---
- name: Something
  hosts: all
  become: false
  gather_facts: false

  vars:
    bootid_file: /proc/sys/kernel/random/boot_id
    reboot_extra_time: 120

  tasks:
    - name: Capture initial boot ID
      ansible.builtin.slurp:
        src: "{{ bootid_file }}"
      register: pre_reboot_boot_id_raw

    - name: Set pre-reboot boot ID
      ansible.builtin.set_fact:
        pre_reboot_boot_id: "{{ pre_reboot_boot_id_raw['content'] | b64decode | trim }}"

    # - name: Reboot the host
    #   ansible.builtin.reboot:
    #     reboot_timeout: 300
        # post_reboot_delay: 30
        # test_command: uptime

    - name: Reboot the host
      ansible.builtin.command:
        cmd: "/usr/sbin/shutdown -r +1 '*** ANSIBLE INITIATED REBOOT ***'"

    - name: Wait for connection
      ansible.builtin.wait_for_connection:
        connect_timeout: 20
        sleep: 10
        delay: 70
        timeout: 1800

    - name: Capture boot ID post reboot
      ansible.builtin.slurp:
        src: "{{ bootid_file }}"
      register: post_reboot_boot_id_raw

    - name: Set post-reboot boot ID
      ansible.builtin.set_fact:
        post_reboot_boot_id: "{{ post_reboot_boot_id_raw['content'] | b64decode | trim }}"

    - name: Verify reboot status of host
      block:
        - name: Assert that the system has rebooted
          ansible.builtin.assert:
            that: pre_reboot_boot_id != post_reboot_boot_id
            success_msg: "System rebooted successfully. Boot ID's differ."
            fail_msg: "System did not reboot. Boot ID's match"

      rescue:
        - name: Giving the host extra time to complete its reboot
          ansible.builtin.pause:
            seconds: "{{ reboot_extra_time }}"

        - name: Capture boot ID post reboot
          ansible.builtin.slurp:
            src: "{{ bootid_file }}"
          register: post_reboot_boot_id_raw

        - name: Set post-reboot boot ID
          ansible.builtin.set_fact:
            post_reboot_boot_id: "{{ post_reboot_boot_id_raw['content'] | b64decode | trim }}"

        - name: Assert that the system has rebooted
          ansible.builtin.assert:
            that: pre_reboot_boot_id != post_reboot_boot_id
            success_msg: "System rebooted successfully. Boot ID's differ."
            fail_msg: "System did not reboot. Boot ID's match"