Format lvm lv asynchronously

Fixes: #173

ChangeLog.rst

@@ -38,6 +38,10 @@ upgrading a MetalK8s 0.1 cluster to MetalK8s 0.2 (:ghissue:`147`)
 storage related actions. Please see :ref:`upgrade_from_MetalK8s_before_0.2.0`
 (:ghissue:`153`)
 
+Features added
+--------------
+:ghissue:`173` - Format pv in asynchronous mode (:ghpull:`181`)
+
 
 Features added
 --------------

roles/setup_lvm_lv/defaults/main.yml

@@ -36,3 +36,7 @@ metalk8s_host_path_prefix: "/mnt"
 # Only the "size" attribute is mandatory.
 # The others attribute value will have the values specified in
 # metalk8s_lvm_lv_defaults variable
+
+format_async: 45
+format_poll: 5
+format_retries: 30000

roles/setup_lvm_lv/tasks/main.yml

@@ -105,8 +105,22 @@
     dev: '{{ item.key }}'
     opts: '{{ item.value.fs_opts }}'
     force: '{{ item.value.force }}'
+  async: '{{ format_async }}'
+  poll: '{{ format_poll }}'
+  register: lv_format
   with_dict: '{{ metalk8s_lvm_all_lvs }}'
 
+- name: 'Wait for filesystem to be formatted'
+  async_status:
+    jid: '{{ item.ansible_job_id }}'
+  loop_control:
+    label: '{{ item["item"].key }}'
+  with_items: >-
+    {{ lv_format.results|default([]) }}
+  register: job_result
+  until: job_result.finished
+  retries: '{{ format_retries }}'
+
 - name: 'Setup LVM: Get UUIDs of LVM LVs'
   command: blkid -s UUID -o value {{ item.key }}
   check_mode: False