Add non-voting litmus jobs on CentOS8 Stream

Change-Id: I3ee9d1acedcf87fde404fe9134a46a923114bdcf
(cherry picked from commit f2c60bc1d3)

zuul.d/layout.yaml

@@ -31,6 +31,7 @@
         - puppet-openstack-libraries-puppet-unit-6.14-ubuntu-bionic
         - puppet-openstack-libraries-puppet-unit-latest-ubuntu-bionic
         - puppet-openstack-libraries-litmus-centos-8
+        - puppet-openstack-libraries-litmus-centos-8-stream
         - puppet-openstack-libraries-litmus-ubuntu-bionic
     gate:
       jobs:
@@ -40,6 +41,7 @@
         - puppet-openstack-libraries-puppet-unit-6.14-centos-8
         - puppet-openstack-libraries-puppet-unit-6.14-ubuntu-bionic
         - puppet-openstack-libraries-litmus-centos-8
+        - puppet-openstack-libraries-litmus-centos-8-stream
 
 # integration jobs
 - project-template:

zuul.d/litmus.yaml

@@ -43,6 +43,15 @@
       puppet_gem_version: 6.16
       ceph: nautilus
 
+- job:
+    name: puppet-openstack-litmus-centos-8-stream
+    parent: puppet-openstack-litmus-module-base
+    nodeset: centos-8-stream
+    voting: false
+    vars:
+      puppet_gem_version: 6.16
+      ceph: nautilus
+
 - job:
     name: puppet-openstack-litmus-ubuntu-bionic
     parent: puppet-openstack-litmus-module-base
@@ -58,6 +67,14 @@
     vars:
       puppet_gem_version: 6.18.0
 
+- job:
+    name: puppet-openstack-libraries-litmus-centos-8-stream
+    parent: puppet-openstack-litmus-libraries-base
+    voting: false
+    nodeset: centos-8-stream
+    vars:
+      puppet_gem_version: 6.18.0
+
 - job:
     name: puppet-openstack-libraries-litmus-ubuntu-bionic
     parent: puppet-openstack-litmus-libraries-base
@@ -71,8 +88,10 @@
     check:
       jobs:
         - puppet-openstack-litmus-centos-8
+        - puppet-openstack-litmus-centos-8-stream
         - puppet-openstack-litmus-ubuntu-bionic
     gate:
       jobs:
         - puppet-openstack-litmus-centos-8
+        - puppet-openstack-litmus-centos-8-stream
         - puppet-openstack-litmus-ubuntu-bionic