Ansible get and use MySQL root password

# cat /root/.my.cnf
[client]
user=root
password=verySecretPassword

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# stat /root/.my.cnf
  File: ‘/root/.my.cnf’
  Size: 49              Blocks: 8          IO Block: 4096   regular file
Device: fd01h/64769d    Inode: 9017        Links: 1
Access: (0600/-rw-------)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2016-08-18 10:45:46.610721444 +0200
Modify: 2016-08-18 09:38:42.165106840 +0200
Change: 2016-08-18 10:45:32.478718044 +0200
 Birth: -

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# cat /etc/ansible/roles/backup-jobs/tasks/database_backups.yml
[...]

- name: Saving MySQL root password to variable
  shell: grep password /root/.my.cnf | cut -d "=" -f 2
  register: mysql_root_password
  no_log: True

- name: Setting MySQL root password in automysqlbackup configuration file
  replace: dest={{ item }} regexp=PASSWORD replace={{ mysql_root_password.stdout }}
  with_items:
       - '/etc/automysqlbackup/myserver.conf'
  no_log: True

[...]

----------

# cat /etc/ansible/playbooks/groups/backups.yml
- hosts: all
  become: yes
  roles:
     - backup-jobs
[...]