Add servedVersions info in StorageVersion API

api/openapi-spec/swagger.json

@@ -843,6 +843,14 @@
         "encodingVersion": {
           "description": "The API server encodes the object to this version when persisting it in the backend (e.g., etcd).",
           "type": "string"
+        },
+        "servedVersions": {
+          "description": "The API server can serve these versions. DecodableVersions must include all ServedVersions.",
+          "items": {
+            "type": "string"
+          },
+          "type": "array",
+          "x-kubernetes-list-type": "set"
         }
       },
       "type": "object"

api/openapi-spec/v3/apis__internal.apiserver.k8s.io__v1alpha1_openapi.json

@@ -20,6 +20,15 @@
           "encodingVersion": {
             "description": "The API server encodes the object to this version when persisting it in the backend (e.g., etcd).",
             "type": "string"
+          },
+          "servedVersions": {
+            "description": "The API server can serve these versions. DecodableVersions must include all ServedVersions.",
+            "items": {
+              "default": "",
+              "type": "string"
+            },
+            "type": "array",
+            "x-kubernetes-list-type": "set"
           }
         },
         "type": "object"

pkg/apis/apiserverinternal/types.go

@@ -70,6 +70,10 @@ type ServerStorageVersion struct {
 	// The API server can decode objects encoded in these versions.
 	// The encodingVersion must be included in the decodableVersions.
 	DecodableVersions []string
+
+	// The API server can serve these versions.
+	// DecodableVersions must include all ServedVersions.
+	ServedVersions []string
 }
 
 // StorageVersionConditionType Indicates the storage version condition type

pkg/apis/apiserverinternal/v1alpha1/zz_generated.conversion.go

@@ -104,6 +104,7 @@ func autoConvert_v1alpha1_ServerStorageVersion_To_apiserverinternal_ServerStorag
 	out.APIServerID = in.APIServerID
 	out.EncodingVersion = in.EncodingVersion
 	out.DecodableVersions = *(*[]string)(unsafe.Pointer(&in.DecodableVersions))
+	out.ServedVersions = *(*[]string)(unsafe.Pointer(&in.ServedVersions))
 	return nil
 }
 
@@ -116,6 +117,7 @@ func autoConvert_apiserverinternal_ServerStorageVersion_To_v1alpha1_ServerStorag
 	out.APIServerID = in.APIServerID
 	out.EncodingVersion = in.EncodingVersion
 	out.DecodableVersions = *(*[]string)(unsafe.Pointer(&in.DecodableVersions))
+	out.ServedVersions = *(*[]string)(unsafe.Pointer(&in.ServedVersions))
 	return nil
 }
 

pkg/apis/apiserverinternal/validation/validation.go

@@ -98,6 +98,22 @@ func validateServerStorageVersion(ssv apiserverinternal.ServerStorageVersion, fl
 	if !found {
 		allErrs = append(allErrs, field.Invalid(fldPath.Child("decodableVersions"), ssv.DecodableVersions, fmt.Sprintf("decodableVersions must include encodingVersion %s", ssv.EncodingVersion)))
 	}
+
+	for i, sv := range ssv.ServedVersions {
+		if errs := isValidAPIVersion(sv); len(errs) > 0 {
+			allErrs = append(allErrs, field.Invalid(fldPath.Child("servedVersions").Index(i), sv, strings.Join(errs, ",")))
+		}
+		foundDecodableVersion := false
+		for _, dv := range ssv.DecodableVersions {
+			if sv == dv {
+				foundDecodableVersion = true
+				break
+			}
+		}
+		if !foundDecodableVersion {
+			allErrs = append(allErrs, field.Invalid(fldPath.Child("servedVersions").Index(i), sv, fmt.Sprintf("individual served version : %s must be included in decodableVersions : %s", sv, ssv.DecodableVersions)))
+		}
+	}
 	return allErrs
 }
 

pkg/apis/apiserverinternal/validation/validation_test.go

@@ -33,6 +33,7 @@ func TestValidateServerStorageVersion(t *testing.T) {
 			APIServerID:       "-fea",
 			EncodingVersion:   "v1alpha1",
 			DecodableVersions: []string{"v1alpha1", "v1"},
+			ServedVersions:    []string{"v1alpha1", "v1"},
 		},
 		expectedErr: "apiServerID: Invalid value",
 	}, {
@@ -40,6 +41,7 @@ func TestValidateServerStorageVersion(t *testing.T) {
 			APIServerID:       "fea",
 			EncodingVersion:   "v1alpha1",
 			DecodableVersions: []string{"v1beta1", "v1"},
+			ServedVersions:    []string{"v1beta1", "v1"},
 		},
 		expectedErr: "decodableVersions must include encodingVersion",
 	}, {
@@ -47,6 +49,7 @@ func TestValidateServerStorageVersion(t *testing.T) {
 			APIServerID:       "fea",
 			EncodingVersion:   "v1alpha1",
 			DecodableVersions: []string{"v1alpha1", "v1", "-fea"},
+			ServedVersions:    []string{"v1alpha1", "v1", "-fea"},
 		},
 		expectedErr: "decodableVersions[2]: Invalid value",
 	}, {
@@ -54,6 +57,15 @@ func TestValidateServerStorageVersion(t *testing.T) {
 			APIServerID:       "fea",
 			EncodingVersion:   "v1alpha1",
 			DecodableVersions: []string{"v1alpha1", "v1"},
+			ServedVersions:    []string{"v1alpha1", "v1"},
+		},
+		expectedErr: "",
+	}, {
+		ssv: apiserverinternal.ServerStorageVersion{
+			APIServerID:       "fea",
+			EncodingVersion:   "v1alpha1",
+			DecodableVersions: []string{"v1alpha1", "v1"},
+			ServedVersions:    []string{"v1alpha1", "v1"},
 		},
 		expectedErr: "",
 	}, {
@@ -61,20 +73,39 @@ func TestValidateServerStorageVersion(t *testing.T) {
 			APIServerID:       "fea",
 			EncodingVersion:   "mygroup.com/v2",
 			DecodableVersions: []string{"v1alpha1", "v1", "mygroup.com/v2"},
+			ServedVersions:    []string{"v1alpha1", "v1", "mygroup.com/v2"},
 		},
 		expectedErr: "",
+	}, {
+		ssv: apiserverinternal.ServerStorageVersion{
+			APIServerID:       "fea",
+			EncodingVersion:   "v1alpha1",
+			DecodableVersions: []string{"v1alpha1", "v1"},
+			ServedVersions:    []string{"/v3"},
+		},
+		expectedErr: `[].servedVersions[0]: Invalid value: "/v3": group part: must be non-empty`,
 	}, {
 		ssv: apiserverinternal.ServerStorageVersion{
 			APIServerID:       "fea",
 			EncodingVersion:   "mygroup.com/v2",
 			DecodableVersions: []string{"mygroup.com/v2", "/v3"},
+			ServedVersions:    []string{"mygroup.com/v2", "/v3"},
 		},
 		expectedErr: `[].decodableVersions[1]: Invalid value: "/v3": group part: must be non-empty`,
+	}, {
+		ssv: apiserverinternal.ServerStorageVersion{
+			APIServerID:       "fea",
+			EncodingVersion:   "mygroup.com/v2",
+			DecodableVersions: []string{"mygroup.com/v2", "/v3"},
+			ServedVersions:    []string{"mygroup.com/"},
+		},
+		expectedErr: `[].servedVersions[0]: Invalid value: "mygroup.com/": version part: must be non-empty`,
 	}, {
 		ssv: apiserverinternal.ServerStorageVersion{
 			APIServerID:       "fea",
 			EncodingVersion:   "mygroup.com/v2",
 			DecodableVersions: []string{"mygroup.com/v2", "mygroup.com/"},
+			ServedVersions:    []string{"mygroup.com/v2", "mygroup.com/"},
 		},
 		expectedErr: `[].decodableVersions[1]: Invalid value: "mygroup.com/": version part: must be non-empty`,
 	}, {
@@ -82,6 +113,7 @@ func TestValidateServerStorageVersion(t *testing.T) {
 			APIServerID:       "fea",
 			EncodingVersion:   "/v3",
 			DecodableVersions: []string{"mygroup.com/v2", "/v3"},
+			ServedVersions:    []string{"mygroup.com/v2", "/v3"},
 		},
 		expectedErr: `[].encodingVersion: Invalid value: "/v3": group part: must be non-empty`,
 	}, {
@@ -89,22 +121,57 @@ func TestValidateServerStorageVersion(t *testing.T) {
 			APIServerID:       "fea",
 			EncodingVersion:   "v1",
 			DecodableVersions: []string{"v1", "mygroup_com/v2"},
+			ServedVersions:    []string{"v1", "mygroup_com/v2"},
 		},
 		expectedErr: `[].decodableVersions[1]: Invalid value: "mygroup_com/v2": group part: a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')`,
+	}, {
+		ssv: apiserverinternal.ServerStorageVersion{
+			APIServerID:       "fea",
+			EncodingVersion:   "v1",
+			DecodableVersions: []string{"v1", "mygroup.com/v2"},
+			ServedVersions:    []string{"v1", "mygroup_com/v2"},
+		},
+		expectedErr: `[].servedVersions[1]: Invalid value: "mygroup_com/v2": group part: a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')`,
 	}, {
 		ssv: apiserverinternal.ServerStorageVersion{
 			APIServerID:       "fea",
 			EncodingVersion:   "v1",
 			DecodableVersions: []string{"v1", "mygroup.com/v2_"},
+			ServedVersions:    []string{"v1", "mygroup.com/v2_"},
 		},
 		expectedErr: `[].decodableVersions[1]: Invalid value: "mygroup.com/v2_": version part: a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name',  or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')`,
+	}, {
+		ssv: apiserverinternal.ServerStorageVersion{
+			APIServerID:       "fea",
+			EncodingVersion:   "v1",
+			DecodableVersions: []string{"v1", "mygroup.com/v2"},
+			ServedVersions:    []string{"v1", "mygroup.com/v2_"},
+		},
+		expectedErr: `[].servedVersions[1]: Invalid value: "mygroup.com/v2_": version part: a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name',  or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')`,
 	}, {
 		ssv: apiserverinternal.ServerStorageVersion{
 			APIServerID:       "fea",
 			EncodingVersion:   "v1",
 			DecodableVersions: []string{"v1", "mygroup.com/v2/myresource"},
+			ServedVersions:    []string{"v1", "mygroup.com/v2/myresource"},
 		},
 		expectedErr: `[].decodableVersions[1]: Invalid value: "mygroup.com/v2/myresource": an apiVersion is a DNS-1035 label, which must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name',  or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?') with an optional DNS subdomain prefix and '/' (e.g. 'example.com/MyVersion')`,
+	}, {
+		ssv: apiserverinternal.ServerStorageVersion{
+			APIServerID:       "fea",
+			EncodingVersion:   "v1",
+			DecodableVersions: []string{"v1", "mygroup.com/v2"},
+			ServedVersions:    []string{"v1", "mygroup.com/v2/myresource"},
+		},
+		expectedErr: `[].servedVersions[1]: Invalid value: "mygroup.com/v2/myresource": an apiVersion is a DNS-1035 label, which must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name',  or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?') with an optional DNS subdomain prefix and '/' (e.g. 'example.com/MyVersion')`,
+	}, {
+		ssv: apiserverinternal.ServerStorageVersion{
+			APIServerID:       "fea",
+			EncodingVersion:   "v1alpha1",
+			DecodableVersions: []string{"v1alpha1", "v1"},
+			ServedVersions:    []string{"v2"},
+		},
+		expectedErr: `[].servedVersions[0]: Invalid value: "v2": individual served version : v2 must be included in decodableVersions : [v1alpha1 v1]`,
 	}}
 
 	for _, tc := range cases {

pkg/apis/apiserverinternal/zz_generated.deepcopy.go

@@ -33,6 +33,11 @@ func (in *ServerStorageVersion) DeepCopyInto(out *ServerStorageVersion) {
 		*out = make([]string, len(*in))
 		copy(*out, *in)
 	}
+	if in.ServedVersions != nil {
+		in, out := &in.ServedVersions, &out.ServedVersions
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
 	return
 }
 

pkg/generated/openapi/zz_generated.openapi.go

@@ -3743,6 +3743,26 @@ func schema_k8sio_api_apiserverinternal_v1alpha1_ServerStorageVersion(ref common
 							},
 						},
 					},
+					"servedVersions": {
+						VendorExtensible: spec.VendorExtensible{
+							Extensions: spec.Extensions{
+								"x-kubernetes-list-type": "set",
+							},
+						},
+						SchemaProps: spec.SchemaProps{
+							Description: "The API server can serve these versions. DecodableVersions must include all ServedVersions.",
+							Type:        []string{"array"},
+							Items: &spec.SchemaOrArray{
+								Schema: &spec.Schema{
+									SchemaProps: spec.SchemaProps{
+										Default: "",
+										Type:    []string{"string"},
+										Format:  "",
+									},
+								},
+							},
+						},
+					},
 				},
 			},
 		},

staging/src/k8s.io/api/apiserverinternal/v1alpha1/generated.pb.go

@@ -225,55 +225,57 @@ func init() {
 }
 
 var fileDescriptor_a3903ff5e3cc7a03 = []byte{
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-	0x2b, 0xef, 0x4f, 0x4d, 0xf3, 0x9b, 0xb6, 0xbc, 0x7f, 0x4d, 0x44, 0x6b, 0x9d, 0x55, 0x6d, 0xbf,
+	0x2a, 0x6b, 0x9f, 0x66, 0x40, 0x71, 0x44, 0x8d, 0x57, 0x60, 0x5e, 0x1c, 0x95, 0x85, 0x39, 0x96,
-	0xfe, 0x91, 0x98, 0x7c, 0x8f, 0x70, 0x6c, 0xc0, 0xb8, 0x0b, 0x30, 0xb0, 0xa1, 0x3e, 0x2b, 0x7c,
+	0x52, 0x14, 0xea, 0xff, 0x69, 0x43, 0xbb, 0x24, 0x8a, 0x6b, 0x7e, 0xdb, 0x96, 0xde, 0xd1, 0x44,
-	0x0b, 0x72, 0xcc, 0x27, 0xa6, 0xec, 0xb8, 0x50, 0x5b, 0xd7, 0xc6, 0x12, 0x94, 0x96, 0x2c, 0xf3,
+	0xb5, 0xd6, 0xdb, 0xd0, 0x8e, 0x9a, 0x6f, 0x88, 0xc9, 0x0f, 0x09, 0xc7, 0x06, 0x8c, 0x15, 0x00,
-	0xc0, 0x27, 0xa6, 0xf1, 0x4f, 0x9c, 0x26, 0x27, 0x4e, 0x48, 0x92, 0x42, 0x13, 0xe4, 0x19, 0xc7,
+	0xc3, 0x18, 0x4a, 0x58, 0xe1, 0x0b, 0x90, 0x63, 0x3e, 0x31, 0xa5, 0x5a, 0x85, 0xfa, 0x96, 0x36,
-	0xbc, 0x2d, 0x66, 0x21, 0xe8, 0x9f, 0x5c, 0x8f, 0x5e, 0x52, 0x18, 0xb3, 0x71, 0x82, 0x7c, 0x74,
+	0x95, 0x19, 0xb5, 0xf4, 0x98, 0x0d, 0x9f, 0x98, 0xc6, 0x4f, 0x71, 0x9b, 0x9c, 0x58, 0x21, 0x49,
-	0x46, 0x31, 0x75, 0xf5, 0x6b, 0x16, 0x2c, 0x26, 0x01, 0x9b, 0xd4, 0xb3, 0x1c, 0x2e, 0xe6, 0xf7,
+	0x0a, 0x4d, 0x90, 0x67, 0x1c, 0xf3, 0xae, 0xd0, 0x51, 0xd0, 0xdf, 0xbf, 0x1d, 0xbd, 0xa4, 0x30,
-	0x0c, 0xe4, 0xf8, 0xb1, 0x4f, 0x62, 0x29, 0xdc, 0xeb, 0x95, 0x78, 0x78, 0xec, 0x93, 0x8b, 0x6e,
+	0x8a, 0x71, 0x83, 0x7c, 0xb4, 0x46, 0x31, 0x75, 0xed, 0x63, 0x16, 0xac, 0xa4, 0x01, 0x3b, 0xd4,
-	0xe5, 0xe6, 0x15, 0x30, 0xe1, 0x46, 0x12, 0x08, 0xd7, 0xfb, 0x1d, 0x44, 0x92, 0xb8, 0x95, 0x2c,
+	0xb3, 0x1c, 0x2e, 0xf4, 0x7b, 0x08, 0x72, 0xfc, 0xd4, 0x27, 0xb1, 0x8d, 0xfe, 0x19, 0x8c, 0x78,
-	0xe2, 0xa2, 0x5b, 0x29, 0xf6, 0x61, 0xc9, 0xba, 0xe0, 0x0b, 0x00, 0x69, 0x5d, 0x76, 0x68, 0x3d,
+	0x7c, 0xea, 0x93, 0xab, 0x7e, 0xf5, 0xf7, 0x1b, 0x60, 0x22, 0x8d, 0x24, 0x10, 0x6e, 0x25, 0x3b,
-	0x8f, 0x14, 0x2c, 0x94, 0x25, 0x06, 0x91, 0x35, 0xca, 0x31, 0x0d, 0xdc, 0x1f, 0x89, 0x40, 0x29,
+	0x88, 0xec, 0xf4, 0x47, 0x7a, 0x88, 0xab, 0x7e, 0xb5, 0x94, 0xc0, 0xd2, 0x73, 0xc1, 0xc7, 0x00,
-	0x28, 0xd8, 0x01, 0xb0, 0x85, 0x19, 0x3f, 0x0c, 0xb0, 0xc7, 0xa2, 0x12, 0x1d, 0x97, 0x94, 0x72,
+	0xd2, 0x66, 0x74, 0xc4, 0x8f, 0x22, 0xf7, 0x0b, 0x57, 0x0a, 0x21, 0xb2, 0x46, 0x25, 0xa6, 0x81,
-	0x72, 0xa8, 0x77, 0xc7, 0x53, 0x84, 0x40, 0x0c, 0xf2, 0xee, 0x8e, 0xb0, 0xa1, 0x94, 0x0c, 0xf0,
+	0x47, 0x63, 0x15, 0x68, 0x02, 0x0a, 0xf6, 0x00, 0xec, 0x60, 0xc6, 0x8f, 0x03, 0xec, 0xb1, 0x68,
-	0x36, 0xc8, 0x07, 0x04, 0x33, 0xea, 0x95, 0x26, 0x65, 0xfb, 0xfd, 0x3b, 0x40, 0xd2, 0x8a, 0x62,
+	0x44, 0xc7, 0x25, 0xe5, 0x9c, 0x14, 0xf5, 0xef, 0xe9, 0x1c, 0x21, 0x10, 0xc3, 0xbe, 0x07, 0x63,
-	0x2f, 0xbc, 0x03, 0xa6, 0x5c, 0xc2, 0x18, 0xb6, 0x49, 0x29, 0x2f, 0x03, 0x8b, 0x71, 0xe0, 0xd4,
+	0x6c, 0x68, 0x42, 0x07, 0xf8, 0x27, 0xc8, 0x07, 0x04, 0x33, 0xea, 0x95, 0x67, 0xe5, 0xf6, 0x93,
-	0x5e, 0x64, 0x46, 0x3d, 0x7f, 0xf5, 0xbb, 0x02, 0x60, 0x72, 0xee, 0xbb, 0x0e, 0xe3, 0xf0, 0xdd,
+	0x33, 0x40, 0x32, 0x8a, 0xe2, 0x2c, 0xfc, 0x0b, 0xcc, 0xb9, 0x84, 0x31, 0x6c, 0x93, 0x72, 0x5e,
-	0x88, 0xd2, 0xb5, 0xf1, 0xfa, 0x12, 0x68, 0xa9, 0xf3, 0xff, 0xe2, 0x94, 0xd3, 0x3d, 0xcb, 0x25,
+	0x16, 0x96, 0xe2, 0xc2, 0xb9, 0xc3, 0x28, 0x8c, 0x06, 0xf9, 0xda, 0x67, 0x05, 0xc0, 0xb4, 0xee,
-	0x95, 0x1f, 0x81, 0x49, 0x87, 0x13, 0x57, 0xdc, 0x62, 0x76, 0xa5, 0x50, 0x5b, 0xbb, 0x96, 0x0e,
+	0x07, 0x0e, 0xe3, 0xf0, 0xe5, 0x98, 0xd3, 0xb5, 0xe9, 0xf6, 0x25, 0xd0, 0xd2, 0xe7, 0xbf, 0xc4,
-	0x8d, 0x7f, 0xe3, 0x0c, 0x93, 0x3b, 0x82, 0x0b, 0x45, 0x94, 0xd5, 0xf9, 0xe1, 0x7e, 0xc4, 0x03,
+	0x2d, 0xe7, 0x07, 0x91, 0x6b, 0x2e, 0x3f, 0x01, 0xb3, 0x0e, 0x27, 0xae, 0x38, 0xc5, 0xec, 0x7a,
-	0xa8, 0xfe, 0x9c, 0x00, 0xf3, 0x69, 0x32, 0x86, 0x9f, 0x40, 0x91, 0x25, 0xec, 0xac, 0xa4, 0xc8,
+	0xa1, 0xbe, 0x79, 0x2b, 0x1f, 0x1a, 0x3f, 0xc7, 0x1d, 0x66, 0xf7, 0x05, 0x17, 0x8a, 0x28, 0x6b,
-	0xa2, 0xc6, 0x7e, 0x1c, 0x29, 0xab, 0x6f, 0xb0, 0xaa, 0x92, 0x76, 0x86, 0x86, 0x93, 0xc1, 0x7d,
+	0x4b, 0xa3, 0xfb, 0x11, 0x17, 0xa0, 0xf6, 0x45, 0x3c, 0x70, 0x13, 0x6c, 0x0c, 0xdf, 0x82, 0x12,
-	0xb0, 0x60, 0x52, 0xd7, 0xa5, 0xde, 0x76, 0xea, 0xce, 0xbb, 0x11, 0x76, 0x2b, 0x0b, 0x9b, 0x69,
+	0x4b, 0xc5, 0x59, 0x59, 0x91, 0x43, 0x4d, 0x7d, 0x39, 0x26, 0x3c, 0x9b, 0xc3, 0x67, 0x2e, 0x1d,
-	0x01, 0x28, 0x1d, 0x07, 0x03, 0x00, 0xcc, 0xde, 0x13, 0x88, 0x96, 0x5e, 0xa1, 0xf6, 0xf4, 0x5a,
+	0x67, 0x68, 0xb4, 0x19, 0x3c, 0x02, 0xcb, 0x26, 0x75, 0x5d, 0xea, 0xed, 0x4d, 0x7c, 0x2f, 0x7f,
-	0x03, 0xee, 0xbf, 0xa4, 0xc1, 0xce, 0xea, 0x9b, 0x18, 0xba, 0x94, 0xc5, 0x78, 0x79, 0x72, 0xae,
+	0x0b, 0xfb, 0xd5, 0xe5, 0x9d, 0x49, 0x05, 0x68, 0x32, 0x0e, 0x06, 0x00, 0x98, 0x83, 0x2b, 0x10,
-	0x66, 0x4e, 0xcf, 0xd5, 0xcc, 0xd9, 0xb9, 0x9a, 0xf9, 0x1c, 0xaa, 0xca, 0x49, 0xa8, 0x2a, 0xa7,
+	0x3d, 0x98, 0x85, 0xfa, 0x83, 0x5b, 0x09, 0x9c, 0xdc, 0xa4, 0xe1, 0x9b, 0x95, 0x84, 0x18, 0xba,
-	0xa1, 0xaa, 0x9c, 0x85, 0xaa, 0xf2, 0x2b, 0x54, 0x95, 0x2f, 0xbf, 0xd5, 0xcc, 0xd1, 0xf2, 0x58,
+	0xd6, 0xc5, 0x78, 0x72, 0x76, 0xa9, 0x66, 0xce, 0x2f, 0xd5, 0xcc, 0xc5, 0xa5, 0x9a, 0x79, 0x17,
-	0x1f, 0xd5, 0x3f, 0x01, 0x00, 0x00, 0xff, 0xff, 0xa0, 0xd0, 0x65, 0xbc, 0x95, 0x07, 0x00, 0x00,
+	0xaa, 0xca, 0x59, 0xa8, 0x2a, 0xe7, 0xa1, 0xaa, 0x5c, 0x84, 0xaa, 0xf2, 0x35, 0x54, 0x95, 0xf7,
+	0xdf, 0xd4, 0xcc, 0xc9, 0xda, 0x54, 0x1f, 0xe4, 0xef, 0x01, 0x00, 0x00, 0xff, 0xff, 0xa0, 0x3a,
+	0x2e, 0x07, 0xd1, 0x07, 0x00, 0x00,
 }
 
 func (m *ServerStorageVersion) Marshal() (dAtA []byte, err error) {
@@ -296,6 +298,15 @@ func (m *ServerStorageVersion) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if len(m.ServedVersions) > 0 {
+		for iNdEx := len(m.ServedVersions) - 1; iNdEx >= 0; iNdEx-- {
+			i -= len(m.ServedVersions[iNdEx])
+			copy(dAtA[i:], m.ServedVersions[iNdEx])
+			i = encodeVarintGenerated(dAtA, i, uint64(len(m.ServedVersions[iNdEx])))
+			i--
+			dAtA[i] = 0x22
+		}
+	}
 	if len(m.DecodableVersions) > 0 {
 		for iNdEx := len(m.DecodableVersions) - 1; iNdEx >= 0; iNdEx-- {
 			i -= len(m.DecodableVersions[iNdEx])
@@ -582,6 +593,12 @@ func (m *ServerStorageVersion) Size() (n int) {
 			n += 1 + l + sovGenerated(uint64(l))
 		}
 	}
+	if len(m.ServedVersions) > 0 {
+		for _, s := range m.ServedVersions {
+			l = len(s)
+			n += 1 + l + sovGenerated(uint64(l))
+		}
+	}
 	return n
 }
 
@@ -685,6 +702,7 @@ func (this *ServerStorageVersion) String() string {
 		`APIServerID:` + fmt.Sprintf("%v", this.APIServerID) + `,`,
 		`EncodingVersion:` + fmt.Sprintf("%v", this.EncodingVersion) + `,`,
 		`DecodableVersions:` + fmt.Sprintf("%v", this.DecodableVersions) + `,`,
+		`ServedVersions:` + fmt.Sprintf("%v", this.ServedVersions) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -896,6 +914,38 @@ func (m *ServerStorageVersion) Unmarshal(dAtA []byte) error {
 			}
 			m.DecodableVersions = append(m.DecodableVersions, string(dAtA[iNdEx:postIndex]))
 			iNdEx = postIndex
+		case 4:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ServedVersions", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.ServedVersions = append(m.ServedVersions, string(dAtA[iNdEx:postIndex]))
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipGenerated(dAtA[iNdEx:])

staging/src/k8s.io/api/apiserverinternal/v1alpha1/generated.proto

@@ -42,6 +42,11 @@ message ServerStorageVersion {
   // The encodingVersion must be included in the decodableVersions.
   // +listType=set
   repeated string decodableVersions = 3;
+
+  // The API server can serve these versions.
+  // DecodableVersions must include all ServedVersions.
+  // +listType=set
+  repeated string servedVersions = 4;
 }
 
 // Storage version of a specific resource.

staging/src/k8s.io/api/apiserverinternal/v1alpha1/types.go

@@ -77,6 +77,11 @@ type ServerStorageVersion struct {
 	// The encodingVersion must be included in the decodableVersions.
 	// +listType=set
 	DecodableVersions []string `json:"decodableVersions,omitempty" protobuf:"bytes,3,opt,name=decodableVersions"`
+
+	// The API server can serve these versions.
+	// DecodableVersions must include all ServedVersions.
+	// +listType=set
+	ServedVersions []string `json:"servedVersions,omitempty" protobuf:"bytes,4,opt,name=servedVersions"`
 }
 
 type StorageVersionConditionType string

staging/src/k8s.io/api/apiserverinternal/v1alpha1/types_swagger_doc_generated.go

@@ -32,6 +32,7 @@ var map_ServerStorageVersion = map[string]string{
 	"apiServerID":       "The ID of the reporting API server.",
 	"encodingVersion":   "The API server encodes the object to this version when persisting it in the backend (e.g., etcd).",
 	"decodableVersions": "The API server can decode objects encoded in these versions. The encodingVersion must be included in the decodableVersions.",
+	"servedVersions":    "The API server can serve these versions. DecodableVersions must include all ServedVersions.",
 }
 
 func (ServerStorageVersion) SwaggerDoc() map[string]string {

staging/src/k8s.io/api/apiserverinternal/v1alpha1/zz_generated.deepcopy.go

@@ -33,6 +33,11 @@ func (in *ServerStorageVersion) DeepCopyInto(out *ServerStorageVersion) {
 		*out = make([]string, len(*in))
 		copy(*out, *in)
 	}
+	if in.ServedVersions != nil {
+		in, out := &in.ServedVersions, &out.ServedVersions
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
 	return
 }
 

staging/src/k8s.io/api/testdata/HEAD/internal.apiserver.k8s.io.v1alpha1.StorageVersion.json

@@ -51,6 +51,9 @@
         "encodingVersion": "encodingVersionValue",
         "decodableVersions": [
           "decodableVersionsValue"
+        ],
+        "servedVersions": [
+          "servedVersionsValue"
         ]
       }
     ],

staging/src/k8s.io/api/testdata/HEAD/internal.apiserver.k8s.io.v1alpha1.StorageVersion.yaml

@@ -47,3 +47,5 @@ status:
     decodableVersions:
     - decodableVersionsValue
     encodingVersion: encodingVersionValue
+    servedVersions:
+    - servedVersionsValue

staging/src/k8s.io/apiserver/pkg/storageversion/manager.go

@@ -25,6 +25,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
+	serverstorage "k8s.io/apiserver/pkg/server/storage"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/rest"
 	_ "k8s.io/component-base/metrics/prometheus/workqueue" // for workqueue metric registration
@@ -51,7 +52,7 @@ type Manager interface {
 	// AddResourceInfo records resources whose StorageVersions need updates
 	AddResourceInfo(resources ...*ResourceInfo)
 	// UpdateStorageVersions tries to update the StorageVersions of the recorded resources
-	UpdateStorageVersions(kubeAPIServerClientConfig *rest.Config, apiserverID string)
+	UpdateStorageVersions(kubeAPIServerClientConfig *rest.Config, apiserverID string, apiResourceConfigSource serverstorage.APIResourceConfigSource)
 	// PendingUpdate returns true if the StorageVersion of the given resource is still pending update.
 	PendingUpdate(gr schema.GroupResource) bool
 	// LastUpdateError returns the last error hit when updating the storage version of the given resource.
@@ -111,7 +112,7 @@ func (s *defaultManager) addPendingManagedStatusLocked(r *ResourceInfo) {
 }
 
 // UpdateStorageVersions tries to update the StorageVersions of the recorded resources
-func (s *defaultManager) UpdateStorageVersions(kubeAPIServerClientConfig *rest.Config, serverID string) {
+func (s *defaultManager) UpdateStorageVersions(kubeAPIServerClientConfig *rest.Config, serverID string, apiResourceConfigSource serverstorage.APIResourceConfigSource) {
 	clientset, err := kubernetes.NewForConfig(kubeAPIServerClientConfig)
 	if err != nil {
 		utilruntime.HandleError(fmt.Errorf("failed to get clientset: %v", err))
@@ -143,7 +144,14 @@ func (s *defaultManager) UpdateStorageVersions(kubeAPIServerClientConfig *rest.C
 		if len(gr.Group) == 0 {
 			gr.Group = "core"
 		}
-		if err := updateStorageVersionFor(sc, serverID, gr, r.EncodingVersion, decodableVersions); err != nil {
+
+		servedVersions := []string{}
+		for _, dv := range decodableVersions {
+			if apiResourceConfigSource.ResourceEnabled(gr.WithVersion(dv)) {
+				servedVersions = append(servedVersions, dv)
+			}
+		}
+		if err := updateStorageVersionFor(sc, serverID, gr, r.EncodingVersion, decodableVersions, servedVersions); err != nil {
 			utilruntime.HandleError(fmt.Errorf("failed to update storage version for %v: %v", r.GroupResource, err))
 			s.recordStatusFailure(&r, err)
 			hasFailure = true

staging/src/k8s.io/apiserver/pkg/storageversion/updater.go

@@ -123,12 +123,12 @@ func setStatusCondition(conditions *[]v1alpha1.StorageVersionCondition, newCondi
 }
 
 // updateStorageVersionFor updates the storage version object for the resource.
-func updateStorageVersionFor(c Client, apiserverID string, gr schema.GroupResource, encodingVersion string, decodableVersions []string) error {
+func updateStorageVersionFor(c Client, apiserverID string, gr schema.GroupResource, encodingVersion string, decodableVersions []string, servedVersions []string) error {
 	retries := 3
 	var retry int
 	var err error
 	for retry < retries {
-		err = singleUpdate(c, apiserverID, gr, encodingVersion, decodableVersions)
+		err = singleUpdate(c, apiserverID, gr, encodingVersion, decodableVersions, servedVersions)
 		if err == nil {
 			return nil
 		}
@@ -145,7 +145,7 @@ func updateStorageVersionFor(c Client, apiserverID string, gr schema.GroupResour
 	return err
 }
 
-func singleUpdate(c Client, apiserverID string, gr schema.GroupResource, encodingVersion string, decodableVersions []string) error {
+func singleUpdate(c Client, apiserverID string, gr schema.GroupResource, encodingVersion string, decodableVersions []string, servedVersions []string) error {
 	shouldCreate := false
 	name := fmt.Sprintf("%s.%s", gr.Group, gr.Resource)
 	sv, err := c.Get(context.TODO(), name, metav1.GetOptions{})
@@ -157,7 +157,7 @@ func singleUpdate(c Client, apiserverID string, gr schema.GroupResource, encodin
 		sv = &v1alpha1.StorageVersion{}
 		sv.ObjectMeta.Name = name
 	}
-	updatedSV := localUpdateStorageVersion(sv, apiserverID, encodingVersion, decodableVersions)
+	updatedSV := localUpdateStorageVersion(sv, apiserverID, encodingVersion, decodableVersions, servedVersions)
 	if shouldCreate {
 		createdSV, err := c.Create(context.TODO(), updatedSV, metav1.CreateOptions{})
 		if err != nil {
@@ -174,11 +174,12 @@ func singleUpdate(c Client, apiserverID string, gr schema.GroupResource, encodin
 
 // localUpdateStorageVersion updates the input storageversion with given server storageversion info.
 // The function updates the input storageversion in place.
-func localUpdateStorageVersion(sv *v1alpha1.StorageVersion, apiserverID, encodingVersion string, decodableVersions []string) *v1alpha1.StorageVersion {
+func localUpdateStorageVersion(sv *v1alpha1.StorageVersion, apiserverID, encodingVersion string, decodableVersions []string, servedVersions []string) *v1alpha1.StorageVersion {
 	newSSV := v1alpha1.ServerStorageVersion{
 		APIServerID:       apiserverID,
 		EncodingVersion:   encodingVersion,
 		DecodableVersions: decodableVersions,
+		ServedVersions:    servedVersions,
 	}
 	foundSSV := false
 	for i, ssv := range sv.Status.StorageVersions {

staging/src/k8s.io/apiserver/pkg/storageversion/updater_test.go

@@ -32,27 +32,32 @@ var (
 		APIServerID:       "1",
 		EncodingVersion:   "v1",
 		DecodableVersions: []string{"v1", "v2"},
+		ServedVersions:    []string{"v1"},
 	}
 	ssv2 = v1alpha1.ServerStorageVersion{
 		APIServerID:       "2",
 		EncodingVersion:   "v1",
 		DecodableVersions: []string{"v1", "v2"},
+		ServedVersions:    []string{"v1", "v2"},
 	}
 	// ssv3 has a different encoding version
 	ssv3 = v1alpha1.ServerStorageVersion{
 		APIServerID:       "3",
 		EncodingVersion:   "v2",
 		DecodableVersions: []string{"v1", "v2"},
+		ServedVersions:    []string{"v1", "v2"},
 	}
 	ssv4 = v1alpha1.ServerStorageVersion{
 		APIServerID:       "4",
 		EncodingVersion:   "v1",
 		DecodableVersions: []string{"v1", "v2", "v4"},
+		ServedVersions:    []string{"v1", "v2"},
 	}
 	ssv5 = v1alpha1.ServerStorageVersion{
 		APIServerID:       "5",
 		EncodingVersion:   "v2",
 		DecodableVersions: []string{"v1", "v2", "v4"},
+		ServedVersions:    []string{"v1", "v2"},
 	}
 )
 
@@ -114,7 +119,7 @@ func TestLocalUpdateStorageVersion(t *testing.T) {
 
 	for _, tc := range tests {
 		sv := &v1alpha1.StorageVersion{Status: tc.old}
-		updated := localUpdateStorageVersion(sv, tc.newSSV.APIServerID, tc.newSSV.EncodingVersion, tc.newSSV.DecodableVersions)
+		updated := localUpdateStorageVersion(sv, tc.newSSV.APIServerID, tc.newSSV.EncodingVersion, tc.newSSV.DecodableVersions, tc.newSSV.ServedVersions)
 		if tc.expectLastTransitionTimeUpdate == updated.Status.Conditions[0].LastTransitionTime.IsZero() {
 			t.Errorf("unexpected LastTransitionTime, expected update: %v, got: %v",
 				tc.expectLastTransitionTimeUpdate, updated.Status.Conditions[0].LastTransitionTime)

staging/src/k8s.io/client-go/applyconfigurations/apiserverinternal/v1alpha1/serverstorageversion.go

@@ -24,6 +24,7 @@ type ServerStorageVersionApplyConfiguration struct {
 	APIServerID       *string  `json:"apiServerID,omitempty"`
 	EncodingVersion   *string  `json:"encodingVersion,omitempty"`
 	DecodableVersions []string `json:"decodableVersions,omitempty"`
+	ServedVersions    []string `json:"servedVersions,omitempty"`
 }
 
 // ServerStorageVersionApplyConfiguration constructs an declarative configuration of the ServerStorageVersion type for use with
@@ -57,3 +58,13 @@ func (b *ServerStorageVersionApplyConfiguration) WithDecodableVersions(values ..
 	}
 	return b
 }
+
+// WithServedVersions adds the given value to the ServedVersions field in the declarative configuration
+// and returns the receiver, so that objects can be build by chaining "With" function invocations.
+// If called multiple times, values provided by each call will be appended to the ServedVersions field.
+func (b *ServerStorageVersionApplyConfiguration) WithServedVersions(values ...string) *ServerStorageVersionApplyConfiguration {
+	for i := range values {
+		b.ServedVersions = append(b.ServedVersions, values[i])
+	}
+	return b
+}

staging/src/k8s.io/client-go/applyconfigurations/internal/internal.go

@@ -695,6 +695,12 @@ var schemaYAML = typed.YAMLObject(`types:
     - name: encodingVersion
       type:
         scalar: string
+    - name: servedVersions
+      type:
+        list:
+          elementType:
+            scalar: string
+          elementRelationship: associative
 - name: io.k8s.api.apiserverinternal.v1alpha1.StorageVersion
   map:
     fields:

staging/src/k8s.io/kube-aggregator/pkg/apiserver/apiserver.go

@@ -367,7 +367,7 @@ func (c completedConfig) NewWithDelegate(delegationTarget genericapiserver.Deleg
 				// All apiservers (aggregator-apiserver, kube-apiserver, apiextensions-apiserver)
 				// share the same generic apiserver config. The same StorageVersion manager is used
 				// to register all built-in resources when the generic apiservers install APIs.
-				s.GenericAPIServer.StorageVersionManager.UpdateStorageVersions(hookContext.LoopbackClientConfig, s.GenericAPIServer.APIServerID)
+				s.GenericAPIServer.StorageVersionManager.UpdateStorageVersions(hookContext.LoopbackClientConfig, s.GenericAPIServer.APIServerID, c.GenericConfig.MergedResourceConfig)
 				return false, nil
 			}, hookContext.StopCh)
 			// Once the storage version updater finishes the first round of update,

test/integration/storageversion/storage_version_filter_test.go

@@ -31,6 +31,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/apiserver/pkg/features"
+	serverstorage "k8s.io/apiserver/pkg/server/storage"
 	"k8s.io/apiserver/pkg/storageversion"
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/dynamic"
@@ -52,9 +53,9 @@ type wrappedStorageVersionManager struct {
 	completed      <-chan struct{}
 }
 
-func (w *wrappedStorageVersionManager) UpdateStorageVersions(loopbackClientConfig *rest.Config, serverID string) {
+func (w *wrappedStorageVersionManager) UpdateStorageVersions(loopbackClientConfig *rest.Config, serverID string, apiResourceConfigSource serverstorage.APIResourceConfigSource) {
 	<-w.startUpdateSV
-	w.Manager.UpdateStorageVersions(loopbackClientConfig, serverID)
+	w.Manager.UpdateStorageVersions(loopbackClientConfig, serverID, apiResourceConfigSource)
 	close(w.updateFinished)
 	<-w.finishUpdateSV
 }