---

# manage swap
- name: "manage swap"
  tags: ["swap"]
  block:

    # enable or disable swap
    - name: "swap - set variable"
      ansible.builtin.set_fact:
        __swap: "{{ swap | default('true') }}"

    # verify swapfile
    - name: "swap - verify swapfile"
      ansible.builtin.stat:
        path: "{{ swap_file_location | default('/swapfile') }}"
      register: "swap_file_check"

    ## create swap
    # create swap file
    - name: "swap - create swap file"
      ansible.builtin.command: "fallocate -l {{ swap_file_size }} {{ swap_file_location }}"
      when: "not swap_file_check.stat.exists and __swap"

    # set swap file permissions
    - name: "swap - set permissions "
      ansible.builtin.file:
        path: "{{ swap_file_location }}"
        owner: "root"
        group: "root"
        mode: "0600"
      when: "__swap"

    # 'format' swapfile
    - name: "swap - format swap file"
      ansible.builtin.command: "mkswap {{ swap_file_location }}"
      when: "not swap_file_check.stat.exists and __swap"

    # configure fstab
    - name: "swap - configure fstab"
      ansible.posix.mount:
        name: "swapfile"
        src: "{{ swap_file_location | default('/swapfile') }}"
        fstype: "swap"
        opts: "sw"
        passno: "0"
        dump: "0"
        state: "present"
      when: "__swap"

    # enable swap
    - name: "swap - enable swap"
      ansible.builtin.command: "swapon -a"
      when: "not swap_file_check.stat.exists and __swap"

    ## delete swap
    # disable swap
    - name: "swap - disable swap"
      ansible.builtin.command: "swapoff -a"
      when: "swap_file_check.stat.exists and not __swap"

    # delete swap file
    - name: "swap - delete swap file"
      ansible.builtin.file:
        path: "{{ swap_file_location }}"
        state: "absent"
      when: "swap_file_check.stat.exists and not __swap"

    # configure fstab
    - name: "swap - configure fstab"
      ansible.posix.mount:
        name: "swapfile"
        src: "{{ swap_file_location | default('/swapfile') }}"
        fstype: "swap"
        opts: "sw"
        passno: "0"
        dump: "0"
        state: "absent"
      when: "not __swap"