- name: Start the MySQL service
  become: yes
  become_method: sudo
  service:
    name: mysql
    state: started
    enabled: true

- name: update mysql root password
  mysql_user:
    name: root
    password: "{{ mySqlRootPassword }}"
    login_user: root
    login_password: "{{ mySqlRootPassword }}"
    check_implicit_admin: yes
    priv: "*.*:ALL,GRANT"

...