Add e2e test for skipping attach

test/e2e/framework/framework.go

@@ -42,6 +42,7 @@ import (
 	"k8s.io/client-go/restmapper"
 	scaleclient "k8s.io/client-go/scale"
 	"k8s.io/client-go/tools/clientcmd"
+	csi "k8s.io/csi-api/pkg/client/clientset/versioned"
 	aggregatorclient "k8s.io/kube-aggregator/pkg/client/clientset_generated/clientset"
 	"k8s.io/kubernetes/pkg/api/legacyscheme"
 	"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
@@ -67,6 +68,7 @@ type Framework struct {
 
 	ClientSet                        clientset.Interface
 	KubemarkExternalClusterClientSet clientset.Interface
+	CSIClientSet                     csi.Interface
 
 	InternalClientset *internalclientset.Clientset
 	AggregatorClient  *aggregatorclient.Clientset
@@ -181,6 +183,11 @@ func (f *Framework) BeforeEach() {
 		Expect(err).NotTo(HaveOccurred())
 		f.DynamicClient, err = dynamic.NewForConfig(config)
 		Expect(err).NotTo(HaveOccurred())
+		// csi.storage.k8s.io is based on CRD, which is served only as JSON
+		jsonConfig := config
+		jsonConfig.ContentType = "application/json"
+		f.CSIClientSet, err = csi.NewForConfig(jsonConfig)
+		Expect(err).NotTo(HaveOccurred())
 
 		// create scales getter, set GroupVersion and NegotiatedSerializer to default values
 		// as they are required when creating a REST client.