ansible/T4/guided/control-handlers/configure_db.yml

---
- name: Installing MariaDB server
  hosts: databases
  vars:
    db_packages:
      - mariadb-server
      - python3-PyMySQL
    db_service: mariadb
    resources_url: http://materials.example.com/labs/control-handlers
    config_file_url: "{{ resources_url }}/my.cnf.standard"
    config_file_dst: /etc/my.cnf
  tasks:
    - name: "{{ db_packages }} packages are installed"
      yum:
        name: "{{ db_packages }}"
        state: present
      notify:
        - set db password
    - name: Make sure the database service is running
      service:
        name: "{{ db_service }}"
        state: started
        enabled: true
    - name: "The {{ config_file_dst }} file has been installed"
      get_url:
        url: "{{ config_file_url }}"
        dest: "{{ config_file_dst }}"
        owner: mysql
        group: mysql
        force: yes
      notify:
        - restart db service
  handlers:
    - name: restart db service
      service: 
        name: "{{ db_service }}"
        state: restarted
    - name: set db password
      mysql_user:
        name: root
        password: redhat