use go 1.12

Signed-off-by: hongming <talonwan@yunify.com>

vendor/k8s.io/apiserver/pkg/endpoints/request/context.go

@@ -21,9 +21,7 @@ import (
 	"time"
 
 	"golang.org/x/net/context"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
-	"k8s.io/apiserver/pkg/apis/audit"
 	"k8s.io/apiserver/pkg/authentication/user"
 )
 
@@ -65,8 +63,7 @@ const (
 	// userAgentKey is the context key for the request user agent.
 	userAgentKey
 
-	// auditKey is the context key for the audit event.
-	auditKey
+	namespaceDefault = "default" // TODO(sttts): solve import cycle when using metav1.NamespaceDefault
 )
 
 // NewContext instantiates a base context object for request flows.
@@ -76,7 +73,7 @@ func NewContext() Context {
 
 // NewDefaultContext instantiates a base context object for request flows in the default namespace
 func NewDefaultContext() Context {
-	return WithNamespace(NewContext(), metav1.NamespaceDefault)
+	return WithNamespace(NewContext(), namespaceDefault)
 }
 
 // WithValue returns a copy of parent in which the value associated with key is val.
@@ -109,7 +106,7 @@ func NamespaceValue(ctx Context) string {
 func WithNamespaceDefaultIfNone(parent Context) Context {
 	namespace, ok := NamespaceFrom(parent)
 	if !ok || len(namespace) == 0 {
-		return WithNamespace(parent, metav1.NamespaceDefault)
+		return WithNamespace(parent, namespaceDefault)
 	}
 	return parent
 }
@@ -146,14 +143,3 @@ func UserAgentFrom(ctx Context) (string, bool) {
 	userAgent, ok := ctx.Value(userAgentKey).(string)
 	return userAgent, ok
 }
-
-// WithAuditEvent returns set audit event struct.
-func WithAuditEvent(parent Context, ev *audit.Event) Context {
-	return WithValue(parent, auditKey, ev)
-}
-
-// AuditEventFrom returns the audit event struct on the ctx
-func AuditEventFrom(ctx Context) *audit.Event {
-	ev, _ := ctx.Value(auditKey).(*audit.Event)
-	return ev
-}