Disable overcloud image validation

To speed up CI and development process it would be better to disable
this script. CI will fail anyway even without this validation. Users
will be able to enable it if/when they decides to use tripleo-upgrade
for production upgrade.

Closes-bug: #1844567
Change-Id: Ia5a767491c2f297b396c5cc937c1495e4267a4e3
(cherry picked from commit 72dd2c49e3)

README.rst

@@ -66,6 +66,10 @@ Run overcloud update::
 
     overcloud_deploy_script: "~/overcloud_deploy.sh"
 
+Validate overcloud after update::
+
+   overcloud_images_validate: false
+
 Location of the initial overcloud deploy script::
 
     undercloud_upgrade_script: "~/undercloud_upgrade.sh"

defaults/main.yml

@@ -20,6 +20,7 @@ containerized_undercloud_upgrade: true
 overcloud_upgrade: false
 undercloud_update: false
 overcloud_update: false
+overcloud_images_validate: false
 
 # enable ffu upgrade
 ffu_undercloud_upgrade: false

tasks/update/main.yml

@@ -138,9 +138,9 @@
           source {{ undercloud_rc }}
           bash {{ overcloud_validate_images_script }} 2>&1 {{ timestamper_cmd }} > \
             {{ working_dir }}/validate_oc_images_containers.log
+      when: overcloud_images_validate|bool
       tags:
         - overcloud_update
-        - overcloud_images_validate
 
     - name: import nova_actions_check tasks
       import_tasks: ../common/nova_actions_check.yml