Portable Development Environments with Vagrant and Ansible

Slides for my talk "Portable Development Environments with Vagrant Ansible", as presented at DayCamp4Developers 2014

Transcript

2. whoami • Brazilian, living in Amsterdam since 2012 • PHP developer with sysadmin background | devop • Author of Vagrant Cookbook on LeanPub and phansible.com
3. What to expect from this talk 1)Quick Vagrant overview 2)Provisioning with Ansible 3)Quickly getting started with Phansible (demo)
5. Why Vagrant? • Reproducible and portable development environment • Enables easier code collaboration • Backend env tests / benchmark • Automation Tools learning and testing
6. Important Terms • Host and Guest • Provider • Provisioner • Vagrantfile
9. 1.1 Ansible Overview • Simple and Powerful • Tasks defined with YAML • Sequential Execution • Modules Directory: Ansible Galaxy • Requires installation of Ansible in the Host
10. 1.2 Vagrantfile Vagrant.configure("2") do |config| config.vm.box = "hashicorp/precise64" config.vm.provision "ansible" do |ansible| ansible.playbook = "playbook.yml" end end
11. 1.3 The Playbook # playbook.yml --- - hosts: all sudo: true tasks: - name: Update apt-cache apt: update_cache=yes - name: Install Nginx apt: pkg=nginx state=latest
12. 1.4 Playbook x Manifest #playbook.yml --- - hosts: all sudo: true tasks: - name: Update apt-cache apt: update_cache=yes - name: Install Nginx apt: pkg=nginx state=latest #default.pp exec { 'apt-get update': command => '/usr/bin/apt-get update' } package { 'nginx': ensure => "installed", require => Exec['apt-get update'], }
13. DEMO 1 basic playbook
14. Writing Playbooks
15. 2.1 Variables --- - hosts: all sudo: yes vars: web_server: nginx tasks: - name: Install {{ web_server }} apt: pkg={{ web_server }} state=latest
16. 2.1 Variables - arrays tasks: - name: Install Packages apt: pkg={{ item }} state=latest with_items: - nginx - php5-fpm - git
17. 2.1 Variables - arrays --- - hosts: all sudo: yes vars: sys_packages: [ 'nginx', 'php5-fpm', 'git' ] tasks: - name: Install Packages apt: pkg={{ item }} state=latest with_items: sys_packages
18. 2.1 Variables - facts • Information discovered from systems • Globally available • Example: ansible_eth0.ipv4.address "ansible_eth0": { "active": true, "device": "eth0", "ipv4": { "address": "162.243.203.85", "netmask": "255.255.255.0", "network": "162.243.203.0" }, "ipv6": [ { "address": "fe80::601:23ff:fe9c:8a01", "prefix": "64", "scope": "link" } ], "macaddress": "04:01:23:9c:8a:01", "mtu": 1500, "promisc": false, "type": "ether" },
19. 2.2 Templates <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot {{ doc_root }} <Directory {{ doc_root }}> AllowOverride All Require all granted </Directory> </VirtualHost>
20. 2.2 Templates - Usage - name: Change default apache vhost template: src=templates/apache.tpl dest=/etc/apache2/sites-available/000-default.conf
21. 2.3 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
22. DEMO 2 Variables, templates, handlers
23. 2.2 Templates <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot {{ doc_root }} <Directory {{ doc_root }}> AllowOverride All Require all granted </Directory> </VirtualHost>
24. Organization
25. 3.1 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
26. 3.2 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
30. DEMO 3 phansible
31. Vagrant Cookbook Get a special discount with this coupon http://bit.ly/vc-dc4devs
32. Questions?
33. erikaheidi.com/vagrant https://joind.in/1166 3