[train] Switch to content provider jobs/templates

This change switches templates and jobs to the content provider
dependency relation so the jobs share the produced artifacts.

Depends-On: https://review.opendev.org/758214

Change-Id: I207490df26ff464791587623c26db743ab7591db

zuul.d/layout.yaml

@@ -1,6 +1,6 @@
 - project:
     templates:
-    - tripleo-multinode-container-minimal
+    - tripleo-multinode-container-minimal-pipeline
     - openstack-python3-train-jobs
     - tripleo-validations-molecule-jobs
     - check-requirements
@@ -8,24 +8,31 @@
     check:
       jobs:
       - openstack-tox-linters
+      - tripleo-ci-centos-8-content-provider: &content_provider
+          dependencies: &deps_lint
+            - openstack-tox-linters
       - openstack-tox-docs: &tripleo-docs
           files:
           - ^doc/.*
           - ^README.rst
       - openstack-tox-lower-constraints
-      - tripleo-ci-centos-8-scenario004-standalone:
+      - tripleo-ci-centos-8-scenario004-standalone: &scenario004
+          vars: &sa_consumer_vars
+            consumer_job: true
+            build_container_images: false
+            tags:
+              - standalone
           dependencies: &deps
-            - openstack-tox-linters
+            - tripleo-ci-centos-8-content-provider
           files:
             - ^roles/ceph.*$
     gate:
       jobs:
       - openstack-tox-linters
+      - tripleo-ci-centos-8-content-provider: *content_provider
       - openstack-tox-docs: *tripleo-docs
       - openstack-tox-lower-constraints
-      - tripleo-ci-centos-8-scenario004-standalone:
-          files:
-            - ^roles/ceph.*$
+      - tripleo-ci-centos-8-scenario004-standalone: *scenario004
     promote:
       jobs:
       - promote-openstack-tox-docs: *tripleo-docs