---
- name: Enable cgroup via boot commandline if not already enabled
  ansible.builtin.replace:
    path: /boot/boot.txt
    regexp: '^(setenv bootargs console=ttyS1,115200 console=tty0 root=PARTUUID=\${uuid} rw rootwait smsc95xx.macaddr="\${usbethaddr}"(?!.*\b{{ cgroup_item }}\b).*)$'
    replace: '\1 {{ cgroup_item }}'
  with_items:
    - "cgroup_enable=cpuset"
    - "cgroup_memory=1"
    - "cgroup_enable=memory"
  loop_control:
    loop_var: cgroup_item
  notify: Regenerate bootloader image