Dependencies for the affinity router and the
affinity routing daemon.
Change-Id: Icda72c3594ef7f8f0bc0c33dc03087a4c25529ca
diff --git a/vendor/k8s.io/client-go/tools/reference/ref.go b/vendor/k8s.io/client-go/tools/reference/ref.go
new file mode 100644
index 0000000..573d948
--- /dev/null
+++ b/vendor/k8s.io/client-go/tools/reference/ref.go
@@ -0,0 +1,126 @@
+/*
+Copyright 2014 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 reference
+
+import (
+ "errors"
+ "fmt"
+ "net/url"
+ "strings"
+
+ "k8s.io/api/core/v1"
+ "k8s.io/apimachinery/pkg/api/meta"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/apimachinery/pkg/runtime"
+)
+
+var (
+ // Errors that could be returned by GetReference.
+ ErrNilObject = errors.New("can't reference a nil object")
+ ErrNoSelfLink = errors.New("selfLink was empty, can't make reference")
+)
+
+// GetReference returns an ObjectReference which refers to the given
+// object, or an error if the object doesn't follow the conventions
+// that would allow this.
+// TODO: should take a meta.Interface see http://issue.k8s.io/7127
+func GetReference(scheme *runtime.Scheme, obj runtime.Object) (*v1.ObjectReference, error) {
+ if obj == nil {
+ return nil, ErrNilObject
+ }
+ if ref, ok := obj.(*v1.ObjectReference); ok {
+ // Don't make a reference to a reference.
+ return ref, nil
+ }
+
+ gvk := obj.GetObjectKind().GroupVersionKind()
+
+ // if the object referenced is actually persisted, we can just get kind from meta
+ // if we are building an object reference to something not yet persisted, we should fallback to scheme
+ kind := gvk.Kind
+ if len(kind) == 0 {
+ // TODO: this is wrong
+ gvks, _, err := scheme.ObjectKinds(obj)
+ if err != nil {
+ return nil, err
+ }
+ kind = gvks[0].Kind
+ }
+
+ // An object that implements only List has enough metadata to build a reference
+ var listMeta metav1.Common
+ objectMeta, err := meta.Accessor(obj)
+ if err != nil {
+ listMeta, err = meta.CommonAccessor(obj)
+ if err != nil {
+ return nil, err
+ }
+ } else {
+ listMeta = objectMeta
+ }
+
+ // if the object referenced is actually persisted, we can also get version from meta
+ version := gvk.GroupVersion().String()
+ if len(version) == 0 {
+ selfLink := listMeta.GetSelfLink()
+ if len(selfLink) == 0 {
+ return nil, ErrNoSelfLink
+ }
+ selfLinkUrl, err := url.Parse(selfLink)
+ if err != nil {
+ return nil, err
+ }
+ // example paths: /<prefix>/<version>/*
+ parts := strings.Split(selfLinkUrl.Path, "/")
+ if len(parts) < 4 {
+ return nil, fmt.Errorf("unexpected self link format: '%v'; got version '%v'", selfLink, version)
+ }
+ if parts[1] == "api" {
+ version = parts[2]
+ } else {
+ version = parts[2] + "/" + parts[3]
+ }
+ }
+
+ // only has list metadata
+ if objectMeta == nil {
+ return &v1.ObjectReference{
+ Kind: kind,
+ APIVersion: version,
+ ResourceVersion: listMeta.GetResourceVersion(),
+ }, nil
+ }
+
+ return &v1.ObjectReference{
+ Kind: kind,
+ APIVersion: version,
+ Name: objectMeta.GetName(),
+ Namespace: objectMeta.GetNamespace(),
+ UID: objectMeta.GetUID(),
+ ResourceVersion: objectMeta.GetResourceVersion(),
+ }, nil
+}
+
+// GetPartialReference is exactly like GetReference, but allows you to set the FieldPath.
+func GetPartialReference(scheme *runtime.Scheme, obj runtime.Object, fieldPath string) (*v1.ObjectReference, error) {
+ ref, err := GetReference(scheme, obj)
+ if err != nil {
+ return nil, err
+ }
+ ref.FieldPath = fieldPath
+ return ref, nil
+}