292 lines
9.0 KiB
Go
292 lines
9.0 KiB
Go
/*
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Copyright 2022 The Kruise Authors.
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Copyright 2018 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 create
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import (
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"context"
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"fmt"
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kruiseappsv1alpha1 "github.com/openkruise/kruise-api/apps/v1alpha1"
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kruiseclientsets "github.com/openkruise/kruise-api/client/clientset/versioned"
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"github.com/spf13/cobra"
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batchv1 "k8s.io/api/batch/v1"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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"k8s.io/cli-runtime/pkg/resource"
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cmdutil "k8s.io/kubectl/pkg/cmd/util"
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"k8s.io/kubectl/pkg/scheme"
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"k8s.io/kubectl/pkg/util"
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"k8s.io/kubectl/pkg/util/i18n"
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"k8s.io/kubectl/pkg/util/templates"
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)
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var (
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broadcastJobLong = templates.LongDesc(i18n.T(`
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Create a broadcastJob with the specified name.`))
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broadcastJobExample = templates.Examples(i18n.T(`
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# Create a broadcastJob
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kubectl kruise create broadcastJob my-bcj --image=busybox
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# Create a broadcastJob with command
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kubectl kruise create broadcastJob my-bcj --image=busybox -- date
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# Create a broadcastJob from a AdvancedCronJob named "a-advancedCronjob"
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kubectl kruise create broadcastJob test-bcj --from=acj/a-advancedCronjob`))
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)
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// CreateBroadcastJobOptions is the command line options for 'create broadcastJob'
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type CreateBroadcastJobOptions struct {
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PrintFlags *genericclioptions.PrintFlags
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PrintObj func(obj runtime.Object) error
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Name string
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Image string
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From string
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Command []string
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Namespace string
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EnforceNamespace bool
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kruisev1alpha1Client kruiseclientsets.Interface
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DryRunStrategy cmdutil.DryRunStrategy
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Builder *resource.Builder
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FieldManager string
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CreateAnnotation bool
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genericclioptions.IOStreams
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}
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// NewCreateBroadcastJobOptions initializes and returns new CreateBroadcastJobOptions instance
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func NewCreateBroadcastJobOptions(ioStreams genericclioptions.IOStreams) *CreateBroadcastJobOptions {
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return &CreateBroadcastJobOptions{
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PrintFlags: genericclioptions.NewPrintFlags("created").WithTypeSetter(scheme.Scheme),
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IOStreams: ioStreams,
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}
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}
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// NewCmdCreateBroadcastJob is a command to ease creating BroadcastJobs from AdvancedCronJobs.
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func NewCmdCreateBroadcastJob(f cmdutil.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
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o := NewCreateBroadcastJobOptions(ioStreams)
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cmd := &cobra.Command{
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Use: "broadcastJob NAME --image=image [--from=cronjob/name] -- [COMMAND] [args...]",
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DisableFlagsInUseLine: true,
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Short: broadcastJobLong,
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Long: broadcastJobLong,
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Example: broadcastJobExample,
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Run: func(cmd *cobra.Command, args []string) {
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cmdutil.CheckErr(o.Complete(f, cmd, args))
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cmdutil.CheckErr(o.Validate())
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cmdutil.CheckErr(o.Run())
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},
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}
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o.PrintFlags.AddFlags(cmd)
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cmdutil.AddApplyAnnotationFlags(cmd)
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cmdutil.AddValidateFlags(cmd)
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cmdutil.AddDryRunFlag(cmd)
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cmd.Flags().StringVar(&o.Image, "image", o.Image, "Image name to run.")
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cmd.Flags().StringVar(&o.From, "from", o.From, "The name of the resource to create a BroadcastJob from (only advancedCronjob is supported).")
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cmdutil.AddFieldManagerFlagVar(cmd, &o.FieldManager, "kubectl kruise-create")
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return cmd
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}
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// Complete completes all the required options
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func (o *CreateBroadcastJobOptions) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
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name, err := NameFromCommandArgs(cmd, args)
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if err != nil {
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return err
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}
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o.Name = name
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if len(args) > 1 {
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o.Command = args[1:]
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}
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clientConfig, err := f.ToRESTConfig()
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if err != nil {
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return err
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}
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o.kruisev1alpha1Client, err = kruiseclientsets.NewForConfig(clientConfig)
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if err != nil {
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return err
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}
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o.CreateAnnotation = cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag)
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o.Namespace, o.EnforceNamespace, err = f.ToRawKubeConfigLoader().Namespace()
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if err != nil {
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return err
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}
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o.Builder = f.NewBuilder()
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o.DryRunStrategy, err = cmdutil.GetDryRunStrategy(cmd)
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if err != nil {
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return err
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}
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cmdutil.PrintFlagsWithDryRunStrategy(o.PrintFlags, o.DryRunStrategy)
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printer, err := o.PrintFlags.ToPrinter()
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if err != nil {
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return err
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}
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o.PrintObj = func(obj runtime.Object) error {
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return printer.PrintObj(obj, o.Out)
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}
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return nil
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}
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// Validate makes sure provided values and valid BroadcastJob options
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func (o *CreateBroadcastJobOptions) Validate() error {
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if (len(o.Image) == 0 && len(o.From) == 0) || (len(o.Image) != 0 && len(o.From) != 0) {
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return fmt.Errorf("either --image or --from must be specified")
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}
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if o.Command != nil && len(o.Command) != 0 && len(o.From) != 0 {
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return fmt.Errorf("cannot specify --from and command")
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}
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return nil
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}
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// Run performs the execution of 'create broadcastJob' sub command
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func (o *CreateBroadcastJobOptions) Run() error {
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var job *kruiseappsv1alpha1.BroadcastJob
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if len(o.Image) > 0 {
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job = o.createBroadcastJob()
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} else {
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infos, err := o.Builder.
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WithScheme(scheme.Scheme, scheme.Scheme.PrioritizedVersionsAllGroups()...).
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NamespaceParam(o.Namespace).DefaultNamespace().
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ResourceTypeOrNameArgs(false, o.From).
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Flatten().
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Latest().
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Do().
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Infos()
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if err != nil {
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return err
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}
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if len(infos) != 1 {
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return fmt.Errorf("from must be an existing advancedCronJob")
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}
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switch obj := infos[0].Object.(type) {
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case *kruiseappsv1alpha1.AdvancedCronJob:
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job, err = o.createBroadcastJobFromAdvancedCronJob(obj)
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if err != nil {
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return err
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}
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default:
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return fmt.Errorf("unknown object type %T", obj)
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}
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}
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if err := util.CreateOrUpdateAnnotation(o.CreateAnnotation, job, scheme.DefaultJSONEncoder()); err != nil {
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return err
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}
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if o.DryRunStrategy != cmdutil.DryRunClient {
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createOptions := metav1.CreateOptions{}
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if o.FieldManager != "" {
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createOptions.FieldManager = o.FieldManager
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}
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if o.DryRunStrategy == cmdutil.DryRunServer {
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createOptions.DryRun = []string{metav1.DryRunAll}
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}
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var err error
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job, err = o.kruisev1alpha1Client.AppsV1alpha1().BroadcastJobs(o.Namespace).Create(context.TODO(), job, createOptions)
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if err != nil {
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return fmt.Errorf("failed to create job: %v", err)
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}
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}
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return o.PrintObj(job)
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}
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func (o *CreateBroadcastJobOptions) createBroadcastJob() *kruiseappsv1alpha1.BroadcastJob {
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job := &kruiseappsv1alpha1.BroadcastJob{
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// this is ok because we know exactly how we want to be serialized
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TypeMeta: metav1.TypeMeta{APIVersion: batchv1.SchemeGroupVersion.String(), Kind: kruiseappsv1alpha1.AdvancedCronJobKind},
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ObjectMeta: metav1.ObjectMeta{
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Name: o.Name,
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},
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Spec: kruiseappsv1alpha1.BroadcastJobSpec{
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Template: corev1.PodTemplateSpec{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Name: o.Name,
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Image: o.Image,
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Command: o.Command,
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},
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},
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RestartPolicy: corev1.RestartPolicyNever,
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},
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},
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},
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}
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if o.EnforceNamespace {
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job.Namespace = o.Namespace
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}
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return job
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}
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func (o *CreateBroadcastJobOptions) createBroadcastJobFromAdvancedCronJob(cronJob *kruiseappsv1alpha1.AdvancedCronJob) (*kruiseappsv1alpha1.BroadcastJob, error) {
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if cronJob.Status.Type != kruiseappsv1alpha1.BroadcastJobTemplate {
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return nil, fmt.Errorf("from must be a broadcastJob template, but got %v", cronJob.Status.Type)
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}
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job := o.createBroadcastJobFromBroadcastJobTemplate(cronJob.GetName(), cronJob.GetUID(), cronJob.Spec.Template.BroadcastJobTemplate)
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return job, nil
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}
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func (o *CreateBroadcastJobOptions) createBroadcastJobFromBroadcastJobTemplate(ownerReferenceName string, ownerReferenceUID types.UID,
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broadcastJobTemplate *kruiseappsv1alpha1.BroadcastJobTemplateSpec) *kruiseappsv1alpha1.BroadcastJob {
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annotations := make(map[string]string)
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broadcastJob := &kruiseappsv1alpha1.BroadcastJob{}
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annotations["cronjob.kubernetes.io/instantiate"] = "manual"
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for k, v := range broadcastJobTemplate.Annotations {
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annotations[k] = v
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}
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broadcastJob = &kruiseappsv1alpha1.BroadcastJob{
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// this is ok because we know exactly how we want to be serialized
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TypeMeta: metav1.TypeMeta{APIVersion: batchv1.SchemeGroupVersion.String(), Kind: "Job"},
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ObjectMeta: metav1.ObjectMeta{
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Name: o.Name,
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Annotations: annotations,
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Labels: broadcastJobTemplate.Labels,
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OwnerReferences: []metav1.OwnerReference{
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{
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APIVersion: kruiseappsv1alpha1.SchemeGroupVersion.String(),
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Kind: kruiseappsv1alpha1.AdvancedCronJobKind,
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Name: ownerReferenceName,
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UID: ownerReferenceUID,
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},
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},
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},
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Spec: broadcastJobTemplate.Spec,
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}
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if o.EnforceNamespace {
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broadcastJob.Namespace = o.Namespace
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}
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return broadcastJob
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}
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