UPSTREAM: <carry>: hardcoded restmapper with a few entries to reboots…

…trap SDN when SDN is down

UPSTREAM: <carry>: use hardcoded rest mapper from library-go

OpenShift-Rebase-Source: a00f75d

staging/src/k8s.io/apiserver/pkg/server/options/admission.go

@@ -154,7 +154,7 @@ func (a *AdmissionOptions) ApplyTo(
 	discoveryClient := cacheddiscovery.NewMemCacheClient(kubeClient.Discovery())
 	discoveryRESTMapper := restmapper.NewDeferredDiscoveryRESTMapper(discoveryClient)
 	genericInitializer := initializer.New(kubeClient, dynamicClient, informers, c.Authorization.Authorizer, features,
-		c.DrainedNotify(), discoveryRESTMapper)
+		c.DrainedNotify(), NewAdmissionRESTMapper(discoveryRESTMapper))
 	initializersChain := admission.PluginInitializers{genericInitializer}
 	initializersChain = append(initializersChain, pluginInitializers...)
 

staging/src/k8s.io/apiserver/pkg/server/options/patch_restmapper.go

@@ -0,0 +1,11 @@
+package options
+
+import (
+	"k8s.io/apimachinery/pkg/api/meta"
+
+	"github.com/openshift/library-go/pkg/client/openshiftrestmapper"
+)
+
+func NewAdmissionRESTMapper(delegate meta.RESTMapper) meta.RESTMapper {
+	return openshiftrestmapper.NewOpenShiftHardcodedRESTMapper(delegate)
+}