Add zap journal devices for raw multi journal scenario

Signed-off-by: KGoreczny <krzysztof.goreczny@intel.com>

purge-cluster.yml

@@ -14,6 +14,9 @@
 # This can cause problem with qemu-kvm
     purge_all_packages: true
 
+# When set to true and raw _multi_journal is used then journal disk are also zapped
+    zap_journal_disks: true
+
     ceph_packages:
       - ceph
       - ceph-common
@@ -147,6 +150,14 @@
     when:
      osd_group_name in group_names
 
+  - name: zap journal devices
+    shell: ceph-disk zap "{{ item }}"
+    with_items: "{{ raw_journal_devices|default([])|unique }}"
+    when:
+      osd_group_name in group_names and
+      raw_multi_journal and
+      zap_journal_disks 
+
   - name: purge ceph packages with yum
     yum:
       name: "{{ item }}"