ansible/utils/reboot.yml

---
- name: reboot nodes
  hosts: docker_cluster
  become_method: sudo
  become_user: root
  become: yes
  serial: 1

  tasks:
    - name: drain docker swarm
      shell:
        cmd: |
          docker node update {{ ansible_hostname }} --availability drain
          sleep 30

    - name: reboot
      reboot:
        msg: "Rebooting"
        connect_timeout: 5
        reboot_timeout: 600
        pre_reboot_delay: 0
        post_reboot_delay: 30
        test_command: whoami

    - name: update datetime via ntpdate
      shell:
        cmd: |
          ntpdate 192.168.50.3
      args:
        executable: /bin/bash

    - name: drain docker swarm
      shell:
        cmd: |
          docker node update {{ ansible_hostname }} --availability active
          sleep 30