Update Rocky Prometheus image version

Ubuntu image build failed.

Also includes a new method for setting the tag variables that should reduce maintenance burden.

Author: markgoddard

etc/kayobe/environments/ci-multinode/globals.yml

@@ -63,7 +63,7 @@ stackhpc_barbican_role_id_file_path: "/tmp/barbican-role-id"
 ###############################################################################
 
 # Avoid a reboot.
-selinux_do_reboot: false
+selinux_state: disabled
 
 ###############################################################################
 # Dummy variable to allow Ansible to accept this file.

etc/kayobe/kolla/globals.yml

@@ -14,8 +14,13 @@ kayobe_image_tags:
   openstack:
     rocky: zed-rocky-9-20230821T155947
     ubuntu: zed-ubuntu-jammy-20230821T155947
+  prometheus:
+    rocky: zed-rocky-9-20230913T160425
 
 openstack_tag: "{% raw %}{{ kayobe_image_tags['openstack'][kolla_base_distro] }}{% endraw %}"
+{% for tag in kayobe_image_tags %}
+{{ tag }}_tag: "{% raw %}{{ kayobe_image_tags['{% endraw %}{{ tag }}{% raw %}'][kolla_base_distro] | default(openstack_tag) }}{% endraw %}"
+{% endfor %}
 
 om_enable_rabbitmq_high_availability: true