Ansible yml playbook to change all the hosts present in servers to /22

changemask

 - hosts:
    servers
   user: user
   sudo: yes
   port: 2020
   gather_facts: false
   tasks:
    - name: Change subnet into /22 
      lineinfile: dest=/etc/network/interfaces regexp='netmask 255.255.254.0' line='netmask 255.255.252.0'
    - name: Restarting networking service
      command: /etc/init.d/networking restart