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

---
- name: Creates logical volumes for the bucket index or fs journals on a single device.
  become: true
  hosts: osds

  vars:
    logfile: |
      Suggested cut and paste under "lvm_volumes:" in "group_vars/osds.yml"
      -----------------------------------------------------------------------------------------------------------
      {% 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
      ansible.builtin.include_vars:
        file: lv_vars.yaml  # noqa missing-import
      failed_when: false

    # ensure nvme_device is set
    - name: Fail if nvme_device is not defined
      ansible.builtin.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
      ansible.builtin.package:
        name: lvm2
        state: present
      register: result
      until: result is succeeded

    # Make entire nvme device a VG
    - name: Add nvme device as lvm pv
      community.general.lvg:
        force: true
        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
      community.general.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
      community.general.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
      community.general.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
      community.general.lvg:
        force: true
        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
      community.general.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
      become: false
      ansible.builtin.copy:
        content: "{{ logfile }}"
        dest: "{{ logfile_path }}"
        mode: preserve
      delegate_to: localhost