add apiregistration types

cmd/kubernetes-discovery/pkg/apis/apiregistration/validation/validation.go

@@ -0,0 +1,85 @@
+/*
+Copyright 2016 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 validation
+
+import (
+	"fmt"
+
+	"k8s.io/kubernetes/pkg/api/validation"
+	"k8s.io/kubernetes/pkg/api/validation/path"
+	utilvalidation "k8s.io/kubernetes/pkg/util/validation"
+	"k8s.io/kubernetes/pkg/util/validation/field"
+
+	discoveryapi "k8s.io/kubernetes/cmd/kubernetes-discovery/pkg/apis/apiregistration"
+)
+
+func ValidateAPIService(apiServer *discoveryapi.APIService) field.ErrorList {
+	requiredName := apiServer.Spec.Version + "." + apiServer.Spec.Group
+
+	allErrs := validation.ValidateObjectMeta(&apiServer.ObjectMeta, false,
+		func(name string, prefix bool) []string {
+			if minimalFailures := path.IsValidPathSegmentName(name); len(minimalFailures) > 0 {
+				return minimalFailures
+			}
+			// the name *must* be version.group
+			if name != requiredName {
+				return []string{fmt.Sprintf("must be `spec.version+\".\"+spec.group`: %q", requiredName)}
+			}
+
+			return []string{}
+		},
+		field.NewPath("metadata"))
+
+	// in this case we allow empty group
+	if len(apiServer.Spec.Group) == 0 && apiServer.Spec.Version != "v1" {
+		allErrs = append(allErrs, field.Required(field.NewPath("spec", "group"), "only v1 may have an empty group and it better be legacy kube"))
+	}
+	if len(apiServer.Spec.Group) > 0 {
+		for _, errString := range utilvalidation.IsDNS1123Subdomain(apiServer.Spec.Group) {
+			allErrs = append(allErrs, field.Invalid(field.NewPath("spec", "group"), apiServer.Spec.Group, errString))
+		}
+	}
+
+	for _, errString := range utilvalidation.IsDNS1035Label(apiServer.Spec.Version) {
+		allErrs = append(allErrs, field.Invalid(field.NewPath("spec", "version"), apiServer.Spec.Version, errString))
+	}
+
+	if apiServer.Spec.Priority <= 0 || apiServer.Spec.Priority > 1000 {
+		allErrs = append(allErrs, field.Invalid(field.NewPath("spec", "priority"), apiServer.Spec.Priority, "priority must be positive and less than 1000"))
+
+	}
+
+	if len(apiServer.Spec.Service.Namespace) == 0 {
+		allErrs = append(allErrs, field.Required(field.NewPath("spec", "service", "namespace"), ""))
+	}
+	if len(apiServer.Spec.Service.Name) == 0 {
+		allErrs = append(allErrs, field.Required(field.NewPath("spec", "service", "name"), ""))
+	}
+
+	if apiServer.Spec.InsecureSkipTLSVerify && len(apiServer.Spec.CABundle) > 0 {
+		allErrs = append(allErrs, field.Invalid(field.NewPath("spec", "insecureSkipTLSVerify"), apiServer.Spec.InsecureSkipTLSVerify, "may not be true if caBundle is present"))
+	}
+
+	return allErrs
+}
+
+func ValidateAPIServiceUpdate(newAPIService *discoveryapi.APIService, oldAPIService *discoveryapi.APIService) field.ErrorList {
+	allErrs := validation.ValidateObjectMetaUpdate(&newAPIService.ObjectMeta, &oldAPIService.ObjectMeta, field.NewPath("metadata"))
+	allErrs = append(allErrs, ValidateAPIService(newAPIService)...)
+
+	return allErrs
+}