111 lines
5.0 KiB
Go
111 lines
5.0 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package validation
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import (
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/unversioned"
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unversionedvalidation "k8s.io/kubernetes/pkg/api/unversioned/validation"
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apivalidation "k8s.io/kubernetes/pkg/api/validation"
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"k8s.io/kubernetes/pkg/apis/apps"
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"k8s.io/kubernetes/pkg/labels"
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"k8s.io/kubernetes/pkg/util/validation/field"
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)
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// ValidatePetSetName can be used to check whether the given PetSet
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// name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidatePetSetName(name string, prefix bool) (bool, string) {
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return apivalidation.NameIsDNSSubdomain(name, prefix)
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}
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// Validates the given template and ensures that it is in accordance with the desired selector.
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func ValidatePodTemplateSpecForPetSet(template *api.PodTemplateSpec, selector labels.Selector, fldPath *field.Path) field.ErrorList {
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allErrs := field.ErrorList{}
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if template == nil {
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allErrs = append(allErrs, field.Required(fldPath, ""))
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} else {
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if !selector.Empty() {
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// Verify that the PetSet selector matches the labels in template.
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labels := labels.Set(template.Labels)
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if !selector.Matches(labels) {
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allErrs = append(allErrs, field.Invalid(fldPath.Child("metadata", "labels"), template.Labels, "`selector` does not match template `labels`"))
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}
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}
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// TODO: Add validation for PodSpec, currently this will check volumes, which we know will
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// fail. We should really check that the union of the given volumes and volumeClaims match
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// volume mounts in the containers.
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// allErrs = append(allErrs, apivalidation.ValidatePodTemplateSpec(template, fldPath)...)
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allErrs = append(allErrs, apivalidation.ValidateLabels(template.Labels, fldPath.Child("labels"))...)
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allErrs = append(allErrs, apivalidation.ValidateAnnotations(template.Annotations, fldPath.Child("annotations"))...)
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allErrs = append(allErrs, apivalidation.ValidatePodSpecificAnnotations(template.Annotations, fldPath.Child("annotations"))...)
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}
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return allErrs
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}
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// ValidatePetSetSpec tests if required fields in the PetSet spec are set.
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func ValidatePetSetSpec(spec *apps.PetSetSpec, fldPath *field.Path) field.ErrorList {
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allErrs := field.ErrorList{}
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allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(int64(spec.Replicas), fldPath.Child("replicas"))...)
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if spec.Selector == nil {
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allErrs = append(allErrs, field.Required(fldPath.Child("selector"), ""))
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} else {
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allErrs = append(allErrs, unversionedvalidation.ValidateLabelSelector(spec.Selector, fldPath.Child("selector"))...)
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if len(spec.Selector.MatchLabels)+len(spec.Selector.MatchExpressions) == 0 {
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allErrs = append(allErrs, field.Invalid(fldPath.Child("selector"), spec.Selector, "empty selector is not valid for petset."))
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}
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}
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selector, err := unversioned.LabelSelectorAsSelector(spec.Selector)
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if err != nil {
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allErrs = append(allErrs, field.Invalid(fldPath.Child("selector"), spec.Selector, ""))
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} else {
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allErrs = append(allErrs, ValidatePodTemplateSpecForPetSet(&spec.Template, selector, fldPath.Child("template"))...)
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}
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if spec.Template.Spec.RestartPolicy != api.RestartPolicyAlways {
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allErrs = append(allErrs, field.NotSupported(fldPath.Child("template", "spec", "restartPolicy"), spec.Template.Spec.RestartPolicy, []string{string(api.RestartPolicyAlways)}))
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}
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return allErrs
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}
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// ValidatePetSet validates a PetSet.
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func ValidatePetSet(petSet *apps.PetSet) field.ErrorList {
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allErrs := apivalidation.ValidateObjectMeta(&petSet.ObjectMeta, true, ValidatePetSetName, field.NewPath("metadata"))
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allErrs = append(allErrs, ValidatePetSetSpec(&petSet.Spec, field.NewPath("spec"))...)
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return allErrs
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}
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// ValidatePetSetUpdate tests if required fields in the PetSet are set.
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func ValidatePetSetUpdate(petSet, oldPetSet *apps.PetSet) field.ErrorList {
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allErrs := field.ErrorList{}
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allErrs = append(allErrs, apivalidation.ValidateObjectMetaUpdate(&petSet.ObjectMeta, &oldPetSet.ObjectMeta, field.NewPath("metadata"))...)
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allErrs = append(allErrs, ValidatePetSetSpec(&petSet.Spec, field.NewPath("spec"))...)
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return allErrs
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}
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// ValidatePetSetStatusUpdate tests if required fields in the PetSet are set.
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func ValidatePetSetStatusUpdate(petSet, oldPetSet *apps.PetSet) field.ErrorList {
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allErrs := field.ErrorList{}
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allErrs = append(allErrs, apivalidation.ValidateObjectMetaUpdate(&petSet.ObjectMeta, &oldPetSet.ObjectMeta, field.NewPath("metadata"))...)
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// TODO: Validate status.
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return allErrs
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}
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