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Zero Downtime Deployment with Ansible - learn how to provision Linux servers with a web-proxy, a database and automate zero downtime deployment of a Java application to a load balanced environment.

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Intro

This is the starting point for the tutorial "Zero Downtime Deployment with Ansible" where you will learn how to provision Linux servers with a web-proxy, a database and automate zero downtime deployment of a Java application to a load balanced environment.

Requirements

Install Ansible

Mac:

Install Python setuptools: https://pypi.python.org/pypi/setuptools#installation-instructions

If you prefer not to install packages to your global site-packages you can install and use virtualenv: http://virtualenv.readthedocs.org/en/latest/

sudo easy_install pip

sudo pip install paramiko PyYAML jinja2 passlib

sudo pip install ansible

Then, if you're going to update ansible later, just do:

sudo pip install ansible --upgrade

Other:

http://docs.ansible.com/ansible/intro_installation.html#installing-the-control-machine

Install VirtualBox and Extension Pack

https://www.virtualbox.org/wiki/Downloads

Install Vagrant

http://docs.vagrantup.com/v2/installation/

Install vagrant-cachier plugin to speed up apt with a shared cache between boxes:

vagrant plugin install vagrant-cachier

Install vagrant-hostmanager plugin to manage the /etc/hosts file on guest machines and the host:

vagrant plugin install vagrant-hostmanager

Clone this repo, and start the virtual machines:

git clone https://github.com/steinim/zero-downtime-ansible.git
cd zero-downtime-ansible
vagrant up

Provision with Ansible

ansible-playbook site.yml

Install Java and Maven (Optional)

http://www.oracle.com/technetwork/articles/javase/index-jsp-138363.html

http://maven.apache.org/download.cgi

Build the Java app

cd helloworld-java-app

mvn clean install

Getting started

http://docs.ansible.com/ansible/intro_getting_started.html

Ansible Modules

http://docs.ansible.com/ansible/list_of_all_modules.html

About

The first time I a held the tutorial was at the Velocity Conference in Barcelona 2014.

I also did a talk on the same subject at DevOpsCon Berlin 2016,

and at DevOps Pro in Moscow 2016.

and at DevOpsCon in Munich 2017.

and at FOSDEM in Brussels 2018

About

Zero Downtime Deployment with Ansible - learn how to provision Linux servers with a web-proxy, a database and automate zero downtime deployment of a Java application to a load balanced environment.

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