Merge pull request #119807 from jpbetz/automated-cherry-pick-of-#119800-origin-release-1.28

Automated cherry pick of #119800: Fixes CEL estimated cost to propagate result sizes correctly

Kubernetes-commit: ab3cebfdb2cd1054f34f4287a757755810ede009

Author: k8s-publishing-bot

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/emicklei/go-restful/v3 v3.9.0
 	github.com/evanphx/json-patch v4.12.0+incompatible
 	github.com/gogo/protobuf v1.3.2
-	github.com/google/cel-go v0.16.0
+	github.com/google/cel-go v0.16.1
 	github.com/google/gnostic-models v0.6.8
 	github.com/google/go-cmp v0.5.9
 	github.com/google/gofuzz v1.2.0
@@ -26,7 +26,7 @@ require (
 	gopkg.in/yaml.v2 v2.4.0
 	k8s.io/api v0.0.0-20230904104028-546e4253e738
 	k8s.io/apimachinery v0.0.0-20230904102823-bc548d1d2406
-	k8s.io/apiserver v0.0.0-20230904114607-bf038b7f385e
+	k8s.io/apiserver v0.0.0-20230906193730-7e09bf350908
 	k8s.io/client-go v0.0.0-20230904110526-745513ad7b37
 	k8s.io/code-generator v0.0.0-20230807201159-791c213a776b
 	k8s.io/component-base v0.0.0-20230904111932-ef6aa9891ad3
@@ -129,7 +129,7 @@ require (
 replace (
 	k8s.io/api => k8s.io/api v0.0.0-20230904104028-546e4253e738
 	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20230904102823-bc548d1d2406
-	k8s.io/apiserver => k8s.io/apiserver v0.0.0-20230904114607-bf038b7f385e
+	k8s.io/apiserver => k8s.io/apiserver v0.0.0-20230906193730-7e09bf350908
 	k8s.io/client-go => k8s.io/client-go v0.0.0-20230904110526-745513ad7b37
 	k8s.io/code-generator => k8s.io/code-generator v0.0.0-20230807201159-791c213a776b
 	k8s.io/component-base => k8s.io/component-base v0.0.0-20230904111932-ef6aa9891ad3

go.sum

@@ -159,8 +159,8 @@ github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Z
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.0.1 h1:gK4Kx5IaGY9CD5sPJ36FHiBJ6ZXl0kilRiiCj+jdYp4=
 github.com/google/btree v1.0.1/go.mod h1:xXMiIv4Fb/0kKde4SpL7qlzvu5cMJDRkFDxJfI9uaxA=
-github.com/google/cel-go v0.16.0 h1:DG9YQ8nFCFXAs/FDDwBxmL1tpKNrdlGUM9U3537bX/Y=
-github.com/google/cel-go v0.16.0/go.mod h1:HXZKzB0LXqer5lHHgfWAnlYwJaQBDKMjxjulNQzhwhY=
+github.com/google/cel-go v0.16.1 h1:3hZfSNiAU3KOiNtxuFXVp5WFy4hf/Ly3Sa4/7F8SXNo=
+github.com/google/cel-go v0.16.1/go.mod h1:HXZKzB0LXqer5lHHgfWAnlYwJaQBDKMjxjulNQzhwhY=
 github.com/google/gnostic-models v0.6.8 h1:yo/ABAfM5IMRsS1VnXjTBvUb61tFIHozhlYvRgGre9I=
 github.com/google/gnostic-models v0.6.8/go.mod h1:5n7qKqH0f5wFt+aWF8CW6pZLLNOfYuF5OpfBSENuI8U=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
@@ -673,8 +673,8 @@ k8s.io/api v0.0.0-20230904104028-546e4253e738 h1:0PmEjeZX6g4bLgztHHEVVj0XrMQ+F8u
 k8s.io/api v0.0.0-20230904104028-546e4253e738/go.mod h1:4GpdFbUbYEFNj6e44T5yz6hE7p8yAn4+dYvmqTPVuOs=
 k8s.io/apimachinery v0.0.0-20230904102823-bc548d1d2406 h1:/YP5PLKVrV5WDzScq2agCBHPP0FCLVrU/4d9+j8uEFs=
 k8s.io/apimachinery v0.0.0-20230904102823-bc548d1d2406/go.mod h1:RdzF87y/ngqk9H4z3EL2Rppv5jj95vGS/HaFXrLDApU=
-k8s.io/apiserver v0.0.0-20230904114607-bf038b7f385e h1:J1HaAqOL9irju2bXc34G3Z2UTXZVnE+GLOfSD1NTwRg=
-k8s.io/apiserver v0.0.0-20230904114607-bf038b7f385e/go.mod h1:CjTNnDKEDMQHdsr2dzFdIFuoZxfXISlPuT7BSOa3YQw=
+k8s.io/apiserver v0.0.0-20230906193730-7e09bf350908 h1:HVeQjJRMlaVBcjY4ujcNXpta+aLDa7QXz5K1y38r43E=
+k8s.io/apiserver v0.0.0-20230906193730-7e09bf350908/go.mod h1:CZwPGvyqJFPbGm/wL283IZM52p6VcGic+gXoOP7wy+4=
 k8s.io/client-go v0.0.0-20230904110526-745513ad7b37 h1:+SF0CtBoQI6Eso+8poN4i55d4oUahClerZwALYSz6Tw=
 k8s.io/client-go v0.0.0-20230904110526-745513ad7b37/go.mod h1:9oac6LWqvfKcphw6P69YH6Ns8xgf4S3ciKrBfqXxq3c=
 k8s.io/code-generator v0.0.0-20230807201159-791c213a776b h1:SQbgU/KO+8dA4z1FG2Miatu7XYb3oDc7tzbycneiyDY=

pkg/apis/apiextensions/validation/validation_test.go

@@ -9315,6 +9315,32 @@ func TestValidateCustomResourceDefinitionValidation(t *testing.T) {
 				forbidden("spec.validation.openAPIV3Schema.properties[f].x-kubernetes-validations[0].messageExpression"),
 			},
 		},
+		{
+			name: "x-kubernetes-validations rule with lowerAscii check should be within estimated cost limit",
+			opts: validationOptions{requireStructuralSchema: true},
+			input: apiextensions.CustomResourceValidation{
+				OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
+					Type: "object",
+					Properties: map[string]apiextensions.JSONSchemaProps{
+						"f": {
+							Type:     "array",
+							MaxItems: pointer.Int64(5),
+							Items: &apiextensions.JSONSchemaPropsOrArray{
+								Schema: &apiextensions.JSONSchemaProps{
+									Type:      "string",
+									MaxLength: pointer.Int64(5),
+								},
+							},
+							XValidations: apiextensions.ValidationRules{
+								{
+									Rule: "self.all(x, self.exists_one(y, x.lowerAscii() == y.lowerAscii()))",
+								},
+							},
+						},
+					},
+				},
+			},
+		},
 		{
 			name: "x-kubernetes-validations rule invalidated by messageExpression exceeding per-CRD estimated cost limit",
 			opts: validationOptions{requireStructuralSchema: true},

pkg/apiserver/schema/cel/celcoststability_test.go

@@ -115,6 +115,7 @@ func TestCelCostStability(t *testing.T) {
 				"self.val1.substring(4, 10).trim() == 'takes'":     6,
 				"self.val1.upperAscii() == 'ROOK TAKES 👑'":         6,
 				"self.val1.lowerAscii() == 'rook takes 👑'":         6,
+				"self.val1.lowerAscii() == self.val1.lowerAscii()": 10,
 			},
 		},
 		{name: "escaped strings",

pkg/apiserver/schema/cel/compilation_test.go

@@ -1683,17 +1683,19 @@ func TestCostEstimation(t *testing.T) {
 			name: "extended library replace",
 			schemaGenerator: func(max *int64) *schema.Structural {
 				strType := withMaxLength(primitiveType("string", ""), max)
+				beforeLen := int64(2)
+				afterLen := int64(4)
 				objType := objectType(map[string]schema.Structural{
 					"str":    strType,
-					"before": strType,
-					"after":  strType,
+					"before": withMaxLength(primitiveType("string", ""), &beforeLen),
+					"after":  withMaxLength(primitiveType("string", ""), &afterLen),
 				})
 				objType = withRule(objType, "self.str.replace(self.before, self.after) == 'does not matter'")
 				return &objType
 			},
-			expectedCalcCost: 629154,
-			setMaxElements:   10,
-			expectedSetCost:  16,
+			expectedCalcCost: 629154, // cost is based on the result size of the replace() call
+			setMaxElements:   4,
+			expectedSetCost:  12,
 		},
 		{
 			name: "extended library split",