molecule test and idempotence

tasks/manage_lvm.yml

@@ -1,123 +1,26 @@
 ---
-- name: manage_lvm | creating new LVM volume group(s)
-  lvg:
-    vg: "{{ item['vgname'] }}"
-    pvs: "{{ item['disks']|join(',') }}"
-    state: "present"
-  become: true
-  with_items: "{{ lvm_groups }}"
-  when: >
-        (item['create'] is defined and
-        item['create'])
+- name: manage_lvm | manage physical volume group creation
+  include: create_vg.yml
 
-- name: manage_lvm | creating new LVM logical volume(s)
-  lvol:
-    vg: "{{ item[0]['vgname'] }}"
-    lv: "{{ item[1]['lvname'] }}"
-    size: "{{ item[1]['size'] }}"
-    shrink: no
-    opts: "{{ item[1]['opts'] | default('') }}"
-    state: "present"
+- name: manage_lvm | check existing logical volume group(s)
+  shell: "lvs -o lv_name {{ item[0]['vgname'] }} --separator='|' --noheadings | grep {{ item[1]['lvname'] }}"
   become: true
-  register: lvm
+  ignore_errors: True
+  changed_when: no
   with_subelements:
     - "{{ lvm_groups }}"
     - lvnames
-  when: >
-        ((item[0]['create'] is defined
-        and item[0]['create']) and
-        (item[1] is defined and
-        item[1] != 'None') and
-        (item[1]['create'] is defined and
-        item[1]['create']))
+  register: lv_exist
 
-- name: manage_lvm | creating new filesystem on new LVM logical volume(s)
-  filesystem:
-    fstype: "{{ item[1]['filesystem'] }}"
-    dev: "/dev/{{ item[0]['vgname'] }}/{{ item[1]['lvname'] }}"
-    # resizefs: yes  #coming in 2.0 which will replace the resizing filesystem task below
-  become: true
-  with_subelements:
-    - "{{ lvm_groups }}"
-    - lvnames
-  when: >
-        ((item[0]['create'] is defined and
-        item[0]['create']) and
-        (item[1] is defined and
-        item[1] != 'None') and
-        (item[1]['create'] is defined and
-        item[1]['create']) and
-        (item[1]['filesystem'] is defined and
-        item[1]['filesystem'] != 'None') and
-        item[1]['filesystem'] != "swap")
+- debug: var=lv_exist
 
-- name: manage_lvm | mounting new filesystem(s)
-  mount:
-    name: "{{ item[1]['mntp'] }}"
-    src: "/dev/{{ item[0]['vgname'] }}/{{ item[1]['lvname'] }}"
-    fstype: "{{ item[1]['filesystem'] }}"
-    state: "mounted"
-    opts: "{{ item[1]['mopts'] | default('defaults') }}"
-  become: true
-  with_subelements:
-    - "{{ lvm_groups }}"
-    - lvnames
+- name: manage_lvm | loop over logical volume(s)
+  include: create_lv.yml
+  loop: "{{ lv_exist.results }}"
+  loop_control:
+    loop_var: vg
   when: >
-        ((item[0]['create'] is defined and
-        item[0]['create']) and
-        (item[1] is defined and
-        item[1] != 'None') and
-        (item[1]['create'] is defined and
-        item[1]['create']) and
-        (item[1]['mount'] is defined and
-        item[1]['mount']))
-
-- name: manage_lvm | resizing filesystem
-  command: resize2fs /dev/{{ item[0]['vgname'] }}/{{ item[1]['lvname'] }}
-  become: true
-  with_subelements:
-    - "{{ lvm_groups }}"
-    - lvnames
-  when: >
-        lvm['changed'] and
-        item[1]['filesystem'] is defined and
-        item[1]['filesystem'] != "None" and
-        item[1]['filesystem'] != "swap" and
-        item[1]['filesystem'] != "xfs" and
-        item[1]['filesystem'] != "btrfs"
-
-- name: manage_lvm | resizing xfs
-  command: xfs_growfs -d {{ item[1]['mntp'] }}
-  become: true
-  with_subelements:
-    - "{{ lvm_groups }}"
-    - lvnames
-  when: >
-        lvm['changed'] and
-        item[1]['filesystem'] is defined and
-        item[1]['filesystem'] == "xfs"
-
-- name: manage_lvm | resizing swap
-  shell: "swapoff -a && mkswap /dev/{{ item[0]['vgname'] }}/{{ item[1]['lvname'] }} && swapon -va"
-  become: true
-  with_subelements:
-    - "{{ lvm_groups }}"
-    - lvnames
-  when: >
-        lvm['changed'] and
-        item[1]['filesystem'] is defined and
-        item[1]['filesystem'] == "swap"
-
-- name: manage_lvm | resizing btrfs
-  shell: "btrfs filesystem resize max {{ item[1]['mntp'] }}"
-  become: true
-  with_subelements:
-    - "{{ lvm_groups }}"
-    - lvnames
-  when: >
-        lvm['changed'] and
-        item[1]['filesystem'] is defined and
-        item[1]['filesystem'] == "btrfs"
+    vg.rc != 0
 
 - name: manage_lvm | unmounting filesystem(s)
   mount:
@@ -136,6 +39,29 @@
         not item[1]['create'] and
         item[1]['filesystem'] != "swap")
 
+- meta: flush_handlers
+
+- name: manage_lvm | mounting new filesystem(s)
+  mount:
+    name: "{{ item[1]['mntp'] }}"
+    src: "/dev/{{ item[0]['vgname'] }}/{{ item[1]['lvname'] }}"
+    fstype: "{{ item[1]['filesystem'] }}"
+    state: "mounted"
+    opts: "{{ item[1]['mopts'] | default('defaults') }}"
+  become: true
+  with_subelements:
+    - "{{ lvm_groups }}"
+    - lvnames
+  when: >
+    ((item[0]['create'] is defined and
+    item[0]['create']) and
+    (item[1] is defined and
+    item[1] != 'None') and
+    (item[1]['create'] is defined and
+    item[1]['create']) and
+    (item[1]['mount'] is defined and
+    item[1]['mount']))
+
 - name: manage_lvm | Removing LVM logical volume(s)
   lvol:
     vg: "{{ item[0]['vgname'] }}"
@@ -152,7 +78,7 @@
         (item[1]['create'] is defined and
         not item[1]['create'])
 
-- name: manage_lvm | Removing LVM volume group(s)
+- name: manage_lvm | Removing LVM physical volume group(s)
   lvg:
     vg: "{{ item['vgname'] }}"
     pvs: "{{ item['disks']|join(',') }}"