Enable {priority,runtime}ClassName for Horizon

Change-Id: Idf39761d053be67dcd7165ca93699a25ecb53555
(cherry picked from commit 6be0a4838dee3a441fa159d1e75f88a49b3f685b)
diff --git a/charts/horizon/templates/deployment.yaml b/charts/horizon/templates/deployment.yaml
index 0037fef..666edd6 100644
--- a/charts/horizon/templates/deployment.yaml
+++ b/charts/horizon/templates/deployment.yaml
@@ -48,6 +48,12 @@
 {{- end }}
 {{ dict "envAll" $envAll "podName" "horizon" "containerNames" (list "horizon" "init" ) | include "helm-toolkit.snippets.kubernetes_mandatory_access_control_annotation" | indent 8 }}
     spec:
+{{ with .Values.pod.priorityClassName.horizon }}
+      priorityClassName: {{ . }}
+{{ end }}
+{{ with .Values.pod.runtimeClassName.horizon }}
+      runtimeClassName: {{ . }}
+{{ end }}
       serviceAccountName: {{ $serviceAccountName }}
 {{ dict "envAll" $envAll "application" "horizon" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
       affinity:
diff --git a/charts/horizon/templates/job-db-sync.yaml b/charts/horizon/templates/job-db-sync.yaml
index c2229cd..8ae8643 100644
--- a/charts/horizon/templates/job-db-sync.yaml
+++ b/charts/horizon/templates/job-db-sync.yaml
@@ -41,6 +41,12 @@
       annotations:
 {{ dict "envAll" $envAll "podName" "horizon-db-sync" "containerNames" (list "horizon-db-sync" "init" ) | include "helm-toolkit.snippets.kubernetes_mandatory_access_control_annotation" | indent 8 }}
     spec:
+{{ with .Values.pod.priorityClassName.db_sync }}
+      priorityClassName: {{ . }}
+{{ end }}
+{{ with .Values.pod.runtimeClassName.db_sync }}
+      runtimeClassName: {{ . }}
+{{ end }}
       serviceAccountName: {{ $serviceAccountName }}
 {{ dict "envAll" $envAll "application" "db_sync" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
       restartPolicy: OnFailure
diff --git a/charts/horizon/templates/pod-helm-tests.yaml b/charts/horizon/templates/pod-helm-tests.yaml
index 7d16303..4513053 100644
--- a/charts/horizon/templates/pod-helm-tests.yaml
+++ b/charts/horizon/templates/pod-helm-tests.yaml
@@ -34,6 +34,12 @@
 spec:
 {{ dict "envAll" $envAll "application" "test" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 2 }}
   restartPolicy: Never
+{{ with .Values.pod.priorityClassName.horizon_tests }}
+  priorityClassName: {{ . }}
+{{ end }}
+{{ with .Values.pod.runtimeClassName.horizon_tests }}
+  runtimeClassName: {{ . }}
+{{ end }}
   serviceAccountName: {{ $serviceAccountName }}
 {{ if $envAll.Values.pod.tolerations.horizon.enabled }}
 {{ tuple $envAll "horizon" | include "helm-toolkit.snippets.kubernetes_tolerations" | indent 2 }}
diff --git a/charts/horizon/values.yaml b/charts/horizon/values.yaml
index 4a06045..b3782c5 100644
--- a/charts/horizon/values.yaml
+++ b/charts/horizon/values.yaml
@@ -1103,6 +1103,14 @@
           service: dashboard
 
 pod:
+  priorityClassName:
+    horizon: null
+    horizon_tests: null
+    db_sync: null
+  runtimeClassName:
+    horizon: null
+    horizon_tests: null
+    db_sync: null
   security_context:
     horizon:
       pod:
diff --git a/charts/patches/horizon/0004-Enable-priority-runtime-ClassName-for-Horizon.patch b/charts/patches/horizon/0004-Enable-priority-runtime-ClassName-for-Horizon.patch
new file mode 100644
index 0000000..12f018f
--- /dev/null
+++ b/charts/patches/horizon/0004-Enable-priority-runtime-ClassName-for-Horizon.patch
@@ -0,0 +1,85 @@
+From 2db1eab6b5df7070e93d11cbbbcd492aa849ad9c Mon Sep 17 00:00:00 2001
+From: Dong Ma <dong.ma@vexxhost.com>
+Date: Mon, 10 Feb 2025 13:14:30 +0000
+Subject: [PATCH] Enable {priority,runtime}ClassName for Horizon
+
+---
+ horizon/templates/deployment.yaml     | 6 ++++++
+ horizon/templates/job-db-sync.yaml    | 6 ++++++
+ horizon/templates/pod-helm-tests.yaml | 6 ++++++
+ horizon/values.yaml                   | 8 ++++++++
+ 4 files changed, 26 insertions(+)
+
+diff --git a/horizon/templates/deployment.yaml b/horizon/templates/deployment.yaml
+index 0037fef3..666edd65 100644
+--- a/horizon/templates/deployment.yaml
++++ b/horizon/templates/deployment.yaml
+@@ -48,6 +48,12 @@ spec:
+ {{- end }}
+ {{ dict "envAll" $envAll "podName" "horizon" "containerNames" (list "horizon" "init" ) | include "helm-toolkit.snippets.kubernetes_mandatory_access_control_annotation" | indent 8 }}
+     spec:
++{{ with .Values.pod.priorityClassName.horizon }}
++      priorityClassName: {{ . }}
++{{ end }}
++{{ with .Values.pod.runtimeClassName.horizon }}
++      runtimeClassName: {{ . }}
++{{ end }}
+       serviceAccountName: {{ $serviceAccountName }}
+ {{ dict "envAll" $envAll "application" "horizon" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
+       affinity:
+diff --git a/horizon/templates/job-db-sync.yaml b/horizon/templates/job-db-sync.yaml
+index c2229cdd..8ae8643f 100644
+--- a/horizon/templates/job-db-sync.yaml
++++ b/horizon/templates/job-db-sync.yaml
+@@ -41,6 +41,12 @@ spec:
+       annotations:
+ {{ dict "envAll" $envAll "podName" "horizon-db-sync" "containerNames" (list "horizon-db-sync" "init" ) | include "helm-toolkit.snippets.kubernetes_mandatory_access_control_annotation" | indent 8 }}
+     spec:
++{{ with .Values.pod.priorityClassName.db_sync }}
++      priorityClassName: {{ . }}
++{{ end }}
++{{ with .Values.pod.runtimeClassName.db_sync }}
++      runtimeClassName: {{ . }}
++{{ end }}
+       serviceAccountName: {{ $serviceAccountName }}
+ {{ dict "envAll" $envAll "application" "db_sync" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
+       restartPolicy: OnFailure
+diff --git a/horizon/templates/pod-helm-tests.yaml b/horizon/templates/pod-helm-tests.yaml
+index 7d163039..4513053b 100644
+--- a/horizon/templates/pod-helm-tests.yaml
++++ b/horizon/templates/pod-helm-tests.yaml
+@@ -34,6 +34,12 @@ metadata:
+ spec:
+ {{ dict "envAll" $envAll "application" "test" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 2 }}
+   restartPolicy: Never
++{{ with .Values.pod.priorityClassName.horizon_tests }}
++  priorityClassName: {{ . }}
++{{ end }}
++{{ with .Values.pod.runtimeClassName.horizon_tests }}
++  runtimeClassName: {{ . }}
++{{ end }}
+   serviceAccountName: {{ $serviceAccountName }}
+ {{ if $envAll.Values.pod.tolerations.horizon.enabled }}
+ {{ tuple $envAll "horizon" | include "helm-toolkit.snippets.kubernetes_tolerations" | indent 2 }}
+diff --git a/horizon/values.yaml b/horizon/values.yaml
+index 4a060452..b3782c57 100644
+--- a/horizon/values.yaml
++++ b/horizon/values.yaml
+@@ -1103,6 +1103,14 @@ dependencies:
+           service: dashboard
+ 
+ pod:
++  priorityClassName:
++    horizon: null
++    horizon_tests: null
++    db_sync: null
++  runtimeClassName:
++    horizon: null
++    horizon_tests: null
++    db_sync: null
+   security_context:
+     horizon:
+       pod:
+-- 
+2.34.1
+
diff --git a/releasenotes/notes/horizon-priority-runtime-class-0004e6be3fdeab2b.yaml b/releasenotes/notes/horizon-priority-runtime-class-0004e6be3fdeab2b.yaml
new file mode 100644
index 0000000..a6a4437
--- /dev/null
+++ b/releasenotes/notes/horizon-priority-runtime-class-0004e6be3fdeab2b.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - The Horizon role now allows users to configure the ``priorityClassName`` and
+    the ``runtimeClassName`` for all of the different components of the service.
diff --git a/roles/horizon/tests/priorityclass_test.yaml b/roles/horizon/tests/priorityclass_test.yaml
new file mode 100644
index 0000000..a0fda2b
--- /dev/null
+++ b/roles/horizon/tests/priorityclass_test.yaml
@@ -0,0 +1,48 @@
+suite: priorityclass
+tests:
+  - it: should support not having a priority class
+    templates:
+      - templates/deployment.yaml
+      - templates/pod-helm-tests.yaml
+      - templates/job-db-sync.yaml
+    asserts:
+      - template: templates/deployment.yaml
+        documentIndex: 3
+        notExists:
+          path: spec.template.spec.priorityClassName
+      - template: templates/pod-helm-tests.yaml
+        documentIndex: 3
+        notExists:
+          path: spec.priorityClassName
+      - template: templates/job-db-sync.yaml
+        documentIndex: 3
+        notExists:
+          path: spec.template.spec.priorityClassName
+
+  - it: should support setting a priority class
+    templates:
+      - templates/deployment.yaml
+      - templates/pod-helm-tests.yaml
+      - templates/job-db-sync.yaml
+    set:
+      pod:
+        priorityClassName:
+          horizon: platform
+          horizon_tests: platform
+          db_sync: platform
+    asserts:
+      - template: templates/deployment.yaml
+        documentIndex: 3
+        equal:
+          path: spec.template.spec.priorityClassName
+          value: platform
+      - template: templates/pod-helm-tests.yaml
+        documentIndex: 3
+        equal:
+          path: spec.priorityClassName
+          value: platform
+      - template: templates/job-db-sync.yaml
+        documentIndex: 3
+        equal:
+          path: spec.template.spec.priorityClassName
+          value: platform
diff --git a/roles/horizon/tests/runtimeclass_test.yaml b/roles/horizon/tests/runtimeclass_test.yaml
new file mode 100644
index 0000000..ebeb976
--- /dev/null
+++ b/roles/horizon/tests/runtimeclass_test.yaml
@@ -0,0 +1,48 @@
+suite: runtimeclass
+tests:
+  - it: should support not having a runtime class
+    templates:
+      - templates/deployment.yaml
+      - templates/pod-helm-tests.yaml
+      - templates/job-db-sync.yaml
+    asserts:
+      - template: templates/deployment.yaml
+        documentIndex: 3
+        notExists:
+          path: spec.template.spec.runtimeClassName
+      - template: templates/pod-helm-tests.yaml
+        documentIndex: 3
+        notExists:
+          path: spec.runtimeClassName
+      - template: templates/job-db-sync.yaml
+        documentIndex: 3
+        notExists:
+          path: spec.template.spec.runtimeClassName
+
+  - it: should support setting a runtime class
+    templates:
+      - templates/deployment.yaml
+      - templates/pod-helm-tests.yaml
+      - templates/job-db-sync.yaml
+    set:
+      pod:
+        runtimeClassName:
+          horizon: kata-clh
+          horizon_tests: kata-clh
+          db_sync: kata-clh
+    asserts:
+      - template: templates/deployment.yaml
+        documentIndex: 3
+        equal:
+          path: spec.template.spec.runtimeClassName
+          value: kata-clh
+      - template: templates/pod-helm-tests.yaml
+        documentIndex: 3
+        equal:
+          path: spec.runtimeClassName
+          value: kata-clh
+      - template: templates/job-db-sync.yaml
+        documentIndex: 3
+        equal:
+          path: spec.template.spec.runtimeClassName
+          value: kata-clh