([]string)
-	for _, targetdriver := range []string{"docker_driver", "k8s_driver"} {
-		driver, ok := ctx.Get(targetdriver).(driver.Driver)
-		if !ok {
-			continue
-		}
-		for _, svc := range services {
-			if err := driver.Destroy(ctx.GetContext(), svc); err != nil {
-				return err
-			}
+	runner := ctx.Get("deployer").(infra.Deployer)
+	for _, svc := range services {
+		if err := runner.Destroy(ctx.GetContext(), svc); err != nil {
+			return err
 		}
 	}
-
 	return nil
 }
--- a/handlers/down_test.go
+++ b/handlers/down_test.go
@@ -6,7 +6,7 @@ import (

 	"github.com/golang/mock/gomock"
 	mockCtx "github.com/metrue/fx/context/mocks"
-	mockDeployer "github.com/metrue/fx/driver/mocks"
+	mockDeployer "github.com/metrue/fx/infra/mocks"
 )

 func TestDown(t *testing.T) {
@@ -14,14 +14,13 @@ func TestDown(t *testing.T) {
 	defer ctrl.Finish()

 	ctx := mockCtx.NewMockContexter(ctrl)
-	driver := mockDeployer.NewMockDriver(ctrl)
+	deployer := mockDeployer.NewMockDeployer(ctrl)

 	services := []string{"sample-name"}
 	ctx.EXPECT().Get("services").Return(services)
-	ctx.EXPECT().Get("docker_driver").Return(driver)
-	ctx.EXPECT().Get("k8s_driver").Return(driver)
-	ctx.EXPECT().GetContext().Return(context.Background()).Times(2)
-	driver.EXPECT().Destroy(gomock.Any(), services[0]).Return(nil).Times(2)
+	ctx.EXPECT().Get("deployer").Return(deployer)
+	ctx.EXPECT().GetContext().Return(context.Background())
+	deployer.EXPECT().Destroy(gomock.Any(), services[0]).Return(nil)
 	if err := Down(ctx); err != nil {
 		t.Fatal(err)
 	}
--- a/handlers/image.go
+++ b/handlers/image.go
@@ -1,34 +1,73 @@
 package handlers

 import (
+	"fmt"
+	"os"
+	"time"
+
 	"github.com/apex/log"
-	"github.com/metrue/fx/bundle"
 	"github.com/metrue/fx/constants"
+	containerruntimes "github.com/metrue/fx/container_runtimes"
 	"github.com/metrue/fx/context"
-	"github.com/metrue/fx/hook"
+	"github.com/metrue/fx/packer"
+	"github.com/metrue/fx/pkg/spinner"
+	"github.com/metrue/fx/utils"
+	"github.com/otiai10/copy"
 )

 // BuildImage build image
 func BuildImage(ctx context.Contexter) (err error) {
-	image := ctx.Get("image").(string)
-	log.Infof("image built: %s %v", image, constants.CheckedSymbol)
+	spinner.Start("building")
+	defer func() {
+		spinner.Stop("building", err)
+	}()
+	workdir := fmt.Sprintf("/tmp/fx-%d", time.Now().Unix())
+	defer os.RemoveAll(workdir)
+
+	sources := ctx.Get("sources").([]string)
+
+	if len(sources) == 0 {
+		return fmt.Errorf("source file/directory of function required")
+	}
+	if len(sources) == 1 &&
+		utils.IsDir(sources[0]) &&
+		utils.HasDockerfile(sources[0]) {
+		if err := copy.Copy(sources[0], workdir); err != nil {
+			return err
+		}
+	} else {
+		if err := packer.Pack(workdir, sources...); err != nil {
+			return err
+		}
+	}
+
+	docker := ctx.Get("docker").(containerruntimes.ContainerRuntime)
+	nameWithTag := ctx.Get("tag").(string) + ":latest"
+	if err := docker.BuildImage(ctx.GetContext(), workdir, nameWithTag); err != nil {
+		return err
+	}
+	log.Infof("image built: %s %v", nameWithTag, constants.CheckedSymbol)
 	return nil
 }

 // ExportImage export service's code into a directory
 func ExportImage(ctx context.Contexter) (err error) {
 	outputDir := ctx.Get("output").(string)
-	fn := ctx.Get("fn").(string)
-	deps := ctx.Get("deps").([]string)
+	sources := ctx.Get("sources").([]string)

-	language := ctx.Get("language").(string)
-
-	if err := bundle.Bundle(outputDir, language, fn, deps...); err != nil {
-		return err
+	if len(sources) == 0 {
+		return fmt.Errorf("source file/directory of function required")
 	}
-
-	if err := hook.RunBeforeBuildHook(outputDir); err != nil {
-		return err
+	if len(sources) == 1 &&
+		utils.IsDir(sources[0]) &&
+		utils.HasDockerfile(sources[0]) {
+		if err := copy.Copy(sources[0], outputDir); err != nil {
+			return err
+		}
+	} else {
+		if err := packer.Pack(outputDir, sources...); err != nil {
+			return err
+		}
 	}

 	log.Infof("exported to %v: %v", outputDir, constants.CheckedSymbol)
--- a/handlers/infra.go
+++ b/handlers/infra.go
@@ -0,0 +1,113 @@
+package handlers
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+
+	"github.com/metrue/fx/config"
+	"github.com/metrue/fx/context"
+	dockerInfra "github.com/metrue/fx/infra/docker"
+	k8sInfra "github.com/metrue/fx/infra/k8s"
+	"github.com/metrue/fx/pkg/spinner"
+)
+
+func setupK8S(configDir string, name, masterInfo string, agentsInfo string) ([]byte, error) {
+	info := strings.Split(masterInfo, "@")
+	if len(info) != 2 {
+		return nil, fmt.Errorf("incorrect master info, should be <user>@<ip> format")
+	}
+	master, err := k8sInfra.CreateNode(info[1], info[0], "k3s_master", "master")
+	if err != nil {
+		return nil, err
+	}
+	nodes := []k8sInfra.Noder{master}
+	if agentsInfo != "" {
+		agentsInfoList := strings.Split(agentsInfo, ",")
+		for idx, agent := range agentsInfoList {
+			info := strings.Split(agent, "@")
+			if len(info) != 2 {
+				return nil, fmt.Errorf("incorrect agent info, should be <user>@<ip> format")
+			}
+			node, err := k8sInfra.CreateNode(info[1], info[0], "k3s_agent", fmt.Sprintf("agent-%d", idx))
+			if err != nil {
+				return nil, err
+			}
+
+			nodes = append(nodes, node)
+		}
+	}
+	kubeconfigPath := filepath.Join(configDir, name+".kubeconfig")
+	cloud := k8sInfra.NewCloud(kubeconfigPath, nodes...)
+	if err := cloud.Provision(); err != nil {
+		return nil, err
+	}
+	return cloud.Dump()
+}
+
+func setupDocker(hostInfo string, name string) ([]byte, error) {
+	info := strings.Split(hostInfo, "@")
+	if len(info) != 2 {
+		return nil, fmt.Errorf("incorrect master info, should be <user>@<ip> format")
+	}
+	user := info[0]
+	host := info[1]
+
+	cloud, err := dockerInfra.Create(host, user, name)
+	if err != nil {
+		return nil, err
+	}
+	if err := cloud.Provision(); err != nil {
+		return nil, err
+	}
+	return cloud.Dump()
+}
+
+// Setup infra
+func Setup(ctx context.Contexter) (err error) {
+	const task = "setup infra"
+	spinner.Start(task)
+	defer func() {
+		spinner.Stop(task, err)
+	}()
+
+	cli := ctx.GetCliContext()
+	typ := cli.String("type")
+	name := cli.String("name")
+	if name == "" {
+		return fmt.Errorf("name required")
+	}
+	if typ == "docker" {
+		if cli.String("host") == "" {
+			return fmt.Errorf("host required, eg. 'root@123.1.2.12'")
+		}
+	} else if typ == "k8s" {
+		if cli.String("master") == "" {
+			return fmt.Errorf("master required, eg. 'root@123.1.2.12'")
+		}
+	} else {
+		return fmt.Errorf("invalid type, 'docker' and 'k8s' support")
+	}
+
+	fxConfig := ctx.Get("config").(*config.Config)
+
+	switch strings.ToLower(typ) {
+	case "k8s":
+		dir, err := fxConfig.Dir()
+		if err != nil {
+			return err
+		}
+		kubeconf, err := setupK8S(dir, name, cli.String("master"), cli.String("agents"))
+		if err != nil {
+			return err
+		}
+		return fxConfig.AddCloud(name, kubeconf)
+	case "docker":
+		config, err := setupDocker(cli.String("host"), name)
+		if err != nil {
+			return err
+		}
+		return fxConfig.AddCloud(name, config)
+	}
+	return nil
+}
--- a/handlers/list.go
+++ b/handlers/list.go
@@ -2,27 +2,20 @@ package handlers

 import (
 	"github.com/metrue/fx/context"
-	"github.com/metrue/fx/driver"
-	"github.com/metrue/fx/pkg/renderrer"
+	"github.com/metrue/fx/infra"
+	"github.com/metrue/fx/pkg/render"
 )

 // List command handle
 func List(ctx context.Contexter) (err error) {
 	cli := ctx.GetCliContext()
-	format := ctx.Get("format").(string)
+	deployer := ctx.Get("deployer").(infra.Deployer)

-	for _, targetdriver := range []string{"docker_driver", "k8s_driver"} {
-		driver, ok := ctx.Get(targetdriver).(driver.Driver)
-		if !ok {
-			continue
-		}
-		services, err := driver.List(ctx.GetContext(), cli.Args().First())
-		if err != nil {
-			return err
-		}
-		if err := renderrer.Render(services, format); err != nil {
-			return err
-		}
+	services, err := deployer.List(ctx.GetContext(), cli.Args().First())
+	if err != nil {
+		return err
 	}
+
+	render.Table(services)
 	return nil
 }
--- a/handlers/list_infra.go
+++ b/handlers/list_infra.go
@@ -0,0 +1,19 @@
+package handlers
+
+import (
+	"fmt"
+
+	"github.com/metrue/fx/config"
+	"github.com/metrue/fx/context"
+)
+
+// ListInfra list infra
+func ListInfra(ctx context.Contexter) (err error) {
+	fxConfig := ctx.Get("config").(*config.Config)
+	conf, err := fxConfig.View()
+	if err != nil {
+		return err
+	}
+	fmt.Println(string(conf))
+	return nil
+}
--- a/handlers/up.go
+++ b/handlers/up.go
@@ -3,8 +3,8 @@ package handlers
 import (
 	"github.com/apex/log"
 	"github.com/metrue/fx/context"
-	"github.com/metrue/fx/driver"
-	"github.com/metrue/fx/pkg/renderrer"
+	"github.com/metrue/fx/infra"
+	"github.com/metrue/fx/pkg/render"
 	"github.com/metrue/fx/types"
 )

@@ -19,37 +19,29 @@ func Up(ctx context.Contexter) (err error) {
 		image = ""
 	}
 	name := ctx.Get("name").(string)
+	deployer := ctx.Get("deployer").(infra.Deployer)
 	bindings := ctx.Get("bindings").([]types.PortBinding)
 	force := ctx.Get("force").(bool)
-
-	for _, targetdriver := range []string{"docker_driver", "k8s_driver"} {
-		driver, ok := ctx.Get(targetdriver).(driver.Driver)
-		if !ok {
-			continue
-		}
-		if force && name != "" {
-			if err := driver.Destroy(ctx.GetContext(), name); err != nil {
-				log.Warnf("destroy service %s failed: %v", name, err)
-			}
-		}
-
-		if err := driver.Deploy(
-			ctx.GetContext(),
-			fn,
-			name,
-			image,
-			bindings,
-		); err != nil {
-			return err
-		}
-
-		service, err := driver.GetStatus(ctx.GetContext(), name)
-		if err != nil {
-			return err
-		}
-		if err := renderrer.Render([]types.Service{service}, "table"); err != nil {
-			return err
+	if force && name != "" {
+		if err := deployer.Destroy(ctx.GetContext(), name); err != nil {
+			log.Warnf("destroy service %s failed: %v", name, err)
 		}
 	}
+
+	if err := deployer.Deploy(
+		ctx.GetContext(),
+		fn,
+		name,
+		image,
+		bindings,
+	); err != nil {
+		return err
+	}
+
+	service, err := deployer.GetStatus(ctx.GetContext(), name)
+	if err != nil {
+		return err
+	}
+	render.Table([]types.Service{service})
 	return nil
 }
--- a/handlers/up_test.go
+++ b/handlers/up_test.go
@@ -6,7 +6,7 @@ import (

 	"github.com/golang/mock/gomock"
 	mockCtx "github.com/metrue/fx/context/mocks"
-	mockDeployer "github.com/metrue/fx/driver/mocks"
+	mockDeployer "github.com/metrue/fx/infra/mocks"
 	"github.com/metrue/fx/types"
 )

@@ -16,7 +16,7 @@ func TestUp(t *testing.T) {
 		defer ctrl.Finish()

 		ctx := mockCtx.NewMockContexter(ctrl)
-		driver := mockDeployer.NewMockDriver(ctrl)
+		deployer := mockDeployer.NewMockDeployer(ctrl)

 		bindings := []types.PortBinding{}
 		name := "sample-name"
@@ -24,19 +24,18 @@ func TestUp(t *testing.T) {
 		data := "sample-data"
 		ctx.EXPECT().Get("name").Return(name)
 		ctx.EXPECT().Get("image").Return(image)
-		ctx.EXPECT().Get("docker_driver").Return(driver)
-		ctx.EXPECT().Get("k8s_driver").Return(driver)
+		ctx.EXPECT().Get("deployer").Return(deployer)
 		ctx.EXPECT().Get("bindings").Return(bindings)
 		ctx.EXPECT().Get("data").Return(data)
 		ctx.EXPECT().Get("force").Return(false)
-		ctx.EXPECT().GetContext().Return(context.Background()).Times(4)
-		driver.EXPECT().Deploy(gomock.Any(), data, name, image, bindings).Return(nil).Times(2)
-		driver.EXPECT().GetStatus(gomock.Any(), name).Return(types.Service{
+		ctx.EXPECT().GetContext().Return(context.Background()).Times(2)
+		deployer.EXPECT().Deploy(gomock.Any(), data, name, image, bindings).Return(nil)
+		deployer.EXPECT().GetStatus(gomock.Any(), name).Return(types.Service{
 			ID:   "id-1",
 			Name: name,
 			Host: "127.0.0.1",
 			Port: 2100,
-		}, nil).Times(2)
+		}, nil)
 		if err := Up(ctx); err != nil {
 			t.Fatal(err)
 		}
@@ -47,7 +46,7 @@ func TestUp(t *testing.T) {
 		defer ctrl.Finish()

 		ctx := mockCtx.NewMockContexter(ctrl)
-		driver := mockDeployer.NewMockDriver(ctrl)
+		deployer := mockDeployer.NewMockDeployer(ctrl)

 		bindings := []types.PortBinding{}
 		name := "sample-name"
@@ -55,20 +54,19 @@ func TestUp(t *testing.T) {
 		data := "sample-data"
 		ctx.EXPECT().Get("name").Return(name)
 		ctx.EXPECT().Get("image").Return(image)
-		ctx.EXPECT().Get("docker_driver").Return(driver)
-		ctx.EXPECT().Get("k8s_driver").Return(driver)
+		ctx.EXPECT().Get("deployer").Return(deployer)
 		ctx.EXPECT().Get("bindings").Return(bindings)
 		ctx.EXPECT().Get("data").Return(data)
 		ctx.EXPECT().Get("force").Return(true)
-		ctx.EXPECT().GetContext().Return(context.Background()).Times(6)
-		driver.EXPECT().Deploy(gomock.Any(), data, name, image, bindings).Return(nil).Times(2)
-		driver.EXPECT().Destroy(gomock.Any(), name).Return(nil).Times(2)
-		driver.EXPECT().GetStatus(gomock.Any(), name).Return(types.Service{
+		ctx.EXPECT().GetContext().Return(context.Background()).Times(3)
+		deployer.EXPECT().Deploy(gomock.Any(), data, name, image, bindings).Return(nil)
+		deployer.EXPECT().Destroy(gomock.Any(), name).Return(nil)
+		deployer.EXPECT().GetStatus(gomock.Any(), name).Return(types.Service{
 			ID:   "id-1",
 			Name: name,
 			Host: "127.0.0.1",
 			Port: 2100,
-		}, nil).Times(2)
+		}, nil)
 		if err := Up(ctx); err != nil {
 			t.Fatal(err)
 		}
--- a/handlers/use_infra.go
+++ b/handlers/use_infra.go
@@ -0,0 +1,13 @@
+package handlers
+
+import (
+	"github.com/metrue/fx/config"
+	"github.com/metrue/fx/context"
+)
+
+// UseInfra use infra
+func UseInfra(ctx context.Contexter) error {
+	fxConfig := ctx.Get("config").(*config.Config)
+	cli := ctx.GetCliContext()
+	return fxConfig.UseCloud(cli.Args().First())
+}
--- a/hook/.hooks/before_build
+++ b/hook/.hooks/before_build
@@ -1 +0,0 @@
-npm install
--- a/hook/fixture/package.json
+++ b/hook/fixture/package.json
@@ -1,15 +0,0 @@
-{
-  "name": "fixture",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "keywords": [],
-  "author": "",
-  "license": "ISC",
-  "dependencies": {
-    "leftpad": "0.0.1"
-  }
-}
--- a/hook/hook.go
+++ b/hook/hook.go
@@ -1,73 +0,0 @@
-package hook
-
-import (
-	"io/ioutil"
-	"os"
-	"os/exec"
-	"path/filepath"
-
-	"github.com/metrue/fx/utils"
-)
-
-// Hooker defines hook interface
-type Hooker interface {
-	Run() error
-}
-
-// Hook to run
-type Hook struct {
-	name   string
-	script string
-}
-
-// New a hook
-func New(name string, script string, workdir string) *Hook {
-	return &Hook{
-		name:   name,
-		script: script,
-	}
-}
-
-// Run execute a hook
-func (h *Hook) Run(workdir string) error {
-	var script string
-	if !utils.IsRegularFile(h.script) {
-		hookScript, err := ioutil.TempFile(os.TempDir(), "fx-hook-script-")
-		if err != nil {
-			return err
-		}
-		defer os.Remove(hookScript.Name())
-
-		content := []byte(h.script)
-		if _, err = hookScript.Write(content); err != nil {
-			return err
-		}
-		if err := hookScript.Close(); err != nil {
-			return err
-		}
-		script = hookScript.Name()
-	} else {
-		absScript, err := filepath.Abs(h.script)
-		if err != nil {
-			return err
-		}
-		script = absScript
-	}
-
-	cmd := exec.Command("/bin/sh", script)
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = os.Stderr
-	if workdir != "" {
-		cmd.Dir = workdir
-	}
-
-	if err := cmd.Run(); err != nil {
-		return err
-	}
-	return nil
-}
-
-// Name hook name
-func (h *Hook) Name() string {
-	return h.name
-}
--- a/hook/hook_manager.go
+++ b/hook/hook_manager.go
@@ -1,54 +0,0 @@
-package hook
-
-import (
-	"os"
-	"path/filepath"
-
-	"github.com/metrue/fx/utils"
-)
-
-// HookNameBeforeBuild before build hook
-const HookNameBeforeBuild = "before_build"
-
-// RunBeforeBuildHook trigger before_build hook
-func RunBeforeBuildHook(workdir string) error {
-	hooks, err := descovery("")
-	if err != nil {
-		return err
-	}
-	for _, h := range hooks {
-		if h.Name() == HookNameBeforeBuild {
-			if err := h.Run(workdir); err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-func descovery(hookdir string) ([]*Hook, error) {
-	if hookdir == "" {
-		dir, err := os.Getwd()
-		if err != nil {
-			return nil, err
-		}
-		hookdir = filepath.Join(dir, ".hooks")
-	}
-
-	hooks := []*Hook{}
-	if !utils.IsDir(hookdir) {
-		return hooks, nil
-	}
-	if err := filepath.Walk(hookdir, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-		if info.Name() == HookNameBeforeBuild {
-			hooks = append(hooks, New("before_build", path, ""))
-		}
-		return nil
-	}); err != nil {
-		return nil, err
-	}
-	return hooks, nil
-}
--- a/hook/hook_manager_test.go
+++ b/hook/hook_manager_test.go
@@ -1,40 +0,0 @@
-package hook
-
-import (
-	"os"
-	"path/filepath"
-	"testing"
-)
-
-func TestHookManager(t *testing.T) {
-	t.Run("descovery in default hookdir .hooks", func(t *testing.T) {
-		hooks, err := descovery("")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if len(hooks) != 1 {
-			t.Fatalf("should have one hook, but got %d", len(hooks))
-		}
-
-		if hooks[0].Name() != HookNameBeforeBuild {
-			t.Fatalf("should be before_build hook, but got %s", hooks[0].Name())
-		}
-	})
-
-	t.Run("descovery in empty hookdir", func(t *testing.T) {
-		hooks, err := descovery(filepath.Join(os.TempDir(), ".hooks"))
-		if err != nil {
-			t.Fatal(err)
-		}
-		if len(hooks) != 0 {
-			t.Fatalf("should get 0 hooks, but got %d", len(hooks))
-		}
-	})
-
-	t.Run("run before_build hook", func(t *testing.T) {
-		if err := RunBeforeBuildHook("fixture"); err != nil {
-			t.Fatal(err)
-		}
-	})
-}
--- a/hook/hook_test.go
+++ b/hook/hook_test.go
@@ -1,21 +0,0 @@
-package hook
-
-import (
-	"testing"
-)
-
-func TestHook(t *testing.T) {
-	t.Run("text", func(t *testing.T) {
-		h := New("before_build", "npm install leftpad", "fixture")
-		if err := h.Run("fixture"); err != nil {
-			t.Fatal(err)
-		}
-	})
-
-	t.Run("script", func(t *testing.T) {
-		h := New("before_build", ".hooks/before_build", "fixture")
-		if err := h.Run("fixture"); err != nil {
-			t.Fatal(err)
-		}
-	})
-}
--- a/infra/docker/cloud.go
+++ b/infra/docker/cloud.go
@@ -0,0 +1,180 @@
+package docker
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+
+	"github.com/metrue/fx/infra"
+	"github.com/metrue/fx/types"
+	"github.com/metrue/go-ssh-client"
+	"github.com/mitchellh/go-homedir"
+)
+
+// Cloud define a docker host
+type Cloud struct {
+	IP   string `json:"ip"`
+	User string `json:"user"`
+	Name string `json:"name"`
+	Type string `json:"type"`
+
+	sshClient ssh.Clienter
+}
+
+// New new a docker cloud
+func New(ip string, user string, name string) *Cloud {
+	return &Cloud{
+		IP:   ip,
+		User: user,
+		Name: name,
+		Type: types.CloudTypeDocker,
+	}
+}
+
+// Create a docker node
+func Create(ip string, user string, name string) (*Cloud, error) {
+	key, err := sshkey()
+	if err != nil {
+		return nil, err
+	}
+	port := sshport()
+	sshClient := ssh.New(ip).WithUser(user).WithKey(key).WithPort(port)
+	return &Cloud{
+		IP:   ip,
+		User: user,
+		Name: name,
+		Type: types.CloudTypeDocker,
+
+		sshClient: sshClient,
+	}, nil
+}
+
+// Load a docker node from meta
+func Load(meta []byte) (*Cloud, error) {
+	var cloud Cloud
+	if err := json.Unmarshal(meta, &cloud); err != nil {
+		return nil, err
+	}
+	key, err := sshkey()
+	if err != nil {
+		return nil, err
+	}
+	port := sshport()
+	sshClient := ssh.New(cloud.IP).WithUser(cloud.User).WithKey(key).WithPort(port)
+	cloud.sshClient = sshClient
+
+	return &cloud, nil
+}
+
+// Provision a host
+func (c *Cloud) Provision() error {
+	if err := c.runCmd(infra.Scripts["docker_version"].(string)); err != nil {
+		if err := c.runCmd(infra.Scripts["install_docker"].(string)); err != nil {
+			return err
+		}
+
+		if err := c.runCmd(infra.Scripts["start_dockerd"].(string)); err != nil {
+			return err
+		}
+	}
+
+	if err := c.runCmd(infra.Scripts["check_fx_agent"].(string)); err != nil {
+		if err := c.runCmd(infra.Scripts["start_fx_agent"].(string)); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// GetType cloud type
+func (c *Cloud) GetType() string {
+	return c.Type
+}
+
+func (c *Cloud) GetConfig() (string, error) {
+	data, err := json.Marshal(c)
+	if err != nil {
+		return "", err
+	}
+	return string(data), nil
+}
+
+func (c *Cloud) Dump() ([]byte, error) {
+	return json.Marshal(c)
+}
+
+// IsHealth check if cloud is in health
+func (c *Cloud) IsHealth() (bool, error) {
+	if err := c.runCmd(infra.Scripts["check_fx_agent"].(string)); err != nil {
+		if err := c.runCmd(infra.Scripts["start_fx_agent"].(string)); err != nil {
+			return false, err
+		}
+	}
+	return true, nil
+}
+
+// NOTE only using for unit testing
+func (c *Cloud) setsshClient(client ssh.Clienter) {
+	c.sshClient = client
+}
+
+// nolint:unparam
+func (c *Cloud) runCmd(script string, options ...ssh.CommandOptions) error {
+	option := ssh.CommandOptions{}
+	if len(options) >= 1 {
+		option = options[0]
+	}
+
+	local := c.IP == "127.0.0.1" || c.IP == "localhost"
+	if local && os.Getenv("CI") == "" {
+		params := strings.Split(script, " ")
+		if len(params) == 0 {
+			return fmt.Errorf("invalid script: %s", script)
+		}
+		// nolint
+		cmd := exec.Command(params[0], params[1:]...)
+		cmd.Stdout = option.Stdout
+		cmd.Stderr = option.Stderr
+		err := cmd.Run()
+		if err != nil {
+			return err
+		}
+		return nil
+	}
+
+	return c.sshClient.RunCommand(script, option)
+}
+
+// NOTE the reason putting sshkey() and sshport here inside node.go is because
+// ssh key and ssh port is related to node it self, we may extend this in future
+func sshkey() (string, error) {
+	path := os.Getenv("SSH_KEY_FILE")
+	if path != "" {
+		absPath, err := filepath.Abs(path)
+		if err != nil {
+			return "", err
+		}
+		return absPath, nil
+	}
+
+	key, err := homedir.Expand("~/.ssh/id_rsa")
+	if err != nil {
+		return "", err
+	}
+	return key, nil
+}
+
+func sshport() string {
+	port := os.Getenv("SSH_PORT")
+	if port != "" {
+		return port
+	}
+	return "22"
+}
+
+var (
+	_ infra.Clouder = &Cloud{}
+)
--- a/infra/docker/cloud_test.go
+++ b/infra/docker/cloud_test.go
@@ -0,0 +1,158 @@
+package docker
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/golang/mock/gomock"
+	"github.com/metrue/fx/infra"
+	"github.com/metrue/go-ssh-client"
+	sshMocks "github.com/metrue/go-ssh-client/mocks"
+	"github.com/mitchellh/go-homedir"
+)
+
+func TestCloudProvision(t *testing.T) {
+	t.Run("fx agent started", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		n := New("127.0.0.1", "fx", "master")
+		sshClient := sshMocks.NewMockClienter(ctrl)
+		n.setsshClient(sshClient)
+		sshClient.EXPECT().RunCommand(infra.Scripts["docker_version"].(string), ssh.CommandOptions{}).Return(nil)
+		sshClient.EXPECT().RunCommand(infra.Scripts["check_fx_agent"].(string), ssh.CommandOptions{}).Return(nil)
+		if err := n.Provision(); err != nil {
+			t.Fatal(err)
+		}
+	})
+
+	t.Run("fx agent not started", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		n := New("127.0.0.1", "fx", "master")
+		sshClient := sshMocks.NewMockClienter(ctrl)
+		n.setsshClient(sshClient)
+		sshClient.EXPECT().RunCommand(infra.Scripts["docker_version"].(string), ssh.CommandOptions{}).Return(nil)
+		sshClient.EXPECT().RunCommand(infra.Scripts["check_fx_agent"].(string), ssh.CommandOptions{}).Return(fmt.Errorf("no such container"))
+		sshClient.EXPECT().RunCommand(infra.Scripts["start_fx_agent"].(string), ssh.CommandOptions{}).Return(nil)
+		if err := n.Provision(); err != nil {
+			t.Fatal(err)
+		}
+	})
+
+	t.Run("docker not installed and fx agent not started", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		n := New("127.0.0.1", "fx", "master")
+		sshClient := sshMocks.NewMockClienter(ctrl)
+		n.setsshClient(sshClient)
+		sshClient.EXPECT().RunCommand(infra.Scripts["docker_version"].(string), ssh.CommandOptions{}).Return(fmt.Errorf("no such command"))
+		sshClient.EXPECT().RunCommand(infra.Scripts["install_docker"].(string), ssh.CommandOptions{}).Return(nil)
+		sshClient.EXPECT().RunCommand(infra.Scripts["start_dockerd"].(string), ssh.CommandOptions{}).Return(nil)
+		sshClient.EXPECT().RunCommand(infra.Scripts["check_fx_agent"].(string), ssh.CommandOptions{}).Return(fmt.Errorf("no such container"))
+		sshClient.EXPECT().RunCommand(infra.Scripts["start_fx_agent"].(string), ssh.CommandOptions{}).Return(nil)
+		if err := n.Provision(); err != nil {
+			t.Fatal(err)
+		}
+	})
+}
+
+func TestCloudIsHealth(t *testing.T) {
+	t.Run("agent started", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+		cloud := New("127.0.0.1", "fx", "master")
+		sshClient := sshMocks.NewMockClienter(ctrl)
+		cloud.setsshClient(sshClient)
+
+		sshClient.EXPECT().RunCommand(infra.Scripts["check_fx_agent"].(string), ssh.CommandOptions{}).Return(nil)
+		ok, err := cloud.IsHealth()
+		if err != nil {
+			t.Fatal(err)
+		}
+		if !ok {
+			t.Fatalf("cloud should be healthy")
+		}
+	})
+
+	t.Run("agent not started, and retart ok", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+		cloud := New("127.0.0.1", "fx", "master")
+		sshClient := sshMocks.NewMockClienter(ctrl)
+		cloud.setsshClient(sshClient)
+
+		sshClient.EXPECT().RunCommand(infra.Scripts["check_fx_agent"].(string), ssh.CommandOptions{}).Return(fmt.Errorf("fx agent not started"))
+		sshClient.EXPECT().RunCommand(infra.Scripts["start_fx_agent"].(string), ssh.CommandOptions{}).Return(nil)
+		ok, err := cloud.IsHealth()
+		if err != nil {
+			t.Fatal(err)
+		}
+		if !ok {
+			t.Fatalf("cloud should be healthy")
+		}
+	})
+
+	t.Run("agent not started, but restart failed", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+		cloud := New("127.0.0.1", "fx", "master")
+		sshClient := sshMocks.NewMockClienter(ctrl)
+		cloud.setsshClient(sshClient)
+
+		sshClient.EXPECT().RunCommand(infra.Scripts["check_fx_agent"].(string), ssh.CommandOptions{}).Return(fmt.Errorf("fx agent not started"))
+		sshClient.EXPECT().RunCommand(infra.Scripts["start_fx_agent"].(string), ssh.CommandOptions{}).Return(fmt.Errorf("fx agent started failed"))
+		ok, err := cloud.IsHealth()
+		if err == nil {
+			t.Fatal("should got failed starting")
+		}
+		if ok {
+			t.Fatalf("cloud should not be healthy")
+		}
+	})
+}
+
+func TestGetSSHKeyFile(t *testing.T) {
+	t.Run("defaut", func(t *testing.T) {
+		defau, err := sshkey()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		defaultPath, _ := homedir.Expand("~/.ssh/id_rsa")
+		if defau != defaultPath {
+			t.Fatalf("should get %s but got %s", defaultPath, defau)
+		}
+	})
+
+	t.Run("override from env", func(t *testing.T) {
+		os.Setenv("SSH_KEY_FILE", "/tmp/id_rsa")
+		keyFile, err := sshkey()
+		if err != nil {
+			t.Fatal(err)
+		}
+		if keyFile != "/tmp/id_rsa" {
+			t.Fatalf("should get %s but got %s", "/tmp/id_rsa", keyFile)
+		}
+	})
+}
+
+func TestGetSSHPort(t *testing.T) {
+	t.Run("defaut", func(t *testing.T) {
+		defau := sshport()
+		if defau != "22" {
+			t.Fatalf("should get %s but got %s", "22", defau)
+		}
+	})
+
+	t.Run("override from env", func(t *testing.T) {
+		os.Setenv("SSH_PORT", "2222")
+		defau := sshport()
+		if defau != "2222" {
+			t.Fatalf("should get %s but got %s", "2222", defau)
+		}
+	})
+}
--- a/infra/docker/deployer.go
+++ b/infra/docker/deployer.go
@@ -6,66 +6,48 @@ import (

 	dockerTypes "github.com/docker/docker/api/types"
 	containerruntimes "github.com/metrue/fx/container_runtimes"
-	"github.com/metrue/fx/driver"
+	"github.com/metrue/fx/infra"
 	"github.com/metrue/fx/pkg/spinner"
 	"github.com/metrue/fx/types"
 )

-// Driver manage container
-type Driver struct {
-	dockerClient containerruntimes.ContainerRuntime
+// Deployer manage container
+type Deployer struct {
+	cli containerruntimes.ContainerRuntime
 }

-// Options to initialize a fx docker driver
-type Options struct {
-	DockerClient containerruntimes.ContainerRuntime
-}
-
-// New a fx docker driver
-func New(options Options) *Driver {
-	return &Driver{
-		dockerClient: options.DockerClient,
-	}
-}
-
-// Ping check healty status of driver
-func (d *Driver) Ping(ctx context.Context) error {
-	if _, err := d.dockerClient.Version(ctx); err != nil {
-		return err
-	}
-	return nil
+// CreateClient create a docker instance
+func CreateClient(client containerruntimes.ContainerRuntime) (d *Deployer, err error) {
+	return &Deployer{cli: client}, nil
 }

 // Deploy create a Docker container from given image, and bind the constants.FxContainerExposePort to given port
-func (d *Driver) Deploy(ctx context.Context, fn string, name string, image string, ports []types.PortBinding) (err error) {
+func (d *Deployer) Deploy(ctx context.Context, fn string, name string, image string, ports []types.PortBinding) (err error) {
 	spinner.Start("deploying " + name)
 	defer func() {
 		spinner.Stop("deploying "+name, err)
 	}()
-	return d.dockerClient.StartContainer(ctx, name, image, ports)
+	return d.cli.StartContainer(ctx, name, image, ports)
 }

 // Update a container
-func (d *Driver) Update(ctx context.Context, name string) error {
+func (d *Deployer) Update(ctx context.Context, name string) error {
 	return nil
 }

 // Destroy stop and remove container
-func (d *Driver) Destroy(ctx context.Context, name string) (err error) {
+func (d *Deployer) Destroy(ctx context.Context, name string) (err error) {
 	spinner.Start("destroying " + name)
 	defer func() {
 		spinner.Stop("destroying "+name, err)
 	}()
-	if err := d.dockerClient.StopContainer(ctx, name); err != nil {
-		return err
-	}
-	return d.dockerClient.RemoveContainer(ctx, name)
+	return d.cli.StopContainer(ctx, name)
 }

 // GetStatus get a service status
-func (d *Driver) GetStatus(ctx context.Context, name string) (types.Service, error) {
+func (d *Deployer) GetStatus(ctx context.Context, name string) (types.Service, error) {
 	var container dockerTypes.ContainerJSON
-	if err := d.dockerClient.InspectContainer(ctx, name, &container); err != nil {
+	if err := d.cli.InspectContainer(ctx, name, &container); err != nil {
 		return types.Service{}, err
 	}

@@ -73,7 +55,6 @@ func (d *Driver) GetStatus(ctx context.Context, name string) (types.Service, err
 		ID:   container.ID,
 		Name: container.Name,
 	}
-
 	for _, bindings := range container.NetworkSettings.Ports {
 		if len(bindings) > 0 {
 			binding := bindings[0]
@@ -95,12 +76,26 @@ func (d *Driver) GetStatus(ctx context.Context, name string) (types.Service, err
 	return service, nil
 }

+// Ping check healty status of infra
+func (d *Deployer) Ping(ctx context.Context) error {
+	if _, err := d.cli.Version(ctx); err != nil {
+		return err
+	}
+	return nil
+}
+
 // List services
-func (d *Driver) List(ctx context.Context, name string) (svcs []types.Service, err error) {
+func (d *Deployer) List(ctx context.Context, name string) (svcs []types.Service, err error) {
+	const task = "listing"
+	spinner.Start(task)
+	defer func() {
+		spinner.Stop(task, err)
+	}()
+
 	// FIXME support remote host
-	return d.dockerClient.ListContainer(ctx, name)
+	return d.cli.ListContainer(ctx, name)
 }

 var (
-	_ driver.Driver = &Driver{}
+	_ infra.Deployer = &Deployer{}
 )
--- a/infra/docker/deployer_test.go
+++ b/infra/docker/deployer_test.go
@@ -0,0 +1,43 @@
+package docker
+
+import (
+	"testing"
+)
+
+func TestDocker(t *testing.T) {
+	// 	ctx := context.Background()
+	// 	cli, err := CreateClient(ctx)
+	// 	if err != nil {
+	// 		t.Fatal(err)
+	// 	}
+	//
+	// 	name := "helloworld"
+	// 	bindings := []types.PortBinding{
+	// 		types.PortBinding{
+	// 			ServiceBindingPort:  80,
+	// 			ContainerExposePort: 3000,
+	// 		},
+	// 		types.PortBinding{
+	// 			ServiceBindingPort:  443,
+	// 			ContainerExposePort: 3000,
+	// 		},
+	// 	}
+	//
+	// 	fn := types.Func{
+	// 		Language: "node",
+	// 		Source: `
+	// module.exports = (ctx) => {
+	// 	ctx.body = 'hello world'
+	// }
+	// `,
+	// 	}
+	// 	if err := cli.Deploy(ctx, fn, name, name, bindings); err != nil {
+	// 		t.Fatal(err)
+	// 	}
+	//
+	// 	time.Sleep(1 * time.Second)
+	//
+	// 	if err := cli.Destroy(ctx, name); err != nil {
+	// 		t.Fatal(err)
+	// 	}
+}
--- a/infra/docker/docker.go
+++ b/infra/docker/docker.go
@@ -0,0 +1,8 @@
+package docker
+
+import containerruntimes "github.com/metrue/fx/container_runtimes"
+
+// CreateDeployer create a deployer
+func CreateDeployer(client containerruntimes.ContainerRuntime) (*Deployer, error) {
+	return &Deployer{cli: client}, nil
+}
--- a/infra/docker/fixture/Dockerfile
+++ b/infra/docker/fixture/Dockerfile
--- a/driver/docker/fixture/app.js
+++ b/driver/docker/fixture/app.js
--- a/infra/docker/fixture/fx.js
+++ b/infra/docker/fixture/fx.js
--- a/driver/driver.go
+++ b/driver/driver.go
@@ -1,4 +1,4 @@
-package driver
+package infra

 import (
 	"context"
@@ -6,8 +6,17 @@ import (
 	"github.com/metrue/fx/types"
 )

-// Driver fx function running driver
-type Driver interface {
+// Clouder cloud interface
+type Clouder interface {
+	Provision() error
+	GetConfig() (string, error)
+	GetType() string
+	Dump() ([]byte, error)
+	IsHealth() (bool, error)
+}
+
+// Deployer deploy interface
+type Deployer interface {
 	Deploy(ctx context.Context, fn string, name string, image string, bindings []types.PortBinding) error
 	Destroy(ctx context.Context, name string) error
 	Update(ctx context.Context, name string) error
@@ -15,3 +24,8 @@ type Driver interface {
 	List(ctx context.Context, name string) ([]types.Service, error)
 	Ping(ctx context.Context) error
 }
+
+// Infra infrastructure provision interface
+type Infra interface {
+	Deployer
+}
--- a/infra/k8s/cloud.go
+++ b/infra/k8s/cloud.go
@@ -0,0 +1,270 @@
+package k8s
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+
+	"github.com/metrue/fx/infra"
+	"github.com/metrue/fx/types"
+	"github.com/metrue/fx/utils"
+)
+
+// Cloud define a cloud
+type Cloud struct {
+	//  Define where is the location of kubeconf would be saved to
+	KubeConfig string           `json:"config"`
+	Type       string           `json:"type"`
+	Nodes      map[string]Noder `json:"nodes"`
+
+	token string
+	url   string
+}
+
+// Load a cloud from config
+func Load(meta []byte, messup ...func(n Noder) (Noder, error)) (*Cloud, error) {
+	var cloud Cloud
+	if err := json.Unmarshal(meta, &cloud); err != nil {
+		return nil, err
+	}
+
+	for name, n := range cloud.Nodes {
+		// NOTE messup function is just for unit testing
+		// we use it to replace the real not with mock node
+		if len(messup) > 0 {
+			node, err := messup[0](n)
+			if err != nil {
+				return nil, err
+			}
+			cloud.Nodes[name] = node
+		}
+	}
+	return &cloud, nil
+}
+
+// NewCloud new a cloud
+func NewCloud(kubeconf string, node ...Noder) *Cloud {
+	nodes := map[string]Noder{}
+	for _, n := range node {
+		nodes[n.GetName()] = n
+	}
+
+	return &Cloud{
+		KubeConfig: kubeconf,
+		Type:       types.CloudTypeK8S,
+		Nodes:      nodes,
+	}
+}
+
+// Provision provision cloud
+func (c *Cloud) Provision() error {
+	var master Noder
+	agents := []Noder{}
+	for _, n := range c.Nodes {
+		if n.GetType() == NodeTypeMaster {
+			master = n
+		} else {
+			agents = append(agents, n)
+		}
+	}
+
+	// when it's k3s cluster
+	if master != nil {
+		c.url = fmt.Sprintf("https://%s:6443", master.GetIP())
+		if err := master.Provision(map[string]string{}); err != nil {
+			return err
+		}
+
+		tok, err := master.GetToken()
+		if err != nil {
+			return err
+		}
+		c.token = tok
+
+		config, err := master.GetConfig()
+		if err != nil {
+			return err
+		}
+
+		if err := utils.EnsureFile(c.KubeConfig); err != nil {
+			return err
+		}
+		if err := ioutil.WriteFile(c.KubeConfig, []byte(config), 0666); err != nil {
+			return err
+		}
+	}
+
+	if len(agents) > 0 {
+		errCh := make(chan error, len(agents))
+		defer close(errCh)
+
+		for _, agent := range agents {
+			go func(node Noder) {
+				errCh <- node.Provision(map[string]string{
+					"url":   c.url,
+					"token": c.token,
+				})
+			}(agent)
+		}
+
+		for range agents {
+			err := <-errCh
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// AddNode a node
+func (c *Cloud) AddNode(n Noder, skipProvision bool) error {
+	if !skipProvision {
+		if err := n.Provision(map[string]string{
+			"url":   c.url,
+			"token": c.token,
+		}); err != nil {
+			return err
+		}
+	}
+
+	c.Nodes[n.GetName()] = n
+	return nil
+}
+
+// DeleteNode a node
+func (c *Cloud) DeleteNode(name string) error {
+	node, ok := c.Nodes[name]
+	if ok {
+		delete(c.Nodes, name)
+	}
+	if node.GetType() == NodeTypeMaster && len(c.Nodes) > 0 {
+		return fmt.Errorf("could not delete master node since there is still agent node running")
+	}
+	return nil
+}
+
+// State get cloud state
+func (c *Cloud) State() {}
+
+// UnmarshalJSON unmarsha json
+func (c *Cloud) UnmarshalJSON(data []byte) error {
+	var m map[string]interface{}
+	if err := json.Unmarshal(data, &m); err != nil {
+		return err
+	}
+
+	c.Nodes = make(map[string]Noder)
+
+	for k, v := range m {
+		if k == "nodes" {
+			nodes, ok := v.(map[string]interface{})
+			if !ok {
+				return fmt.Errorf("invalid nodes data")
+			}
+			for name, n := range nodes {
+				node, ok := n.(map[string]interface{})
+				if !ok {
+					return fmt.Errorf("invalid node data")
+				}
+				n, err := CreateNode(node["ip"].(string), node["user"].(string), node["type"].(string), node["name"].(string))
+				if err != nil {
+					return err
+				}
+				c.Nodes[name] = n
+			}
+		} else if k == "token" {
+			tok, ok := v.(string)
+			if ok {
+				c.token = tok
+			} else {
+				c.token = ""
+			}
+		} else if k == "config" {
+			config, ok := v.(string)
+			if ok {
+				c.KubeConfig = config
+			} else {
+				c.KubeConfig = ""
+			}
+		} else if k == "type" {
+			typ, ok := v.(string)
+			if ok {
+				c.Type = typ
+			} else {
+				c.Type = ""
+			}
+		} else if k == "url" {
+			url, ok := v.(string)
+			if ok {
+				c.url = url
+			} else {
+				c.url = ""
+			}
+		}
+	}
+
+	return nil
+}
+
+// MarshalJSON cloud information
+func (c *Cloud) MarshalJSON() ([]byte, error) {
+	nodes := map[string]Node{}
+	for name, node := range c.Nodes {
+		nodes[name] = Node{
+			IP:   node.GetIP(),
+			Type: node.GetType(),
+			User: node.GetUser(),
+			Name: node.GetName(),
+		}
+	}
+
+	body, err := json.Marshal(struct {
+		URL        string          `json:"url"`
+		KubeConfig string          `json:"config"`
+		Type       string          `json:"type"`
+		Token      string          `json:"token"`
+		Nodes      map[string]Node `json:"nodes"`
+	}{
+		KubeConfig: c.KubeConfig,
+		Type:       c.Type,
+		Token:      c.token,
+		URL:        c.url,
+		Nodes:      nodes,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return body, nil
+}
+
+// GetType get type of cloud
+func (c *Cloud) GetType() string {
+	return c.Type
+}
+
+// Dump cloud data
+func (c *Cloud) Dump() ([]byte, error) {
+	return json.Marshal(c)
+}
+
+// GetConfig get config
+func (c *Cloud) GetConfig() (string, error) {
+	if c.KubeConfig != "" {
+		return c.KubeConfig, nil
+	}
+	if err := c.Provision(); err != nil {
+		return "", err
+	}
+	return c.KubeConfig, nil
+}
+
+// IsHealth check if cloud is in health
+func (c *Cloud) IsHealth() (bool, error) {
+	return true, nil
+}
+
+var (
+	_ infra.Clouder = &Cloud{}
+)
--- a/infra/k8s/cloud_test.go
+++ b/infra/k8s/cloud_test.go
@@ -0,0 +1,170 @@
+package k8s
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"testing"
+
+	"github.com/golang/mock/gomock"
+	mock_infra "github.com/metrue/fx/infra/k8s/mocks"
+)
+
+func TestLoad(t *testing.T) {
+	t.Run("empty meta", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		var createNodeFn = func(n Noder) (Noder, error) {
+			return nil, nil
+		}
+
+		_, err := Load([]byte{}, createNodeFn)
+		if err == nil {
+			t.Fatalf("should load with error")
+		}
+	})
+
+	t.Run("only master node", func(t *testing.T) {
+		kubeconfig := "./kubeconfig.yml"
+		defer func() {
+			if err := os.RemoveAll("./kubeconfig.yml"); err != nil {
+				t.Fatal(err)
+			}
+		}()
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		master := mock_infra.NewMockNoder(ctrl)
+		var createNodeFn = func(n Noder) (Noder, error) {
+			return master, nil
+		}
+		typ := NodeTypeMaster
+		name := "master"
+		ip := "127.0.0.1"
+		user := "testuser"
+		kubeconfContent := "sample-content"
+		master.EXPECT().GetName().Return(name)
+		master.EXPECT().GetType().Return(typ).Times(2)
+		master.EXPECT().GetIP().Return(ip).Times(2)
+		master.EXPECT().GetUser().Return(user)
+		master.EXPECT().GetConfig().Return(kubeconfContent, nil)
+
+		claud := &Cloud{
+			KubeConfig: kubeconfig,
+			Type:       "k8s",
+			url:        "",
+			token:      "",
+			Nodes:      map[string]Noder{"master-node": master},
+		}
+
+		meta, err := json.Marshal(claud)
+		if err != nil {
+			t.Fatal(err)
+		}
+		cloud, err := Load(meta, createNodeFn)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if len(cloud.Nodes) != 1 {
+			t.Fatalf("should get %d but got %d", 1, len(cloud.Nodes))
+		}
+
+		master.EXPECT().Provision(map[string]string{}).Return(nil)
+		master.EXPECT().GetToken().Return("tok-1", nil)
+		if err := cloud.Provision(); err != nil {
+			t.Fatal(err)
+		}
+
+		content, err := ioutil.ReadFile(claud.KubeConfig)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if string(content) != kubeconfContent {
+			t.Fatalf("should get %s but got %s", kubeconfContent, content)
+		}
+	})
+
+	t.Run("one master node and one agent", func(t *testing.T) {
+		kubeconfig := "./kubeconfig.yml"
+		defer func() {
+			if err := os.RemoveAll("./kubeconfig.yml"); err != nil {
+				t.Fatal(err)
+			}
+		}()
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		master := mock_infra.NewMockNoder(ctrl)
+		node := mock_infra.NewMockNoder(ctrl)
+		var createNodeFn = func(n Noder) (Noder, error) {
+			if n.GetType() == NodeTypeMaster {
+				return master, nil
+			}
+			return node, nil
+		}
+		typ := NodeTypeMaster
+		name := "master"
+		ip := "127.0.0.1"
+		user := "testuser"
+		kubeconfContent := "sample-config"
+		master.EXPECT().GetName().Return(name)
+		master.EXPECT().GetType().Return(typ).Times(2)
+		master.EXPECT().GetIP().Return(ip).Times(3)
+		master.EXPECT().GetConfig().Return(kubeconfContent, nil)
+		master.EXPECT().GetUser().Return(user)
+
+		nodeType := NodeTypeAgent
+		nodeName := "agent_name"
+		nodeIP := "12.12.12.12"
+		nodeUser := "testuser"
+		node.EXPECT().GetName().Return(nodeName)
+		node.EXPECT().GetType().Return(nodeType).Times(2)
+		node.EXPECT().GetIP().Return(nodeIP)
+		node.EXPECT().GetUser().Return(nodeUser)
+
+		url := fmt.Sprintf("https://%s:6443", master.GetIP())
+		tok := "tok-1"
+		claud := &Cloud{
+			KubeConfig: kubeconfig,
+			url:        url,
+			token:      tok,
+			Type:       "k8s",
+			Nodes:      map[string]Noder{"master-node": master, "agent-node": node},
+		}
+		meta, err := json.Marshal(claud)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		cloud, err := Load(meta, createNodeFn)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if len(cloud.Nodes) != 2 {
+			t.Fatalf("should get %d but got %d", 2, len(cloud.Nodes))
+		}
+
+		master.EXPECT().Provision(map[string]string{}).Return(nil)
+		master.EXPECT().GetToken().Return(tok, nil)
+		node.EXPECT().Provision(map[string]string{
+			"url":   cloud.url,
+			"token": cloud.token,
+		}).Return(nil)
+		if err := cloud.Provision(); err != nil {
+			t.Fatal(err)
+		}
+		content, err := ioutil.ReadFile(claud.KubeConfig)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if string(content) != kubeconfContent {
+			t.Fatalf("should get %s but got %s", kubeconfContent, content)
+		}
+	})
+}
+
+func TestProvision(t *testing.T) {}
--- a/driver/k8s/configmap.go
+++ b/driver/k8s/configmap.go
--- a/driver/k8s/configmap_test.go
+++ b/driver/k8s/configmap_test.go
--- a/driver/k8s/constants.go
+++ b/driver/k8s/constants.go
--- a/Show More
+++ b/Show More