125 lines
4.3 KiB
Go
125 lines
4.3 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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 cronjob
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/validation/field"
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genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
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"k8s.io/apiserver/pkg/storage/names"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/apis/batch"
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"k8s.io/kubernetes/pkg/apis/batch/validation"
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"k8s.io/kubernetes/pkg/genericapiserver/registry/generic"
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"k8s.io/kubernetes/pkg/storage"
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)
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// scheduledJobStrategy implements verification logic for Replication Controllers.
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type scheduledJobStrategy struct {
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runtime.ObjectTyper
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names.NameGenerator
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}
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// Strategy is the default logic that applies when creating and updating CronJob objects.
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var Strategy = scheduledJobStrategy{api.Scheme, names.SimpleNameGenerator}
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// NamespaceScoped returns true because all scheduled jobs need to be within a namespace.
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func (scheduledJobStrategy) NamespaceScoped() bool {
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return true
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}
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// PrepareForCreate clears the status of a scheduled job before creation.
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func (scheduledJobStrategy) PrepareForCreate(ctx genericapirequest.Context, obj runtime.Object) {
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scheduledJob := obj.(*batch.CronJob)
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scheduledJob.Status = batch.CronJobStatus{}
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}
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// PrepareForUpdate clears fields that are not allowed to be set by end users on update.
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func (scheduledJobStrategy) PrepareForUpdate(ctx genericapirequest.Context, obj, old runtime.Object) {
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newCronJob := obj.(*batch.CronJob)
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oldCronJob := old.(*batch.CronJob)
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newCronJob.Status = oldCronJob.Status
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}
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// Validate validates a new scheduled job.
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func (scheduledJobStrategy) Validate(ctx genericapirequest.Context, obj runtime.Object) field.ErrorList {
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scheduledJob := obj.(*batch.CronJob)
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return validation.ValidateCronJob(scheduledJob)
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}
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// Canonicalize normalizes the object after validation.
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func (scheduledJobStrategy) Canonicalize(obj runtime.Object) {
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}
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func (scheduledJobStrategy) AllowUnconditionalUpdate() bool {
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return true
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}
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// AllowCreateOnUpdate is false for scheduled jobs; this means a POST is needed to create one.
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func (scheduledJobStrategy) AllowCreateOnUpdate() bool {
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return false
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}
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// ValidateUpdate is the default update validation for an end user.
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func (scheduledJobStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old runtime.Object) field.ErrorList {
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return validation.ValidateCronJob(obj.(*batch.CronJob))
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}
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type scheduledJobStatusStrategy struct {
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scheduledJobStrategy
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}
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var StatusStrategy = scheduledJobStatusStrategy{Strategy}
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func (scheduledJobStatusStrategy) PrepareForUpdate(ctx genericapirequest.Context, obj, old runtime.Object) {
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newJob := obj.(*batch.CronJob)
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oldJob := old.(*batch.CronJob)
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newJob.Spec = oldJob.Spec
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}
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func (scheduledJobStatusStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old runtime.Object) field.ErrorList {
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return field.ErrorList{}
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}
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// CronJobToSelectableFields returns a field set that represents the object for matching purposes.
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func CronJobToSelectableFields(scheduledJob *batch.CronJob) fields.Set {
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return generic.ObjectMetaFieldsSet(&scheduledJob.ObjectMeta, true)
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}
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// GetAttrs returns labels and fields of a given object for filtering purposes.
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func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, error) {
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scheduledJob, ok := obj.(*batch.CronJob)
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if !ok {
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return nil, nil, fmt.Errorf("Given object is not a scheduled job.")
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}
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return labels.Set(scheduledJob.ObjectMeta.Labels), CronJobToSelectableFields(scheduledJob), nil
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}
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// MatchCronJob is the filter used by the generic etcd backend to route
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// watch events from etcd to clients of the apiserver only interested in specific
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// labels/fields.
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func MatchCronJob(label labels.Selector, field fields.Selector) storage.SelectionPredicate {
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return storage.SelectionPredicate{
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Label: label,
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Field: field,
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GetAttrs: GetAttrs,
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}
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}
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