initial commit

Dockerfile

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+#
+# dockerized node server
+#
+
+FROM node:6.10.1
+
+MAINTAINER Shiva Chandra Kumar K <ksck23@gmail.com>
+
+RUN mkdir -p /tmp/app
+
+WORKDIR /tmp/app
+
+ADD . /tmp/app
+
+RUN npm install
+
+ENV PORT 8000
+
+EXPOSE $PORT
+
+CMD ["npm", "start"]

README.md

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+# docker-example
+An example Docker image creation from scratch.
+
+### Install Docker Machine
+
+Follow the procedure [here](https://docs.docker.com/machine/install-machine/) to install docker-machine. Machine let's you start virtual hosts using virtual-box (in our case) and run docker on it.
+
+Note: you can run the following natively too. I'm using a virtual host to keep the dev env isolated.
+
+Get some help using :
+
+```sh
+$ docker-machine --help
+```
+
+### Create a VM (dev) running boot2docker
+
+Let's create a machine (virtual host). Ensure virtual-box is installed and running on your local machine.
+
+```sh
+$ docker-machine create --driver virtualbox dev
+
+$ docker-machine env dev (shows the new VM env configuration)
+
+# Copy the project's Dockerfile | package.json | server.js files into the VM.
+
+$ docker-machine scp -r . dev:/home/docker/
+
+$ docker-machine ssh dev (to login into the new VM)
+
+(optional)
+
+$ docker-machine start dev (start the VM)
+
+$ docker-machine stop dev (stop the VM)
+
+$ docker-machine ls (show list of VMs)
+
+$ docker-machine kill dev (kill the VM)
+
+$ docker-machine rm dev (to remove the VM completely)
+```
+
+### Getting Started
+
+Once you have ssh into `dev` VM which is a boot2docker image. You should see that `docker` is pre-installed on it. You are ready to start off.
+
+```sh
+
+$ docker build -t ksck23/node .
+
+$ docker run -it --rm --name app ksck23/node
+```

package.json

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+{
+  "name": "node-docker-example",
+  "version": "1.0.0",
+  "description": "Running example node.js server using docker",
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "node",
+    "docker"
+  ],
+  "author": "Shiva Chandra Kumar K <ksck23@gmail.com>",
+  "license": "MIT"
+}

server.js

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+const http = require('http');
+
+const hostname = '0.0.0.0';
+const port = process.env.PORT || 8000;
+
+const server = http.createServer((req, res) => {
+  res.statusCode = 200;
+  res.setHeader('Content-Type', 'text/plain');
+  res.end('Hello World\n');
+});
+
+server.listen(port, hostname, () => {
+  console.log(`Server running at http://${hostname}:${port}/`);
+});