Add glide.yaml and vendor deps

vendor/k8s.io/kubernetes/plugin/pkg/admission/antiaffinity/admission.go

@@ -0,0 +1,83 @@
+/*
+Copyright 2016 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 antiaffinity
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/golang/glog"
+	"k8s.io/kubernetes/pkg/admission"
+	"k8s.io/kubernetes/pkg/api"
+	apierrors "k8s.io/kubernetes/pkg/api/errors"
+	metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
+	clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
+)
+
+func init() {
+	admission.RegisterPlugin("LimitPodHardAntiAffinityTopology", func(client clientset.Interface, config io.Reader) (admission.Interface, error) {
+		return NewInterPodAntiAffinity(client), nil
+	})
+}
+
+// plugin contains the client used by the admission controller
+type plugin struct {
+	*admission.Handler
+	client clientset.Interface
+}
+
+// NewInterPodAntiAffinity creates a new instance of the LimitPodHardAntiAffinityTopology admission controller
+func NewInterPodAntiAffinity(client clientset.Interface) admission.Interface {
+	return &plugin{
+		Handler: admission.NewHandler(admission.Create, admission.Update),
+		client:  client,
+	}
+}
+
+// Admit will deny any pod that defines AntiAffinity topology key other than metav1.LabelHostname i.e. "kubernetes.io/hostname"
+// in  requiredDuringSchedulingRequiredDuringExecution and requiredDuringSchedulingIgnoredDuringExecution.
+func (p *plugin) Admit(attributes admission.Attributes) (err error) {
+	// Ignore all calls to subresources or resources other than pods.
+	if len(attributes.GetSubresource()) != 0 || attributes.GetResource().GroupResource() != api.Resource("pods") {
+		return nil
+	}
+	pod, ok := attributes.GetObject().(*api.Pod)
+	if !ok {
+		return apierrors.NewBadRequest("Resource was marked with kind Pod but was unable to be converted")
+	}
+	affinity, err := api.GetAffinityFromPodAnnotations(pod.Annotations)
+	if err != nil {
+		glog.V(5).Infof("Invalid Affinity detected, but we will leave handling of this to validation phase")
+		return nil
+	}
+	if affinity != nil && affinity.PodAntiAffinity != nil {
+		var podAntiAffinityTerms []api.PodAffinityTerm
+		if len(affinity.PodAntiAffinity.RequiredDuringSchedulingIgnoredDuringExecution) != 0 {
+			podAntiAffinityTerms = affinity.PodAntiAffinity.RequiredDuringSchedulingIgnoredDuringExecution
+		}
+		// TODO: Uncomment this block when implement RequiredDuringSchedulingRequiredDuringExecution.
+		//if len(affinity.PodAntiAffinity.RequiredDuringSchedulingRequiredDuringExecution) != 0 {
+		//        podAntiAffinityTerms = append(podAntiAffinityTerms, affinity.PodAntiAffinity.RequiredDuringSchedulingRequiredDuringExecution...)
+		//}
+		for _, v := range podAntiAffinityTerms {
+			if v.TopologyKey != metav1.LabelHostname {
+				return apierrors.NewForbidden(attributes.GetResource().GroupResource(), pod.Name, fmt.Errorf("affinity.PodAntiAffinity.RequiredDuringScheduling has TopologyKey %v but only key %v is allowed", v.TopologyKey, metav1.LabelHostname))
+			}
+		}
+	}
+	return nil
+}