Comment out tacker image until service is ready

The kolla tacker image was split into base, conductor and server images
in review I52778e86e4f2c297ead8d4b09983e5e38ca88c70 but TripleO
implementation is lacking behind and is still referencing the tacker
image.

This prevents to automatically generate the list of images required for
a TripleO deployment by inspecting the overcloud_containers.yaml.j2
file. This commit comments out the tacker block until the TripleO tacker
service implementation has caught up with the Kolla change.

Change-Id: I4883ab04cec428a619ace84d61d4d44bd302264e
Related-Bug: #1714270

container-images/overcloud_containers.yaml

@@ -91,7 +91,6 @@ container_images:
 - imagename: docker.io/tripleoupstream/centos-binary-swift-container:latest
 - imagename: docker.io/tripleoupstream/centos-binary-swift-object:latest
 - imagename: docker.io/tripleoupstream/centos-binary-swift-proxy-server:latest
-- imagename: docker.io/tripleoupstream/centos-binary-tacker:latest
 - imagename: docker.io/tripleoupstream/centos-binary-zaqar:latest
 - imagename: docker.io/ceph/daemon:tag-stable-3.0-luminous-centos-7
 - imagename: docker.io/tripleoupstream/centos-binary-rsyslog-base:latest

container-images/overcloud_containers.yaml.j2

@@ -665,12 +665,16 @@ container_images_template:
   - OS::TripleO::Services::SwiftRingBuilder
   - OS::TripleO::Services::SwiftStorage
 
-- imagename: "{{namespace}}/{{name_prefix}}tacker{{name_suffix}}:{{tag}}"
-  params:
-  - DockerTackerConfigImage
-  - DockerTackerImage
-  services:
-  - OS::TripleO::Services::Tacker
+# The kolla tacker image was split into base, conductor and server images in
+# kolla review https://review.openstack.org/#/c/477494/
+# Uncomment when TripleO has caught up with the change.
+# https://bugs.launchpad.net/tripleo/+bug/1714270
+# - imagename: "{{namespace}}/{{name_prefix}}tacker{{name_suffix}}:{{tag}}"
+#   params:
+#   - DockerTackerConfigImage
+#   - DockerTackerImage
+#   services:
+#   - OS::TripleO::Services::Tacker
 
 - imagename: "{{namespace}}/{{name_prefix}}zaqar{{name_suffix}}:{{tag}}"
   params: