roles/reboot/tasks/main.yml

# Copyright (c) 2023 VEXXHOST, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

- name: Install package for "community.general.pids"
  ansible.builtin.package:
    name: python3-psutil

# NOTE(mnaser): These are all processes that we do not currently have a way to
#               safely evacuate *yet*.  We should remove these as we add ways
#               to evacuate them.
- name: Get process IDs for critical services
  community.general.pids:
    pattern: "{{ item }}"
  loop:
    - ceph-mgr
    - ceph-mon
    - ceph-osd
    - mysqld
    - neutron-l3-agent
    - qemu
    - rabbitmq-server
    - radosgw
  register: _reboots_pids

- name: Assert that none of these processes are running
  ansible.builtin.assert:
    quiet: true
    that:
      - item.pids | length == 0
    fail_msg: >-
      The following processes are running: {{ item.item }} ({{ item.pids | join(', ') }})
  loop: "{{ _reboots_pids.results }}"
  loop_control:
    label: "{{ item.item }}"

- name: Create a silence and reboot the host
  block:
    # TODO(mnaser): Create a silence inside AlertManager
    - name: Reboot the host
      ansible.builtin.reboot:
  always: []
    # TODO(mnaser): Remove the silence from AlertManager