How to handle network changes and restart with Ansible?

While very close to the question listed by https://serverfault.com/users/378597/peter-zhabin uses win_shell, which is not applicable to Linux.

Off the top of my head it seems like this would be the solution under Linux, changing win_shell for shell, although I slightly modified the suggestion so it aligns more closely to bash shell in Linux.

1. Use async and poll for the network restart task.
2. Then set_fact to update the nodes IP.
3. Next wait until the ssh port responds on the new IP.
4. Finally continue on with any remaining tasks.

  - name: Async restart of networking.service 
    shell: "sleep 1; systemctl restart networking.service &"
    args:
      executable: /bin/bash
    async: 100
    poll: 0
    
  - name: set_fact for the nodes new IP
    set_fact:
      ansible_host: "10.0.0.50"

  - name: wait_for ssh port access
    local_action:
      module: wait_for
      host: "{{ ansible_host }}"
      port: 22
      delay: 60
      state: started
    register: network_responding

Then add another task to the playbook after registering the wait_result and that task can have a conditional when clause like:

when: network_responding|bool == true

I converted the restart to shell with bash, backgrounding the restart operation. This may not be needed but YMMV trying to use the same logic with ansible.builtin.service, testing should be pretty simple to compare if doing this without shell is also viable.