DevOps/Ansible/Playbooks

Ansible playbooks^[1] are written in YAML text files and define actions to execute against host/devices, check official Ansible playbook introduction: https://docs.ansible.com/ansible/devel/user_guide/playbooks_intro.html

Task definitions or Playbooks edit

Task definitions are defined in text files, called playbooks in Ansible terminology, in YAML format. Execution of task definitions or playbooks are make using ansible-playbook command followed by your desired playbook to execute. Playbooks can also use Jinja templates to enable dynamic expressions and access to variables^[2].

Ansible Playbook execution:

ansible-playbook my_new_created_playbook.yml
ansible-playbook my_new_created_playbook.yml -f 10 -f 10 parallelize 10 executions

-f forks

Create "Executable" Playbooks edit

Add the following line #!/usr/bin/env ansible-playbook at the beginning of your playbooks and make it executable chmod +x /path/to/your/playbook.yml to execute without calling ansible-playbook binary.

Ansible Playbooks Examples edit

Create a new file touch /tmp/test_file.txt, REMOTE_SERVER should be already present in your Ansible inventory:/etc/ansible/host

Playbook using module file^[3]:

- hosts: REMOTE_SERVER_HOSTNAME
  tasks:
  - name: Ansible create a new file called test_fle.txt in /tmp directory
    file:
      path: "/tmp/test_file.txt"
      state: touch

Important Note: dash symbol (-) and indentation has to be properly formatted.

Variables edit

You can use variables in your playbooks, check official documentation for further information: https://docs.ansible.com/ansible/devel/user_guide/playbooks_variables.html

Activities edit

Read Ansible introduction to playbooks: https://docs.ansible.com/ansible/devel/user_guide/playbooks_intro.html