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

---
- name: devices validation
  when: devices is defined
  block:
    - name: read information about the devices
      parted:
        device: "{{ item }}"
        unit: MiB
      register: parted_results
      with_items: "{{ devices }}"

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

    - name: get devices information
      parted:
        device: "{{ item }}"
        unit: MiB
      register: devices_parted
      failed_when: False
      with_items: "{{ devices }}"

    - 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 }}"