Use the standard messaging in the fernet-key-rotate workbook

Update the fernet-key-rotate workbook to use the standard message sending
workflow. This workflow reduces the boilerplate that is copied between
workflows by defining the message structure, providing the retry logic
and ensuring the task on a "FAILED" message.

The workflow also offers optional persistence in Swift. If the plan name
is given to the workflow it will store the messages in a Swift container
named <plan_name>-messages.

Related-Bug: #1757372

Change-Id: I5087b777a24700c0d99c42db9ead64933674247b

workbooks/fernet-key-rotate.yaml

@@ -21,7 +21,7 @@ workflows:
       rotate_keys:
         action: tripleo.parameters.rotate_fernet_keys container=<% $.container %>
         on-success: deploy_ssh_key
-        on-error: notify_zaqar
+        on-error: send_message
         publish-on-error:
           status: FAILED
           message: <% task().result %>
@@ -29,7 +29,7 @@ workflows:
       deploy_ssh_key:
         workflow: tripleo.validations.v1.copy_ssh_key
         on-success: get_privkey
-        on-error: notify_zaqar
+        on-error: send_message
         publish-on-error:
           status: FAILED
           message: <% task().result %>
@@ -37,7 +37,7 @@ workflows:
       get_privkey:
         action: tripleo.validations.get_privkey
         on-success: deploy_keys
-        on-error: notify_zaqar
+        on-error: send_message
         publish-on-error:
           status: FAILED
           message: <% task().result %>
@@ -56,25 +56,21 @@ workflows:
             fernet_keys: <% task(rotate_keys).result %>
           use_openstack_credentials: true
           playbook: /usr/share/tripleo-common/playbooks/rotate-keys.yaml
-        on-success: notify_zaqar
+        on-success: send_message
         publish:
           status: SUCCESS
           message: <% task().result %>
-        on-error: notify_zaqar
+        on-error: send_message
         publish-on-error:
           status: FAILED
           message: <% task().result %>
 
-      notify_zaqar:
-        action: zaqar.queue_post
+      send_message:
+        workflow: tripleo.messaging.v1.send
         input:
           queue_name: <% $.queue_name %>
-          messages:
-            body:
-              type: tripleo.fernet_keys.v1.rotate_fernet_keys
-              payload:
-                status: <% $.status %>
-                message: <% $.get('message', '') %>
-                execution: <% execution() %>
-        on-success:
-          - fail: <% $.get('status') = "FAILED" %>
+          type: <% execution().name %>
+          status: <% $.status %>
+          message: <% $.get('message', '') %>
+          execution: <% execution() %>
+          plan_name: <% $.container %>