diff --git a/discovery/discovery_client.go b/discovery/discovery_client.go
index a4f083a1..77bf64b5 100644
--- a/discovery/discovery_client.go
+++ b/discovery/discovery_client.go
@@ -19,6 +19,7 @@ package discovery
 import (
 	"context"
 	"encoding/json"
+	goerrors "errors"
 	"fmt"
 	"mime"
 	"net/http"
@@ -422,6 +423,16 @@ func IsGroupDiscoveryFailedError(err error) bool {
 	return err != nil && ok
 }
 
+// GroupDiscoveryFailedErrorGroups returns true if the error is an ErrGroupDiscoveryFailed error,
+// along with the map of group versions that failed discovery.
+func GroupDiscoveryFailedErrorGroups(err error) (map[schema.GroupVersion]error, bool) {
+	var groupDiscoveryError *ErrGroupDiscoveryFailed
+	if err != nil && goerrors.As(err, &groupDiscoveryError) {
+		return groupDiscoveryError.Groups, true
+	}
+	return nil, false
+}
+
 func ServerGroupsAndResources(d DiscoveryInterface) ([]*metav1.APIGroup, []*metav1.APIResourceList, error) {
 	var sgs *metav1.APIGroupList
 	var resources []*metav1.APIResourceList