[ansible@control lesson13]$ cat whoever.yaml
---
- name: Play with sdb if exists
  hosts: all
  vars:
    vg_name: vgfiles
    lv_name: lvfiles
    my_lv_size: 6
  tasks:
    - name: Fail and inform that sdb oes not exists.
      fail:
        msg: "Device sdb does not exists on {{ inventory_hostname }}"
      when: ansible_facts['devices']['sdb'] is not defined

    - name: Create one big partition on sdb
      parted:

    - name: Create one big vg on created partition
      lvg:
    - name: Re-read facts for device
      setup:
        filter: ansible_lvm

    - name: Create logical volume
      block:
        - name: set
          set_fact:
            my_lv_size = 6
          failed_when: ansible_facts['lvm']['vgs'][vg_name]['free_g'] | int <= 5
      rescue:
        - name: set
          set_fact:
            my_lv_size = 3
      always:
        - name: Create logical volume
          lvol:
        - name: Format XFS with filesystem
          filesystem:
        - name: mount with mount
          mount: