DevOps Classroomnotes 23/Jan/2023

Ansible Roles

• Ansible Roles help in creating re-usable ansible assets.
• Ansible has huge collection of community roles developed and hosted in Ansible Galaxy Refer Here
• We can create our own custom ansible roles.

using existing Ansible role from Ansible Galaxy

• Lets use a role to install mysql Refer Here
• Refer Here for the usage of role to install mysql
• Lets try to syntax check the playbook
  
• The above error indicates that the role is not downloaded into the ansible control node from ansible galaxy
• Lets download the role using command ansible-galaxy install geerlingguy.mysql
• To summarize the steps are
  • Create a playbook with roles
    “`

  </ul>
  <hr />
  <ul>
  <li>name: test
  roles:<ul>
  <li>role: <name of role>
  become: <yes|no>
  “`

• Ensure role is downloaded ansible-galaxy install <role> if it is from ansible galaxy or ensure the role is present in
  • current_dir/roles/<role-name>
  • ~/.ansible/roles/<role-name>
  • /etc/ansible/roles
• Now syntax check the execution of ansible playbook
• run the playbook which will call role and role does the execution which leads to a desired state.