# OUT OF DATE - NEEDS TO BE UPDATED

# Creating Docker images out of Lambda functions

Docker images created by running the `create-function` subcommand on a Lambda function are ready to execute.

You can convert any Lambda function of type nodejs 0.10, python 2.7 and Java 8 into an
FN compatible Docker Image as follows:

```bash
fn lambda create-function <name> <runtime> <handler> <files...>
```

* name: the name of the created docker image which should have the format `<username>/<image-name>`
* runtime: any of the following `nodejs`, `python2.7` or `java8`
* handler: a handler takes a different form per runtime
    * java8: `<namespace>.<class>::<handler>`
    * python2.7:  `<filename>.<handler>`
    * nodejs: `<filename>.<handler>`
* file: the files to be converted, however for java8 only one file of type `jar` is allowed.

e.g:

```bash
fn lambda create-function test/node-exec:1 nodejs node_exec.handler node_exec.js
```