Initial

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

.dockerignore

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+./node_modules/**
+

.gitignore

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+node_modules/**

Dockerfile

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+FROM node:6.11.2-alpine
+
+RUN addgroup -S app && adduser -S -g app app
+
+# Alternatively use ADD https:// (which will not be cached by Docker builder)
+RUN apk --no-cache add curl \
+    && echo "Pulling watchdog binary from Github." \
+    && curl -sSLf https://github.com/openfaas-incubator/of-watchdog/releases/download/0.2.1/of-watchdog > /usr/bin/fwatchdog \
+    && chmod +x /usr/bin/fwatchdog \
+    && apk del curl --no-cache
+
+WORKDIR /root/
+
+# Turn down the verbosity to default level.
+ENV NPM_CONFIG_LOGLEVEL warn
+
+RUN mkdir -p /home/app
+
+# Wrapper/boot-strapper
+WORKDIR /home/app
+COPY package.json ./
+
+# This ordering means the npm installation is cached for the outer function handler.
+RUN npm i
+
+# Copy outer function handler
+COPY index.js ./
+
+# COPY function node packages and install, adding this as a separate
+# entry allows caching of npm install
+WORKDIR /home/app/function
+COPY function/*.json ./
+RUN npm i || :
+
+# COPY function files and folders
+COPY function/ ./
+
+# Set correct permissions to use non root user
+WORKDIR /home/app/
+
+# chmod for tmp is for a buildkit issue (@alexellis)
+RUN chown app:app -R /home/app \
+    && chmod 777 /tmp
+
+USER app
+
+ENV cgi_headers="true"
+ENV fprocess="node index.js"
+ENV mode="http"
+ENV upstream_url="http://127.0.0.1:3000"
+
+HEALTHCHECK --interval=1s CMD [ -e /tmp/.lock ] || exit 1
+
+CMD ["fwatchdog"]
+

function/handler.js

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+"use strict"
+
+module.exports = (context, callback) => {
+    callback(undefined, {status: "You said: " + JSON.stringify(context)});
+}

function/package.json

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+{
+  "name": "function",
+  "version": "1.0.0",
+  "description": "",
+  "main": "handler.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}

index.js

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+// Copyright (c) Alex Ellis 2017. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+"use strict"
+
+const express = require('express')
+const app = express()
+const handler = require('./function/handler');
+const bodyParser = require('body-parser')
+
+// app.use(bodyParser.urlencoded({ extended: false }));
+app.use(bodyParser.json());
+app.use(bodyParser.raw());
+app.use(bodyParser.text({ type : "text/*" }));
+
+var middleware = (req, res) => {
+    handler(req.body, (err, functionResult) => {
+        if (err) {
+            return console.error(err);
+        }
+        if(isArray(functionResult) || isObject(functionResult)) {
+            res.send(JSON.stringify(functionResult));
+        } else {
+            res.send(functionResult);
+        }
+    });
+};
+
+app.post('/', middleware);
+app.get('/', middleware);
+
+app.listen(3000, () => {
+    console.log('OpenFaaS Node.js listening on port: 3000')
+});
+
+let isArray = (a) => {
+    return (!!a) && (a.constructor === Array);
+};
+
+let isObject = (a) => {
+    return (!!a) && (a.constructor === Object);
+};

package.json

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+{
+  "name": "node8-express",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "body-parser": "^1.18.2",
+    "express": "^4.16.2"
+  }
+}

template.yml

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+language: node8-express
+fprocess: node index.js