Docker deploy
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This document discusses deploying a Node.js application using Docker. It provides steps for setting up a development environment on a local machine, provisioning a Ubuntu server using Vagrant, installing Docker on the server, building a Docker image from the application code, and automatically rebuilding and deploying the Docker container on code pushes to a git repository hosted on the server. The automated deployment is achieved through a post-receive git hook that checks out the new code, builds a new Docker image tagged with the git commit hash, stops and removes any existing containers, and runs the new container exposing port 80.
![Sample : Node.js
In Dev PC,
$ cd ./sample/app.js
var express = require(‘express’)
var app = express();
app.get([‘/‘, ‘/index.html’], function(req, res) {
res.send(‘Hello Docker’);
});
app.listen(80);](https://image.slidesharecdn.com/docker-deploy-160626171903/85/Docker-deploy-2-320.jpg)
Docker deploy
- 1. Docker : deploy Eric Ahn 2016/06
- 2. Sample : Node.js In Dev PC, $ cd ./sample/app.js var express = require(‘express’) var app = express(); app.get([‘/‘, ‘/index.html’], function(req, res) { res.send(‘Hello Docker’); }); app.listen(80);
- 3. Ubuntu Server $ Vagrantfile # -*- mode: ruby -*- # vi: set ft=ruby : Vagrant.configure(2) do |config| config.vm.box = "hashicorp/precise64" config.vm.box_version = “1.1.0" config.vm.host_name = 'git-serveer' config.vm.network "private_network", ip: "192.168.100.10" config.vm.network "forwarded_port", guest: 80, host: 8080 end $ vagrant up
- 4. https://docs.docker.com/engine/installation/linux/ubuntulinux/ $ vagrant ssh $ sudo apt-get update $ sudo apt-get install linux-image-generic-lts-trusty $ sudo reboot $ sudo apt-get update $ sudo apt-cache policy docker-engine $ sudo apt-get install docker-engine=1.10.3-0~precise $ sudo service docker start $ sudo docker run -it ubuntu bash
- 5. git SSH key-gem git repository DEV machine docker git git repository Server Test Env.
- 6. git SSH key-gem git repository DEV machine docker git git repository Server ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys 1) Set up “ssh”
- 7. git SSH key-gem git repository DEV machine docker git git repository Server 2) git push 2) git push
- 8. git SSH key-gem git repository DEV machine docker git git repository Server 2) post-receive 2) build with post-receive of git
- 9. #!/bin/bash APP_NAME=exampleapp APP_DIR=$HOME/$APP_NAME REVISION=$(expr substr $(git rev-parse --verify HEAD) 1 7) GIT_WORK_TREE=$APP_DIR git checkout -f cd $APP_DIR sudo docker build --tag $APP_NAME:$REVISION . sudo docker stop $APP_NAME sudo docker rm $APP_NAME sudo docker run -d --name $APP_NAME -p 80:80 $APP_NAME:$REVISION post-receive shell