Add centos-8 non voting check jobs

Change-Id: I4c85be2308bc6c9a4091fecd35896a1838e41ef8

test-ansible-functional.sh

@@ -88,7 +88,8 @@ function execute_ansible_playbook {
 # on an as-needed basis in the roles where they are required using includepkgs.
 # See the example here:
 # https://opendev.org/openstack/openstack-ansible-lxc_hosts/src/commit/a6cae27fa3e6d03b48ba34468df4af90c77f4880/tasks/lxc_install_yum.yml#L46-L58
-if [[ -x /usr/bin/yum-config-manager ]] && [[ -e /etc/centos-release ]]; then
+source /etc/os-release
+if [[ -x /usr/bin/yum-config-manager ]] && [[ -e /etc/centos-release ]] && [[ ${VERSION_ID} == '7' ]] ; then
   sudo yum-config-manager --disable \* > /dev/null
   sudo yum-config-manager --enable base > /dev/null
   sudo yum-config-manager --enable updates > /dev/null

zuul.d/jobs.yaml

@@ -173,6 +173,12 @@
     parent: openstack-ansible-functional
     nodeset: centos-7
 
+- job:
+    name: openstack-ansible-functional-centos-8
+    parent: openstack-ansible-functional
+    nodeset: centos-8
+    voting: false
+
 - job:
     name: openstack-ansible-upgrade-centos-7
     parent: openstack-ansible-upgrade

zuul.d/project-templates.yaml

@@ -15,6 +15,7 @@
         - openstack-ansible-linters
         - openstack-ansible-functional-debian-buster
         - openstack-ansible-functional-centos-7
+        - openstack-ansible-functional-centos-8
         - openstack-ansible-functional-ubuntu-bionic
     gate:
       jobs: