rbac deny output for e2e tests

plugin/pkg/auth/authorizer/rbac/BUILD

@@ -21,6 +21,7 @@ go_library(
         "//pkg/auth/authorizer:go_default_library",
         "//pkg/auth/user:go_default_library",
         "//pkg/util/errors:go_default_library",
+        "//vendor:github.com/golang/glog",
     ],
 )
 

plugin/pkg/auth/authorizer/rbac/rbac.go

@@ -18,6 +18,8 @@ limitations under the License.
 package rbac
 
 import (
+	"github.com/golang/glog"
+
 	"k8s.io/kubernetes/pkg/apis/rbac"
 	"k8s.io/kubernetes/pkg/apis/rbac/validation"
 	"k8s.io/kubernetes/pkg/auth/authorizer"
@@ -42,6 +44,9 @@ func (r *RBACAuthorizer) Authorize(requestAttributes authorizer.Attributes) (boo
 		return true, "", nil
 	}
 
+	glog.V(2).Infof("RBAC DENY: user %q groups %v cannot %q on \"%v.%v/%v\"", requestAttributes.GetUser().GetName(), requestAttributes.GetUser().GetGroups(),
+		requestAttributes.GetVerb(), requestAttributes.GetResource(), requestAttributes.GetAPIGroup(), requestAttributes.GetSubresource())
+
 	return false, "", ruleResolutionError
 }