K8s docs update (#499)

* split fn-ui to its own service

* add fn namespace

* update path

* add namespace flag for kubectl

* simplify grabbing minikube IP and port

* typo: FUNCTIONS -> API_URL

docs/operating/kubernetes/README.md

@@ -9,14 +9,14 @@
 1. Deploy Fn to the Kubernetes cluster:
 
 ```bash
-$ cd docs/operating/
+$ cd docs/operating/kubernetes/
 $ kubectl create -f fn-service.yaml
 ```
 
 2. Once the Pods have started, check the service for the load balancer IP:
 
 ```bash
-$ kubectl get svc --watch
+$ kubectl -n fn get svc --watch
 NAME                                CLUSTER-IP      EXTERNAL-IP     PORT(S)                                                       AGE
 fn-mysql-master                     10.96.57.185    <none>          3306/TCP                                                      10m
 fn-redis-master                     10.96.127.51    <none>          6379/TCP                                                      10m
@@ -31,14 +31,13 @@ Note that `fn-service` is initially pending on allocating an external IP. The `k
 If you are using a Kubernetes setup that can expose a public load balancer, run:
 
 ```bash
-$ export FUNCTIONS=$(kubectl get -o json svc fn-service | jq -r '.status.loadBalancer.ingress[0].ip'):8080
+$ export API_URL=$(kubectl -n fn get -o json svc fn-service | jq -r '.status.loadBalancer.ingress[0].ip'):8080
 ```
 
 If you are using a Kubernetes setup like minikube, run
+
 ```bash
-$ echo $(minikube ip):$(kubectl get svc fn-service -o json | jq -r '.spec.ports[0].nodePort')
-192.168.99.100:30966
-$ export API_URL=http://192.168.99.100:30966
+$ export API_URL=$(minikube -n fn service fn-service --url)
 ```
 
 Now, test by creating a function via curl:

docs/operating/kubernetes/fn-service.yaml

@@ -1,17 +1,23 @@
 apiVersion: v1
+kind: Namespace
+metadata:
+  name: fn
+---
+apiVersion: v1
 kind: ConfigMap
 metadata:
   name: fn-service-config
-  namespace: default
+  namespace: fn
 data:
-  MQ_URL: redis://fn-redis-master.default
-  DB_URL: mysql://root:fnsecretpassword@tcp(fn-mysql-master:3306)/fn
-  API_URL: http://fn-service:8080
+  MQ_URL: redis://fn-redis-master.fn
+  DB_URL: mysql://root:fnsecretpassword@tcp(fn-mysql-master.fn:3306)/fn
+  API_URL: http://fn-service.fn:8080
 ---
 apiVersion: v1
 kind: Service
 metadata:
   name: fn-service
+  namespace: fn
   labels:
     app: fn
     role: fn-service
@@ -21,9 +27,6 @@ spec:
   - name: fn-service
     port: 8080
     targetPort: 8080
-  - name: fn-ui
-    port: 80
-    targetPort: 80
   selector:
     app: fn
     role: fn-service
@@ -32,6 +35,7 @@ apiVersion: extensions/v1beta1
 kind: DaemonSet
 metadata:
   name: fn-service
+  namespace: fn
 spec:
   updateStrategy:
     type: RollingUpdate
@@ -62,6 +66,41 @@ spec:
             configMapKeyRef:
               name: fn-service-config
               key: DB_URL
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: fn-ui
+  namespace: fn
+  labels:
+    app: fn
+    role: fn-ui
+spec:
+  type: LoadBalancer
+  ports:
+  - port: 80
+    targetPort: 80
+  selector:
+    app: fn
+    role: fn-ui
+---
+apiVersion: apps/v1beta1
+kind: Deployment
+metadata:
+  name: fn-ui
+  namespace: fn
+  labels:
+    app: fn
+    role: fn-ui
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: fn
+        role: fn-ui
+    spec:
+      containers:
       - name: fn-ui
         image: fnproject/ui:latest
         ports:
@@ -79,6 +118,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: fn-mysql-master
+  namespace: fn
   labels:
     app: mysql
     role: datastore
@@ -94,6 +134,7 @@ apiVersion: apps/v1beta1
 kind: Deployment
 metadata:
   name: fn-mysql-master
+  namespace: fn
 spec:
   replicas: 1
   template:
@@ -120,6 +161,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: fn-redis-master
+  namespace: fn
   labels:
     app: redis
     role: mq
@@ -135,6 +177,7 @@ apiVersion: apps/v1beta1
 kind: Deployment
 metadata:
   name: fn-redis-master
+  namespace: fn
 spec:
   replicas: 1
   template:
@@ -147,4 +190,4 @@ spec:
       - name: fn-redis
         image: redis:4.0
         ports:
-        - containerPort: 6379
+        - containerPort: 6379