Playbooks

Playbooks are the main configuration files in Ansible. They describe the complete system deployment plan. Playbooks are composed of a series of tasks and are executed from top to bottom. The tasks themselves refer to group of hosts that must be deployed with roles. Ansible playbooks are written in YAML.

The following is an example of a simple Ansible playbook:

--- 
- hosts: webservers 
  vars: 
    http_port: 8080 
  remote_user: root 
  tasks: 
  - name: ensure apache is at the latest version 
    yum: name=httpd state=latest 
  - name: write the apache config file 
    template: src=/srv/httpd.j2 dest=/etc/httpd.conf 
    notify: 
  - restart apache 
  handlers: 
  - name: restart apache 
    service: name=httpd state=restarted