filesystem: extend support for FreeBSD (#2902)

* extend support for FreeBSD

* Check if FS exists with `fstyp` if `blkid` fails to find FS signature
  (fix a potential data loss)
* Add support for FreeBSD special devices (character devices).
* Add support for FreeBSD native fstype (UFS).
* Update DOCUMENTATION accordingly.

* add/update integration tests

* Add tests for `fstype=ufs` on FreeBSD.
* Run `remove_fs` tests (`state=absent`) on FreeBSD.
* Run `overwrite_another_fs` tests on FreeBSD.

* add a changelog fragment

* fix indentation

* restrict new tests to regular files

* fix typo

* fix searching of providersize (block count)

* add '-y' option to growfs command

* remove references to versions older than the collection itself

* bump version adding new feats to 3.4.0

* reformat *collection* and *version added* for better DOCUMENTATION parsing

* skip tests for FreeBSD < 12.2

* run tests for FreeBSD >= 12.2

* re-enable tests for FreeBSD < 12.2 and give it a try with group1

* util-linux not available on FreeBSD < 12.2

tests/integration/targets/filesystem/tasks/create_device.yml

@@ -19,6 +19,17 @@
           ansible.builtin.set_fact:
             dev: "{{ loop_device_cmd.stdout }}"
 
+    - when: fstype == 'ufs'
+      block:
+        - name: 'Create a memory disk for UFS'
+          ansible.builtin.command:
+            cmd: 'mdconfig -a -f {{ dev }}'
+          register: memory_disk_cmd
+
+        - name: 'Switch to memory disk target for further tasks'
+          ansible.builtin.set_fact:
+            dev: "/dev/{{ memory_disk_cmd.stdout }}"
+
     - include_tasks: '{{ action }}.yml'
 
   always:
@@ -28,10 +39,16 @@
         removes: '{{ dev }}'
       when: fstype == 'lvm'
 
-    - name: 'Clean correct device for LVM'
+    - name: 'Detach memory disk used for UFS'
+      ansible.builtin.command:
+        cmd: 'mdconfig -d -u {{ dev }}'
+        removes: '{{ dev }}'
+      when: fstype == 'ufs'
+
+    - name: 'Clean correct device for LVM and UFS'
       ansible.builtin.set_fact:
         dev: '{{ image_file }}'
-      when: fstype == 'lvm'
+      when: fstype in ['lvm', 'ufs']
 
     - name: 'Remove disk image file'
       ansible.builtin.file: