ceph-ansible/infrastructure-playbooks/docker-to-podman.yml

---
# This playbook is intended to be used as part of the el7 to el8 OS upgrade.
# It modifies the systemd unit files so containers are launched with podman
# instead of docker after the OS reboot once it is upgraded.
# It is *not* intended to restart services since we don't want multiple services
# restarts.

- hosts:
  - mons
  - osds
  - mdss
  - rgws
  - nfss
  - rbdmirrors
  - clients
  - iscsigws
  - mgrs
  - grafana-server

  gather_facts: false
  become: True
  any_errors_fatal: true

  vars:
    delegate_facts_host: True

  pre_tasks:
    - import_tasks: "{{ playbook_dir }}/../raw_install_python.yml"

  tasks:
    - import_role:
        name: ceph-defaults

    # pre-tasks for following import -
    - name: gather facts
      setup:
        gather_subset:
          - 'all'
          - '!facter'
          - '!ohai'
      when: not delegate_facts_host | bool or inventory_hostname in groups.get(client_group_name, [])

    - name: gather and delegate facts
      setup:
        gather_subset:
          - 'all'
          - '!facter'
          - '!ohai'
      delegate_to: "{{ item }}"
      delegate_facts: True
      with_items: "{{ groups['all'] | difference(groups.get(client_group_name | default('clients'), [])) }}"
      run_once: true
      when: delegate_facts_host | bool

- hosts:
    - "{{ mon_group_name | default('mons') }}"
    - "{{ osd_group_name | default('osds') }}"
    - "{{ mds_group_name | default('mdss') }}"
    - "{{ rgw_group_name | default('rgws') }}"
    - "{{ nfs_group_name | default('nfss') }}"
    - "{{ mgr_group_name | default('mgrs') }}"
    - "{{ iscsi_gw_group_name | default('iscsigws') }}"
    - "{{ rbdmirror_group_name | default('rbdmirrors') }}"
    - "{{ grafana_server_group_name|default('grafana-server') }}"
  gather_facts: false
  become: true
  tasks:
    - import_role:
        name: ceph-defaults
    - import_role:
        name: ceph-facts
    - import_role:
        name: ceph-handler

    - name: set_fact docker2podman and container_binary
      set_fact:
        docker2podman: True
        container_binary: podman

    - name: install podman
      package:
        name: podman
        state: present
      register: result
      until: result is succeeded
      tags: with_pkg
      when: not is_atomic | bool

    - name: check podman presence # noqa : 305
      shell: command -v podman
      register: podman_presence
      changed_when: false
      failed_when: false

    - name: pulling images from docker daemon
      when: podman_presence.rc == 0
      block:
        - name: "pulling {{ ceph_docker_registry }}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }} image from docker daemon"
          command: "{{ timeout_command }} {{ container_binary }} pull docker-daemon:{{ ceph_docker_registry }}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }}"
          changed_when: false
          register: pull_image
          until: pull_image.rc == 0
          retries: "{{ docker_pull_retry }}"
          delay: 10
          when: inventory_hostname in groups.get(mon_group_name, []) or
                inventory_hostname in groups.get(osd_group_name, []) or
                inventory_hostname in groups.get(mds_group_name, []) or
                inventory_hostname in groups.get(rgw_group_name, []) or
                inventory_hostname in groups.get(mgr_group_name, []) or
                inventory_hostname in groups.get(rbdmirror_group_name, []) or
                inventory_hostname in groups.get(iscsi_gw_group_name, []) or
                inventory_hostname in groups.get(nfs_group_name, [])

        - name: "pulling alertmanager/grafana/prometheus images from docker daemon"
          command: "{{ timeout_command }} {{ container_binary }} pull docker-daemon:{{ item }}"
          changed_when: false
          register: pull_image
          until: pull_image.rc == 0
          retries: "{{ docker_pull_retry }}"
          delay: 10
          loop:
            - "{{ alertmanager_container_image }}"
            - "{{ grafana_container_image }}"
            - "{{ prometheus_container_image }}"
          when:
            - dashboard_enabled | bool
            - inventory_hostname in groups.get(grafana_server_group_name, [])

        - name: "pulling {{ node_exporter_container_image }} image from docker daemon"
          command: "{{ timeout_command }} {{ container_binary }} pull docker-daemon:{{ node_exporter_container_image }}"
          changed_when: false
          register: pull_image
          until: pull_image.rc == 0
          retries: "{{ docker_pull_retry }}"
          delay: 10
          when: dashboard_enabled | bool

    - import_role:
        name: ceph-mon
        tasks_from: systemd.yml
      when: inventory_hostname in groups.get(mon_group_name, [])

    - import_role:
        name: ceph-iscsi-gw
        tasks_from: systemd.yml
      when: inventory_hostname in groups.get(iscsi_gw_group_name, [])

    - import_role:
        name: ceph-mds
        tasks_from: systemd.yml
      when: inventory_hostname in groups.get(mds_group_name, [])

    - import_role:
        name: ceph-mgr
        tasks_from: systemd.yml
      when: inventory_hostname in groups.get(mgr_group_name, [])

    - import_role:
        name: ceph-nfs
        tasks_from: systemd.yml
      when: inventory_hostname in groups.get(nfs_group_name, [])

    - import_role:
        name: ceph-osd
        tasks_from: container_options_facts.yml
      when: inventory_hostname in groups.get(osd_group_name, [])

    - import_role:
        name: ceph-osd
        tasks_from: systemd.yml
      when: inventory_hostname in groups.get(osd_group_name, [])

    - import_role:
        name: ceph-rbd-mirror
        tasks_from: systemd.yml
      when: inventory_hostname in groups.get(rbdmirror_group_name, [])

    - import_role:
        name: ceph-rgw
        tasks_from: systemd.yml
      when: inventory_hostname in groups.get(rgw_group_name, [])

    - import_role:
        name: ceph-crash
        tasks_from: systemd.yml
      when: inventory_hostname in groups.get(mon_group_name, []) or
            inventory_hostname in groups.get(osd_group_name, []) or
            inventory_hostname in groups.get(mds_group_name, []) or
            inventory_hostname in groups.get(rgw_group_name, []) or
            inventory_hostname in groups.get(mgr_group_name, []) or
            inventory_hostname in groups.get(rbdmirror_group_name, [])

    - name: dashboard configuration
      when: dashboard_enabled | bool
      block:
        - import_role:
            name: ceph-node-exporter
            tasks_from: systemd.yml

        - import_role:
            name: ceph-facts
            tasks_from: grafana.yml
          when: inventory_hostname in groups.get(grafana_server_group_name, [])

        - import_role:
            name: ceph-grafana
            tasks_from: systemd.yml
          when: inventory_hostname in groups.get(grafana_server_group_name, [])

        - import_role:
            name: ceph-prometheus
            tasks_from: systemd.yml
          when: inventory_hostname in groups.get(grafana_server_group_name, [])

    - name: reload systemd daemon
      systemd:
        daemon_reload: yes