ceph-ansible/roles/ceph-osd/tasks/start_osds.yml

---
- block:
  # For openstack VMs modify the mount point below depending on if the Openstack
  # VM deploy tool defaults to mounting ephemeral disks
  - name: umount ceph disk (if on openstack)
    mount:
      name: /mnt
      src: /dev/vdb
      fstype: ext3
      state: unmounted
    when:
      - ceph_docker_on_openstack

  - name: with non lvm scenario
    when: osd_scenario != 'lvm'
    block:
      - name: test if the container image has directory {{ container_bin_path }}
        command: "docker run --rm --entrypoint=test {{ ceph_docker_registry }}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }} -d {{ container_bin_path }}"
        changed_when: false
        failed_when: false
        register: test_container_bin_path

      - name: test if the container image has the disk_list function
        command: "docker run --rm --entrypoint=stat {{ ceph_docker_registry }}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }} {{ container_bin_path + '/disk_list.sh' if test_container_bin_path.rc == 0 else 'disk_list.sh' }}"
        changed_when: false
        failed_when: false
        register: disk_list

      - name: test activated ceph-disk osds
        shell: |
          ls /var/lib/ceph/osd/ | sed 's/.*-//'          
        register: activated_osds

      - name: activate containerized osd(s)
        shell: |
          DOCKER_ENV=$(docker run --rm --net=host --ulimit nofile=1024:1024 \
          --privileged=true -v /dev/:/dev/ -v /etc/ceph:/etc/ceph:z \
          -e CLUSTER={{ cluster }} -e OSD_DEVICE={{ item }} \
          {{ ceph_docker_registry }}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }} \
          disk_list)
          docker run --rm --net=host \
          --ulimit nofile=1024:1024 \
          --ipc=host --pid=host --privileged=true \
          -v /etc/ceph:/etc/ceph:z \
          -v /var/lib/ceph/:/var/lib/ceph/:z \
          -v /dev:/dev \
          -v /etc/localtime:/etc/localtime:ro \
          -e DEBUG=verbose \
          -e CLUSTER={{ cluster }} \
          -e CEPH_DAEMON=OSD_CEPH_DISK_ACTIVATE_ONLY \
          -e OSD_DEVICE={{ item }} \
          ${DOCKER_ENV} \
          {{ docker_env_args }} \
          {{ ceph_osd_docker_prepare_env }} \
          {{ ceph_docker_registry }}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }}          
        with_items: "{{ devices }}"
        when:
          - devices is defined
          - devices | length > activated_osds.stdout_lines | length

  - name: generate ceph osd docker run script
    become: true
    template:
      src: "{{ role_path }}/templates/ceph-osd-run.sh.j2"
      dest: "{{ ceph_osd_docker_run_script_path }}/ceph-osd-run.sh"
      owner: "root"
      group: "root"
      mode: "0744"
    notify:
      - restart ceph osds
  when:
    - containerized_deployment

# this is for ceph-disk, the ceph-disk command is gone so we have to list /var/lib/ceph
- name: get osd ids
  shell: |
    ls /var/lib/ceph/osd/ | sed 's/.*-//'    
  register: ceph_disk_osd_ids
  when: osd_scenario != 'lvm'

- name: set_fact docker_exec_start_osd
  set_fact:
    docker_exec_start_osd: "{{ 'docker run --rm --ulimit nofile=1024:1024 --privileged=true -v /run/lvm/lvmetad.socket:/run/lvm/lvmetad.socket -v /var/run/udev/:/var/run/udev/:z -v /etc/ceph:/etc/ceph:z -v /dev:/dev --entrypoint=ceph-volume ' + ceph_docker_registry + '/' + ceph_docker_image + ':' + ceph_docker_image_tag if containerized_deployment else 'ceph-volume' }}"
  when: osd_scenario == 'lvm'

- name: collect osd ids
  shell: >
    {{ docker_exec_start_osd }} lvm list --format json    
  changed_when: false
  failed_when: false
  register: ceph_volume_osd_ids
  when: osd_scenario == 'lvm'

- name: generate systemd unit file
  become: true
  template:
    src: "{{ role_path }}/templates/ceph-osd.service.j2"
    dest: /etc/systemd/system/ceph-osd@.service
    owner: "root"
    group: "root"
    mode: "0644"
  notify:
    - restart ceph osds
  when:
    - containerized_deployment

- name: device to ID migration
  when:
    - containerized_deployment | bool
    - osd_scenario != 'lvm'
  block:
    - name: check ceph-osd service using device name
      shell: |
        systemctl list-units | grep -E "loaded * active" | grep -coE "ceph-osd@([a-z]+|nvme[0-9]+n[0-9]+).service"        
      register: ceph_osd_device_name
      changed_when: false
      failed_when: false

    - name: copy systemd-device-to-id.sh script
      template:
        src: systemd-device-to-id.sh.j2
        dest: /tmp/systemd-device-to-id.sh
        owner: root
        group: root
        mode: 0750
      when: ceph_osd_device_name.stdout|int != 0

    - name: run the systemd-device-to-id.sh script
      command: /usr/bin/env bash /tmp/systemd-device-to-id.sh
      when: ceph_osd_device_name.stdout|int != 0
      with_items: "{{ groups[osd_group_name] }}"
      delegate_to: "{{ item }}"
      run_once: true

- name: systemd start osd
  systemd:
    name: ceph-osd@{{ item }}
    state: started
    enabled: yes
    daemon_reload: yes
  with_items: "{{ ((ceph_volume_osd_ids.stdout | from_json).keys() | list) if osd_scenario == 'lvm' else ceph_disk_osd_ids.stdout_lines }}"

- name: ensure systemd service override directory exists
  file:
    state: directory
    path: "/etc/systemd/system/ceph-osd@.service.d/"
  when:
    - ceph_osd_systemd_overrides is defined
    - ansible_service_mgr == 'systemd'

- name: add ceph-osd systemd service overrides
  config_template:
    src: "ceph-osd.service.d-overrides.j2"
    dest: "/etc/systemd/system/ceph-osd@.service.d/ceph-osd-systemd-overrides.conf"
    config_overrides: "{{ ceph_osd_systemd_overrides | default({}) }}"
    config_type: "ini"
  when:
    - ceph_osd_systemd_overrides is defined
    - ansible_service_mgr == 'systemd'