Split out AdmissionOptions

In the long term AdmissionOptions will accepts various dependencies
and spit out AdmissionControl

Kubernetes-commit: de9706bc15ffc3a6a4ef30a00d5c7ea9a8881396

pkg/server/options/admission.go

@@ -0,0 +1,49 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package options
+
+import (
+	"strings"
+
+	"github.com/spf13/pflag"
+	"k8s.io/apiserver/pkg/admission"
+)
+
+// AdmissionOptions holds the admission options
+type AdmissionOptions struct {
+	Control           string
+	ControlConfigFile string
+	Plugins           *admission.Plugins
+}
+
+// NewAdmissionOptions creates a new instance of AdmissionOptions
+func NewAdmissionOptions(plugins *admission.Plugins) *AdmissionOptions {
+	return &AdmissionOptions{
+		Plugins: plugins,
+		Control: "AlwaysAdmit",
+	}
+}
+
+// AddFlags adds flags related to admission for a specific APIServer to the specified FlagSet
+func (a *AdmissionOptions) AddFlags(fs *pflag.FlagSet) {
+	fs.StringVar(&a.Control, "admission-control", a.Control, ""+
+		"Ordered list of plug-ins to do admission control of resources into cluster. "+
+		"Comma-delimited list of: "+strings.Join(a.Plugins.Registered(), ", ")+".")
+
+	fs.StringVar(&a.ControlConfigFile, "admission-control-config-file", a.ControlConfigFile,
+		"File with admission control configuration.")
+}

pkg/server/options/server_run_options.go

@@ -19,11 +19,9 @@ package options
 import (
 	"fmt"
 	"net"
-	"strings"
 
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime/serializer"
-	"k8s.io/apiserver/pkg/admission"
 	"k8s.io/apiserver/pkg/server"
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 
@@ -35,9 +33,7 @@ import (
 
 // ServerRunOptions contains the options while running a generic api server.
 type ServerRunOptions struct {
-	AdmissionControl           string
-	AdmissionControlConfigFile string
-	AdvertiseAddress           net.IP
+	AdvertiseAddress net.IP
 
 	CorsAllowedOriginList       []string
 	ExternalHost                string
@@ -46,18 +42,14 @@ type ServerRunOptions struct {
 	MinRequestTimeout           int
 	TargetRAMMB                 int
 	WatchCacheSizes             []string
-
-	AdmissionPlugins *admission.Plugins
 }
 
-func NewServerRunOptions(admissionPlugins *admission.Plugins) *ServerRunOptions {
+func NewServerRunOptions() *ServerRunOptions {
 	defaults := server.NewConfig(serializer.CodecFactory{})
 	return &ServerRunOptions{
-		AdmissionControl:            "AlwaysAdmit",
 		MaxRequestsInFlight:         defaults.MaxRequestsInFlight,
 		MaxMutatingRequestsInFlight: defaults.MaxMutatingRequestsInFlight,
 		MinRequestTimeout:           defaults.MinRequestTimeout,
-		AdmissionPlugins:            admissionPlugins,
 	}
 }
 
@@ -96,13 +88,6 @@ func (s *ServerRunOptions) AddUniversalFlags(fs *pflag.FlagSet) {
 	// Note: the weird ""+ in below lines seems to be the only way to get gofmt to
 	// arrange these text blocks sensibly. Grrr.
 
-	fs.StringVar(&s.AdmissionControl, "admission-control", s.AdmissionControl, ""+
-		"Ordered list of plug-ins to do admission control of resources into cluster. "+
-		"Comma-delimited list of: "+strings.Join(s.AdmissionPlugins.Registered(), ", ")+".")
-
-	fs.StringVar(&s.AdmissionControlConfigFile, "admission-control-config-file", s.AdmissionControlConfigFile,
-		"File with admission control configuration.")
-
 	fs.IPVar(&s.AdvertiseAddress, "advertise-address", s.AdvertiseAddress, ""+
 		"The IP address on which to advertise the apiserver to members of the cluster. This "+
 		"address must be reachable by the rest of the cluster. If blank, the --bind-address "+