Move all CS9 jobs to non-voting

With the upcoming support removal for Python 3.9 we can't
guarantee that CentOS Stream 9 jobs will keep working.
Moving all of them to non-voting and deprecating support.

Change-Id: Ibaf56d9460ef34922fe32e63680c58c42c59ac4b
Signed-off-by: Riccardo Pittau <[email protected]>

Author: elfosardo

doc/source/install/index.rst

@@ -14,14 +14,13 @@ Supported operating systems
 
 Full support (fully tested in the CI, no known or potential issues):
 
-* CentOS Stream 9
-
-  .. note::
-     RHEL 9 and derivatives are assumed to work but not tested explicitly.
-
 * Ubuntu 22.04 "Jammy" and 24.04 "Noble"
 * Debian 11 "Bullseye" and 12 "Bookworm"
 
+Deprecated support:
+
+* CentOS Stream 9
+
 .. note::
    Operating systems evolve and so does the support for them, even on stable
    branches.

releasenotes/notes/cs9deprecation-cf13061ef2b2419a.yaml

@@ -0,0 +1,7 @@
+---
+deprecations:
+  - |
+    With the upcoming support removal for Python 3.9 we can't
+    guarantee that CentOS Stream 9 jobs will keep working.
+    CentOS Stream 9 support is considered deprecated and it
+    will be removed with no further notice.

zuul.d/project.yaml

@@ -7,7 +7,6 @@
     check:
       jobs:
         - bifrost-tox-linters
-        - bifrost-integration-tinyipa-centos-9
         - bifrost-integration-tinyipa-ubuntu-noble
         - bifrost-integration-tinyipa-ubuntu-jammy
         - bifrost-integration-tinyipa-keystone-ubuntu-noble
@@ -16,12 +15,16 @@
         - bifrost-integration-tinyipa-debian-bullseye
         - bifrost-integration-redfish-vmedia-uefi-ubuntu-noble
         - bifrost-integration-redfish-vmedia-uefi-ubuntu-jammy
-        - bifrost-integration-redfish-vmedia-uefi-centos-9
         - bifrost-integration-redfish-vmedia-uefi-debian-bookworm
-        - bifrost-integration-inspector-centos-9
         - bifrost-integration-inspector-ubuntu-jammy
         - bifrost-upgrade-ubuntu-jammy
         # Non-voting jobs
+        - bifrost-integration-tinyipa-centos-9:
+            voting: false
+        - bifrost-integration-inspector-centos-9:
+            voting: false
+        - bifrost-integration-redfish-vmedia-uefi-centos-9:
+            voting: false
         - bifrost-integration-tinyipa-keystone-centos-9:
             voting: false
         - bifrost-upgrade-keystone-centos9:
@@ -67,7 +70,6 @@
     gate:
       jobs:
         - bifrost-tox-linters
-        - bifrost-integration-tinyipa-centos-9
         - bifrost-integration-tinyipa-ubuntu-noble
         - bifrost-integration-tinyipa-ubuntu-jammy
         - bifrost-integration-tinyipa-keystone-ubuntu-noble
@@ -76,9 +78,7 @@
         - bifrost-integration-tinyipa-debian-bullseye
         - bifrost-integration-redfish-vmedia-uefi-ubuntu-noble
         - bifrost-integration-redfish-vmedia-uefi-ubuntu-jammy
-        - bifrost-integration-redfish-vmedia-uefi-centos-9
         - bifrost-integration-redfish-vmedia-uefi-debian-bookworm
-        - bifrost-integration-inspector-centos-9
         - bifrost-integration-inspector-ubuntu-jammy
         - bifrost-upgrade-ubuntu-jammy
     experimental: