---
# This playbook will make custom partition layout for your osd hosts.
# You should define `devices` variable for every host.
#
# For example, in host_vars/hostname1
#
# devices:
# - device_name: sdb
#   partitions:
#   - index: 1
#     size: 10G
#     type: data
#   - index: 2
#     size: 5G
#     type: journal
# - device_name: sdc
#   partitions:
#   - index: 1
#     size: 10G
#     type: data
#   - index: 2
#     size: 5G
#     type: journal
#
- vars:
    osd_group_name: osds
    journal_typecode: 45b0969e-9b03-4f30-b4c6-b4b80ceff106
    data_typecode: 4fbd7e29-9d25-41b8-afd0-062c0ceff05d
    devices: []
  hosts:
  - "{{ osd_group_name }}"

  tasks:

  - name: load a variable file for devices partition
    include_vars: "{{ item }}"
    with_first_found:
      - files:
          - "host_vars/{{ ansible_hostname }}.yml"
          - "host_vars/default.yml"
        skip: true

  - name: exit playbook, if devices not defined
    fail:
      msg: "devices must be define in host_vars/default.yml or host_vars/{{ ansible_hostname }}.yml"
    when: devices is not defined

  - name: install sgdisk(gdisk)
    package:
      name: gdisk
      state: present

  - name: erase all previous partitions(dangerous!!!)
    shell: sgdisk --zap-all -- /dev/{{item.device_name}}
    with_items: "{{ devices }}"

  - name: make osd partitions
    shell: >
           sgdisk --new={{item.1.index}}:0:+{{item.1.size}} "--change-name={{item.1.index}}:ceph {{item.1.type}}"
           "--typecode={{item.1.index}}:{% if item.1.type=='data' %}{{data_typecode}}{% else %}{{journal_typecode}}{% endif %}"
           --mbrtogpt -- /dev/{{item.0.device_name}}
    with_subelements:
    - "{{ devices }}"
    - partitions

  - set_fact:
      owner: 167
      group: 167
    when:
      - ansible_os_family == "RedHat"
  
  - set_fact:
      owner: 64045
      group: 64045
    when:
      - ansible_os_family == "Debian"

  - name: change partitions ownership
    file:
      path: "/dev/{{item.0.device_name}}{{item.1.index}}"
      owner: "{{ owner | default('root')}}"
      group: "{{ group | default('disk')}}"
    with_subelements:
      - "{{ devices }}"
      - partitions
    when:
      item.0.device_name | match('/dev/([hsv]d[a-z]{1,2}){1,2}$')

  - name: change partitions ownership
    file:
      path: "/dev/{{item.0.device_name}}p{{item.1.index}}"
      owner: "{{ owner | default('root')}}"
      group: "{{ group | default('disk')}}"
    with_subelements:
      - "{{ devices }}"
      - partitions
    when:
      item.0.device_name | match('/dev/(cciss/c[0-9]d[0-9]|nvme[0-9]n[0-9]){1,2}$')
...