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. 
  hosts:
  - osds

  tasks:

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

  # need to check if lvm2 is installed
  - name: install lvm2
    package:
      name: lvm2
      state: present

  # 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 }}"

  # Write ending configuration logfile
  - name: write output for osds.yml to logfile /tmp/logfile.txt
    template:
      src: templates/logfile.j2
      dest: /tmp/logfile.txt
    delegate_to: localhost