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https://github.com/k3s-io/kubernetes.git
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Merge pull request #124061 from Jefftree/conversion-webhook-invalidca
Validate CABundle when writing CRD
This commit is contained in:
Kubernetes Prow Robot
GitHub
commit
04d2f33641
@ -28,7 +28,6 @@ import (
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"unicode/utf8"
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celgo "github.com/google/cel-go/cel"
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"k8s.io/apiextensions-apiserver/pkg/apihelpers"
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"k8s.io/apiextensions-apiserver/pkg/apis/apiextensions"
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apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
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@ -94,6 +93,8 @@ func ValidateCustomResourceDefinition(ctx context.Context, obj *apiextensions.Cu
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requireMapListKeysMapSetValidation: true,
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// strictCost is always true to enforce cost limits.
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celEnvironmentSet: environment.MustBaseEnvSet(environment.DefaultCompatibilityVersion(), true),
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// allowInvalidCABundle is set to true since the CRD is not established yet.
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allowInvalidCABundle: true,
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}
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allErrs := genericvalidation.ValidateObjectMeta(&obj.ObjectMeta, false, nameValidationFn, field.NewPath("metadata"))
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@ -140,6 +141,9 @@ type validationOptions struct {
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suppressPerExpressionCost bool
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celEnvironmentSet *environment.EnvSet
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// allowInvalidCABundle allows an invalid conversion webhook CABundle on update only if the existing CABundle is invalid.
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// An invalid CABundle is also permitted on create and before a CRD is in an Established=True condition.
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allowInvalidCABundle bool
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}
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type preexistingExpressions struct {
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@ -233,7 +237,8 @@ func ValidateCustomResourceDefinitionUpdate(ctx context.Context, obj, oldObj *ap
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preexistingExpressions: findPreexistingExpressions(&oldObj.Spec),
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versionsWithUnchangedSchemas: findVersionsWithUnchangedSchemas(obj, oldObj),
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// strictCost is always true to enforce cost limits.
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celEnvironmentSet: environment.MustBaseEnvSet(environment.DefaultCompatibilityVersion(), true),
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celEnvironmentSet: environment.MustBaseEnvSet(environment.DefaultCompatibilityVersion(), true),
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allowInvalidCABundle: allowInvalidCABundle(oldObj),
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}
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return validateCustomResourceDefinitionUpdate(ctx, obj, oldObj, opts)
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}
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@ -485,7 +490,7 @@ func validateCustomResourceDefinitionSpec(ctx context.Context, spec *apiextensio
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if (spec.Conversion != nil && spec.Conversion.Strategy != apiextensions.NoneConverter) && (spec.PreserveUnknownFields == nil || *spec.PreserveUnknownFields) {
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allErrs = append(allErrs, field.Invalid(fldPath.Child("conversion").Child("strategy"), spec.Conversion.Strategy, "must be None if spec.preserveUnknownFields is true"))
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}
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allErrs = append(allErrs, validateCustomResourceConversion(spec.Conversion, opts.requireRecognizedConversionReviewVersion, fldPath.Child("conversion"))...)
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allErrs = append(allErrs, validateCustomResourceConversion(spec.Conversion, opts.requireRecognizedConversionReviewVersion, fldPath.Child("conversion"), opts)...)
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return allErrs
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}
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@ -545,6 +550,20 @@ func validateConversionReviewVersions(versions []string, requireRecognizedVersio
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return allErrs
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}
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// Allows invalid CA Bundle to be specified only if the existing CABundle is invalid
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// or if the CRD is not established yet.
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func allowInvalidCABundle(oldCRD *apiextensions.CustomResourceDefinition) bool {
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if !apiextensions.IsCRDConditionTrue(oldCRD, apiextensions.Established) {
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return true
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}
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oldConversion := oldCRD.Spec.Conversion
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if oldConversion == nil || oldConversion.WebhookClientConfig == nil ||
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len(oldConversion.WebhookClientConfig.CABundle) == 0 {
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return false
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}
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return len(webhook.ValidateCABundle(field.NewPath("caBundle"), oldConversion.WebhookClientConfig.CABundle)) > 0
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}
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// hasValidConversionReviewVersion return true if there is a valid version or if the list is empty.
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func hasValidConversionReviewVersionOrEmpty(versions []string) bool {
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if len(versions) < 1 {
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@ -558,12 +577,7 @@ func hasValidConversionReviewVersionOrEmpty(versions []string) bool {
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return false
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}
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// ValidateCustomResourceConversion statically validates
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func ValidateCustomResourceConversion(conversion *apiextensions.CustomResourceConversion, fldPath *field.Path) field.ErrorList {
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return validateCustomResourceConversion(conversion, true, fldPath)
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}
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func validateCustomResourceConversion(conversion *apiextensions.CustomResourceConversion, requireRecognizedVersion bool, fldPath *field.Path) field.ErrorList {
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func validateCustomResourceConversion(conversion *apiextensions.CustomResourceConversion, requireRecognizedVersion bool, fldPath *field.Path, opts validationOptions) field.ErrorList {
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allErrs := field.ErrorList{}
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if conversion == nil {
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return allErrs
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@ -582,6 +596,9 @@ func validateCustomResourceConversion(conversion *apiextensions.CustomResourceCo
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case cc.Service != nil:
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allErrs = append(allErrs, webhook.ValidateWebhookService(fldPath.Child("webhookClientConfig").Child("service"), cc.Service.Name, cc.Service.Namespace, cc.Service.Path, cc.Service.Port)...)
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}
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if len(cc.CABundle) > 0 && !opts.allowInvalidCABundle {
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allErrs = append(allErrs, webhook.ValidateCABundle(fldPath.Child("webhookClientConfig").Child("caBundle"), cc.CABundle)...)
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}
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}
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allErrs = append(allErrs, validateConversionReviewVersions(conversion.ConversionReviewVersions, requireRecognizedVersion, fldPath.Child("conversionReviewVersions"))...)
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} else {
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@ -92,6 +92,29 @@ func (v validationMatch) contains(s string) validationMatch {
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func strPtr(s string) *string { return &s }
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// exampleCert was generated from crypto/tls/generate_cert.go with the following command:
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//
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// go run generate_cert.go --rsa-bits 2048 --host example.com --ca --start-date "Jan 1 00:00:00 1970" --duration=1000000h
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var exampleCert = []byte(`-----BEGIN CERTIFICATE-----
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MIIDADCCAeigAwIBAgIQVHG3Fn9SdWayyLOZKCW1vzANBgkqhkiG9w0BAQsFADAS
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MRAwDgYDVQQKEwdBY21lIENvMCAXDTcwMDEwMTAwMDAwMFoYDzIwODQwMTI5MTYw
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MDAwWjASMRAwDgYDVQQKEwdBY21lIENvMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A
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MIIBCgKCAQEArTCu9fiIclNgDdWHphewM+JW55dCb5yYGlJgCBvwbOx547M9p+tn
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zm9QOhsdZDHDZsG9tqnWxE2Nc1HpIJyOlfYsOoonpEoG/Ep6nnK91ngj0bn/JlNy
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+i/bwU4r97MOukvnOIQez9/D9jAJaOX2+b8/d4lRz9BsqiwJyg+ynZ5tVVYj7aMi
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vXnd6HOnJmtqutOtr3beucJnkd6XbwRkLUcAYATT+ZihOWRbTuKqhCg6zGkJOoUG
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f8sX61JjoilxiURA//ftGVbdTCU3DrmGmardp5NNOHbumMYU8Vhmqgx1Bqxb+9he
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7G42uW5YWYK/GqJzgVPjjlB2dOGj9KrEWQIDAQABo1AwTjAOBgNVHQ8BAf8EBAMC
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AqQwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDwYDVR0TAQH/BAUwAwEB/zAWBgNVHREE
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DzANggtleGFtcGxlLmNvbTANBgkqhkiG9w0BAQsFAAOCAQEAig4AIi9xWs1+pLES
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eeGGdSDoclplFpcbXANnsYYFyLf+8pcWgVi2bOmb2gXMbHFkB07MA82wRJAUTaA+
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2iNXVQMhPCoA7J6ADUbww9doJX2S9HGyArhiV/MhHtE8txzMn2EKNLdhhk3N9rmV
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x/qRbWAY1U2z4BpdrAR87Fe81Nlj7h45csW9K+eS+NgXipiNTIfEShKgCFM8EdxL
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1WXg7r9AvYV3TNDPWTjLsm1rQzzZQ7Uvcf6deWiNodZd8MOT/BFLclDPTK6cF2Hr
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UU4dq6G4kCwMSxWE4cM3HlZ4u1dyIt47VbkP0rtvkBCXx36y+NXYA5lzntchNFZP
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uvEQdw==
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-----END CERTIFICATE-----`)
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func TestValidateCustomResourceDefinition(t *testing.T) {
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singleVersionList := []apiextensions.CustomResourceDefinitionVersion{
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{
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@ -235,6 +258,107 @@ func TestValidateCustomResourceDefinition(t *testing.T) {
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invalid("spec", "conversion", "webhookClientConfig", "service", "port"),
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},
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},
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{
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name: "webhookconfig: invalid CABundle should be allowed on Create",
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resource: &apiextensions.CustomResourceDefinition{
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ObjectMeta: metav1.ObjectMeta{Name: "plural.group.com"},
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Spec: apiextensions.CustomResourceDefinitionSpec{
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Group: "group.com",
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Scope: apiextensions.ResourceScope("Cluster"),
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Names: apiextensions.CustomResourceDefinitionNames{
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Plural: "plural",
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Singular: "singular",
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Kind: "Plural",
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ListKind: "PluralList",
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},
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Versions: []apiextensions.CustomResourceDefinitionVersion{
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{
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Name: "version",
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Served: true,
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Storage: true,
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},
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{
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Name: "version2",
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Served: true,
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Storage: false,
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},
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},
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Conversion: &apiextensions.CustomResourceConversion{
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Strategy: apiextensions.ConversionStrategyType("Webhook"),
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WebhookClientConfig: &apiextensions.WebhookClientConfig{
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Service: &apiextensions.ServiceReference{
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Name: "n",
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Namespace: "ns",
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Port: 443,
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},
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CABundle: []byte("Cg=="),
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},
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},
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Validation: &apiextensions.CustomResourceValidation{
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OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
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Type: "object",
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},
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},
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PreserveUnknownFields: ptr.To(false),
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},
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Status: apiextensions.CustomResourceDefinitionStatus{
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StoredVersions: []string{"version"},
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},
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},
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errors: []validationMatch{},
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},
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{
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name: "webhookconfig: valid CABundle",
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resource: &apiextensions.CustomResourceDefinition{
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ObjectMeta: metav1.ObjectMeta{Name: "plural.group.com"},
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Spec: apiextensions.CustomResourceDefinitionSpec{
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Group: "group.com",
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Scope: apiextensions.ResourceScope("Cluster"),
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Names: apiextensions.CustomResourceDefinitionNames{
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Plural: "plural",
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Singular: "singular",
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Kind: "Plural",
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ListKind: "PluralList",
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},
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Versions: []apiextensions.CustomResourceDefinitionVersion{
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{
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Name: "version",
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Served: true,
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Storage: true,
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},
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{
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Name: "version2",
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Served: true,
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Storage: false,
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},
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},
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Conversion: &apiextensions.CustomResourceConversion{
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Strategy: apiextensions.ConversionStrategyType("Webhook"),
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WebhookClientConfig: &apiextensions.WebhookClientConfig{
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Service: &apiextensions.ServiceReference{
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Name: "n",
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Namespace: "ns",
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Port: 443,
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},
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CABundle: exampleCert,
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},
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},
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Validation: &apiextensions.CustomResourceValidation{
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OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
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Type: "object",
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},
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},
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PreserveUnknownFields: ptr.To(false),
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},
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Status: apiextensions.CustomResourceDefinitionStatus{
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StoredVersions: []string{"version"},
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Conditions: []apiextensions.CustomResourceDefinitionCondition{
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{Type: apiextensions.Established, Status: apiextensions.ConditionTrue},
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},
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},
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},
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errors: []validationMatch{},
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},
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{
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name: "webhookconfig: both service and URL provided",
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resource: &apiextensions.CustomResourceDefinition{
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@ -5543,6 +5667,362 @@ func TestValidateCustomResourceDefinitionUpdate(t *testing.T) {
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invalid("spec", "conversion", "conversionReviewVersions"),
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},
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},
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{
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name: "webhookconfig: existing invalid CABundle update should pass",
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old: &apiextensions.CustomResourceDefinition{
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ObjectMeta: metav1.ObjectMeta{
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Name: "plural.group.com",
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ResourceVersion: "42",
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},
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Spec: apiextensions.CustomResourceDefinitionSpec{
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Group: "group.com",
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Version: "version",
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Versions: []apiextensions.CustomResourceDefinitionVersion{
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{
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Name: "version",
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Served: true,
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Storage: true,
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},
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{
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Name: "version2",
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Served: true,
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Storage: false,
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},
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},
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Conversion: &apiextensions.CustomResourceConversion{
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Strategy: apiextensions.ConversionStrategyType("Webhook"),
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WebhookClientConfig: &apiextensions.WebhookClientConfig{
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Service: &apiextensions.ServiceReference{
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Name: "n",
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Namespace: "ns",
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Port: 443,
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},
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CABundle: []byte("Cg=="),
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},
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ConversionReviewVersions: []string{"version2"},
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},
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Validation: &apiextensions.CustomResourceValidation{
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OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
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Type: "object",
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},
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},
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Scope: apiextensions.ResourceScope("Cluster"),
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Names: apiextensions.CustomResourceDefinitionNames{
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Plural: "plural",
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Singular: "singular",
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Kind: "kind",
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ListKind: "listkind",
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},
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},
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Status: apiextensions.CustomResourceDefinitionStatus{
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AcceptedNames: apiextensions.CustomResourceDefinitionNames{
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Plural: "plural",
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Singular: "singular",
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Kind: "kind",
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ListKind: "listkind",
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},
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Conditions: []apiextensions.CustomResourceDefinitionCondition{
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{Type: apiextensions.Established, Status: apiextensions.ConditionTrue},
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},
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},
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},
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resource: &apiextensions.CustomResourceDefinition{
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ObjectMeta: metav1.ObjectMeta{
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Name: "plural.group.com",
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ResourceVersion: "42",
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},
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Spec: apiextensions.CustomResourceDefinitionSpec{
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Group: "group.com",
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Version: "version",
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Versions: []apiextensions.CustomResourceDefinitionVersion{
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{
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Name: "version",
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Served: true,
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Storage: true,
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},
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{
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Name: "version2",
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Served: true,
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Storage: false,
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},
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},
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Conversion: &apiextensions.CustomResourceConversion{
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Strategy: apiextensions.ConversionStrategyType("Webhook"),
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WebhookClientConfig: &apiextensions.WebhookClientConfig{
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Service: &apiextensions.ServiceReference{
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Name: "n",
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Namespace: "ns",
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Port: 443,
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},
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CABundle: []byte("Cg=="),
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},
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ConversionReviewVersions: []string{"version2"},
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},
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Validation: &apiextensions.CustomResourceValidation{
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OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
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Type: "object",
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},
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},
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Scope: apiextensions.ResourceScope("Cluster"),
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Names: apiextensions.CustomResourceDefinitionNames{
|
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Plural: "plural",
|
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Singular: "singular",
|
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Kind: "kind",
|
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ListKind: "listkind",
|
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},
|
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PreserveUnknownFields: ptr.To(false),
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},
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Status: apiextensions.CustomResourceDefinitionStatus{
|
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AcceptedNames: apiextensions.CustomResourceDefinitionNames{
|
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Plural: "plural",
|
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Singular: "singular",
|
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Kind: "kind",
|
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ListKind: "listkind",
|
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},
|
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Conditions: []apiextensions.CustomResourceDefinitionCondition{
|
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{Type: apiextensions.Established, Status: apiextensions.ConditionTrue},
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},
|
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StoredVersions: []string{"version"},
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},
|
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},
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errors: []validationMatch{},
|
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},
|
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{
|
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name: "webhookconfig: existing valid CABundle should be able to transition to invalid pre-serving",
|
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old: &apiextensions.CustomResourceDefinition{
|
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ObjectMeta: metav1.ObjectMeta{
|
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Name: "plural.group.com",
|
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ResourceVersion: "42",
|
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},
|
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Spec: apiextensions.CustomResourceDefinitionSpec{
|
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Group: "group.com",
|
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Version: "version",
|
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Versions: []apiextensions.CustomResourceDefinitionVersion{
|
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{
|
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Name: "version",
|
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Served: true,
|
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Storage: true,
|
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},
|
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{
|
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Name: "version2",
|
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Served: true,
|
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Storage: false,
|
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},
|
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},
|
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Conversion: &apiextensions.CustomResourceConversion{
|
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Strategy: apiextensions.ConversionStrategyType("Webhook"),
|
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WebhookClientConfig: &apiextensions.WebhookClientConfig{
|
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Service: &apiextensions.ServiceReference{
|
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Name: "n",
|
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Namespace: "ns",
|
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Port: 443,
|
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},
|
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CABundle: exampleCert,
|
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},
|
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ConversionReviewVersions: []string{"version2"},
|
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},
|
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Validation: &apiextensions.CustomResourceValidation{
|
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OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
|
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Type: "object",
|
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},
|
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},
|
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Scope: apiextensions.ResourceScope("Cluster"),
|
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Names: apiextensions.CustomResourceDefinitionNames{
|
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Plural: "plural",
|
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Singular: "singular",
|
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Kind: "kind",
|
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ListKind: "listkind",
|
||||
},
|
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},
|
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Status: apiextensions.CustomResourceDefinitionStatus{
|
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AcceptedNames: apiextensions.CustomResourceDefinitionNames{
|
||||
Plural: "plural",
|
||||
Singular: "singular",
|
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Kind: "kind",
|
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ListKind: "listkind",
|
||||
},
|
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},
|
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},
|
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resource: &apiextensions.CustomResourceDefinition{
|
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ObjectMeta: metav1.ObjectMeta{
|
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Name: "plural.group.com",
|
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ResourceVersion: "42",
|
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},
|
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Spec: apiextensions.CustomResourceDefinitionSpec{
|
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Group: "group.com",
|
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Version: "version",
|
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Versions: []apiextensions.CustomResourceDefinitionVersion{
|
||||
{
|
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Name: "version",
|
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Served: true,
|
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Storage: true,
|
||||
},
|
||||
{
|
||||
Name: "version2",
|
||||
Served: true,
|
||||
Storage: false,
|
||||
},
|
||||
},
|
||||
Conversion: &apiextensions.CustomResourceConversion{
|
||||
Strategy: apiextensions.ConversionStrategyType("Webhook"),
|
||||
WebhookClientConfig: &apiextensions.WebhookClientConfig{
|
||||
Service: &apiextensions.ServiceReference{
|
||||
Name: "n",
|
||||
Namespace: "ns",
|
||||
Port: 443,
|
||||
},
|
||||
CABundle: []byte("Cg=="),
|
||||
},
|
||||
ConversionReviewVersions: []string{"version2"},
|
||||
},
|
||||
Validation: &apiextensions.CustomResourceValidation{
|
||||
OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
|
||||
Type: "object",
|
||||
},
|
||||
},
|
||||
Scope: apiextensions.ResourceScope("Cluster"),
|
||||
Names: apiextensions.CustomResourceDefinitionNames{
|
||||
Plural: "plural",
|
||||
Singular: "singular",
|
||||
Kind: "kind",
|
||||
ListKind: "listkind",
|
||||
},
|
||||
PreserveUnknownFields: ptr.To(false),
|
||||
},
|
||||
Status: apiextensions.CustomResourceDefinitionStatus{
|
||||
AcceptedNames: apiextensions.CustomResourceDefinitionNames{
|
||||
Plural: "plural",
|
||||
Singular: "singular",
|
||||
Kind: "kind",
|
||||
ListKind: "listkind",
|
||||
},
|
||||
StoredVersions: []string{"version"},
|
||||
},
|
||||
},
|
||||
errors: []validationMatch{},
|
||||
},
|
||||
{
|
||||
name: "webhookconfig: update to invalid CABundle should fail if existing is valid",
|
||||
old: &apiextensions.CustomResourceDefinition{
|
||||
ObjectMeta: metav1.ObjectMeta{
|
||||
Name: "plural.group.com",
|
||||
ResourceVersion: "42",
|
||||
},
|
||||
Spec: apiextensions.CustomResourceDefinitionSpec{
|
||||
Group: "group.com",
|
||||
Version: "version",
|
||||
Versions: []apiextensions.CustomResourceDefinitionVersion{
|
||||
{
|
||||
Name: "version",
|
||||
Served: true,
|
||||
Storage: true,
|
||||
},
|
||||
{
|
||||
Name: "version2",
|
||||
Served: true,
|
||||
Storage: false,
|
||||
},
|
||||
},
|
||||
Conversion: &apiextensions.CustomResourceConversion{
|
||||
Strategy: apiextensions.ConversionStrategyType("Webhook"),
|
||||
WebhookClientConfig: &apiextensions.WebhookClientConfig{
|
||||
Service: &apiextensions.ServiceReference{
|
||||
Name: "n",
|
||||
Namespace: "ns",
|
||||
Port: 443,
|
||||
},
|
||||
CABundle: exampleCert,
|
||||
},
|
||||
ConversionReviewVersions: []string{"version2"},
|
||||
},
|
||||
Validation: &apiextensions.CustomResourceValidation{
|
||||
OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
|
||||
Type: "object",
|
||||
},
|
||||
},
|
||||
Scope: apiextensions.ResourceScope("Cluster"),
|
||||
Names: apiextensions.CustomResourceDefinitionNames{
|
||||
Plural: "plural",
|
||||
Singular: "singular",
|
||||
Kind: "kind",
|
||||
ListKind: "listkind",
|
||||
},
|
||||
},
|
||||
Status: apiextensions.CustomResourceDefinitionStatus{
|
||||
AcceptedNames: apiextensions.CustomResourceDefinitionNames{
|
||||
Plural: "plural",
|
||||
Singular: "singular",
|
||||
Kind: "kind",
|
||||
ListKind: "listkind",
|
||||
},
|
||||
Conditions: []apiextensions.CustomResourceDefinitionCondition{
|
||||
{Type: apiextensions.Established, Status: apiextensions.ConditionTrue},
|
||||
},
|
||||
},
|
||||
},
|
||||
resource: &apiextensions.CustomResourceDefinition{
|
||||
ObjectMeta: metav1.ObjectMeta{
|
||||
Name: "plural.group.com",
|
||||
ResourceVersion: "42",
|
||||
},
|
||||
Spec: apiextensions.CustomResourceDefinitionSpec{
|
||||
Group: "group.com",
|
||||
Version: "version",
|
||||
Versions: []apiextensions.CustomResourceDefinitionVersion{
|
||||
{
|
||||
Name: "version",
|
||||
Served: true,
|
||||
Storage: true,
|
||||
},
|
||||
{
|
||||
Name: "version2",
|
||||
Served: true,
|
||||
Storage: false,
|
||||
},
|
||||
},
|
||||
Conversion: &apiextensions.CustomResourceConversion{
|
||||
Strategy: apiextensions.ConversionStrategyType("Webhook"),
|
||||
WebhookClientConfig: &apiextensions.WebhookClientConfig{
|
||||
Service: &apiextensions.ServiceReference{
|
||||
Name: "n",
|
||||
Namespace: "ns",
|
||||
Port: 443,
|
||||
},
|
||||
CABundle: []byte("Cg=="),
|
||||
},
|
||||
ConversionReviewVersions: []string{"version2"},
|
||||
},
|
||||
Validation: &apiextensions.CustomResourceValidation{
|
||||
OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
|
||||
Type: "object",
|
||||
},
|
||||
},
|
||||
Scope: apiextensions.ResourceScope("Cluster"),
|
||||
Names: apiextensions.CustomResourceDefinitionNames{
|
||||
Plural: "plural",
|
||||
Singular: "singular",
|
||||
Kind: "kind",
|
||||
ListKind: "listkind",
|
||||
},
|
||||
PreserveUnknownFields: ptr.To(false),
|
||||
},
|
||||
Status: apiextensions.CustomResourceDefinitionStatus{
|
||||
AcceptedNames: apiextensions.CustomResourceDefinitionNames{
|
||||
Plural: "plural",
|
||||
Singular: "singular",
|
||||
Kind: "kind",
|
||||
ListKind: "listkind",
|
||||
},
|
||||
Conditions: []apiextensions.CustomResourceDefinitionCondition{
|
||||
{Type: apiextensions.Established, Status: apiextensions.ConditionTrue},
|
||||
},
|
||||
StoredVersions: []string{"version"},
|
||||
},
|
||||
},
|
||||
errors: []validationMatch{
|
||||
invalid("spec", "conversion", "webhookClientConfig", "caBundle"),
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "unchanged",
|
||||
old: &apiextensions.CustomResourceDefinition{
|
||||
|
||||
@ -24,7 +24,9 @@ import (
|
||||
apierrors "k8s.io/apimachinery/pkg/api/errors"
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
|
||||
"k8s.io/apimachinery/pkg/util/validation/field"
|
||||
"k8s.io/apimachinery/pkg/util/wait"
|
||||
"k8s.io/apiserver/pkg/util/webhook"
|
||||
"k8s.io/client-go/tools/cache"
|
||||
"k8s.io/client-go/util/workqueue"
|
||||
"k8s.io/klog/v2"
|
||||
@ -131,13 +133,29 @@ func (ec *EstablishingController) sync(key string) error {
|
||||
}
|
||||
|
||||
crd := cachedCRD.DeepCopy()
|
||||
establishedCondition := apiextensionsv1.CustomResourceDefinitionCondition{
|
||||
Type: apiextensionsv1.Established,
|
||||
Status: apiextensionsv1.ConditionTrue,
|
||||
Reason: "InitialNamesAccepted",
|
||||
Message: "the initial names have been accepted",
|
||||
|
||||
// If the conversion webhook CABundle is invalid, set Established
|
||||
// condition to false and provide a reason
|
||||
if cachedCRD.Spec.Conversion != nil &&
|
||||
cachedCRD.Spec.Conversion.Webhook != nil &&
|
||||
cachedCRD.Spec.Conversion.Webhook.ClientConfig != nil &&
|
||||
len(webhook.ValidateCABundle(field.NewPath(""), cachedCRD.Spec.Conversion.Webhook.ClientConfig.CABundle)) > 0 {
|
||||
errorCondition := apiextensionsv1.CustomResourceDefinitionCondition{
|
||||
Type: apiextensionsv1.Established,
|
||||
Status: apiextensionsv1.ConditionFalse,
|
||||
Reason: "InvalidCABundle",
|
||||
Message: "The conversion webhook CABundle is invalid",
|
||||
}
|
||||
apiextensionshelpers.SetCRDCondition(crd, errorCondition)
|
||||
} else {
|
||||
establishedCondition := apiextensionsv1.CustomResourceDefinitionCondition{
|
||||
Type: apiextensionsv1.Established,
|
||||
Status: apiextensionsv1.ConditionTrue,
|
||||
Reason: "InitialNamesAccepted",
|
||||
Message: "the initial names have been accepted",
|
||||
}
|
||||
apiextensionshelpers.SetCRDCondition(crd, establishedCondition)
|
||||
}
|
||||
apiextensionshelpers.SetCRDCondition(crd, establishedCondition)
|
||||
|
||||
// Update server with new CRD condition.
|
||||
_, err = ec.crdClient.CustomResourceDefinitions().UpdateStatus(context.TODO(), crd, metav1.UpdateOptions{})
|
||||
|
||||
@ -0,0 +1,183 @@
|
||||
/*
|
||||
Copyright 2024 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 integration
|
||||
|
||||
import (
|
||||
"context"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
"k8s.io/apimachinery/pkg/util/wait"
|
||||
|
||||
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
|
||||
"k8s.io/apiextensions-apiserver/test/integration/fixtures"
|
||||
)
|
||||
|
||||
// exampleCert was generated from crypto/tls/generate_cert.go with the following command:
|
||||
//
|
||||
// go run generate_cert.go --rsa-bits 2048 --host example.com --ca --start-date "Jan 1 00:00:00 1970" --duration=1000000h
|
||||
var exampleCert = []byte(`-----BEGIN CERTIFICATE-----
|
||||
MIIDADCCAeigAwIBAgIQVHG3Fn9SdWayyLOZKCW1vzANBgkqhkiG9w0BAQsFADAS
|
||||
MRAwDgYDVQQKEwdBY21lIENvMCAXDTcwMDEwMTAwMDAwMFoYDzIwODQwMTI5MTYw
|
||||
MDAwWjASMRAwDgYDVQQKEwdBY21lIENvMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A
|
||||
MIIBCgKCAQEArTCu9fiIclNgDdWHphewM+JW55dCb5yYGlJgCBvwbOx547M9p+tn
|
||||
zm9QOhsdZDHDZsG9tqnWxE2Nc1HpIJyOlfYsOoonpEoG/Ep6nnK91ngj0bn/JlNy
|
||||
+i/bwU4r97MOukvnOIQez9/D9jAJaOX2+b8/d4lRz9BsqiwJyg+ynZ5tVVYj7aMi
|
||||
vXnd6HOnJmtqutOtr3beucJnkd6XbwRkLUcAYATT+ZihOWRbTuKqhCg6zGkJOoUG
|
||||
f8sX61JjoilxiURA//ftGVbdTCU3DrmGmardp5NNOHbumMYU8Vhmqgx1Bqxb+9he
|
||||
7G42uW5YWYK/GqJzgVPjjlB2dOGj9KrEWQIDAQABo1AwTjAOBgNVHQ8BAf8EBAMC
|
||||
AqQwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDwYDVR0TAQH/BAUwAwEB/zAWBgNVHREE
|
||||
DzANggtleGFtcGxlLmNvbTANBgkqhkiG9w0BAQsFAAOCAQEAig4AIi9xWs1+pLES
|
||||
eeGGdSDoclplFpcbXANnsYYFyLf+8pcWgVi2bOmb2gXMbHFkB07MA82wRJAUTaA+
|
||||
2iNXVQMhPCoA7J6ADUbww9doJX2S9HGyArhiV/MhHtE8txzMn2EKNLdhhk3N9rmV
|
||||
x/qRbWAY1U2z4BpdrAR87Fe81Nlj7h45csW9K+eS+NgXipiNTIfEShKgCFM8EdxL
|
||||
1WXg7r9AvYV3TNDPWTjLsm1rQzzZQ7Uvcf6deWiNodZd8MOT/BFLclDPTK6cF2Hr
|
||||
UU4dq6G4kCwMSxWE4cM3HlZ4u1dyIt47VbkP0rtvkBCXx36y+NXYA5lzntchNFZP
|
||||
uvEQdw==
|
||||
-----END CERTIFICATE-----`)
|
||||
|
||||
var invalidCert = []byte("Cg==")
|
||||
|
||||
// Invalid CABundle should prevent new CRD from being set to Established
|
||||
func TestInvalidCABundle(t *testing.T) {
|
||||
ctx := context.Background()
|
||||
tearDown, apiExtensionClient, _, err := fixtures.StartDefaultServerWithClients(t)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
defer tearDown()
|
||||
|
||||
crd := fixtures.NewRandomNameV1CustomResourceDefinition(apiextensionsv1.NamespaceScoped)
|
||||
crd.Spec.Conversion = &apiextensionsv1.CustomResourceConversion{
|
||||
Strategy: apiextensionsv1.WebhookConverter,
|
||||
Webhook: &apiextensionsv1.WebhookConversion{
|
||||
ClientConfig: &apiextensionsv1.WebhookClientConfig{
|
||||
CABundle: invalidCert,
|
||||
Service: &apiextensionsv1.ServiceReference{
|
||||
Namespace: "default",
|
||||
Name: "example",
|
||||
},
|
||||
},
|
||||
ConversionReviewVersions: []string{"v1beta1"},
|
||||
},
|
||||
}
|
||||
crd, err = apiExtensionClient.ApiextensionsV1().CustomResourceDefinitions().Create(ctx, crd, metav1.CreateOptions{})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
// Ensure that Established is false with reason InvalidCABundle
|
||||
err = wait.PollUntilContextTimeout(ctx, 100*time.Millisecond, 10*time.Second, true, func(ctx context.Context) (bool, error) {
|
||||
localCrd, err := apiExtensionClient.ApiextensionsV1().CustomResourceDefinitions().Get(ctx, crd.Name, metav1.GetOptions{})
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
condition := findCRDCondition(localCrd, apiextensionsv1.Established)
|
||||
if condition == nil {
|
||||
return false, nil
|
||||
}
|
||||
if condition.Status == apiextensionsv1.ConditionFalse && condition.Reason == "InvalidCABundle" {
|
||||
return true, nil
|
||||
}
|
||||
return false, nil
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
||||
// Valid CABundle should set CRD to Established.
|
||||
func TestValidCABundle(t *testing.T) {
|
||||
ctx := context.Background()
|
||||
tearDown, apiExtensionClient, _, err := fixtures.StartDefaultServerWithClients(t)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
defer tearDown()
|
||||
|
||||
crd := fixtures.NewRandomNameV1CustomResourceDefinition(apiextensionsv1.NamespaceScoped)
|
||||
crd.Spec.Conversion = &apiextensionsv1.CustomResourceConversion{
|
||||
Strategy: apiextensionsv1.WebhookConverter,
|
||||
Webhook: &apiextensionsv1.WebhookConversion{
|
||||
ClientConfig: &apiextensionsv1.WebhookClientConfig{
|
||||
CABundle: exampleCert,
|
||||
Service: &apiextensionsv1.ServiceReference{
|
||||
Namespace: "default",
|
||||
Name: "example",
|
||||
},
|
||||
},
|
||||
ConversionReviewVersions: []string{"v1beta1"},
|
||||
},
|
||||
}
|
||||
|
||||
crd, err = apiExtensionClient.ApiextensionsV1().CustomResourceDefinitions().Create(ctx, crd, metav1.CreateOptions{})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
// wait until the CRD is established
|
||||
err = wait.PollUntilContextTimeout(ctx, 100*time.Millisecond, 10*time.Second, true, func(ctx context.Context) (bool, error) {
|
||||
localCrd, err := apiExtensionClient.ApiextensionsV1().CustomResourceDefinitions().Get(ctx, crd.Name, metav1.GetOptions{})
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
condition := findCRDCondition(localCrd, apiextensionsv1.Established)
|
||||
if condition == nil {
|
||||
return false, nil
|
||||
}
|
||||
if condition.Status == apiextensionsv1.ConditionTrue {
|
||||
return true, nil
|
||||
}
|
||||
return false, nil
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// No CABundle should set CRD to Established.
|
||||
func TestMissingCABundle(t *testing.T) {
|
||||
ctx := context.Background()
|
||||
tearDown, apiExtensionClient, _, err := fixtures.StartDefaultServerWithClients(t)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
defer tearDown()
|
||||
|
||||
crd := fixtures.NewRandomNameV1CustomResourceDefinition(apiextensionsv1.NamespaceScoped)
|
||||
crd, err = apiExtensionClient.ApiextensionsV1().CustomResourceDefinitions().Create(ctx, crd, metav1.CreateOptions{})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
err = wait.PollUntilContextTimeout(ctx, 100*time.Millisecond, 10*time.Second, true, func(ctx context.Context) (bool, error) {
|
||||
localCrd, err := apiExtensionClient.ApiextensionsV1().CustomResourceDefinitions().Get(ctx, crd.Name, metav1.GetOptions{})
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
condition := findCRDCondition(localCrd, apiextensionsv1.Established)
|
||||
if condition == nil {
|
||||
return false, nil
|
||||
}
|
||||
if condition.Status == apiextensionsv1.ConditionTrue {
|
||||
return true, nil
|
||||
}
|
||||
return false, nil
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
}
|
||||
@ -23,8 +23,18 @@ import (
|
||||
|
||||
"k8s.io/apimachinery/pkg/util/validation"
|
||||
"k8s.io/apimachinery/pkg/util/validation/field"
|
||||
"k8s.io/client-go/transport"
|
||||
)
|
||||
|
||||
func ValidateCABundle(fldPath *field.Path, caBundle []byte) field.ErrorList {
|
||||
var allErrors field.ErrorList
|
||||
_, err := transport.TLSConfigFor(&transport.Config{TLS: transport.TLSConfig{CAData: caBundle}})
|
||||
if err != nil {
|
||||
allErrors = append(allErrors, field.Invalid(fldPath, caBundle, err.Error()))
|
||||
}
|
||||
return allErrors
|
||||
}
|
||||
|
||||
// ValidateWebhookURL validates webhook's URL.
|
||||
func ValidateWebhookURL(fldPath *field.Path, URL string, forceHttps bool) field.ErrorList {
|
||||
var allErrors field.ErrorList
|
||||
|
||||
@ -0,0 +1,85 @@
|
||||
/*
|
||||
Copyright 2024 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 webhook
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"k8s.io/apimachinery/pkg/util/validation/field"
|
||||
)
|
||||
|
||||
// exampleCert was generated from crypto/tls/generate_cert.go with the following command:
|
||||
//
|
||||
// go run generate_cert.go --rsa-bits 2048 --host example.com --ca --start-date "Jan 1 00:00:00 1970" --duration=1000000h
|
||||
var exampleCert = []byte(`-----BEGIN CERTIFICATE-----
|
||||
MIIDADCCAeigAwIBAgIQVHG3Fn9SdWayyLOZKCW1vzANBgkqhkiG9w0BAQsFADAS
|
||||
MRAwDgYDVQQKEwdBY21lIENvMCAXDTcwMDEwMTAwMDAwMFoYDzIwODQwMTI5MTYw
|
||||
MDAwWjASMRAwDgYDVQQKEwdBY21lIENvMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A
|
||||
MIIBCgKCAQEArTCu9fiIclNgDdWHphewM+JW55dCb5yYGlJgCBvwbOx547M9p+tn
|
||||
zm9QOhsdZDHDZsG9tqnWxE2Nc1HpIJyOlfYsOoonpEoG/Ep6nnK91ngj0bn/JlNy
|
||||
+i/bwU4r97MOukvnOIQez9/D9jAJaOX2+b8/d4lRz9BsqiwJyg+ynZ5tVVYj7aMi
|
||||
vXnd6HOnJmtqutOtr3beucJnkd6XbwRkLUcAYATT+ZihOWRbTuKqhCg6zGkJOoUG
|
||||
f8sX61JjoilxiURA//ftGVbdTCU3DrmGmardp5NNOHbumMYU8Vhmqgx1Bqxb+9he
|
||||
7G42uW5YWYK/GqJzgVPjjlB2dOGj9KrEWQIDAQABo1AwTjAOBgNVHQ8BAf8EBAMC
|
||||
AqQwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDwYDVR0TAQH/BAUwAwEB/zAWBgNVHREE
|
||||
DzANggtleGFtcGxlLmNvbTANBgkqhkiG9w0BAQsFAAOCAQEAig4AIi9xWs1+pLES
|
||||
eeGGdSDoclplFpcbXANnsYYFyLf+8pcWgVi2bOmb2gXMbHFkB07MA82wRJAUTaA+
|
||||
2iNXVQMhPCoA7J6ADUbww9doJX2S9HGyArhiV/MhHtE8txzMn2EKNLdhhk3N9rmV
|
||||
x/qRbWAY1U2z4BpdrAR87Fe81Nlj7h45csW9K+eS+NgXipiNTIfEShKgCFM8EdxL
|
||||
1WXg7r9AvYV3TNDPWTjLsm1rQzzZQ7Uvcf6deWiNodZd8MOT/BFLclDPTK6cF2Hr
|
||||
UU4dq6G4kCwMSxWE4cM3HlZ4u1dyIt47VbkP0rtvkBCXx36y+NXYA5lzntchNFZP
|
||||
uvEQdw==
|
||||
-----END CERTIFICATE-----`)
|
||||
|
||||
func TestValidateCABundle(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
caBundle []byte
|
||||
expectErr bool
|
||||
}{
|
||||
{
|
||||
name: "nil caBundle is valid",
|
||||
caBundle: nil,
|
||||
expectErr: false,
|
||||
}, {
|
||||
name: "empty caBundle is valid",
|
||||
caBundle: []byte(""),
|
||||
expectErr: false,
|
||||
}, {
|
||||
name: "non empty caBundle with invalid certificate should not validate",
|
||||
caBundle: []byte("bogus"),
|
||||
expectErr: true,
|
||||
}, {
|
||||
name: "non empty caBundle with no certificate should not validate",
|
||||
caBundle: []byte("Cg=="),
|
||||
expectErr: true,
|
||||
}, {
|
||||
name: "non empty caBundle with valid certificate should validate",
|
||||
caBundle: exampleCert,
|
||||
expectErr: false,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range tests {
|
||||
errList := ValidateCABundle(field.NewPath(""), tc.caBundle)
|
||||
if len(errList) > 0 && !tc.expectErr {
|
||||
t.Errorf("Expected no error for test %s, got %v", tc.name, errList)
|
||||
} else if len(errList) == 0 && tc.expectErr {
|
||||
t.Errorf("Expected error for test %s, received no error", tc.name)
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user