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

---
- name: Tear down existing osd filesystems then logical volumes, volume groups, and physical volumes
  become: true
  hosts: osds

  vars_prompt:
    - name: ireallymeanit  # noqa: name[casing]
      prompt: Are you sure you want to tear down the logical volumes?
      default: 'no'
      private: false

  tasks:
    - name: Exit playbook, if user did not mean to tear down logical volumes
      ansible.builtin.fail:
        msg: >
          "Exiting lv-teardown playbook, logical volumes were NOT torn down.
           To tear down the logical volumes, either say 'yes' on the prompt or
           or use `-e ireallymeanit=yes` on the command line when
           invoking the playbook"
      when: ireallymeanit != 'yes'

    - name: Include vars of lv_vars.yaml
      ansible.builtin.include_vars:
        file: lv_vars.yaml  # noqa missing-import
      failed_when: false

    # need to check if lvm2 is installed
    - name: Install lvm2
      ansible.builtin.package:
        name: lvm2
        state: present
      register: result
      until: result is succeeded

# BEGIN TEARDOWN
    - name: Find any existing osd filesystems
      ansible.builtin.shell: |
        set -o pipefail;
        grep /var/lib/ceph/osd /proc/mounts | awk '{print $2}'
      register: old_osd_filesystems
      changed_when: false

    - name: Tear down any existing osd filesystem
      ansible.posix.mount:
        path: "{{ item }}"
        state: unmounted
      with_items: "{{ old_osd_filesystems.stdout_lines }}"

    - name: Kill all lvm commands that may have been hung
      ansible.builtin.command: "killall -q lvcreate pvcreate vgcreate lvconvert || echo -n"
      failed_when: false
      changed_when: false

    ## Logcal Vols
    - name: Tear down existing lv for bucket index
      community.general.lvol:
        lv: "{{ item.lv_name }}"
        vg: "{{ nvme_vg_name }}"
        state: absent
        force: true
      with_items: "{{ nvme_device_lvs }}"

    - name: Tear down any existing hdd data lvs
      community.general.lvol:
        lv: "{{ hdd_lv_prefix }}-{{ item.split('/')[-1] }}"
        vg: "{{ hdd_vg_prefix }}-{{ item.split('/')[-1] }}"
        state: absent
        force: true
      with_items: "{{ hdd_devices }}"

    - name: Tear down any existing lv of journal for bucket index
      community.general.lvol:
        lv: "{{ item.journal_name }}"
        vg: "{{ nvme_vg_name }}"
        state: absent
        force: true
      with_items: "{{ nvme_device_lvs }}"

    - name: Tear down any existing lvs of hdd journals
      community.general.lvol:
        lv: "{{ hdd_journal_prefix }}-{{ item.split('/')[-1] }}"
        vg: "{{ nvme_vg_name }}"
        state: absent
        force: true
      with_items: "{{ hdd_devices }}"

    ## Volume Groups
    - name: Remove vg on nvme device
      community.general.lvg:
        vg: "{{ nvme_vg_name }}"
        state: absent
        force: true

    - name: Remove vg for each hdd device
      community.general.lvg:
        vg: "{{ hdd_vg_prefix }}-{{ item.split('/')[-1] }}"
        state: absent
        force: true
      with_items: "{{ hdd_devices }}"

    ## Physical Vols
    - name: Tear down pv for nvme device
      ansible.builtin.command: "pvremove --force --yes {{ nvme_device }}"
      changed_when: false

    - name: Tear down pv for each hdd device
      ansible.builtin.command: "pvremove --force --yes {{ item }}"
      changed_when: false
      with_items: "{{ hdd_devices }}"