Remove direct dep on kubernetes

Author: xing-yang

go.mod

@@ -23,7 +23,6 @@ require (
 	k8s.io/component-base v0.28.0
 	k8s.io/component-helpers v0.28.0
 	k8s.io/klog/v2 v2.100.1
-	k8s.io/kubernetes v1.28.0
 )
 
 require (

go.sum

@@ -338,8 +338,6 @@ k8s.io/klog/v2 v2.100.1 h1:7WCHKK6K8fNhTqfBhISHQ97KrnJNFZMcQvKp7gP/tmg=
 k8s.io/klog/v2 v2.100.1/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=
 k8s.io/kube-openapi v0.0.0-20230717233707-2695361300d9 h1:LyMgNKD2P8Wn1iAwQU5OhxCKlKJy0sHc+PcDwFB24dQ=
 k8s.io/kube-openapi v0.0.0-20230717233707-2695361300d9/go.mod h1:wZK2AVp1uHCp4VamDVgBP2COHZjqD1T68Rf0CM3YjSM=
-k8s.io/kubernetes v1.28.0 h1:p8qq/VoNHnBWinLEi5LO2IvCfzFouN7Jhdz8+L++V+U=
-k8s.io/kubernetes v1.28.0/go.mod h1:rBQpjGYlLBV0KuOLw8EG45N5EBCskWiPpi0xy5liHMI=
 k8s.io/utils v0.0.0-20230406110748-d93618cff8a2 h1:qY1Ad8PODbnymg2pRbkyMT/ylpTrCM8P2RJ0yroCyIk=
 k8s.io/utils v0.0.0-20230406110748-d93618cff8a2/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
 sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd h1:EDPBXCAspyGV4jQlpZSudPeMmr1bNJefnuqLsRAsHZo=

pkg/validation-webhook/convert_test.go

@@ -30,11 +30,10 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/serializer"
 	"k8s.io/apimachinery/pkg/util/diff"
-	admissionfuzzer "k8s.io/kubernetes/pkg/apis/admission/fuzzer"
 )
 
 func TestConvertAdmissionRequestToV1(t *testing.T) {
-	f := fuzzer.FuzzerFor(admissionfuzzer.Funcs, rand.NewSource(rand.Int63()), serializer.NewCodecFactory(runtime.NewScheme()))
+	f := fuzzer.FuzzerFor(AdmissionfuzzerFuncs, rand.NewSource(rand.Int63()), serializer.NewCodecFactory(runtime.NewScheme()))
 	for i := 0; i < 100; i++ {
 		t.Run(fmt.Sprintf("Run %d/100", i), func(t *testing.T) {
 			orig := &v1beta1.AdmissionRequest{}

vendor/k8s.io/kubernetes/pkg/apis/admission/fuzzer/fuzzer.go renamed to pkg/validation-webhook/fuzzer.go

@@ -14,7 +14,11 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package fuzzer
+// NOTE: This file is copied from
+// https://github.com/kubernetes/kubernetes/blob/v1.29.0-alpha.0/pkg/apis/admission/fuzzer/fuzzer.go
+// so that external-snapshotter no longer needs to depend on k8s.io/kubernetes
+
+package webhook
 
 import (
 	fuzz "github.com/google/gofuzz"
@@ -25,7 +29,7 @@ import (
 )
 
 // Funcs returns the fuzzer functions for the admission api group.
-var Funcs = func(codecs runtimeserializer.CodecFactory) []interface{} {
+var AdmissionfuzzerFuncs = func(codecs runtimeserializer.CodecFactory) []interface{} {
 	return []interface{}{
 		func(s *runtime.RawExtension, c fuzz.Continue) {
 			u := &unstructured.Unstructured{Object: map[string]interface{}{

vendor/k8s.io/kubernetes/LICENSE

@@ -745,9 +745,6 @@ k8s.io/kube-openapi/pkg/schemamutation
 k8s.io/kube-openapi/pkg/spec3
 k8s.io/kube-openapi/pkg/util/proto
 k8s.io/kube-openapi/pkg/validation/spec
-# k8s.io/kubernetes v1.28.0
-## explicit; go 1.20
-k8s.io/kubernetes/pkg/apis/admission/fuzzer
 # k8s.io/utils v0.0.0-20230406110748-d93618cff8a2
 ## explicit; go 1.18
 k8s.io/utils/buffer