ansible/examples/playbooks/ansible_pull.yml

# ansibple-pull setup 
#
# on remote hosts, set up ansible to run periodically using the latest code
# from a particular checkout, in pull based fashion, inverting Ansible's
# usual push-based operating mode.  
#
# This particular pull based mode is ideal for:
#
# (A) massive scale out
# (B) continual system remediation
#
# DO NOT RUN THIS AGAINST YOUR HOSTS WITHOUT CHANGING THE repo_url


# FIXME: change the host group for safety

---
- hosts: all
  user: root

  vars:

    # schdule is fed directly to cron
    schedule: '*/15 * * * *'

    # User to run ansible-pull as from cron
    cron_user: root

    # Directory to where repository will be cloned
    workdir: /var/lib/ansible/local

    # Repository to check out -- YOU WANT TO CHANGE THIS
    #repo_url: git://github.com/sfromm/ansible-playbooks.git
    repo_url: git://github.com/mdehaan/ansible-examples.git

  tasks:

    - name: Install ansible
      action: yum pkg=ansible state=installed

    - name: Create local directory to work from
      action: file path=$workdir state=directory owner=root group=root mode=0751

    - name: Copy ansible inventory file to client
      action: copy src=/etc/ansible/hosts dest=/etc/ansible/hosts
              owner=root group=root mode=0644

    - name: Create crontab entry to clone/pull git repository
      action: template src=templates/ansible-pull.j2 dest=/etc/cron.d/ansible-pull owner=root group=root mode=0644