---
- name: Ensure required parameters are in /boot/firmware/cmdline.txt
  hosts: all
  become: yes
  tasks:
    - name: Append kernel parameters to cmdline.txt if not present
      lineinfile:
        path: /boot/firmware/cmdline.txt
        line: "cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory"
        insertafter: EOF
        state: present
        create: yes
        backup: yes  # This creates a backup of the file before making changes
      notify:
        - Reboot system

  handlers:
    - name: Reboot system
      reboot:
        msg: "Rebooting system to apply new kernel parameters"
        reboot_timeout: 600
        test_command: uptime