adding priority class support for argo-server and workflow-controller deployments

charts/argo/templates/server-deployment.yaml

@@ -25,6 +25,8 @@ spec:
       annotations:
 {{ toYaml .Values.server.podAnnotations | indent 8}}{{- end }}
     spec:
+      {{- if .Values.server.priorityClassName }}
+      priorityClassName: {{ .Values.server.priorityClassName | quote }}
       serviceAccountName: {{ .Values.server.serviceAccount | quote }}
       containers:
         - name: argo-server

charts/argo/templates/workflow-controller-deployment.yaml

@@ -25,6 +25,8 @@ spec:
       annotations:
 {{ toYaml .Values.controller.podAnnotations | indent 8}}{{- end }}
     spec:
+      {{- if .Values.controller.priorityClassName }}
+      priorityClassName: {{ .Values.controller.priorityClassName | quote }}
       serviceAccountName: {{ .Values.controller.serviceAccount | quote }}
       containers:
         - name: controller

charts/argo/values.yaml

@@ -108,6 +108,8 @@ controller:
   nodeSelector: {}
   tolerations: []
   affinity: {}
+  ## Replace system_priority_class with your priorityClassName. See https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
+  priorityClassName: system_priority_class
 
 # executor controls how the init and wait container should be customized
 executor:
@@ -218,6 +220,8 @@ server:
     #   key: client-secret
     ## The OIDC redirect URL. Should be in the form <argo-root-url>/oauth2/callback.
     # redirectUrl: https://argo/oauth2/callback
+  ## Replace system_priority_class with your priorityClassName. See https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
+  priorityClassName: system_priority_class
 
 # Influences the creation of the ConfigMap for the workflow-controller itself.
 useDefaultArtifactRepo: false