Check whether image cache directory is writeable

ansible/kolla-openstack.yml

@@ -60,7 +60,9 @@
             owner: "{{ lookup('env', 'USER') }}"
             group: "{{ lookup('env', 'USER') }}"
           become: True
-          when: not image_cache_stat.stat.exists
+          when: >-
+            not image_cache_stat.stat.exists or
+            not image_cache_stat.stat.writeable
 
         - name: Ensure Ironic Python Agent images are copied onto the local machine
           fetch:

ansible/overcloud-ipa-images.yml

@@ -76,7 +76,9 @@
         owner: "{{ ansible_user }}"
         group: "{{ ansible_user }}"
       become: True
-      when: not image_cache_stat.stat.exists
+      when: >-
+        not image_cache_stat.stat.exists or
+        not image_cache_stat.stat.writeable
 
     - name: Ensure locally built Ironic Python Agent (IPA) images are copied
       copy: