Reboot and wait for reboot to complete in Ansible playbook

---
- name: Do something that requires a reboot when it results in a change.
  ...
  register: task_result

- name: Reboot immediately if there was a change.
  shell: "sleep 5 && reboot"
  async: 1
  poll: 0
  when: task_result is changed

- name: Wait for the reboot to complete if there was a change.
  wait_for_connection:
    connect_timeout: 20
    sleep: 5
    delay: 5
    timeout: 300
  when: task_result is changed

...

One thought on “Reboot and wait for reboot to complete in Ansible playbook”

1. 
   While looks good, I am using a bit more extended version:

   – pause:
   prompt: Should we reboot? Press ‘y’ to allow
   register: state_user_prompt
   when: not reboot_allowed

   – name: Reboot the system
   shell: sleep 2 && shutdown -r now “Ansible triggered reboot”
   async: 1
   poll: 0
   ignore_errors: true
   when: reboot_allowed or (state_user_prompt and state_user_prompt.user_input == ‘y’)

   – name: Wait for system to come back
   wait_for_connection:
   delay: 15
   timeout: 300
   when: reboot_allowed or (state_user_prompt and state_user_prompt.user_input == ‘y’)

   First of all I have an inventory var “reboot_allowed” which is false by default, so that I don’t accidentally reboot something I don’t need. But during the run, if reboot is disabled, ansible will interactivly prompt me if I still want to do it.

   The second difference is that instead of plain “reboot” command, I am using “shutdown -r now” with a comment, that you can then see in the logs :-)

   Reply