ceph-ansible/roles/ceph-validate/tasks/check_devices.yml

---
- name: set_fact root_device
  set_fact:
    root_device: "{{ ansible_facts['mounts'] | selectattr('mount', 'match', '^/$') | map(attribute='device') | first }}"

- name: lvm_volumes variable's tasks related
  when:
    - lvm_volumes is defined
    - lvm_volumes | length > 0
  block:
    - name: resolve devices in lvm_volumes
      command: "readlink -f {{ item.data }}"
      changed_when: false
      register: _lvm_volumes_data_devices
      with_items: "{{ lvm_volumes }}"
      when: item.data_vg is undefined

    - name: set_fact lvm_volumes_data_devices
      set_fact:
        lvm_volumes_data_devices: "{{ lvm_volumes_data_devices | default([]) + [item.stdout] }}"
      with_items: "{{ _lvm_volumes_data_devices.results }}"
      when: item.skipped is undefined

- name: fail if root_device is passed in lvm_volumes or devices
  fail:
    msg: "{{ root_device }} found in either lvm_volumes or devices variable"
  when: root_device in lvm_volumes_data_devices | default([]) or root_device in devices | default([])

- name: check devices are block devices
  block:
    - name: get devices information
      parted:
        device: "{{ item }}"
        unit: MiB
      register: devices_parted
      failed_when: False
      with_items:
        - "{{ devices | default([]) }}"
        - "{{ dedicated_devices | default([]) }}"
        - "{{ bluestore_wal_devices | default([]) }}"
        - "{{ lvm_volumes_data_devices | default([]) }}"

    - name: fail if one of the devices is not a device
      fail:
        msg: "{{ item.item }} is not a block special file!"
      when: item.rc is defined
      with_items: "{{ devices_parted.results }}"

    - name: fail when gpt header found on osd devices
      fail:
        msg: "{{ item.disk.dev }} has gpt header, please remove it."
      with_items: "{{ devices_parted.results }}"
      when:
        - item.skipped is undefined
        - item.disk.table == 'gpt'
        - item.partitions | length == 0

- name: check logical volume in lvm_volumes
  when: lvm_volumes is defined
  block:
    - name: check data logical volume
      stat:
        path: "/dev/{{ item.data_vg }}/{{ item.data }}"
        follow: true
      register: lvm_volumes_data
      loop: "{{ lvm_volumes }}"
      when:
        - item.data is defined
        - item.data_vg is defined

    - name: fail if one of the data logical volume is not a device or doesn't exist
      fail:
        msg: "{{ item.item.data_vg }}/{{ item.item.data }} doesn't exist or isn't a block"
      loop: "{{ lvm_volumes_data.results }}"
      when:
        - item.skipped is undefined
        - not item.stat.exists | bool or not item.stat.isblk | bool

    - name: check bluestore db logical volume
      stat:
        path: "/dev/{{ item.db_vg }}/{{ item.db }}"
        follow: true
      register: lvm_volumes_db
      loop: "{{ lvm_volumes }}"
      when:
        - osd_objectstore == 'bluestore'
        - item.db is defined
        - item.db_vg is defined

    - name: fail if one of the bluestore db logical volume is not a device or doesn't exist
      fail:
        msg: "{{ item.item.db_vg }}/{{ item.item.db }} doesn't exist or isn't a block"
      loop: "{{ lvm_volumes_db.results }}"
      when:
        - item.skipped is undefined
        - not item.stat.exists | bool or not item.stat.isblk | bool

    - name: check bluestore wal logical volume
      stat:
        path: "/dev/{{ item.wal_vg }}/{{ item.wal }}"
        follow: true
      register: lvm_volumes_wal
      loop: "{{ lvm_volumes }}"
      when:
        - osd_objectstore == 'bluestore'
        - item.wal is defined
        - item.wal_vg is defined

    - name: fail if one of the bluestore wal logical volume is not a device or doesn't exist
      fail:
        msg: "{{ item.item.wal_vg }}/{{ item.item.wal }} doesn't exist or isn't a block"
      loop: "{{ lvm_volumes_wal.results }}"
      when:
        - item.skipped is undefined
        - not item.stat.exists | bool or not item.stat.isblk | bool