ceph-ansible/infrastructure-playbooks/lv-create.yml

- name: creates logical volumes for the bucket index or fs journals on a single device and prepares for use of osd_scenario=lvm. 
  become: true
  hosts:
  - osds

  vars:
    logfile: |
      Suggested cut and paste under "lvm_volumes:" in "group_vars/osds.yml" for configuring with osd_scenario=lvm
      -----------------------------------------------------------------------------------------------------------
      {% for lv in nvme_device_lvs %}
        - data: {{ lv.lv_name }}
          data_vg: {{ nvme_vg_name }}
          journal: {{ lv.journal_name }}
          journal_vg: {{ nvme_vg_name }}
      {% endfor %}
      {% for hdd in hdd_devices %}
        - data: {{ hdd_lv_prefix }}-{{ hdd.split('/')[-1] }}
          data_vg: {{ hdd_vg_prefix }}-{{ hdd.split('/')[-1] }}
          journal: {{ hdd_journal_prefix }}-{{ hdd.split('/')[-1] }}
          journal_vg: {{ nvme_vg_name }}
      {% endfor %}

  tasks:

  - name: include vars of lv_vars.yaml
    include_vars:
      file: lv_vars.yaml
    failed_when: false

  # ensure nvme_device is set
  - name: fail if nvme_device is not undefined
    fail:
      msg: "nvme_device has not been set by the user"
    when: nvme_device is undefined or nvme_device == 'dummy'

  # need to check if lvm2 is installed
  - name: install lvm2
    package:
      name: lvm2
      state: present
    register: result
    until: result is succeeded

  # Make entire nvme device a VG
  - name: add nvme device as lvm pv
    lvg:
      force: yes
      pvs: "{{ nvme_device }}"
      pesize: 4
      state: present
      vg: "{{ nvme_vg_name }}"

  - name: create lvs for fs journals for the bucket index on the nvme device
    lvol:
      lv: "{{ item.journal_name }}"
      vg: "{{ nvme_vg_name }}"
      size: "{{ journal_size }}"
      pvs: "{{ nvme_device }}"
    with_items:
      - "{{ nvme_device_lvs }}"

  - name: create lvs for fs journals for hdd devices
    lvol:
      lv: "{{ hdd_journal_prefix }}-{{ item.split('/')[-1] }}"
      vg: "{{ nvme_vg_name }}"
      size: "{{ journal_size }}"
    with_items:
      - "{{ hdd_devices }}"

  - name: create the lv for data portion of the bucket index on the nvme device
    lvol:
      lv: "{{ item.lv_name }}"
      vg: "{{ nvme_vg_name }}"
      size: "{{ item.size }}"
      pvs: "{{ nvme_device }}"
    with_items:
      - "{{ nvme_device_lvs }}"

    # Make sure all hdd devices have a unique volume group
  - name: create vgs for all hdd devices
    lvg:
      force: yes
      pvs: "{{ item }}"
      pesize: 4
      state: present
      vg: "{{ hdd_vg_prefix }}-{{ item.split('/')[-1] }}"
    with_items:
      - "{{ hdd_devices }}"

  - name: create lvs for the data portion on hdd devices
    lvol:
      lv: "{{ hdd_lv_prefix }}-{{ item.split('/')[-1] }}"
      vg: "{{ hdd_vg_prefix }}-{{ item.split('/')[-1] }}"
      size: "{{ hdd_lv_size }}"
      pvs: "{{ item }}"
    with_items:
      - "{{ hdd_devices }}"

  - name: "write output for osds.yml to {{ logfile_path }}"
    become: false
    copy:
      content: "{{ logfile }}"
      dest: "{{ logfile_path }}"
    delegate_to: localhost