use istio client-go library instead of knative (#1661)

use istio client-go library instead of knative
bump kubernetes dependency version
change code coverage to codecov

vendor/k8s.io/apiserver/pkg/registry/rest/rest.go

@@ -148,6 +148,7 @@ type TableConvertor interface {
 // RESTful object.
 type GracefulDeleter interface {
 	// Delete finds a resource in the storage and deletes it.
+	// The delete attempt is validated by the deleteValidation first.
 	// If options are provided, the resource will attempt to honor them or return an invalid
 	// request error.
 	// Although it can return an arbitrary error value, IsNotFound(err) is true for the
@@ -156,18 +157,19 @@ type GracefulDeleter interface {
 	// information about deletion.
 	// It also returns a boolean which is set to true if the resource was instantly
 	// deleted or false if it will be deleted asynchronously.
-	Delete(ctx context.Context, name string, options *metav1.DeleteOptions) (runtime.Object, bool, error)
+	Delete(ctx context.Context, name string, deleteValidation ValidateObjectFunc, options *metav1.DeleteOptions) (runtime.Object, bool, error)
 }
 
 // CollectionDeleter is an object that can delete a collection
 // of RESTful resources.
 type CollectionDeleter interface {
 	// DeleteCollection selects all resources in the storage matching given 'listOptions'
-	// and deletes them. If 'options' are provided, the resource will attempt to honor
-	// them or return an invalid request error.
+	// and deletes them. The delete attempt is validated by the deleteValidation first.
+	// If 'options' are provided, the resource will attempt to honor them or return an
+	// invalid request error.
 	// DeleteCollection may not be atomic - i.e. it may delete some objects and still
 	// return an error after it. On success, returns a list of deleted objects.
-	DeleteCollection(ctx context.Context, options *metav1.DeleteOptions, listOptions *metainternalversion.ListOptions) (runtime.Object, error)
+	DeleteCollection(ctx context.Context, deleteValidation ValidateObjectFunc, options *metav1.DeleteOptions, listOptions *metainternalversion.ListOptions) (runtime.Object, error)
 }
 
 // Creater is an object that can create an instance of a RESTful object.
@@ -176,8 +178,7 @@ type Creater interface {
 	// This object must be a pointer type for use with Codec.DecodeInto([]byte, runtime.Object)
 	New() runtime.Object
 
-	// Create creates a new version of a resource. If includeUninitialized is set, the object may be returned
-	// without completing initialization.
+	// Create creates a new version of a resource.
 	Create(ctx context.Context, obj runtime.Object, createValidation ValidateObjectFunc, options *metav1.CreateOptions) (runtime.Object, error)
 }
 
@@ -189,8 +190,7 @@ type NamedCreater interface {
 
 	// Create creates a new version of a resource. It expects a name parameter from the path.
 	// This is needed for create operations on subresources which include the name of the parent
-	// resource in the path. If includeUninitialized is set, the object may be returned without
-	// completing initialization.
+	// resource in the path.
 	Create(ctx context.Context, name string, obj runtime.Object, createValidation ValidateObjectFunc, options *metav1.CreateOptions) (runtime.Object, error)
 }
 
@@ -210,20 +210,20 @@ type UpdatedObjectInfo interface {
 // ValidateObjectFunc is a function to act on a given object. An error may be returned
 // if the hook cannot be completed. An ObjectFunc may NOT transform the provided
 // object.
-type ValidateObjectFunc func(obj runtime.Object) error
+type ValidateObjectFunc func(ctx context.Context, obj runtime.Object) error
 
 // ValidateAllObjectFunc is a "admit everything" instance of ValidateObjectFunc.
-func ValidateAllObjectFunc(obj runtime.Object) error {
+func ValidateAllObjectFunc(ctx context.Context, obj runtime.Object) error {
 	return nil
 }
 
 // ValidateObjectUpdateFunc is a function to act on a given object and its predecessor.
 // An error may be returned if the hook cannot be completed. An UpdateObjectFunc
 // may NOT transform the provided object.
-type ValidateObjectUpdateFunc func(obj, old runtime.Object) error
+type ValidateObjectUpdateFunc func(ctx context.Context, obj, old runtime.Object) error
 
 // ValidateAllObjectUpdateFunc is a "admit everything" instance of ValidateObjectUpdateFunc.
-func ValidateAllObjectUpdateFunc(obj, old runtime.Object) error {
+func ValidateAllObjectUpdateFunc(ctx context.Context, obj, old runtime.Object) error {
 	return nil
 }
 
@@ -334,3 +334,12 @@ type StorageMetadata interface {
 	// it is not nil. Only the type of the return object matters, the value will be ignored.
 	ProducesObject(verb string) interface{}
 }
+
+// StorageVersionProvider is an optional interface that a storage object can
+// implement if it wishes to disclose its storage version.
+type StorageVersionProvider interface {
+	// StorageVersion returns a group versioner, which will outputs the gvk
+	// an object will be converted to before persisted in etcd, given a
+	// list of kinds the object might belong to.
+	StorageVersion() runtime.GroupVersioner
+}