Ansible : create a volume group if a disk exists

Question

Hello I am trying to write a role that can ensure the exitence of a disk before creating the volume group.

- name: "create a volume group if a disk exists"
  become: yes
  block:
 - name: listing of pvs
    shell: " pvs --noheadings -o pv_name"
    register: pv_name
 - name: "VG | volume group creation"
    lvg:
      vg: "{{ configure_vg['name'] }}"
      pvs: "{{ configure_vg['pvs'] | default(configure_os_pvs) }}"
    when: configure_vg['pvs'] in pv_name.stdout

briefly I need to create a volume group from an existant physical volume with ansible

exemple:

[root@rhel ~]# vgcreate LVMvgTEST /dev/sdb /dev/sdc
Volume group "LVMvgTEST" successfully created