lvm_pv: new module for LVM Physical Volumes (#10070)

* Added LVM Physical Volume module

* Fixed CI checks

* python 2.7 compatibility

* Fixed another fprint line not compatible with python 2.x

* Applied cosmetic changes

* Removed msg from RETURN section

* Updated the 'absent state' block logic

* Added integration tests

* Updated logic for creating loop devices on Alpine Linux

* Updated loop device path

* Minor, cosmetic changes

* Adjust indentation.

---------

Co-authored-by: Felix Fontein <felix@fontein.de>

tests/integration/targets/lvm_pv/tasks/resizing.yml

@@ -0,0 +1,27 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+- name: Growing the loop device file to 100MB
+  ansible.builtin.shell: truncate -s 100M {{ remote_tmp_dir }}/test_lvm_pv.img
+
+- name: Refreshing the loop device
+  ansible.builtin.shell: losetup -c {{ loop_device.stdout }}
+
+- name: Resizing the physical volume
+  community.general.lvm_pv:
+    device: "{{ loop_device.stdout }}"
+    resize: true
+  register: resize_result
+
+- name: Checking physical volume size
+  ansible.builtin.command: pvs --noheadings -o pv_size --units M {{ loop_device.stdout }}
+  register: pv_size_output
+
+- name: Asserting physical volume was resized
+  ansible.builtin.assert:
+    that:
+      - resize_result.changed == true
+      - (pv_size_output.stdout | trim | regex_replace('M', '') | float) > 95
+      - "'resized' in resize_result.msg"