Vagrant Provisioning with Ansible

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whoami ● (PHP) Developer Advocate at DigitalOcean ● Working with PHP and Linux for 10+ years ● Author of Vagrant Cookbook and phansible.com

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What to expect from this talk 1. Vagrant: quick recap 2. Ansible Overview 3. Writing Playbooks 4. Standalone Ansible

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VAGRANT: QUICK RECAP

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ANSIBLE OVERVIEW

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Ansible Overview ● Simple and Straightforward ● Human-readable automation language ● Agentless - needs only SSH ● Extensive list of built-in modules ● Used by Twitter, Atlassian, EA, Spotify, even NASA!

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Installation $ brew update $ brew install ansible $ sudo apt-add-repository -y ppa:ansible/ansible $ sudo apt-get update $ sudo apt-get install -y ansible Detailed installation instructions: do.co/ansible-docs Mac OSX Ubuntu *Windows is not officially supported as controller machine.

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A Simple Playbook # playbook.yml --- - hosts: all sudo: true tasks: - name: Update apt-cache apt: update_cache=yes - name: Install Nginx apt: pkg=nginx state=latest

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Playbook x Manifest #Ansible playbook.yml --- - hosts: all sudo: true tasks: - name: Update apt-cache apt: update_cache=yes - name: Install Nginx apt: pkg=nginx state=latest #Puppet default.pp exec { 'apt-get update': command => '/usr/bin/apt-get update' } package { 'nginx': ensure => "installed", require => Exec['apt-get update'], }

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Ansible Output

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Ansible Output (with cowsay)

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Ansible as Provisioner #Vagrantfile Vagrant.configure("2") do |config| config.vm.box = "hashicorp/precise64" config.vm.provision "ansible" do |ansible| ansible.playbook = "playbook.yml" end end

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DEMO

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WRITING PLAYBOOKS

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Variables --- - hosts: all sudo: yes vars: web_server: nginx tasks: - name: Install {{ web_server }} apt: pkg={{ web_server }} state=latest

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Facts

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Conditionals - name: "shutdown Debian flavored systems" command: /sbin/shutdown -t now when: ansible_os_family == "Debian" - name: foo is not defined fail: msg="Bailing out. this play requires 'bar'" when: bar is not defined

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Conditionals - name: Check if PHP is installed register: php_install command: php -v ignore_errors: true - name: Do something if PHP is installed debug: var=php_install when: php_install|success - name: Do something if PHP is NOT installed debug: msg='PHP is NOT installed!' when: php_install|failed

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Looping: with_items tasks: - name: Install Packages apt: pkg={{ item }} state=latest with_items: - nginx - php5-fpm - git

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Looping: with_items --- - hosts: all sudo: yes vars: sys_packages: [ 'nginx', 'php5-fpm', 'git' ] tasks: - name: Install Packages apt: pkg={{ item }} state=latest with_items: sys_packages

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Templates ServerAdmin webmaster@localhost DocumentRoot {{ doc_root }} AllowOverride All Require all granted

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Templates - Usage - name: Change default apache vhost template: src=templates/apache.tpl dest=/etc/apache2/sites-available/000-default.conf

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Handlers (services) --- - hosts: all sudo: yes vars: - doc_root: /vagrant tasks: - name: Change default apache vhost template: src=templates/apache.tpl dest=/etc/apache2/sites- available/000-default.conf notify: restart apache handlers: - name: restart apache service: name=apache2 state=restarted

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ORGANIZING PLAYBOOKS

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Including Tasks --- - hosts: all sudo: true vars: doc_root: /vagrant/web tasks: - include: tasks/init.yml - include: tasks/nginxphp.yml handlers: - name: restart nginx service: name=nginx state=restarted

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Roles . ├── playbook.yml └── roles ├── init │ └── tasks │ └── main.yml └── nginxphp ├── handlers │ └── main.yml ├── tasks │ └── main.yml └── templates └── vhost.tpl #playbook.yml --- - hosts: all sudo: true vars: doc_root: /vagrant/web roles: - init - nginxphp

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STANDALONE ANSIBLE

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Let's talk inventories! #/etc/ansible/hosts [webservers] erikaheidi.com dev-human.com [testservers] 178.62.192.53 95.85.35.248 178.62.221.111

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ad-hoc commands

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ad-hoc commands

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Running playbooks $ ansible-playbook -i staging -l webservers playbook.yml $ ansible-playbook playbook.yml --list-hosts $ ansible-playbook playbook.yml --list-tasks ansible-playbook [-i inventory] [-l group] playbook.yml

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Vagrant auto-generated inventory # Generated by Vagrant default ansible_ssh_host=127.0.0.1 ansible_ssh_port=2222 .vagrant/provisioners/ansible/inventory/vagrant_ansible_inventory

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Running Ansible on Vagrant vms $ ansible -i [inventory] --private-key=[vagrant_priv_key] -u vagrant -a "php -v" $ ansible-playbook -i [inventory] --private-key=[key] -u vagrant demo01.yml .vagrant/provisioners/ansible/inventory/vagrant_ansible_inventory .vagrant/machines/default/virtualbox/private_key

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Running Ansible on Vagrant vms

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RESOURCES

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phansible.com

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Vagrant Cookbook - Leanpub leanpub.com/vagrantcookbook/c/ssp15 Also available on Amazon (paperback)

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QUESTIONS?

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Ansible Tutorials: http://do.co/ansible Please rate this talk: https://joind.in/13459