export ENABLE_POD_PRIORITY_PREEMPTION=true to enable Pod priority and preemption

hack/local-up-cluster.sh

@@ -71,6 +71,8 @@ FEATURE_GATES=${FEATURE_GATES:-"AllAlpha=false"}
 STORAGE_BACKEND=${STORAGE_BACKEND:-"etcd3"}
 # enable swagger ui
 ENABLE_SWAGGER_UI=${ENABLE_SWAGGER_UI:-false}
+# enable Pod priority and preemption
+ENABLE_POD_PRIORITY_PREEMPTION=${ENABLE_POD_PRIORITY_PREEMPTION:-""}
 
 # enable kubernetes dashboard
 ENABLE_CLUSTER_DASHBOARD=${KUBE_ENABLE_CLUSTER_DASHBOARD:-false}
@@ -115,11 +117,16 @@ if [ "${CLOUD_PROVIDER}" == "openstack" ]; then
     fi
 fi
 
-#set feature gates if using ipvs mode
+# set feature gates if using ipvs mode
 if [ "${KUBEPROXY_MODE}" == "ipvs" ]; then
     FEATURE_GATES="$FEATURE_GATES,SupportIPVSProxyMode=true"
 fi
 
+# set feature gates if enable Pod priority and preemption
+if [ "${ENABLE_POD_PRIORITY_PREEMPTION}" == true ]; then
+    FEATURE_GATES="$FEATURE_GATES,PodPriority=true"
+fi
+
 # warn if users are running with swap allowed
 if [ "${FAIL_SWAP_ON}" == "false" ]; then
     echo "WARNING : The kubelet is configured to not fail if swap is enabled; production deployments should disable swap."
@@ -417,6 +424,14 @@ function start_apiserver {
     if [[ -n "${NODE_ADMISSION}" ]]; then
       security_admission=",NodeRestriction"
     fi
+    if [ "${ENABLE_POD_PRIORITY_PREEMPTION}" == true ]; then
+      security_admission=",Priority"
+      if [[ -n "${RUNTIME_CONFIG}" ]]; then
+          RUNTIME_CONFIG+=","
+      fi
+      RUNTIME_CONFIG+="scheduling.k8s.io/v1alpha1=true"
+    fi
+    
 
     # Admission Controllers to invoke prior to persisting objects in cluster
     ADMISSION_CONTROL=MutatingAdmissionWebhook,Initializers,NamespaceLifecycle,LimitRanger,ServiceAccount${security_admission},DefaultStorageClass,DefaultTolerationSeconds,ValidatingAdmissionWebhook,ResourceQuota