- name: Does systemd-udevd.service exist
  stat: path="{{ systemd_location }}/systemd-udevd.service"
  register: udev_unit

- name: Copy udevd service to /etc/systemd/system to modify
  copy: src={{ systemd_location }}/systemd-udevd.service
        dest=/etc/systemd/system/systemd-udevd.service
        owner=root
        group=root
        mode=0644
  when: udev_unit.stat.exists is defined and udev_unit.stat.exists

- name: Change MountFlags from slave to shared
  lineinfile: backup=no
              dest=/etc/systemd/system/systemd-udevd.service
              regexp='^MountFlags'
              line='MountFlags=shared'
              state=present
  when: udev_unit.stat.exists is defined and udev_unit.stat.exists

- name: Ask systemd to recognize the changes
  systemd: name=systemd-udevd 
           daemon-reload=True
           state=restarted
  when: udev_unit.stat.exists is defined and udev_unit.stat.exists