---

- name: Check if cgroup memory and swapaccount in kernel
  shell: grep GRUB_CMDLINE_LINUX_DEFAULT /etc/default/grub | grep -c "cgroup_enable=memory swapaccount=1"
  register: cgroup_status
  ignore_errors: true

- name: Enable cgroup memory and swapaccount
  lineinfile: dest="/etc/default/grub" regexp='GRUB_CMDLINE_LINUX_DEFAULT="(.*)"' line='GRUB_CMDLINE_LINUX_DEFAULT="\1 cgroup_enable=memory swapaccount=1"' backrefs=yes
  when: cgroup_status.stdout == "0"

- name: update-grub
  shell: update-grub2
  when: cgroup_status.stdout == "0"

- name: reboot if we need it
  shell: sleep 2 && shutdown -r now "Ansible updates triggered"
  async: 1 
  poll: 0
  ignore_errors: true
  when: cgroup_status.stdout == "0"

- name: waiting for server to come back
  local_action: wait_for host={{ansible_fqdn}} state=started timeout=600 delay=15
  sudo: false
  when: cgroup_status.stdout == "0"