Adding CoffeeScript base example

Adding CoffeeScript base

sample-functions/BaseFunctions/README.md

@@ -7,6 +7,7 @@ Each one will read the request from the watchdog then print it back resulting in
 | Language               | Docker image                            | Notes                                  |
 |------------------------|-----------------------------------------|----------------------------------------|
 | Node.js                | functions/base:node-6.9.1-alpine        | Node.js built on Alpine Linux          |
+| Coffeescript           | functions/base:node-6.9.1-alpine        | Coffeescript/Nodejs built on Alpine Linux |
 | Golang                 | functions/base:golang-1.7.5-alpine      | Golang compiled on Alpine Linux        |
 | Python                 | functions/base:python-2.7-alpine        | Python 2.7 built on Alpine Linux       |
 | Java                   | functions/base:openjdk-8u121-jdk-alpine | OpenJDK built on Alpine Linux |

sample-functions/BaseFunctions/coffee/Dockerfile

@@ -0,0 +1,19 @@
+FROM node:6.9.1-alpine
+
+ADD https://github.com/alexellis/faas/releases/download/0.5.1-alpha/fwatchdog /usr/bin
+RUN chmod +x /usr/bin/fwatchdog
+
+WORKDIR /root/
+
+COPY package.json .
+
+RUN npm install -g coffee-script && \
+    npm i
+
+COPY handler.coffee .
+
+ENV fprocess="coffee handler.coffee"
+
+HEALTHCHECK --interval=1s CMD [ -e /tmp/.lock ] || exit 1
+
+CMD ["fwatchdog"]

sample-functions/BaseFunctions/coffee/build.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+echo "Building functions/base:coffeescript-1.12-alpine"
+docker build -t functions/base:coffeescript-1.12-alpine .
+

sample-functions/BaseFunctions/coffee/handler.coffee

@@ -0,0 +1,7 @@
+getStdin = require 'get-stdin'
+
+handler = (req) -> console.log req
+
+getStdin()
+.then (val) -> handler val
+.catch (e) -> console.error e.stack

sample-functions/BaseFunctions/coffee/package.json

@@ -0,0 +1,16 @@
+{
+  "name": "NodejsBase",
+  "version": "1.0.0",
+  "description": "",
+  "main": "faas_index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "coffeescript": "^1.12.4",
+    "get-stdin": "^5.0.1"
+  }
+}