Initial commit

Author: Daniel Gasienica

.gitignore

@@ -0,0 +1,7 @@
+.DS_Store
+
+# Node.js
+/node_modules
+
+# Vagrant
+.vagrant

Dockerfile

@@ -0,0 +1,18 @@
+# VERSION 0.2
+# DOCKER-VERSION 0.3.4
+# To build:
+# 1. Install docker (http://docker.io)
+# 2. Checkout source: [email protected]:gasi/docker-node-hello.git
+# 3. Build container: docker build .
+
+FROM    centos:6.4
+
+# Enable EPEL for Node.js
+RUN     rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
+# Install Node.js and npm
+RUN     yum install -y npm-1.2.17-5.el6
+
+# App
+ADD . /src
+EXPOSE  8080
+CMD ["node", "/src/index.js"]

Makefile

@@ -0,0 +1,20 @@
+install:
+	npm install
+
+build:
+	docker build -t gasi/centos-node-hello .
+
+run:
+	node index.js
+
+run-container:
+	docker run -d gasi/centos-node-hello
+
+test:
+	curl localhost
+
+clean:
+	rm -rf node_modules
+
+
+.PHONY: install build run test clean

README.md

@@ -0,0 +1,63 @@
+# Node.js Hello World
+
+Node.js Hello World on CentOS using [docker][].
+
+## Prerequisites
+
+- [Node.js & npm][node-js-download]
+
+## Getting Started
+
+-   Start Ubuntu virtual machine using Vagrant (required to run docker):
+
+        vagrant up
+
+-   SSH into virtual machine:
+
+        vagrant ssh
+
+-   Install dependencies:
+
+        cd /vagrant
+        make install
+
+-   Build docker image:
+
+        make build
+        # docker build -t gasi/centos-node-hello .
+
+
+-   Run app:
+
+        make run-container
+        # docker run -d gasi/centos-node-hello
+
+-   Install `curl`:
+
+        sudo apt-get install curl
+
+-   Get mapped port (last column) using, e.g. 49160:
+
+        docker ps
+
+        > # Example
+        > ID                  IMAGE                           COMMAND              CREATED             STATUS              PORTS
+        > ecce33b30ebf        gasi/centos-node-hello:latest   node /src/index.js   10 seconds ago      Up 9 seconds        49160->8080
+
+-   Test app using the port in previous step, e.g. 49160:
+
+        curl localhost:<port>
+
+        # Example
+        # curl localhost:49163
+
+    It should print `Hello World` to the console.
+
+## Acknowledgements
+
+Many thanks to @shykes and @unclejack for their support on IRC as well as the
+@dotCloud team for docker.
+
+
+[node-js-download]: http://nodejs.org/download/
+[docker]: http://docker.io

Vagrantfile

@@ -0,0 +1,72 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+BOX_NAME = ENV['BOX_NAME'] || "ubuntu"
+BOX_URI = ENV['BOX_URI'] || "http://files.vagrantup.com/precise64.box"
+AWS_REGION = ENV['AWS_REGION'] || "us-east-1"
+AWS_AMI    = ENV['AWS_AMI']    || "ami-d0f89fb9"
+
+Vagrant::Config.run do |config|
+  # Setup virtual machine box. This VM configuration code is always executed.
+  config.vm.box = BOX_NAME
+  config.vm.box_url = BOX_URI
+
+  # Provision docker and new kernel if deployment was not done
+  if Dir.glob("#{File.dirname(__FILE__)}/.vagrant/machines/default/*/id").empty?
+    # Add lxc-docker package
+    pkg_cmd = "apt-get update -qq; apt-get install -q -y python-software-properties; " \
+      "add-apt-repository -y ppa:dotcloud/lxc-docker; apt-get update -qq; " \
+      "apt-get install -q -y lxc-docker; "
+    # Add X.org Ubuntu backported 3.8 kernel
+    pkg_cmd << "add-apt-repository -y ppa:ubuntu-x-swat/r-lts-backport; " \
+      "apt-get update -qq; apt-get install -q -y linux-image-3.8.0-19-generic; "
+    # Add guest additions if local vbox VM
+    is_vbox = true
+    ARGV.each do |arg| is_vbox &&= !arg.downcase.start_with?("--provider") end
+    if is_vbox
+      pkg_cmd << "apt-get install -q -y linux-headers-3.8.0-19-generic dkms; " \
+        "echo 'Downloading VBox Guest Additions...'; " \
+        "wget -q http://dlc.sun.com.edgesuite.net/virtualbox/4.2.12/VBoxGuestAdditions_4.2.12.iso; "
+      # Prepare the VM to add guest additions after reboot
+      pkg_cmd << "echo -e 'mount -o loop,ro /home/vagrant/VBoxGuestAdditions_4.2.12.iso /mnt\n" \
+        "echo yes | /mnt/VBoxLinuxAdditions.run\numount /mnt\n" \
+          "rm /root/guest_additions.sh; ' > /root/guest_additions.sh; " \
+        "chmod 700 /root/guest_additions.sh; " \
+        "sed -i -E 's#^exit 0#[ -x /root/guest_additions.sh ] \\&\\& /root/guest_additions.sh#' /etc/rc.local; " \
+        "echo 'Installation of VBox Guest Additions is proceeding in the background.'; " \
+        "echo '\"vagrant reload\" can be used in about 2 minutes to activate the new guest additions.'; "
+    end
+    # Activate new kernel
+    pkg_cmd << "shutdown -r +1; "
+    config.vm.provision :shell, :inline => pkg_cmd
+  end
+end
+
+
+# Providers were added on Vagrant >= 1.1.0
+Vagrant::VERSION >= "1.1.0" and Vagrant.configure("2") do |config|
+  config.vm.provider :aws do |aws, override|
+    aws.access_key_id = ENV["AWS_ACCESS_KEY_ID"]
+    aws.secret_access_key = ENV["AWS_SECRET_ACCESS_KEY"]
+    aws.keypair_name = ENV["AWS_KEYPAIR_NAME"]
+    override.ssh.private_key_path = ENV["AWS_SSH_PRIVKEY"]
+    override.ssh.username = "ubuntu"
+    aws.region = AWS_REGION
+    aws.ami    = AWS_AMI
+    aws.instance_type = "t1.micro"
+  end
+
+  config.vm.provider :rackspace do |rs|
+    config.ssh.private_key_path = ENV["RS_PRIVATE_KEY"]
+    rs.username = ENV["RS_USERNAME"]
+    rs.api_key  = ENV["RS_API_KEY"]
+    rs.public_key_path = ENV["RS_PUBLIC_KEY"]
+    rs.flavor   = /512MB/
+    rs.image    = /Ubuntu/
+  end
+
+  config.vm.provider :virtualbox do |vb|
+    config.vm.box = BOX_NAME
+    config.vm.box_url = BOX_URI
+  end
+end

index.js

@@ -0,0 +1,14 @@
+var express = require('express');
+
+// Constants
+var DEFAULT_PORT = 8080;
+var PORT = process.env.PORT || DEFAULT_PORT;
+
+// App
+var app = express();
+app.get('/', function (req, res) {
+  res.send('Hello World\n');
+});
+
+app.listen(PORT)
+console.log('Running on http://localhost:' + PORT);

package.json

@@ -0,0 +1,10 @@
+{
+  "name": "docker-centos-hello-world",
+  "private": true,
+  "version": "0.0.1",
+  "description": "Node.js Hello World app on CentOS using docker",
+  "author": "Daniel Gasienica <[email protected]>",
+  "dependencies": {
+    "express": "3.2.4"
+  }
+}