add basic standalone job w/ validate-services true

* Parent off the basic tripleo standalone job
* turn on validate services
* Ensure changes to repo build via rpm

Related-Bug: #1923091
Depends-On: https://review.opendev.org/c/openstack/tripleo-validations/+/785722
Change-Id: I1a07b92b2e3ddd7f20af2655315491c3d6b927b3
Signed-off-by: Jiri Podivin <jpodivin@redhat.com>

.zuul.yaml

@@ -31,6 +31,15 @@
     timeout: 1800
     voting: true
 
+- job:
+    name: tripleo-ci-centos-8-standalone-validation-common
+    parent: tripleo-ci-centos-8-standalone
+    vars:
+      featureset: '052'
+      validate_services: true
+      enable_validation: true
+      component: validation
+
 - project:
     templates:
       - check-requirements
@@ -41,6 +50,19 @@
         - openstack-tox-linters
         - openstack-tox-cover
         - validations-common-functional
+        - tripleo-ci-centos-8-content-provider:
+            dependencies:
+              - openstack-tox-linters
+              - openstack-tox-cover
+              - validations-common-functional
+        - tripleo-ci-centos-8-standalone-validation-common:
+            vars: &consumer_vars
+              consumer_job: true
+              build_container_images: false
+              remove_tags:
+                - build
+            dependencies:
+              - tripleo-ci-centos-8-content-provider
         - openstack-tox-docs: &tripleo-docs
             files:
               - ^doc/.*
@@ -49,6 +71,14 @@
       jobs:
         - openstack-tox-linters
         - validations-common-functional
+        - tripleo-ci-centos-8-content-provider:
+            dependencies:
+              - openstack-tox-linters
+              - validations-common-functional
+        - tripleo-ci-centos-8-standalone-validation-common:
+            vars: *consumer_vars
+            dependencies:
+              - tripleo-ci-centos-8-content-provider
         - openstack-tox-docs: *tripleo-docs
     promote:
       jobs: