Do not dump detail of container definitions

Some containers such as keystone_bootstrap contains secret information
in the container definitions. We should not dump such details into
ansible output.

Closes-Bug: #1998181
Change-Id: I6c98afc8e0d6822199001ffd9535575a4506b82d

tripleo_ansible/roles/tripleo_container_standalone/tasks/main.yml

@@ -55,6 +55,10 @@
   copy:
     content: "{{ item.value | to_nice_json }}"
     dest: "{{ tripleo_container_standalone_container_startup_config_dir }}/{{ tripleo_container_standalone_service }}/{{ item.key }}.json"
+  # NOTE(tkajinam): Some containers (eg. keystone_bootstrap) contain secrets
+  #                 in its environments. Hide the output to avoid dumping these
+  #                 to output.
+  no_log: true
   loop: "{{ tripleo_container_standalone_container_defs | dict2items }}"
 
 - name: Run {{ tripleo_container_standalone_service }}  containers