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

---
# NOTE (leseb): current behavior of ceph-disk is to fail when the device is mounted "stderr: ceph-disk: Error: Device is mounted: /dev/sdb1"
# the return code is 1, which makes sense, however ideally if ceph-disk will detect a ceph partition
# it should exist we rc=0 and don't do anything unless we do something like --force
# As as a final word, I prefer to keep the partition check instead of running ceph-disk prepare with "failed_when: false"
# I believe it's safer
#
# regex syntax uses (pat1|pat2|...|patN) for different families of device
# names, but has a common expression for partition number at the end.
# allow 2-digit partition numbers so fast SSDs can be shared by > 9 disks
# for SSD journals.

- name: resolve dedicated device link(s)
  command: readlink -f {{ item }}
  changed_when: false
  with_items: "{{ dedicated_devices }}"
  register: dedicated_devices_prepare_canonicalize
  when:
    - osd_scenario == 'non-collocated'

- name: set_fact build dedicated_devices from resolved symlinks
  set_fact:
    dedicated_devices_tmp: "{{ dedicated_devices_tmp | default([]) + [ item.stdout ] }}"
  with_items: "{{ dedicated_devices_prepare_canonicalize.results }}"
  when:
    - osd_scenario == 'non-collocated'

- name: set_fact build final dedicated_devices list
  set_fact:
    dedicated_devices: "{{ dedicated_devices_tmp | reject('search','/dev/disk') | list }}"
  when:
    - osd_scenario == 'non-collocated'

- name: include check_devices_static.yml
  include: check_devices_static.yml
  # Hard code this so we will skip the entire file instead of individual tasks (Default isn't Consistent)
  static: False

- name: check the partition status of the journal devices
  command: "parted --script {{ item }} print"
  with_items:
    - "{{ dedicated_devices|unique }}"
  changed_when: false
  failed_when: false
  always_run: true
  register: journal_partition_status
  when:
    - osd_scenario == 'non-collocated'

- name: fix partitions gpt header or labels of the journal device(s)
  shell: "sgdisk --zap-all --clear --mbrtogpt -- {{ item.1 }} || sgdisk --zap-all --clear --mbrtogpt -- {{ item.1 }}"
  with_together:
    - "{{ journal_partition_status.results }}"
    - "{{ dedicated_devices|unique }}"
  changed_when: false
  when:
    - not containerized_deployment
    - osd_scenario == 'non-collocated'
    - not item.0.get("skipped")
    - item.0.get("rc", 0) != 0

- name: create gpt disk label of the journal device(s)
  command: parted --script {{ item.1 }} mklabel gpt
  with_together:
    - "{{ journal_partition_status.results }}"
    - "{{ dedicated_devices|unique }}"
  changed_when: false
  when:
    - containerized_deployment
    - osd_scenario == 'non-collocated'
    - not item.0.get("skipped")
    - item.0.get("rc", 0) != 0