vm_extend_lv_with_new_disk.yml

---

- name: Provision new disk to VM
  hosts: all

  vars:
    - vm_lv_name: "home"
    - vm_vg_name: "rvg"
    - lv_size: '+100%FREE'

  collections:
    - redhat.rhel_system_roles
    - community.general

  tasks:
    - name: Register unused disk to variable
      find_unused_disk:
        min_size: '1g'
      register: vm_unused_disk
      failed_when: "'Unable to find unused disk' in vm_unused_disk"

    - name: Unused disk output debug
      debug:
        msg: "{{ vm_unused_disk }}"
        verbosity: 1

    - name: Unused disks debug
      debug:
        msg: "{{ vm_unused_disk.disks[0] }}"
        verbosity: 1

    - name: Check if there is empty disks and abort playbook if there isn't
      when: vm_unused_disk.disks[0]  == "Unable to find unused disk"
      fail:
        msg: "Unable to find unused disk from the VM."

    - name: Create PV with CMD
      command: pvcreate "/dev/{{ vm_unused_disk.disks[0] }}"

    - name: Add PV to given VG with CMD
      command: vgextend "{{ vm_vg_name }}" "/dev/{{ vm_unused_disk.disks[0] }}"

    - name: >
        Extend the logical volume to take all remaining space of the PVs
        and resize the underlying filesystem
      lvol:
        vg: "{{ vm_vg_name }}"
        lv: "{{ vm_lv_name }}"
        size: "{{ lv_size }}"
        resizefs: true