Merge pull request #52981 from CaoShuFeng/audit_v1beta2

Automatic merge from submit-queue (batch tested with PRs 53119, 53753, 53795, 52981). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

add RequestReceivedTimestamp and StageTimestamp to audit event

fixes https://github.com/kubernetes/kubernetes/issues/52160

**Release note**:
```
Add RequestReceivedTimestamp and StageTimestamp with micro seconds to audit events.
```

staging/src/k8s.io/apiserver/pkg/apis/audit/types.go

@@ -77,15 +77,10 @@ const (
 // Event captures all the information that can be included in an API audit log.
 type Event struct {
 	metav1.TypeMeta
-	// ObjectMeta is included for interoperability with API infrastructure.
-	// +optional
-	metav1.ObjectMeta
 
 	// AuditLevel at which event was generated
 	Level Level
 
-	// Time the request reached the apiserver.
-	Timestamp metav1.Time
 	// Unique audit ID, generated for each request.
 	AuditID types.UID
 	// Stage of the request handling when this event instance was generated.
@@ -121,10 +116,15 @@ type Event struct {
 	// +optional
 	RequestObject *runtime.Unknown
 	// API object returned in the response, in JSON. The ResponseObject is recorded after conversion
-	// to the external type, and serialized as JSON.  Omitted for non-resource requests.  Only logged
+	// to the external type, and serialized as JSON. Omitted for non-resource requests.  Only logged
 	// at Response Level.
 	// +optional
 	ResponseObject *runtime.Unknown
+
+	// Time the request reached the apiserver.
+	RequestReceivedTimestamp metav1.MicroTime
+	// Time the request reached current audit stage.
+	StageTimestamp metav1.MicroTime
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

staging/src/k8s.io/apiserver/pkg/apis/audit/v1alpha1/BUILD

@@ -54,6 +54,7 @@ go_test(
     srcs = ["conversion_test.go"],
     library = ":go_default_library",
     deps = [
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
         "//vendor/k8s.io/apiserver/pkg/apis/audit:go_default_library",

staging/src/k8s.io/apiserver/pkg/apis/audit/v1alpha1/conversion.go

@@ -19,6 +19,7 @@ package v1alpha1
 import (
 	"strings"
 
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/conversion"
 	"k8s.io/apiserver/pkg/apis/audit"
 )
@@ -52,3 +53,26 @@ func Convert_v1alpha1_ObjectReference_To_audit_ObjectReference(in *ObjectReferen
 	}
 	return nil
 }
+
+func Convert_v1alpha1_Event_To_audit_Event(in *Event, out *audit.Event, s conversion.Scope) error {
+	if err := autoConvert_v1alpha1_Event_To_audit_Event(in, out, s); err != nil {
+		return err
+	}
+	if out.StageTimestamp.IsZero() {
+		out.StageTimestamp = metav1.NewMicroTime(in.CreationTimestamp.Time)
+	}
+	if out.RequestReceivedTimestamp.IsZero() {
+		out.RequestReceivedTimestamp = metav1.NewMicroTime(in.Timestamp.Time)
+	}
+	return nil
+}
+
+func Convert_audit_Event_To_v1alpha1_Event(in *audit.Event, out *Event, s conversion.Scope) error {
+	if err := autoConvert_audit_Event_To_v1alpha1_Event(in, out, s); err != nil {
+		return err
+	}
+	out.CreationTimestamp = metav1.NewTime(in.StageTimestamp.Time)
+	out.Timestamp = metav1.NewTime(in.RequestReceivedTimestamp.Time)
+	return nil
+
+}

staging/src/k8s.io/apiserver/pkg/apis/audit/v1alpha1/conversion_test.go

@@ -19,7 +19,9 @@ package v1alpha1
 import (
 	"reflect"
 	"testing"
+	"time"
 
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	auditinternal "k8s.io/apiserver/pkg/apis/audit"
@@ -36,7 +38,7 @@ func init() {
 	RegisterConversions(scheme)
 }
 
-func TestConversion(t *testing.T) {
+func TestConversionObjectReference(t *testing.T) {
 	scheme.Log(t)
 
 	testcases := []struct {
@@ -92,3 +94,114 @@ func TestConversion(t *testing.T) {
 		})
 	}
 }
+
+func TestConversionEventToInternal(t *testing.T) {
+	scheme.Log(t)
+
+	time1 := time.Now()
+	time2 := time.Now()
+	testcases := []struct {
+		desc     string
+		old      *Event
+		expected *auditinternal.Event
+	}{
+		{
+			"StageTimestamp is empty",
+			&Event{
+				ObjectMeta: metav1.ObjectMeta{
+					CreationTimestamp: metav1.NewTime(time1),
+				},
+			},
+			&auditinternal.Event{
+				StageTimestamp: metav1.NewMicroTime(time1),
+			},
+		},
+		{
+			"StageTimestamp is not empty",
+			&Event{
+				ObjectMeta: metav1.ObjectMeta{
+					CreationTimestamp: metav1.NewTime(time1),
+				},
+				StageTimestamp: metav1.NewMicroTime(time2),
+			},
+			&auditinternal.Event{
+				StageTimestamp: metav1.NewMicroTime(time2),
+			},
+		},
+		{
+			"RequestReceivedTimestamp is empty",
+			&Event{
+				Timestamp: metav1.NewTime(time1),
+			},
+			&auditinternal.Event{
+				RequestReceivedTimestamp: metav1.NewMicroTime(time1),
+			},
+		},
+		{
+			"RequestReceivedTimestamp is not empty",
+			&Event{
+				Timestamp:                metav1.NewTime(time1),
+				RequestReceivedTimestamp: metav1.NewMicroTime(time2),
+			},
+			&auditinternal.Event{
+				RequestReceivedTimestamp: metav1.NewMicroTime(time2),
+			},
+		},
+	}
+	for _, tc := range testcases {
+		t.Run(tc.desc, func(t *testing.T) {
+			internal := &auditinternal.Event{}
+			if err := scheme.Convert(tc.old, internal, nil); err != nil {
+				t.Errorf("unexpected error: %v", err)
+			}
+			if !reflect.DeepEqual(internal, tc.expected) {
+				t.Errorf("expected\n\t%#v, got \n\t%#v", tc.expected, internal)
+			}
+		})
+	}
+}
+
+func TestConversionInternalToEvent(t *testing.T) {
+	scheme.Log(t)
+
+	now := time.Now()
+	testcases := []struct {
+		desc     string
+		old      *auditinternal.Event
+		expected *Event
+	}{
+		{
+			"convert stageTimestamp",
+			&auditinternal.Event{
+				StageTimestamp: metav1.NewMicroTime(now),
+			},
+			&Event{
+				ObjectMeta: metav1.ObjectMeta{
+					CreationTimestamp: metav1.NewTime(now),
+				},
+				StageTimestamp: metav1.NewMicroTime(now),
+			},
+		},
+		{
+			"convert RequestReceivedTimestamp",
+			&auditinternal.Event{
+				RequestReceivedTimestamp: metav1.NewMicroTime(now),
+			},
+			&Event{
+				Timestamp:                metav1.NewTime(now),
+				RequestReceivedTimestamp: metav1.NewMicroTime(now),
+			},
+		},
+	}
+	for _, tc := range testcases {
+		t.Run(tc.desc, func(t *testing.T) {
+			event := &Event{}
+			if err := scheme.Convert(tc.old, event, nil); err != nil {
+				t.Errorf("unexpected error: %v", err)
+			}
+			if !reflect.DeepEqual(event, tc.expected) {
+				t.Errorf("expected\n\t%#v, got \n\t%#v", tc.expected, event)
+			}
+		})
+	}
+}

staging/src/k8s.io/apiserver/pkg/apis/audit/v1alpha1/generated.pb.go

@@ -222,6 +222,24 @@ func (m *Event) MarshalTo(dAtA []byte) (int, error) {
 		}
 		i += n8
 	}
+	dAtA[i] = 0x7a
+	i++
+	i = encodeVarintGenerated(dAtA, i, uint64(m.RequestReceivedTimestamp.Size()))
+	n9, err := m.RequestReceivedTimestamp.MarshalTo(dAtA[i:])
+	if err != nil {
+		return 0, err
+	}
+	i += n9
+	dAtA[i] = 0x82
+	i++
+	dAtA[i] = 0x1
+	i++
+	i = encodeVarintGenerated(dAtA, i, uint64(m.StageTimestamp.Size()))
+	n10, err := m.StageTimestamp.MarshalTo(dAtA[i:])
+	if err != nil {
+		return 0, err
+	}
+	i += n10
 	return i, nil
 }
 
@@ -243,11 +261,11 @@ func (m *EventList) MarshalTo(dAtA []byte) (int, error) {
 	dAtA[i] = 0xa
 	i++
 	i = encodeVarintGenerated(dAtA, i, uint64(m.ListMeta.Size()))
-	n9, err := m.ListMeta.MarshalTo(dAtA[i:])
+	n11, err := m.ListMeta.MarshalTo(dAtA[i:])
 	if err != nil {
 		return 0, err
 	}
-	i += n9
+	i += n11
 	if len(m.Items) > 0 {
 		for _, msg := range m.Items {
 			dAtA[i] = 0x12
@@ -379,11 +397,11 @@ func (m *Policy) MarshalTo(dAtA []byte) (int, error) {
 	dAtA[i] = 0xa
 	i++
 	i = encodeVarintGenerated(dAtA, i, uint64(m.ObjectMeta.Size()))
-	n10, err := m.ObjectMeta.MarshalTo(dAtA[i:])
+	n12, err := m.ObjectMeta.MarshalTo(dAtA[i:])
 	if err != nil {
 		return 0, err
 	}
-	i += n10
+	i += n12
 	if len(m.Rules) > 0 {
 		for _, msg := range m.Rules {
 			dAtA[i] = 0x12
@@ -417,11 +435,11 @@ func (m *PolicyList) MarshalTo(dAtA []byte) (int, error) {
 	dAtA[i] = 0xa
 	i++
 	i = encodeVarintGenerated(dAtA, i, uint64(m.ListMeta.Size()))
-	n11, err := m.ListMeta.MarshalTo(dAtA[i:])
+	n13, err := m.ListMeta.MarshalTo(dAtA[i:])
 	if err != nil {
 		return 0, err
 	}
-	i += n11
+	i += n13
 	if len(m.Items) > 0 {
 		for _, msg := range m.Items {
 			dAtA[i] = 0x12
@@ -633,6 +651,10 @@ func (m *Event) Size() (n int) {
 		l = m.ResponseObject.Size()
 		n += 1 + l + sovGenerated(uint64(l))
 	}
+	l = m.RequestReceivedTimestamp.Size()
+	n += 1 + l + sovGenerated(uint64(l))
+	l = m.StageTimestamp.Size()
+	n += 2 + l + sovGenerated(uint64(l))
 	return n
 }
 
@@ -800,6 +822,8 @@ func (this *Event) String() string {
 		`ResponseStatus:` + strings.Replace(fmt.Sprintf("%v", this.ResponseStatus), "Status", "k8s_io_apimachinery_pkg_apis_meta_v1.Status", 1) + `,`,
 		`RequestObject:` + strings.Replace(fmt.Sprintf("%v", this.RequestObject), "Unknown", "k8s_io_apimachinery_pkg_runtime.Unknown", 1) + `,`,
 		`ResponseObject:` + strings.Replace(fmt.Sprintf("%v", this.ResponseObject), "Unknown", "k8s_io_apimachinery_pkg_runtime.Unknown", 1) + `,`,
+		`RequestReceivedTimestamp:` + strings.Replace(strings.Replace(this.RequestReceivedTimestamp.String(), "MicroTime", "k8s_io_apimachinery_pkg_apis_meta_v1.MicroTime", 1), `&`, ``, 1) + `,`,
+		`StageTimestamp:` + strings.Replace(strings.Replace(this.StageTimestamp.String(), "MicroTime", "k8s_io_apimachinery_pkg_apis_meta_v1.MicroTime", 1), `&`, ``, 1) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -1348,6 +1372,66 @@ func (m *Event) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 15:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RequestReceivedTimestamp", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := m.RequestReceivedTimestamp.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 16:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field StageTimestamp", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := m.StageTimestamp.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipGenerated(dAtA[iNdEx:])
@@ -2486,76 +2570,80 @@ func init() {
 }
 
 var fileDescriptorGenerated = []byte{
-	// 1129 bytes of a gzipped FileDescriptorProto
+	// 1185 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x56, 0xcd, 0x6e, 0x23, 0x45,
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x56, 0x4f, 0x6f, 0x1b, 0x45,
-	0x10, 0xce, 0xac, 0xe3, 0x8d, 0xa7, 0xb3, 0xf9, 0xd9, 0x5e, 0xc4, 0x8e, 0x72, 0xb0, 0x83, 0x91,
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-	0x4a, 0x4c, 0x6f, 0x26, 0x33, 0xb9, 0xaf, 0xdd, 0x32, 0x2e, 0x42, 0xf9, 0x18, 0x33, 0xe7, 0xbe,
+	0xc8, 0xeb, 0xaa, 0x86, 0x8a, 0x72, 0xd5, 0x27, 0x1d, 0x5b, 0x96, 0x48, 0xb9, 0x91, 0x39, 0x89,
-	0x89, 0x3d, 0x9f, 0x73, 0x46, 0x0a, 0x08, 0xfc, 0x19, 0xda, 0x88, 0xe2, 0x48, 0x4b, 0xb5, 0xc9,
+	0xe5, 0xd8, 0x41, 0x48, 0x7e, 0xa8, 0x56, 0x4f, 0xda, 0xb4, 0x22, 0x7f, 0x55, 0x3b, 0x95, 0x92,
-	0x11, 0x73, 0x56, 0x24, 0xe9, 0x91, 0x98, 0xa5, 0xe3, 0x69, 0x17, 0x99, 0xc5, 0xe2, 0x27, 0x08,
+	0x0c, 0x42, 0x12, 0xca, 0x57, 0x08, 0xb7, 0x97, 0x0d, 0xa1, 0x7c, 0x9c, 0x70, 0x12, 0xcb, 0x31,
-	0xc5, 0x61, 0xc0, 0xe5, 0x1f, 0x0e, 0x73, 0x2a, 0x92, 0xf9, 0x58, 0x76, 0x75, 0x6e, 0x35, 0x7f,
+	0xcd, 0xce, 0x89, 0xa2, 0xca, 0xc4, 0xe3, 0xc5, 0x33, 0x91, 0x9f, 0x4c, 0xa6, 0x73, 0x5f, 0x3b,
-	0x40, 0x05, 0x68, 0xd3, 0xbd, 0xba, 0xae, 0x2e, 0xbd, 0xbc, 0xae, 0x2e, 0xbd, 0xba, 0xae, 0x2e,
+	0x65, 0x1c, 0x84, 0xd2, 0x36, 0xe6, 0xf6, 0x8a, 0xf1, 0x3d, 0xed, 0x73, 0x4e, 0x32, 0x08, 0xfc,
-	0xfd, 0x3a, 0xa9, 0x5a, 0x57, 0x93, 0xaa, 0xf5, 0x72, 0x52, 0xb5, 0x5e, 0x4d, 0xaa, 0xd6, 0x3f,
+	0x05, 0xda, 0xf0, 0x03, 0x3f, 0xa1, 0x6a, 0x93, 0x43, 0x6e, 0xaf, 0x2a, 0xa3, 0xfb, 0xb2, 0x97,
-	0x93, 0xaa, 0xf5, 0xfb, 0xbf, 0xd5, 0xa5, 0xef, 0x2a, 0xba, 0x08, 0xff, 0x05, 0x00, 0x00, 0xff,
+	0x8e, 0xf2, 0x2a, 0x32, 0x8b, 0xc5, 0x8f, 0x10, 0x0a, 0x46, 0x54, 0xa8, 0x0d, 0xc1, 0xed, 0x92,
-	0xff, 0x92, 0xdb, 0xa5, 0x50, 0x5a, 0x0c, 0x00, 0x00,
+	0xb2, 0x7c, 0xa0, 0xaa, 0x3a, 0x95, 0x9a, 0x27, 0x60, 0x06, 0xda, 0x74, 0x2e, 0xaf, 0xaa, 0x4b,
+	0x2f, 0xaf, 0xaa, 0x4b, 0xaf, 0xae, 0xaa, 0x4b, 0xbf, 0x4d, 0xab, 0xd6, 0xe5, 0xb4, 0x6a, 0xbd,
+	0x9c, 0x56, 0xad, 0x57, 0xd3, 0xaa, 0xf5, 0xcf, 0xb4, 0x6a, 0xfd, 0xf9, 0x6f, 0x75, 0xe9, 0xfb,
+	0x52, 0x92, 0x84, 0xff, 0x02, 0x00, 0x00, 0xff, 0xff, 0x9e, 0x6c, 0xe1, 0x29, 0x5b, 0x0d, 0x00,
+	0x00,
 }

staging/src/k8s.io/apiserver/pkg/apis/audit/v1alpha1/generated.proto

@@ -89,6 +89,14 @@ message Event {
   // at Response Level.
   // +optional
   optional k8s.io.apimachinery.pkg.runtime.Unknown responseObject = 14;
+
+  // Time the request reached the apiserver.
+  // +optional
+  optional k8s.io.apimachinery.pkg.apis.meta.v1.MicroTime requestReceivedTimestamp = 15;
+
+  // Time the request reached current audit stage.
+  // +optional
+  optional k8s.io.apimachinery.pkg.apis.meta.v1.MicroTime stageTimestamp = 16;
 }
 
 // EventList is a list of audit Events.

staging/src/k8s.io/apiserver/pkg/apis/audit/v1alpha1/types.go

@@ -126,6 +126,12 @@ type Event struct {
 	// at Response Level.
 	// +optional
 	ResponseObject *runtime.Unknown `json:"responseObject,omitempty" protobuf:"bytes,14,opt,name=responseObject"`
+	// Time the request reached the apiserver.
+	// +optional
+	RequestReceivedTimestamp metav1.MicroTime `json:"requestReceivedTimestamp" protobuf:"bytes,15,opt,name=requestReceivedTimestamp"`
+	// Time the request reached current audit stage.
+	// +optional
+	StageTimestamp metav1.MicroTime `json:"stageTimestamp" protobuf:"bytes,16,opt,name=stageTimestamp"`
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

staging/src/k8s.io/apiserver/pkg/apis/audit/v1alpha1/zz_generated.conversion.go

@@ -56,9 +56,9 @@ func RegisterConversions(scheme *runtime.Scheme) error {
 }
 
 func autoConvert_v1alpha1_Event_To_audit_Event(in *Event, out *audit.Event, s conversion.Scope) error {
-	out.ObjectMeta = in.ObjectMeta
+	// WARNING: in.ObjectMeta requires manual conversion: does not exist in peer-type
 	out.Level = audit.Level(in.Level)
-	out.Timestamp = in.Timestamp
+	// WARNING: in.Timestamp requires manual conversion: does not exist in peer-type
 	out.AuditID = types.UID(in.AuditID)
 	out.Stage = audit.Stage(in.Stage)
 	out.RequestURI = in.RequestURI
@@ -81,18 +81,13 @@ func autoConvert_v1alpha1_Event_To_audit_Event(in *Event, out *audit.Event, s co
 	out.ResponseStatus = (*v1.Status)(unsafe.Pointer(in.ResponseStatus))
 	out.RequestObject = (*runtime.Unknown)(unsafe.Pointer(in.RequestObject))
 	out.ResponseObject = (*runtime.Unknown)(unsafe.Pointer(in.ResponseObject))
+	out.RequestReceivedTimestamp = in.RequestReceivedTimestamp
+	out.StageTimestamp = in.StageTimestamp
 	return nil
 }
 
-// Convert_v1alpha1_Event_To_audit_Event is an autogenerated conversion function.
-func Convert_v1alpha1_Event_To_audit_Event(in *Event, out *audit.Event, s conversion.Scope) error {
-	return autoConvert_v1alpha1_Event_To_audit_Event(in, out, s)
-}
-
 func autoConvert_audit_Event_To_v1alpha1_Event(in *audit.Event, out *Event, s conversion.Scope) error {
-	out.ObjectMeta = in.ObjectMeta
 	out.Level = Level(in.Level)
-	out.Timestamp = in.Timestamp
 	out.AuditID = types.UID(in.AuditID)
 	out.Stage = Stage(in.Stage)
 	out.RequestURI = in.RequestURI
@@ -115,14 +110,11 @@ func autoConvert_audit_Event_To_v1alpha1_Event(in *audit.Event, out *Event, s co
 	out.ResponseStatus = (*v1.Status)(unsafe.Pointer(in.ResponseStatus))
 	out.RequestObject = (*runtime.Unknown)(unsafe.Pointer(in.RequestObject))
 	out.ResponseObject = (*runtime.Unknown)(unsafe.Pointer(in.ResponseObject))
+	out.RequestReceivedTimestamp = in.RequestReceivedTimestamp
+	out.StageTimestamp = in.StageTimestamp
 	return nil
 }
 
-// Convert_audit_Event_To_v1alpha1_Event is an autogenerated conversion function.
-func Convert_audit_Event_To_v1alpha1_Event(in *audit.Event, out *Event, s conversion.Scope) error {
-	return autoConvert_audit_Event_To_v1alpha1_Event(in, out, s)
-}
-
 func autoConvert_v1alpha1_EventList_To_audit_EventList(in *EventList, out *audit.EventList, s conversion.Scope) error {
 	out.ListMeta = in.ListMeta
 	if in.Items != nil {

staging/src/k8s.io/apiserver/pkg/apis/audit/v1alpha1/zz_generated.deepcopy.go

@@ -126,6 +126,8 @@ func (in *Event) DeepCopyInto(out *Event) {
 			(*in).DeepCopyInto(*out)
 		}
 	}
+	in.RequestReceivedTimestamp.DeepCopyInto(&out.RequestReceivedTimestamp)
+	in.StageTimestamp.DeepCopyInto(&out.StageTimestamp)
 	return
 }
 

staging/src/k8s.io/apiserver/pkg/apis/audit/v1beta1/BUILD

@@ -3,11 +3,13 @@ package(default_visibility = ["//visibility:public"])
 load(
     "@io_bazel_rules_go//go:def.bzl",
     "go_library",
+    "go_test",
 )
 
 go_library(
     name = "go_default_library",
     srcs = [
+        "conversion.go",
         "doc.go",
         "generated.pb.go",
         "register.go",
@@ -47,3 +49,15 @@ filegroup(
     srcs = ["generated.proto"],
     visibility = ["//visibility:public"],
 )
+
+go_test(
+    name = "go_default_test",
+    srcs = ["conversion_test.go"],
+    library = ":go_default_library",
+    deps = [
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/apis/audit:go_default_library",
+    ],
+)

staging/src/k8s.io/apiserver/pkg/apis/audit/v1beta1/conversion.go

@@ -0,0 +1,45 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1beta1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/conversion"
+	"k8s.io/apiserver/pkg/apis/audit"
+)
+
+func Convert_v1beta1_Event_To_audit_Event(in *Event, out *audit.Event, s conversion.Scope) error {
+	if err := autoConvert_v1beta1_Event_To_audit_Event(in, out, s); err != nil {
+		return err
+	}
+	if out.StageTimestamp.IsZero() {
+		out.StageTimestamp = metav1.NewMicroTime(in.CreationTimestamp.Time)
+	}
+	if out.RequestReceivedTimestamp.IsZero() {
+		out.RequestReceivedTimestamp = metav1.NewMicroTime(in.Timestamp.Time)
+	}
+	return nil
+}
+
+func Convert_audit_Event_To_v1beta1_Event(in *audit.Event, out *Event, s conversion.Scope) error {
+	if err := autoConvert_audit_Event_To_v1beta1_Event(in, out, s); err != nil {
+		return err
+	}
+	out.CreationTimestamp = metav1.NewTime(in.StageTimestamp.Time)
+	out.Timestamp = metav1.NewTime(in.RequestReceivedTimestamp.Time)
+	return nil
+}

staging/src/k8s.io/apiserver/pkg/apis/audit/v1beta1/conversion_test.go

@@ -0,0 +1,150 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1beta1
+
+import (
+	"reflect"
+	"testing"
+	"time"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	auditinternal "k8s.io/apiserver/pkg/apis/audit"
+)
+
+var scheme = runtime.NewScheme()
+
+func init() {
+	addKnownTypes(scheme)
+	internalGV := schema.GroupVersion{Group: auditinternal.GroupName, Version: runtime.APIVersionInternal}
+	scheme.AddKnownTypes(internalGV,
+		&auditinternal.Event{},
+	)
+	RegisterConversions(scheme)
+}
+
+func TestConversionEventToInternal(t *testing.T) {
+	scheme.Log(t)
+
+	time1 := time.Now()
+	time2 := time.Now()
+	testcases := []struct {
+		desc     string
+		old      *Event
+		expected *auditinternal.Event
+	}{
+		{
+			"StageTimestamp is empty",
+			&Event{
+				ObjectMeta: metav1.ObjectMeta{
+					CreationTimestamp: metav1.NewTime(time1),
+				},
+			},
+			&auditinternal.Event{
+				StageTimestamp: metav1.NewMicroTime(time1),
+			},
+		},
+		{
+			"StageTimestamp is not empty",
+			&Event{
+				ObjectMeta: metav1.ObjectMeta{
+					CreationTimestamp: metav1.NewTime(time1),
+				},
+				StageTimestamp: metav1.NewMicroTime(time2),
+			},
+			&auditinternal.Event{
+				StageTimestamp: metav1.NewMicroTime(time2),
+			},
+		},
+		{
+			"RequestReceivedTimestamp is empty",
+			&Event{
+				Timestamp: metav1.NewTime(time1),
+			},
+			&auditinternal.Event{
+				RequestReceivedTimestamp: metav1.NewMicroTime(time1),
+			},
+		},
+		{
+			"RequestReceivedTimestamp is not empty",
+			&Event{
+				Timestamp:                metav1.NewTime(time1),
+				RequestReceivedTimestamp: metav1.NewMicroTime(time2),
+			},
+			&auditinternal.Event{
+				RequestReceivedTimestamp: metav1.NewMicroTime(time2),
+			},
+		},
+	}
+	for _, tc := range testcases {
+		t.Run(tc.desc, func(t *testing.T) {
+			internal := &auditinternal.Event{}
+			if err := scheme.Convert(tc.old, internal, nil); err != nil {
+				t.Errorf("unexpected error: %v", err)
+			}
+			if !reflect.DeepEqual(internal, tc.expected) {
+				t.Errorf("expected\n\t%#v, got \n\t%#v", tc.expected, internal)
+			}
+		})
+	}
+}
+
+func TestConversionInternalToEvent(t *testing.T) {
+	scheme.Log(t)
+
+	now := time.Now()
+	testcases := []struct {
+		desc     string
+		old      *auditinternal.Event
+		expected *Event
+	}{
+		{
+			"convert stageTimestamp",
+			&auditinternal.Event{
+				StageTimestamp: metav1.NewMicroTime(now),
+			},
+			&Event{
+				ObjectMeta: metav1.ObjectMeta{
+					CreationTimestamp: metav1.NewTime(now),
+				},
+				StageTimestamp: metav1.NewMicroTime(now),
+			},
+		},
+		{
+			"convert RequestReceivedTimestamp",
+			&auditinternal.Event{
+				RequestReceivedTimestamp: metav1.NewMicroTime(now),
+			},
+			&Event{
+				Timestamp:                metav1.NewTime(now),
+				RequestReceivedTimestamp: metav1.NewMicroTime(now),
+			},
+		},
+	}
+	for _, tc := range testcases {
+		t.Run(tc.desc, func(t *testing.T) {
+			event := &Event{}
+			if err := scheme.Convert(tc.old, event, nil); err != nil {
+				t.Errorf("unexpected error: %v", err)
+			}
+			if !reflect.DeepEqual(event, tc.expected) {
+				t.Errorf("expected\n\t%#v, got \n\t%#v", tc.expected, event)
+			}
+		})
+	}
+}

staging/src/k8s.io/apiserver/pkg/apis/audit/v1beta1/generated.pb.go

@@ -222,6 +222,24 @@ func (m *Event) MarshalTo(dAtA []byte) (int, error) {
 		}
 		i += n8
 	}
+	dAtA[i] = 0x7a
+	i++
+	i = encodeVarintGenerated(dAtA, i, uint64(m.RequestReceivedTimestamp.Size()))
+	n9, err := m.RequestReceivedTimestamp.MarshalTo(dAtA[i:])
+	if err != nil {
+		return 0, err
+	}
+	i += n9
+	dAtA[i] = 0x82
+	i++
+	dAtA[i] = 0x1
+	i++
+	i = encodeVarintGenerated(dAtA, i, uint64(m.StageTimestamp.Size()))
+	n10, err := m.StageTimestamp.MarshalTo(dAtA[i:])
+	if err != nil {
+		return 0, err
+	}
+	i += n10
 	return i, nil
 }
 
@@ -243,11 +261,11 @@ func (m *EventList) MarshalTo(dAtA []byte) (int, error) {
 	dAtA[i] = 0xa
 	i++
 	i = encodeVarintGenerated(dAtA, i, uint64(m.ListMeta.Size()))
-	n9, err := m.ListMeta.MarshalTo(dAtA[i:])
+	n11, err := m.ListMeta.MarshalTo(dAtA[i:])
 	if err != nil {
 		return 0, err
 	}
-	i += n9
+	i += n11
 	if len(m.Items) > 0 {
 		for _, msg := range m.Items {
 			dAtA[i] = 0x12
@@ -383,11 +401,11 @@ func (m *Policy) MarshalTo(dAtA []byte) (int, error) {
 	dAtA[i] = 0xa
 	i++
 	i = encodeVarintGenerated(dAtA, i, uint64(m.ObjectMeta.Size()))
-	n10, err := m.ObjectMeta.MarshalTo(dAtA[i:])
+	n12, err := m.ObjectMeta.MarshalTo(dAtA[i:])
 	if err != nil {
 		return 0, err
 	}
-	i += n10
+	i += n12
 	if len(m.Rules) > 0 {
 		for _, msg := range m.Rules {
 			dAtA[i] = 0x12
@@ -421,11 +439,11 @@ func (m *PolicyList) MarshalTo(dAtA []byte) (int, error) {
 	dAtA[i] = 0xa
 	i++
 	i = encodeVarintGenerated(dAtA, i, uint64(m.ListMeta.Size()))
-	n11, err := m.ListMeta.MarshalTo(dAtA[i:])
+	n13, err := m.ListMeta.MarshalTo(dAtA[i:])
 	if err != nil {
 		return 0, err
 	}
-	i += n11
+	i += n13
 	if len(m.Items) > 0 {
 		for _, msg := range m.Items {
 			dAtA[i] = 0x12
@@ -637,6 +655,10 @@ func (m *Event) Size() (n int) {
 		l = m.ResponseObject.Size()
 		n += 1 + l + sovGenerated(uint64(l))
 	}
+	l = m.RequestReceivedTimestamp.Size()
+	n += 1 + l + sovGenerated(uint64(l))
+	l = m.StageTimestamp.Size()
+	n += 2 + l + sovGenerated(uint64(l))
 	return n
 }
 
@@ -806,6 +828,8 @@ func (this *Event) String() string {
 		`ResponseStatus:` + strings.Replace(fmt.Sprintf("%v", this.ResponseStatus), "Status", "k8s_io_apimachinery_pkg_apis_meta_v1.Status", 1) + `,`,
 		`RequestObject:` + strings.Replace(fmt.Sprintf("%v", this.RequestObject), "Unknown", "k8s_io_apimachinery_pkg_runtime.Unknown", 1) + `,`,
 		`ResponseObject:` + strings.Replace(fmt.Sprintf("%v", this.ResponseObject), "Unknown", "k8s_io_apimachinery_pkg_runtime.Unknown", 1) + `,`,
+		`RequestReceivedTimestamp:` + strings.Replace(strings.Replace(this.RequestReceivedTimestamp.String(), "MicroTime", "k8s_io_apimachinery_pkg_apis_meta_v1.MicroTime", 1), `&`, ``, 1) + `,`,
+		`StageTimestamp:` + strings.Replace(strings.Replace(this.StageTimestamp.String(), "MicroTime", "k8s_io_apimachinery_pkg_apis_meta_v1.MicroTime", 1), `&`, ``, 1) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -1355,6 +1379,66 @@ func (m *Event) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 15:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RequestReceivedTimestamp", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := m.RequestReceivedTimestamp.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 16:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field StageTimestamp", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := m.StageTimestamp.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipGenerated(dAtA[iNdEx:])
@@ -2522,78 +2606,81 @@ func init() {
 }
 
 var fileDescriptorGenerated = []byte{
-	// 1153 bytes of a gzipped FileDescriptorProto
+	// 1211 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x56, 0x4f, 0x6f, 0x1b, 0x45,
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x56, 0x41, 0x6f, 0x1b, 0x45,
-	0x14, 0xcf, 0xd6, 0x71, 0xe2, 0x9d, 0x34, 0x7f, 0x3a, 0x45, 0x74, 0x95, 0x83, 0x1d, 0x8c, 0x04,
+	0x14, 0xce, 0xd6, 0x71, 0x63, 0x4f, 0x1a, 0x27, 0x9d, 0x22, 0xba, 0xca, 0xc1, 0x36, 0x46, 0x82,
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+	0x08, 0xd2, 0xdd, 0xa6, 0x2d, 0x24, 0x17, 0x0e, 0xb1, 0x8a, 0xc0, 0x52, 0x1a, 0xa2, 0x71, 0x5c,
-	0x21, 0xe0, 0xc0, 0xd8, 0x7e, 0xb1, 0x97, 0x78, 0xff, 0x30, 0x33, 0x6b, 0x94, 0x1b, 0x1f, 0x81,
+	0x21, 0xe0, 0xc0, 0xda, 0x7e, 0xb1, 0x87, 0xd8, 0xbb, 0xcb, 0xcc, 0xac, 0x51, 0x6e, 0xfc, 0x01,
-	0x3b, 0xdf, 0x82, 0x0f, 0x50, 0x21, 0xc1, 0x21, 0xc7, 0x1e, 0x7b, 0xb2, 0x88, 0xf9, 0x16, 0x39,
+	0x24, 0xee, 0xfc, 0x0b, 0x7e, 0x40, 0xc5, 0xa1, 0x87, 0x1c, 0x7b, 0xec, 0xc9, 0x22, 0xe6, 0x5f,
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+	0xe4, 0x84, 0x66, 0x76, 0x76, 0x67, 0x6d, 0xd7, 0xd4, 0xe1, 0xd0, 0xdb, 0xee, 0x7b, 0xdf, 0xf7,
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+	0x98, 0x0f, 0x02, 0xb8, 0x3b, 0x02, 0xbf, 0x1b, 0x30, 0x57, 0x3b, 0xbc, 0x90, 0x72, 0x60, 0x23,
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+	0x60, 0x6e, 0x78, 0xde, 0x53, 0x7f, 0xae, 0x17, 0x75, 0xa9, 0x70, 0x47, 0x7b, 0x6d, 0x10, 0xde,
-	0xaf, 0x07, 0x21, 0x30, 0x2a, 0xa0, 0xeb, 0xc6, 0x2c, 0x12, 0x11, 0xfe, 0x38, 0x25, 0xba, 0x39,
+	0x9e, 0xdb, 0x03, 0x1f, 0x98, 0x27, 0xa0, 0xeb, 0x84, 0x2c, 0x10, 0x01, 0xfe, 0x38, 0x26, 0x3a,
-	0xd1, 0x8d, 0xcf, 0x7b, 0xea, 0xcd, 0x55, 0x44, 0x57, 0x13, 0x37, 0x1f, 0xf6, 0x7c, 0xd1, 0x4f,
+	0x29, 0xd1, 0x09, 0xcf, 0x7b, 0xea, 0xcf, 0x51, 0x44, 0x47, 0x13, 0xb7, 0x1f, 0xf4, 0xa8, 0xe8,
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+	0x47, 0x6d, 0xa7, 0x13, 0x0c, 0xdd, 0x5e, 0xd0, 0x0b, 0x5c, 0xc5, 0x6f, 0x47, 0x67, 0xea, 0x4f,
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-	0x30, 0x19, 0x04, 0x20, 0xe8, 0xeb, 0x58, 0xde, 0x4d, 0x2c, 0x96, 0x84, 0xc2, 0x0f, 0x60, 0x86,
+	0x76, 0x61, 0x32, 0x18, 0x82, 0xf0, 0xde, 0xc4, 0x72, 0x17, 0xb1, 0x58, 0xe4, 0x0b, 0x3a, 0x84,
-	0xf0, 0xf9, 0xdb, 0x08, 0xbc, 0xd3, 0x87, 0x80, 0xce, 0xf0, 0x9e, 0xdc, 0xc4, 0x4b, 0x84, 0x3f,
+	0x39, 0xc2, 0xe7, 0x6f, 0x23, 0xf0, 0x4e, 0x1f, 0x86, 0xde, 0x1c, 0xef, 0xf1, 0x22, 0x5e, 0x24,
-	0xf0, 0xfc, 0x50, 0x70, 0xc1, 0x66, 0x48, 0xfb, 0x6f, 0xbf, 0x12, 0x3a, 0x88, 0xfb, 0xb3, 0x77,
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+	0xfe, 0x9e, 0x94, 0xad, 0xdf, 0xff, 0x29, 0xaf, 0x7c, 0xb7, 0xa6, 0x6b, 0xf0, 0x6f, 0x00, 0x00,
+	0x00, 0xff, 0xff, 0xfd, 0x2a, 0x16, 0x68, 0xbb, 0x0d, 0x00, 0x00,
 }

staging/src/k8s.io/apiserver/pkg/apis/audit/v1beta1/generated.proto

@@ -35,12 +35,15 @@ option go_package = "v1beta1";
 message Event {
   // ObjectMeta is included for interoperability with API infrastructure.
   // +optional
+  // DEPRECATED: Use StageTimestamp which supports micro second instead of ObjectMeta.CreateTimestamp
+  // and the rest of the object is not used
   optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;
 
   // AuditLevel at which event was generated
   optional string level = 2;
 
   // Time the request reached the apiserver.
+  // DEPRECATED: Use RequestReceivedTimestamp which supports micro second instead.
   optional k8s.io.apimachinery.pkg.apis.meta.v1.Time timestamp = 3;
 
   // Unique audit ID, generated for each request.
@@ -90,6 +93,14 @@ message Event {
   // at Response Level.
   // +optional
   optional k8s.io.apimachinery.pkg.runtime.Unknown responseObject = 14;
+
+  // Time the request reached the apiserver.
+  // +optional
+  optional k8s.io.apimachinery.pkg.apis.meta.v1.MicroTime requestReceivedTimestamp = 15;
+
+  // Time the request reached current audit stage.
+  // +optional
+  optional k8s.io.apimachinery.pkg.apis.meta.v1.MicroTime stageTimestamp = 16;
 }
 
 // EventList is a list of audit Events.

staging/src/k8s.io/apiserver/pkg/apis/audit/v1beta1/types.go

@@ -73,12 +73,15 @@ type Event struct {
 	metav1.TypeMeta `json:",inline"`
 	// ObjectMeta is included for interoperability with API infrastructure.
 	// +optional
+	// DEPRECATED: Use StageTimestamp which supports micro second instead of ObjectMeta.CreateTimestamp
+	// and the rest of the object is not used
 	metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
 
 	// AuditLevel at which event was generated
 	Level Level `json:"level" protobuf:"bytes,2,opt,name=level,casttype=Level"`
 
 	// Time the request reached the apiserver.
+	// DEPRECATED: Use RequestReceivedTimestamp which supports micro second instead.
 	Timestamp metav1.Time `json:"timestamp" protobuf:"bytes,3,opt,name=timestamp"`
 	// Unique audit ID, generated for each request.
 	AuditID types.UID `json:"auditID" protobuf:"bytes,4,opt,name=auditID,casttype=k8s.io/apimachinery/pkg/types.UID"`
@@ -119,6 +122,12 @@ type Event struct {
 	// at Response Level.
 	// +optional
 	ResponseObject *runtime.Unknown `json:"responseObject,omitempty" protobuf:"bytes,14,opt,name=responseObject"`
+	// Time the request reached the apiserver.
+	// +optional
+	RequestReceivedTimestamp metav1.MicroTime `json:"requestReceivedTimestamp" protobuf:"bytes,15,opt,name=requestReceivedTimestamp"`
+	// Time the request reached current audit stage.
+	// +optional
+	StageTimestamp metav1.MicroTime `json:"stageTimestamp" protobuf:"bytes,16,opt,name=stageTimestamp"`
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

staging/src/k8s.io/apiserver/pkg/apis/audit/v1beta1/zz_generated.conversion.go

@@ -56,9 +56,9 @@ func RegisterConversions(scheme *runtime.Scheme) error {
 }
 
 func autoConvert_v1beta1_Event_To_audit_Event(in *Event, out *audit.Event, s conversion.Scope) error {
-	out.ObjectMeta = in.ObjectMeta
+	// WARNING: in.ObjectMeta requires manual conversion: does not exist in peer-type
 	out.Level = audit.Level(in.Level)
-	out.Timestamp = in.Timestamp
+	// WARNING: in.Timestamp requires manual conversion: does not exist in peer-type
 	out.AuditID = types.UID(in.AuditID)
 	out.Stage = audit.Stage(in.Stage)
 	out.RequestURI = in.RequestURI
@@ -73,18 +73,13 @@ func autoConvert_v1beta1_Event_To_audit_Event(in *Event, out *audit.Event, s con
 	out.ResponseStatus = (*v1.Status)(unsafe.Pointer(in.ResponseStatus))
 	out.RequestObject = (*runtime.Unknown)(unsafe.Pointer(in.RequestObject))
 	out.ResponseObject = (*runtime.Unknown)(unsafe.Pointer(in.ResponseObject))
+	out.RequestReceivedTimestamp = in.RequestReceivedTimestamp
+	out.StageTimestamp = in.StageTimestamp
 	return nil
 }
 
-// Convert_v1beta1_Event_To_audit_Event is an autogenerated conversion function.
-func Convert_v1beta1_Event_To_audit_Event(in *Event, out *audit.Event, s conversion.Scope) error {
-	return autoConvert_v1beta1_Event_To_audit_Event(in, out, s)
-}
-
 func autoConvert_audit_Event_To_v1beta1_Event(in *audit.Event, out *Event, s conversion.Scope) error {
-	out.ObjectMeta = in.ObjectMeta
 	out.Level = Level(in.Level)
-	out.Timestamp = in.Timestamp
 	out.AuditID = types.UID(in.AuditID)
 	out.Stage = Stage(in.Stage)
 	out.RequestURI = in.RequestURI
@@ -99,17 +94,24 @@ func autoConvert_audit_Event_To_v1beta1_Event(in *audit.Event, out *Event, s con
 	out.ResponseStatus = (*v1.Status)(unsafe.Pointer(in.ResponseStatus))
 	out.RequestObject = (*runtime.Unknown)(unsafe.Pointer(in.RequestObject))
 	out.ResponseObject = (*runtime.Unknown)(unsafe.Pointer(in.ResponseObject))
+	out.RequestReceivedTimestamp = in.RequestReceivedTimestamp
+	out.StageTimestamp = in.StageTimestamp
 	return nil
 }
 
-// Convert_audit_Event_To_v1beta1_Event is an autogenerated conversion function.
-func Convert_audit_Event_To_v1beta1_Event(in *audit.Event, out *Event, s conversion.Scope) error {
-	return autoConvert_audit_Event_To_v1beta1_Event(in, out, s)
-}
-
 func autoConvert_v1beta1_EventList_To_audit_EventList(in *EventList, out *audit.EventList, s conversion.Scope) error {
 	out.ListMeta = in.ListMeta
-	out.Items = *(*[]audit.Event)(unsafe.Pointer(&in.Items))
+	if in.Items != nil {
+		in, out := &in.Items, &out.Items
+		*out = make([]audit.Event, len(*in))
+		for i := range *in {
+			if err := Convert_v1beta1_Event_To_audit_Event(&(*in)[i], &(*out)[i], s); err != nil {
+				return err
+			}
+		}
+	} else {
+		out.Items = nil
+	}
 	return nil
 }
 
@@ -120,7 +122,17 @@ func Convert_v1beta1_EventList_To_audit_EventList(in *EventList, out *audit.Even
 
 func autoConvert_audit_EventList_To_v1beta1_EventList(in *audit.EventList, out *EventList, s conversion.Scope) error {
 	out.ListMeta = in.ListMeta
-	out.Items = *(*[]Event)(unsafe.Pointer(&in.Items))
+	if in.Items != nil {
+		in, out := &in.Items, &out.Items
+		*out = make([]Event, len(*in))
+		for i := range *in {
+			if err := Convert_audit_Event_To_v1beta1_Event(&(*in)[i], &(*out)[i], s); err != nil {
+				return err
+			}
+		}
+	} else {
+		out.Items = nil
+	}
 	return nil
 }
 

staging/src/k8s.io/apiserver/pkg/apis/audit/v1beta1/zz_generated.deepcopy.go

@@ -126,6 +126,8 @@ func (in *Event) DeepCopyInto(out *Event) {
 			(*in).DeepCopyInto(*out)
 		}
 	}
+	in.RequestReceivedTimestamp.DeepCopyInto(&out.RequestReceivedTimestamp)
+	in.StageTimestamp.DeepCopyInto(&out.StageTimestamp)
 	return
 }
 

staging/src/k8s.io/apiserver/pkg/apis/audit/zz_generated.deepcopy.go

@@ -71,8 +71,6 @@ func GetGeneratedDeepCopyFuncs() []conversion.GeneratedDeepCopyFunc {
 func (in *Event) DeepCopyInto(out *Event) {
 	*out = *in
 	out.TypeMeta = in.TypeMeta
-	in.ObjectMeta.DeepCopyInto(&out.ObjectMeta)
-	in.Timestamp.DeepCopyInto(&out.Timestamp)
 	in.User.DeepCopyInto(&out.User)
 	if in.ImpersonatedUser != nil {
 		in, out := &in.ImpersonatedUser, &out.ImpersonatedUser
@@ -124,6 +122,8 @@ func (in *Event) DeepCopyInto(out *Event) {
 			(*in).DeepCopyInto(*out)
 		}
 	}
+	in.RequestReceivedTimestamp.DeepCopyInto(&out.RequestReceivedTimestamp)
+	in.StageTimestamp.DeepCopyInto(&out.StageTimestamp)
 	return
 }
 

staging/src/k8s.io/apiserver/pkg/audit/format.go

@@ -61,7 +61,7 @@ func EventString(ev *auditinternal.Event) string {
 	}
 
 	return fmt.Sprintf("%s AUDIT: id=%q stage=%q ip=%q method=%q user=%q groups=%q as=%q asgroups=%q namespace=%q uri=%q response=\"%s\"",
-		ev.Timestamp.Format(time.RFC3339Nano), ev.AuditID, ev.Stage, ip, ev.Verb, username, groups, asuser, asgroups, namespace, ev.RequestURI, response)
+		ev.RequestReceivedTimestamp.Format(time.RFC3339Nano), ev.AuditID, ev.Stage, ip, ev.Verb, username, groups, asuser, asgroups, namespace, ev.RequestURI, response)
 }
 
 func auditStringSlice(inList []string) string {

staging/src/k8s.io/apiserver/pkg/audit/request.go

@@ -40,7 +40,7 @@ import (
 
 func NewEventFromRequest(req *http.Request, level auditinternal.Level, attribs authorizer.Attributes) (*auditinternal.Event, error) {
 	ev := &auditinternal.Event{
-		Timestamp:  metav1.NewTime(time.Now()),
+		RequestReceivedTimestamp: metav1.NewMicroTime(time.Now()),
 		Verb:       attribs.GetVerb(),
 		RequestURI: req.URL.RequestURI(),
 	}

staging/src/k8s.io/apiserver/pkg/endpoints/filters/audit.go

@@ -148,7 +148,12 @@ func processAuditEvent(sink audit.Sink, ev *auditinternal.Event, omitStages []au
 			return
 		}
 	}
-	ev.CreationTimestamp = metav1.NewTime(time.Now())
+
+	if ev.Stage == auditinternal.StageRequestReceived {
+		ev.StageTimestamp = metav1.NewMicroTime(ev.RequestReceivedTimestamp.Time)
+	} else {
+		ev.StageTimestamp = metav1.NewMicroTime(time.Now())
+	}
 	audit.ObserveEvent()
 	sink.ProcessEvents(ev)
 }

staging/src/k8s.io/apiserver/plugin/pkg/audit/log/backend_test.go

@@ -73,10 +73,10 @@ func TestLogEventsLegacy(t *testing.T) {
 				SourceIPs: []string{
 					"127.0.0.1",
 				},
-				Timestamp: metav1.NewTime(time.Now()),
+				RequestReceivedTimestamp: metav1.NewMicroTime(time.Now()),
-				AuditID:   types.UID(uuid.NewRandom().String()),
+				AuditID:                  types.UID(uuid.NewRandom().String()),
-				Stage:     auditinternal.StageRequestReceived,
+				Stage:                    auditinternal.StageRequestReceived,
-				Verb:      "get",
+				Verb:                     "get",
 				User: auditinternal.UserInfo{
 					Username: "admin",
 					Groups: []string{
@@ -130,13 +130,11 @@ func TestLogEventsJson(t *testing.T) {
 			SourceIPs: []string{
 				"127.0.0.1",
 			},
-			// When encoding to json format, the nanosecond part of timestamp is
+			RequestReceivedTimestamp: metav1.NewMicroTime(time.Now().Truncate(time.Microsecond)),
-			// lost and it will become zero when we decode event back, so we rounding
+			StageTimestamp:           metav1.NewMicroTime(time.Now().Truncate(time.Microsecond)),
-			// timestamp down to a multiple of second.
+			AuditID:                  types.UID(uuid.NewRandom().String()),
-			Timestamp: metav1.NewTime(time.Now().Truncate(time.Second)),
+			Stage:                    auditinternal.StageRequestReceived,
-			AuditID:   types.UID(uuid.NewRandom().String()),
+			Verb:                     "get",
-			Stage:     auditinternal.StageRequestReceived,
-			Verb:      "get",
 			User: auditinternal.UserInfo{
 				Username: "admin",
 				Groups: []string{