fix: os disk management

roles/os_disks/README.md

@@ -0,0 +1,20 @@
+# OS Disk
+
+Prepare LVM disks. Configuration example:
+
+```
+disks_vg:
+  - vg: data
+    state: present
+    devices_dev:
+      - /dev/vda
+disks_lv:
+  - lv: var_lib_docker
+    vg: data
+    size: 20G
+    state: # present (mounted), absent (destroyed)
+    fstype: ext4
+```
+
+Note:
+- Provides a VM disk detection helper

roles/os_disks/defaults/main.yml

@@ -1,4 +1,8 @@
 ---
 
-disks_vg: []
-disks_lv: []
+disks_vg__default: []
+disks_lv__default: []
+
+disks_vg: "{{ vars | dict2items | selectattr('key', 'match', '^disks_vg__.*') | map(attribute='value') | list | flatten | unique }}"
+disks_lv: "{{ vars | dict2items | selectattr('key', 'match', '^disks_lv__.*') | map(attribute='value') | list | flatten | unique }}"
+

roles/os_disks/tasks/main.yml

@@ -67,7 +67,7 @@
     state: "{{ state }}"
   loop: "{{ disks_lv }}"
   vars:
-    state: "{{ item.state | default('mounted') }}"
+    state: "{{ ( item.state == 'present' ) | ternary( 'mounted', item.state | default('mounted')) }}"
     fstype: "{{ item.fstype | default('ext4') }}"
     src: "/dev/{{ item.vg }}/{{ item.lv }}"
     path: "/{{ item.lv | replace('_', '/') }}"