How to wait for server restart using Ansible?

Question

I\'m trying to restart the server and then wait, using this:

- name: Restart server
  shell: reboot

- name: Wait for server to restart
  wait_for:
    port=         


        

Answer 1

2018 Update

As of 2.3, Ansible now ships with the wait_for_connection module, which can be used for exactly this purpose.

#
## Reboot
#

- name: (reboot) Reboot triggered
  command: /sbin/shutdown -r +1 "Ansible-triggered Reboot"
  async: 0
  poll: 0

- name: (reboot) Wait for server to restart
  wait_for_connection:
    delay: 75

The shutdown -r +1 prevents a return code of 1 to be returned and have ansible fail the task. The shutdown is run as an async task, so we have to delay the wait_for_connection task at least 60 seconds. 75 gives us a buffer for those snowflake cases.

wait_for_connection - Waits until remote system is reachable/usable