Conditionalize docker socket bind-mount

The socket is only needed when ContainerCli is set to 'docker'.
It only affects mistral executor and sensu-client containers, which were
the last containers relying on the socket.

For sensu-client, it was for healthchecks and they are being replaced by
systemd so the feature parity will be here.

For mistral-executor, it's needed by tripleo-validations running docker
CLI and they will have to run podman cli instead of docker.

Change-Id: I4e3d29a6eb65d871d7a1a935fcbd7bb98e7d1752

docker/services/mistral-executor.yaml

@@ -56,9 +56,16 @@ parameters:
     default: ''
     description: Configuration file for Undercloud, needed by TripleO Validations.
     type: string
+  ContainerCli:
+    type: string
+    default: 'docker'
+    description: CLI tool used to manage containers.
+    constraints:
+      - allowed_values: ['docker', 'podman']
 
 conditions:
   undercloud_config_file_path_unset: {equals : [{get_param: UndercloudConfigFilePath}, '']}
+  docker_enabled: {equals: [{get_param: ContainerCli}, 'docker']}
 
 resources:
 
@@ -104,7 +111,12 @@ outputs:
               - {get_attr: [MySQLClient, role_data, step_config]}
         config_image: {get_param: DockerMistralConfigImage}
         volumes:
-          - /var/run/docker.sock:/var/run/docker.sock:rw
+          list_concat:
+            -
+              if:
+                - docker_enabled
+                - - /var/run/docker.sock:/var/run/docker.sock:rw
+                - null
       kolla_config:
         /var/lib/kolla/config_files/mistral_executor.json:
           command: /usr/bin/mistral-server --config-file=/etc/mistral/mistral.conf --log-file=/var/log/mistral/executor.log --server=executor

docker/services/sensu-client.yaml

@@ -68,7 +68,15 @@ parameters:
     type: number
     description: The number of seconds sensu-plugin-aware handlers should wait before taking second action.
     default: 90
+  ContainerCli:
+    type: string
+    default: 'docker'
+    description: CLI tool used to manage containers.
+    constraints:
+      - allowed_values: ['docker', 'podman']
 
+conditions:
+  docker_enabled: {equals: [{get_param: ContainerCli}, 'docker']}
 
 resources:
   ContainersCommon:
@@ -145,10 +153,13 @@ outputs:
               list_concat:
                 - {get_attr: [ContainersCommon, volumes]}
                 -
-                  - /var/run/docker.sock:/var/run/docker.sock:rw
-                  - /var/lib/kolla/config_files/sensu-client.json:/var/lib/kolla/config_files/config.json:ro
-                  - /var/lib/config-data/puppet-generated/sensu/:/var/lib/kolla/config_files/src:ro
-                  - /var/log/containers/sensu:/var/log/sensu:rw
+                  if:
+                    - docker_enabled
+                    - - /var/run/docker.sock:/var/run/docker.sock:rw
+                    - null
+                - /var/lib/kolla/config_files/sensu-client.json:/var/lib/kolla/config_files/config.json:ro
+                - /var/lib/config-data/puppet-generated/sensu/:/var/lib/kolla/config_files/src:ro
+                - /var/log/containers/sensu:/var/log/sensu:rw
             environment:
               - KOLLA_CONFIG_STRATEGY=COPY_ALWAYS
       host_prep_tasks: