storage/volumes: support nesting

1 files changed, 37 insertions, 19 deletions

diff --git a/roles/storage/lvm/volume/tasks/main.yml b/roles/storage/lvm/volume/tasks/main.yml
index 2537c28c..166d6ff8 100644
--- a/roles/storage/lvm/volume/tasks/main.yml
+++ b/roles/storage/lvm/volume/tasks/main.yml
@@ -1,26 +1,44 @@
 ---
+- name: check volume parent
+  when: "'parent' in lvm_volume"
+  assert:
+    msg: "the volume parent must be a lvm thinpool"
+    that:
+    - lvm_volume.parent.type == 'lvm'
+    - (lvm_volume.parent.thinpool | default(false))
+
+- name: install thin-provisioning-tools
+  when: (lvm_volume.thinpool | default(false))
+  apt:
+    name: thin-provisioning-tools
+    state: present
+
 - name: create logical volume
   lvol:
-    vg: "{{ lvm_volume.vg }}"
-    lv: "{{ lvm_volume.lv }}"
+    vg: "{{ lvm_volume.parent.vg | default(lvm_volume.vg) }}"
+    lv: "{{ (lvm_volume.thinpool | default(false)) | ternary(omit, lvm_volume.lv) }}"
     size: "{{ lvm_volume.size }}"
+    thinpool: "{{ (lvm_volume.thinpool | default(false)) | ternary(lvm_volume.lv, (lvm_volume.parent.lv | default(omit))) }}"
 
-- name: create filesystem
-  filesystem:
-    fstype: "{{ lvm_volume.fs }}"
-    dev: "/dev/mapper/{{ lvm_volume.vg | replace('-', '--') }}-{{ lvm_volume.lv | replace('-', '--') }}"
+- name: create and mount filesystem
+  when: not (lvm_volume.thinpool | default(false))
+  block:
+  - name: create filesystem
+    filesystem:
+      fstype: "{{ lvm_volume.fs }}"
+      dev: "/dev/mapper/{{ lvm_volume.parent.vg | default(lvm_volume.vg) | replace('-', '--') }}-{{ lvm_volume.lv | replace('-', '--') }}"
 
-- name: mount filesytem
-  mount:
-    src: "/dev/mapper/{{ lvm_volume.vg | replace('-', '--') }}-{{ lvm_volume.lv | replace('-', '--') }}"
-    path: "{{ lvm_volume.dest }}"
-    fstype: "{{ lvm_volume.fs }}"
-    state: mounted
+  - name: mount filesytem
+    mount:
+      src: "/dev/mapper/{{ lvm_volume.parent.vg | default(lvm_volume.vg) | replace('-', '--') }}-{{ lvm_volume.lv | replace('-', '--') }}"
+      path: "{{ lvm_volume.dest }}"
+      fstype: "{{ lvm_volume.fs }}"
+      state: mounted
 
-- name: set volume owner/group and mode
-  file:
-    state: directory
-    path: "{{ lvm_volume.dest }}"
-    mode: "{{ lvm_volume.mode | default(omit) }}"
-    owner: "{{ lvm_volume.owner | default(omit) }}"
-    group: "{{ lvm_volume.group | default(omit) }}"
+  - name: set volume owner/group and mode
+    file:
+      state: directory
+      path: "{{ lvm_volume.dest }}"
+      mode: "{{ lvm_volume.mode | default(omit) }}"
+      owner: "{{ lvm_volume.owner | default(omit) }}"
+      group: "{{ lvm_volume.group | default(omit) }}"