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

---
- name: check if the device is a partition
  shell: "readlink -f {{ item }} | egrep '/dev/([hsv]d[a-z]{1,2}|cciss/c[0-9]d[0-9]p|nvme[0-9]n[0-9]p)[0-9]{1,2}$'"
  with_items: "{{ devices }}"
  changed_when: false
  failed_when: false
  register: ispartition_results

- name: check the partition status of the osd disks
  shell: "parted --script {{ item }} print > /dev/null 2>&1"
  with_items: "{{ devices }}"
  changed_when: false
  failed_when: false
  register: osd_partition_status_results

# NOTE: The following calls to sgdisk are retried because sgdisk is known to
# fully wipe a device the first time around. There is no need to halt execution
# of zapping the whole device so these try again. It is easier to use `||` to
# keep the current flow of the task.
# See: https://github.com/ceph/ceph-ansible/issues/759
- name: fix partitions gpt header or labels of the osd disks
  shell: "sgdisk --zap-all --clear --mbrtogpt -- {{ item.1 }} || sgdisk --zap-all --clear --mbrtogpt -- {{ item.1 }}"
  with_together:
    - "{{ osd_partition_status_results.results }}"
    - "{{ devices }}"
  changed_when: false
  when: item.0.rc != 0

- name: check if a partition named 'ceph' exists
  shell: "parted --script {{ item }} print | egrep -sq '^ 1.*ceph'"
  with_items: "{{ devices }}"
  changed_when: false
  failed_when: false
  register: parted_results