func RunStop(f cmdutil.Factory, cmd *cobra.Command, args []string, out io.Writer, options *resource.FilenameOptions) error { cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } mapper, typer := f.Object() r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). ResourceTypeOrNameArgs(false, args...). FilenameParam(enforceNamespace, options). SelectorParam(cmdutil.GetFlagString(cmd, "selector")). SelectAllParam(cmdutil.GetFlagBool(cmd, "all")). Flatten(). Do() if r.Err() != nil { return r.Err() } shortOutput := cmdutil.GetFlagString(cmd, "output") == "name" gracePeriod := cmdutil.GetFlagInt(cmd, "grace-period") waitForDeletion := false if gracePeriod == 0 { // To preserve backwards compatibility, but prevent accidental data loss, we convert --grace-period=0 // into --grace-period=1 and wait until the object is successfully deleted. gracePeriod = 1 waitForDeletion = true } return ReapResult(r, f, out, false, cmdutil.GetFlagBool(cmd, "ignore-not-found"), cmdutil.GetFlagDuration(cmd, "timeout"), gracePeriod, waitForDeletion, shortOutput, mapper, false) }
func RunStop(f *cmdutil.Factory, cmd *cobra.Command, args []string, out io.Writer, options *StopOptions) error { cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } cmdTenant, enforceTenant, err := f.DefaultTenant() if err != nil { return err } mapper, typer := f.Object() r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). TenantParam(cmdTenant).DefaultTenant(). ResourceTypeOrNameArgs(false, args...). FilenameParam(enforceTenant, enforceNamespace, options.Filenames...). SelectorParam(cmdutil.GetFlagString(cmd, "selector")). SelectAllParam(cmdutil.GetFlagBool(cmd, "all")). Flatten(). Do() if r.Err() != nil { return r.Err() } shortOutput := cmdutil.GetFlagString(cmd, "output") == "name" return ReapResult(r, f, out, false, cmdutil.GetFlagBool(cmd, "ignore-not-found"), cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper) }
func (o *LogsOptions) Complete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error { containerName := cmdutil.GetFlagString(cmd, "container") switch len(args) { case 0: return cmdutil.UsageError(cmd, "POD is required for logs") case 1: o.ResourceArg = args[0] case 2: if cmd.Flag("container").Changed { return cmdutil.UsageError(cmd, "only one of -c, [CONTAINER] arg is allowed") } o.ResourceArg = args[0] containerName = args[1] default: return cmdutil.UsageError(cmd, "logs POD [-c CONTAINER]") } var err error o.Namespace, _, err = f.DefaultNamespace() if err != nil { return err } logOptions := &api.PodLogOptions{ Container: containerName, Follow: cmdutil.GetFlagBool(cmd, "follow"), Previous: cmdutil.GetFlagBool(cmd, "previous"), Timestamps: cmdutil.GetFlagBool(cmd, "timestamps"), } if sinceTime := cmdutil.GetFlagString(cmd, "since-time"); len(sinceTime) > 0 { t, err := api.ParseRFC3339(sinceTime, unversioned.Now) if err != nil { return err } logOptions.SinceTime = &t } if limit := cmdutil.GetFlagInt64(cmd, "limit-bytes"); limit != 0 { logOptions.LimitBytes = &limit } if tail := cmdutil.GetFlagInt64(cmd, "tail"); tail != -1 { logOptions.TailLines = &tail } if sinceSeconds := cmdutil.GetFlagDuration(cmd, "since"); sinceSeconds != 0 { // round up to the nearest second sec := int64(math.Ceil(float64(sinceSeconds) / float64(time.Second))) logOptions.SinceSeconds = &sec } o.Options = logOptions o.Mapper, o.Typer = f.Object() o.Decoder = f.Decoder(true) o.ClientMapper = resource.ClientMapperFunc(f.ClientForMapping) o.LogsForObject = f.LogsForObject o.Out = out return nil }
func RunDelete(f cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *resource.FilenameOptions) error { cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } deleteAll := cmdutil.GetFlagBool(cmd, "all") mapper, typer, err := f.UnstructuredObject() if err != nil { return err } r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.UnstructuredClientForMapping), runtime.UnstructuredJSONScheme). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, options). SelectorParam(cmdutil.GetFlagString(cmd, "selector")). SelectAllParam(deleteAll). ResourceTypeOrNameArgs(false, args...).RequireObject(false). Flatten(). Do() err = r.Err() if err != nil { return err } ignoreNotFound := cmdutil.GetFlagBool(cmd, "ignore-not-found") if deleteAll { f := cmd.Flags().Lookup("ignore-not-found") // The flag should never be missing if f == nil { return fmt.Errorf("missing --ignore-not-found flag") } // If the user didn't explicitly set the option, default to ignoring NotFound errors when used with --all if !f.Changed { ignoreNotFound = true } } gracePeriod := cmdutil.GetFlagInt(cmd, "grace-period") if cmdutil.GetFlagBool(cmd, "now") { if gracePeriod != -1 { return fmt.Errorf("--now and --grace-period cannot be specified together") } gracePeriod = 1 } if gracePeriod == 0 && !cmdutil.GetFlagBool(cmd, "force") { return fmt.Errorf("Immediate deletion does not wait for confirmation that the running resource has been terminated. The resource may continue to run on the cluster indefinitely. You must pass --force to delete with grace period 0.") } shortOutput := cmdutil.GetFlagString(cmd, "output") == "name" // By default use a reaper to delete all related resources. if cmdutil.GetFlagBool(cmd, "cascade") { return ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), gracePeriod, shortOutput, mapper, false) } return DeleteResult(r, out, ignoreNotFound, shortOutput, mapper) }
func RunDelete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *DeleteOptions) error { cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } deleteAll := cmdutil.GetFlagBool(cmd, "all") mapper, typer := f.Object(cmdutil.GetIncludeThirdPartyAPIs(cmd)) r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, options.Recursive, options.Filenames...). SelectorParam(cmdutil.GetFlagString(cmd, "selector")). SelectAllParam(deleteAll). ResourceTypeOrNameArgs(false, args...).RequireObject(false). Flatten(). Do() err = r.Err() if err != nil { return err } ignoreNotFound := cmdutil.GetFlagBool(cmd, "ignore-not-found") if deleteAll { f := cmd.Flags().Lookup("ignore-not-found") // The flag should never be missing if f == nil { return fmt.Errorf("missing --ignore-not-found flag") } // If the user didn't explicitly set the option, default to ignoring NotFound errors when used with --all if !f.Changed { ignoreNotFound = true } } gracePeriod := cmdutil.GetFlagInt(cmd, "grace-period") if cmdutil.GetFlagBool(cmd, "now") { if gracePeriod != -1 { return fmt.Errorf("--now and --grace-period cannot be specified together") } gracePeriod = 0 } shortOutput := cmdutil.GetFlagString(cmd, "output") == "name" // By default use a reaper to delete all related resources. if cmdutil.GetFlagBool(cmd, "cascade") { return ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), gracePeriod, shortOutput, mapper) } return DeleteResult(r, out, ignoreNotFound, shortOutput, mapper) }
func RunDelete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames util.StringList, shortOutput bool) error { cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } deleteAll := cmdutil.GetFlagBool(cmd, "all") mapper, typer := f.Object() r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, filenames...). SelectorParam(cmdutil.GetFlagString(cmd, "selector")). SelectAllParam(deleteAll). ResourceTypeOrNameArgs(false, args...).RequireObject(false). Flatten(). Do() err = r.Err() if err != nil { return err } ignoreNotFound := cmdutil.GetFlagBool(cmd, "ignore-not-found") if deleteAll { f := cmd.Flags().Lookup("ignore-not-found") // The flag should never be missing if f == nil { return fmt.Errorf("missing --ignore-not-found flag") } // If the user didn't explicitly set the option, default to ignoring NotFound errors when used with --all if !f.Changed { ignoreNotFound = true } } // By default use a reaper to delete all related resources. if cmdutil.GetFlagBool(cmd, "cascade") { return ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper) } return DeleteResult(r, out, ignoreNotFound, shortOutput, mapper) }
func RunReplace(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *resource.FilenameOptions) error { if len(os.Args) > 1 && os.Args[1] == "update" { printDeprecationWarning("replace", "update") } schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir")) if err != nil { return err } cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } force := cmdutil.GetFlagBool(cmd, "force") if cmdutil.IsFilenameEmpty(options.Filenames) { return cmdutil.UsageError(cmd, "Must specify --filename to replace") } shortOutput := cmdutil.GetFlagString(cmd, "output") == "name" if force { return forceReplace(f, out, cmd, args, shortOutput, options) } if cmdutil.GetFlagInt(cmd, "grace-period") >= 0 { return fmt.Errorf("--grace-period must have --force specified") } if cmdutil.GetFlagDuration(cmd, "timeout") != 0 { return fmt.Errorf("--timeout must have --force specified") } mapper, typer := f.Object() r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)). Schema(schema). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, options). Flatten(). Do() err = r.Err() if err != nil { return err } return r.Visit(func(info *resource.Info, err error) error { if err != nil { return err } if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info, f.JSONEncoder()); err != nil { return cmdutil.AddSourceToErr("replacing", info.Source, err) } if cmdutil.ShouldRecord(cmd, info) { if err := cmdutil.RecordChangeCause(info.Object, f.Command()); err != nil { return cmdutil.AddSourceToErr("replacing", info.Source, err) } } // Serialize the object with the annotation applied. obj, err := resource.NewHelper(info.Client, info.Mapping).Replace(info.Namespace, info.Name, true, info.Object) if err != nil { return cmdutil.AddSourceToErr("replacing", info.Source, err) } info.Refresh(obj, true) f.PrintObjectSpecificMessage(obj, out) cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, false, "replaced") return nil }) }
func forceReplace(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, shortOutput bool, options *resource.FilenameOptions) error { schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir")) if err != nil { return err } cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } for i, filename := range options.Filenames { if filename == "-" { tempDir, err := ioutil.TempDir("", "kubectl_replace_") if err != nil { return err } defer os.RemoveAll(tempDir) tempFilename := filepath.Join(tempDir, "resource.stdin") err = cmdutil.DumpReaderToFile(os.Stdin, tempFilename) if err != nil { return err } options.Filenames[i] = tempFilename } } mapper, typer, err := f.UnstructuredObject() if err != nil { return err } r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.UnstructuredClientForMapping), runtime.UnstructuredJSONScheme). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, options). ResourceTypeOrNameArgs(false, args...).RequireObject(false). Flatten(). Do() err = r.Err() if err != nil { return err } //Replace will create a resource if it doesn't exist already, so ignore not found error ignoreNotFound := true timeout := cmdutil.GetFlagDuration(cmd, "timeout") // By default use a reaper to delete all related resources. if cmdutil.GetFlagBool(cmd, "cascade") { glog.Warningf("\"cascade\" is set, kubectl will delete and re-create all resources managed by this resource (e.g. Pods created by a ReplicationController). Consider using \"kubectl rolling-update\" if you want to update a ReplicationController together with its Pods.") err = ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, timeout, cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper, false) } else { err = DeleteResult(r, out, ignoreNotFound, shortOutput, mapper) } if err != nil { return err } if timeout == 0 { timeout = kubectl.Timeout } r.Visit(func(info *resource.Info, err error) error { if err != nil { return err } return wait.PollImmediate(kubectl.Interval, timeout, func() (bool, error) { if err := info.Get(); !errors.IsNotFound(err) { return false, err } return true, nil }) }) r = resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.UnstructuredClientForMapping), runtime.UnstructuredJSONScheme). Schema(schema). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, options). Flatten(). Do() err = r.Err() if err != nil { return err } count := 0 err = r.Visit(func(info *resource.Info, err error) error { if err != nil { return err } if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info, f.JSONEncoder()); err != nil { return err } if cmdutil.ShouldRecord(cmd, info) { if err := cmdutil.RecordChangeCause(info.Object, f.Command()); err != nil { return cmdutil.AddSourceToErr("replacing", info.Source, err) } } obj, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, info.Object) if err != nil { return err } count++ info.Refresh(obj, true) f.PrintObjectSpecificMessage(obj, out) cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, false, "replaced") return nil }) if err != nil { return err } if count == 0 { return fmt.Errorf("no objects passed to replace") } return nil }
// RunLog retrieves a pod log func RunLog(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, p *logParams) error { if len(os.Args) > 1 && os.Args[1] == "log" { printDeprecationWarning("logs", "log") } if len(args) == 0 { return cmdutil.UsageError(cmd, "POD is required for log") } if len(args) > 2 { return cmdutil.UsageError(cmd, "log POD [CONTAINER]") } sinceSeconds := cmdutil.GetFlagDuration(cmd, "since") sinceTime := cmdutil.GetFlagString(cmd, "since-time") if len(sinceTime) > 0 && sinceSeconds > 0 { return cmdutil.UsageError(cmd, "only one of --since, --since-time may be specified") } namespace, _, err := f.DefaultNamespace() if err != nil { return err } client, err := f.Client() if err != nil { return err } podID := args[0] pod, err := client.Pods(namespace).Get(podID) if err != nil { return err } // [-c CONTAINER] container := p.containerName if len(container) == 0 { // [CONTAINER] (container as arg not flag) is supported as legacy behavior. See PR #10519 for more details. if len(args) == 1 { if len(pod.Spec.Containers) != 1 { podContainersNames := []string{} for _, container := range pod.Spec.Containers { podContainersNames = append(podContainersNames, container.Name) } return fmt.Errorf("Pod %s has the following containers: %s; please specify the container to print logs for with -c", pod.ObjectMeta.Name, strings.Join(podContainersNames, ", ")) } container = pod.Spec.Containers[0].Name } else { container = args[1] } } logOptions := &api.PodLogOptions{ Container: container, Follow: cmdutil.GetFlagBool(cmd, "follow"), Previous: cmdutil.GetFlagBool(cmd, "previous"), Timestamps: cmdutil.GetFlagBool(cmd, "timestamps"), } if sinceSeconds > 0 { // round up to the nearest second sec := int64(math.Ceil(float64(sinceSeconds) / float64(time.Second))) logOptions.SinceSeconds = &sec } if t, err := api.ParseRFC3339(sinceTime, unversioned.Now); err == nil { logOptions.SinceTime = &t } if limitBytes := cmdutil.GetFlagInt(cmd, "limit-bytes"); limitBytes != 0 { i := int64(limitBytes) logOptions.LimitBytes = &i } if tail := cmdutil.GetFlagInt(cmd, "tail"); tail >= 0 { i := int64(tail) logOptions.TailLines = &i } return handleLog(client, namespace, podID, logOptions, out) }
func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error { if len(os.Args) > 1 && os.Args[1] == "rollingupdate" { printDeprecationWarning("rolling-update", "rollingupdate") } deploymentKey, filename, image, oldName, err := validateArguments(cmd, args) if err != nil { return err } period := cmdutil.GetFlagDuration(cmd, "update-period") interval := cmdutil.GetFlagDuration(cmd, "poll-interval") timeout := cmdutil.GetFlagDuration(cmd, "timeout") dryrun := cmdutil.GetFlagBool(cmd, "dry-run") cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } client, err := f.Client() if err != nil { return err } updaterClient := kubectl.NewRollingUpdaterClient(client) var newRc *api.ReplicationController // fetch rc oldRc, err := client.ReplicationControllers(cmdNamespace).Get(oldName) if err != nil { if !errors.IsNotFound(err) || len(image) == 0 || len(args) > 1 { return err } // We're in the middle of a rename, look for an RC with a source annotation of oldName newRc, err := kubectl.FindSourceController(updaterClient, cmdNamespace, oldName) if err != nil { return err } return kubectl.Rename(kubectl.NewRollingUpdaterClient(client), newRc, oldName) } var keepOldName bool var replicasDefaulted bool mapper, typer := f.Object() if len(filename) != 0 { schema, err := f.Validator() if err != nil { return err } request := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()). Schema(schema). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, filename). Do() obj, err := request.Object() if err != nil { return err } var ok bool // Handle filename input from stdin. The resource builder always returns an api.List // when creating resource(s) from a stream. if list, ok := obj.(*api.List); ok { if len(list.Items) > 1 { return cmdutil.UsageError(cmd, "%s specifies multiple items", filename) } obj = list.Items[0] } newRc, ok = obj.(*api.ReplicationController) if !ok { if _, kind, err := typer.ObjectVersionAndKind(obj); err == nil { return cmdutil.UsageError(cmd, "%s contains a %s not a ReplicationController", filename, kind) } glog.V(4).Infof("Object %#v is not a ReplicationController", obj) return cmdutil.UsageError(cmd, "%s does not specify a valid ReplicationController", filename) } infos, err := request.Infos() if err != nil || len(infos) != 1 { glog.V(2).Infof("was not able to recover adequate information to discover if .spec.replicas was defaulted") } else { replicasDefaulted = isReplicasDefaulted(infos[0]) } } // If the --image option is specified, we need to create a new rc with at least one different selector // than the old rc. This selector is the hash of the rc, which will differ because the new rc has a // different image. if len(image) != 0 { keepOldName = len(args) == 1 newName := findNewName(args, oldRc) if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil { return err } if newRc != nil { fmt.Fprintf(out, "Found existing update in progress (%s), resuming.\n", newRc.Name) } else { newRc, err = kubectl.CreateNewControllerFromCurrentController(client, cmdNamespace, oldName, newName, image, deploymentKey) if err != nil { return err } } // Update the existing replication controller with pointers to the 'next' controller // and adding the <deploymentKey> label if necessary to distinguish it from the 'next' controller. oldHash, err := api.HashObject(oldRc, client.Codec) if err != nil { return err } oldRc, err = kubectl.UpdateExistingReplicationController(client, oldRc, cmdNamespace, newRc.Name, deploymentKey, oldHash, out) if err != nil { return err } } if oldName == newRc.Name { return cmdutil.UsageError(cmd, "%s cannot have the same name as the existing ReplicationController %s", filename, oldName) } updater := kubectl.NewRollingUpdater(newRc.Namespace, updaterClient) // To successfully pull off a rolling update the new and old rc have to differ // by at least one selector. Every new pod should have the selector and every // old pod should not have the selector. var hasLabel bool for key, oldValue := range oldRc.Spec.Selector { if newValue, ok := newRc.Spec.Selector[key]; ok && newValue != oldValue { hasLabel = true break } } if !hasLabel { return cmdutil.UsageError(cmd, "%s must specify a matching key with non-equal value in Selector for %s", filename, oldName) } // TODO: handle scales during rolling update if replicasDefaulted { newRc.Spec.Replicas = oldRc.Spec.Replicas } if dryrun { oldRcData := &bytes.Buffer{} if err := f.PrintObject(cmd, oldRc, oldRcData); err != nil { return err } newRcData := &bytes.Buffer{} if err := f.PrintObject(cmd, newRc, newRcData); err != nil { return err } fmt.Fprintf(out, "Rolling from:\n%s\nTo:\n%s\n", string(oldRcData.Bytes()), string(newRcData.Bytes())) return nil } updateCleanupPolicy := kubectl.DeleteRollingUpdateCleanupPolicy if keepOldName { updateCleanupPolicy = kubectl.RenameRollingUpdateCleanupPolicy } config := &kubectl.RollingUpdaterConfig{ Out: out, OldRc: oldRc, NewRc: newRc, UpdatePeriod: period, Interval: interval, Timeout: timeout, CleanupPolicy: updateCleanupPolicy, UpdateAcceptor: kubectl.DefaultUpdateAcceptor, } if cmdutil.GetFlagBool(cmd, "rollback") { kubectl.AbortRollingUpdate(config) client.ReplicationControllers(config.NewRc.Namespace).Update(config.NewRc) } err = updater.Update(config) if err != nil { return err } if keepOldName { fmt.Fprintf(out, "%s\n", oldName) } else { fmt.Fprintf(out, "%s\n", newRc.Name) } return nil }
func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *RollingUpdateOptions) error { if len(os.Args) > 1 && os.Args[1] == "rollingupdate" { printDeprecationWarning("rolling-update", "rollingupdate") } err := validateArguments(cmd, options.Filenames, args) if err != nil { return err } deploymentKey := cmdutil.GetFlagString(cmd, "deployment-label-key") filename := "" image := cmdutil.GetFlagString(cmd, "image") pullPolicy := cmdutil.GetFlagString(cmd, "image-pull-policy") oldName := args[0] rollback := cmdutil.GetFlagBool(cmd, "rollback") period := cmdutil.GetFlagDuration(cmd, "update-period") interval := cmdutil.GetFlagDuration(cmd, "poll-interval") timeout := cmdutil.GetFlagDuration(cmd, "timeout") dryrun := cmdutil.GetFlagBool(cmd, "dry-run") outputFormat := cmdutil.GetFlagString(cmd, "output") container := cmdutil.GetFlagString(cmd, "container") if len(options.Filenames) > 0 { filename = options.Filenames[0] } cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } client, err := f.Client() if err != nil { return err } var newRc *api.ReplicationController // fetch rc oldRc, err := client.ReplicationControllers(cmdNamespace).Get(oldName) if err != nil { if !errors.IsNotFound(err) || len(image) == 0 || len(args) > 1 { return err } // We're in the middle of a rename, look for an RC with a source annotation of oldName newRc, err := kubectl.FindSourceController(client, cmdNamespace, oldName) if err != nil { return err } return kubectl.Rename(client, newRc, oldName) } var keepOldName bool var replicasDefaulted bool mapper, typer := f.Object(cmdutil.GetIncludeThirdPartyAPIs(cmd)) if len(filename) != 0 { schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir")) if err != nil { return err } request := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)). Schema(schema). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, false, filename). Do() obj, err := request.Object() if err != nil { return err } var ok bool // Handle filename input from stdin. The resource builder always returns an api.List // when creating resource(s) from a stream. if list, ok := obj.(*api.List); ok { if len(list.Items) > 1 { return cmdutil.UsageError(cmd, "%s specifies multiple items", filename) } obj = list.Items[0] } newRc, ok = obj.(*api.ReplicationController) if !ok { if gvk, err := typer.ObjectKind(obj); err == nil { return cmdutil.UsageError(cmd, "%s contains a %v not a ReplicationController", filename, gvk) } glog.V(4).Infof("Object %#v is not a ReplicationController", obj) return cmdutil.UsageError(cmd, "%s does not specify a valid ReplicationController", filename) } infos, err := request.Infos() if err != nil || len(infos) != 1 { glog.V(2).Infof("was not able to recover adequate information to discover if .spec.replicas was defaulted") } else { replicasDefaulted = isReplicasDefaulted(infos[0]) } } // If the --image option is specified, we need to create a new rc with at least one different selector // than the old rc. This selector is the hash of the rc, with a suffix to provide uniqueness for // same-image updates. if len(image) != 0 { codec := api.Codecs.LegacyCodec(client.APIVersion()) keepOldName = len(args) == 1 newName := findNewName(args, oldRc) if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil { return err } if newRc != nil { if inProgressImage := newRc.Spec.Template.Spec.Containers[0].Image; inProgressImage != image { return cmdutil.UsageError(cmd, "Found existing in-progress update to image (%s).\nEither continue in-progress update with --image=%s or rollback with --rollback", inProgressImage, inProgressImage) } fmt.Fprintf(out, "Found existing update in progress (%s), resuming.\n", newRc.Name) } else { config := &kubectl.NewControllerConfig{ Namespace: cmdNamespace, OldName: oldName, NewName: newName, Image: image, Container: container, DeploymentKey: deploymentKey, } if oldRc.Spec.Template.Spec.Containers[0].Image == image { if len(pullPolicy) == 0 { return cmdutil.UsageError(cmd, "--image-pull-policy (Always|Never|IfNotPresent) must be provided when --image is the same as existing container image") } config.PullPolicy = api.PullPolicy(pullPolicy) } newRc, err = kubectl.CreateNewControllerFromCurrentController(client, codec, config) if err != nil { return err } } // Update the existing replication controller with pointers to the 'next' controller // and adding the <deploymentKey> label if necessary to distinguish it from the 'next' controller. oldHash, err := api.HashObject(oldRc, codec) if err != nil { return err } // If new image is same as old, the hash may not be distinct, so add a suffix. oldHash += "-orig" oldRc, err = kubectl.UpdateExistingReplicationController(client, oldRc, cmdNamespace, newRc.Name, deploymentKey, oldHash, out) if err != nil { return err } } if rollback { keepOldName = len(args) == 1 newName := findNewName(args, oldRc) if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil { return err } if newRc == nil { return cmdutil.UsageError(cmd, "Could not find %s to rollback.\n", newName) } } if oldName == newRc.Name { return cmdutil.UsageError(cmd, "%s cannot have the same name as the existing ReplicationController %s", filename, oldName) } updater := kubectl.NewRollingUpdater(newRc.Namespace, client) // To successfully pull off a rolling update the new and old rc have to differ // by at least one selector. Every new pod should have the selector and every // old pod should not have the selector. var hasLabel bool for key, oldValue := range oldRc.Spec.Selector { if newValue, ok := newRc.Spec.Selector[key]; ok && newValue != oldValue { hasLabel = true break } } if !hasLabel { return cmdutil.UsageError(cmd, "%s must specify a matching key with non-equal value in Selector for %s", filename, oldName) } // TODO: handle scales during rolling update if replicasDefaulted { newRc.Spec.Replicas = oldRc.Spec.Replicas } if dryrun { oldRcData := &bytes.Buffer{} newRcData := &bytes.Buffer{} if outputFormat == "" { oldRcData.WriteString(oldRc.Name) newRcData.WriteString(newRc.Name) } else { if err := f.PrintObject(cmd, mapper, oldRc, oldRcData); err != nil { return err } if err := f.PrintObject(cmd, mapper, newRc, newRcData); err != nil { return err } } fmt.Fprintf(out, "Rolling from:\n%s\nTo:\n%s\n", string(oldRcData.Bytes()), string(newRcData.Bytes())) return nil } updateCleanupPolicy := kubectl.DeleteRollingUpdateCleanupPolicy if keepOldName { updateCleanupPolicy = kubectl.RenameRollingUpdateCleanupPolicy } config := &kubectl.RollingUpdaterConfig{ Out: out, OldRc: oldRc, NewRc: newRc, UpdatePeriod: period, Interval: interval, Timeout: timeout, CleanupPolicy: updateCleanupPolicy, MaxUnavailable: intstr.FromInt(0), MaxSurge: intstr.FromInt(1), } if rollback { err = kubectl.AbortRollingUpdate(config) if err != nil { return err } client.ReplicationControllers(config.NewRc.Namespace).Update(config.NewRc) } err = updater.Update(config) if err != nil { return err } message := "rolling updated" if keepOldName { newRc.Name = oldName } else { message = fmt.Sprintf("rolling updated to %q", newRc.Name) } newRc, err = client.ReplicationControllers(cmdNamespace).Get(newRc.Name) if err != nil { return err } if outputFormat != "" { return f.PrintObject(cmd, mapper, newRc, out) } kind, err := api.Scheme.ObjectKind(newRc) if err != nil { return err } _, res := meta.KindToResource(kind) cmdutil.PrintSuccess(mapper, false, out, res.Resource, oldName, message) return nil }
func forceReplace(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames []string, shortOutput bool) error { schema, err := f.Validator() if err != nil { return err } cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } for i, filename := range filenames { if filename == "-" { tempDir, err := ioutil.TempDir("", "kubectl_replace_") if err != nil { return err } defer os.RemoveAll(tempDir) tempFilename := filepath.Join(tempDir, "resource.stdin") err = cmdutil.DumpReaderToFile(os.Stdin, tempFilename) if err != nil { return err } filenames[i] = tempFilename } } mapper, typer := f.Object() r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, filenames...). ResourceTypeOrNameArgs(false, args...).RequireObject(false). Flatten(). Do() err = r.Err() if err != nil { return err } //Replace will create a resource if it doesn't exist already, so ignore not found error ignoreNotFound := true // By default use a reaper to delete all related resources. if cmdutil.GetFlagBool(cmd, "cascade") { glog.Warningf("\"cascade\" is set, kubectl will delete and re-create all resources managed by this resource (e.g. Pods created by a ReplicationController). Consider using \"kubectl rolling-update\" if you want to update a ReplicationController together with its Pods.") err = ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper) } else { err = DeleteResult(r, out, ignoreNotFound, shortOutput, mapper) } if err != nil { return err } r = resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()). Schema(schema). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, filenames...). Flatten(). Do() err = r.Err() if err != nil { return err } count := 0 err = r.Visit(func(info *resource.Info, err error) error { if err != nil { return err } data, err := info.Mapping.Codec.Encode(info.Object) if err != nil { return err } obj, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, data) if err != nil { return err } count++ info.Refresh(obj, true) printObjectSpecificMessage(obj, out) cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "replaced") return nil }) if err != nil { return err } if count == 0 { return fmt.Errorf("no objects passed to replace") } return nil }
// RunScale executes the scaling func RunScale(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, shortOutput bool, options *resource.FilenameOptions) error { if len(os.Args) > 1 && os.Args[1] == "resize" { printDeprecationWarning("scale", "resize") } cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } mapper, typer := f.Object() r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, options). ResourceTypeOrNameArgs(false, args...). Flatten(). Do() err = r.Err() if resource.IsUsageError(err) { return cmdutil.UsageError(cmd, err.Error()) } if err != nil { return err } count := cmdutil.GetFlagInt(cmd, "replicas") if count < 0 { return cmdutil.UsageError(cmd, "The --replicas=COUNT flag is required, and COUNT must be greater than or equal to 0") } infos := []*resource.Info{} err = r.Visit(func(info *resource.Info, err error) error { if err == nil { infos = append(infos, info) } return nil }) resourceVersion := cmdutil.GetFlagString(cmd, "resource-version") if len(resourceVersion) != 0 && len(infos) > 1 { return fmt.Errorf("cannot use --resource-version with multiple resources") } counter := 0 err = r.Visit(func(info *resource.Info, err error) error { if err != nil { return err } mapping := info.ResourceMapping() scaler, err := f.Scaler(mapping) if err != nil { return err } currentSize := cmdutil.GetFlagInt(cmd, "current-replicas") precondition := &kubectl.ScalePrecondition{Size: currentSize, ResourceVersion: resourceVersion} retry := kubectl.NewRetryParams(kubectl.Interval, kubectl.Timeout) var waitForReplicas *kubectl.RetryParams if timeout := cmdutil.GetFlagDuration(cmd, "timeout"); timeout != 0 { waitForReplicas = kubectl.NewRetryParams(kubectl.Interval, timeout) } if err := scaler.Scale(info.Namespace, info.Name, uint(count), precondition, retry, waitForReplicas); err != nil { return err } if cmdutil.ShouldRecord(cmd, info) { patchBytes, err := cmdutil.ChangeResourcePatch(info, f.Command()) if err != nil { return err } mapping := info.ResourceMapping() client, err := f.ClientForMapping(mapping) if err != nil { return err } helper := resource.NewHelper(client, mapping) _, err = helper.Patch(info.Namespace, info.Name, api.StrategicMergePatchType, patchBytes) if err != nil { return err } } counter++ cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, false, "scaled") return nil }) if err != nil { return err } if counter == 0 { return fmt.Errorf("no objects passed to scale") } return nil }
func forceReplace(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, shortOutput bool, options *ReplaceOptions) error { schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir")) if err != nil { return err } cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } cmdTenant, enforceTenant, err := f.DefaultTenant() if err != nil { return err } for i, filename := range options.Filenames { if filename == "-" { tempDir, err := ioutil.TempDir("", "kubectl_replace_") if err != nil { return err } defer os.RemoveAll(tempDir) tempFilename := filepath.Join(tempDir, "resource.stdin") err = cmdutil.DumpReaderToFile(os.Stdin, tempFilename) if err != nil { return err } options.Filenames[i] = tempFilename } } mapper, typer := f.Object() r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). TenantParam(cmdTenant).DefaultTenant(). FilenameParam(enforceTenant, enforceNamespace, options.Filenames...). ResourceTypeOrNameArgs(false, args...).RequireObject(false). Flatten(). Do() err = r.Err() if err != nil { return err } //Replace will create a resource if it doesn't exist already, so ignore not found error ignoreNotFound := true // By default use a reaper to delete all related resources. if cmdutil.GetFlagBool(cmd, "cascade") { err = ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper) } else { err = DeleteResult(r, out, ignoreNotFound, shortOutput, mapper) } if err != nil { return err } time.Sleep(200 * time.Millisecond) r = resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()). Schema(schema). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). TenantParam(cmdTenant).DefaultTenant(). FilenameParam(enforceTenant, enforceNamespace, options.Filenames...). Flatten(). Do() err = r.Err() if err != nil { return err } count := 0 err = r.Visit(func(info *resource.Info, err error) error { if err != nil { return err } if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info); err != nil { return err } obj, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, info.Object) if err != nil { return err } count++ info.Refresh(obj, true) printObjectSpecificMessage(obj, out) cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "replaced") return nil }) if err != nil { return err } if count == 0 { return fmt.Errorf("no objects passed to replace") } return nil }
func (o *LogsOptions) Complete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error { containerName := cmdutil.GetFlagString(cmd, "container") switch len(args) { case 0: return cmdutil.UsageError(cmd, logsUsageStr) case 1: o.ResourceArg = args[0] case 2: if cmd.Flag("container").Changed { return cmdutil.UsageError(cmd, "only one of -c or an inline [CONTAINER] arg is allowed") } o.ResourceArg = args[0] containerName = args[1] default: return cmdutil.UsageError(cmd, logsUsageStr) } var err error o.Namespace, _, err = f.DefaultNamespace() if err != nil { return err } logOptions := &api.PodLogOptions{ Container: containerName, Follow: cmdutil.GetFlagBool(cmd, "follow"), Previous: cmdutil.GetFlagBool(cmd, "previous"), Timestamps: cmdutil.GetFlagBool(cmd, "timestamps"), } if sinceTime := cmdutil.GetFlagString(cmd, "since-time"); len(sinceTime) > 0 { t, err := api.ParseRFC3339(sinceTime, unversioned.Now) if err != nil { return err } logOptions.SinceTime = &t } if limit := cmdutil.GetFlagInt64(cmd, "limit-bytes"); limit != 0 { logOptions.LimitBytes = &limit } if tail := cmdutil.GetFlagInt64(cmd, "tail"); tail != -1 { logOptions.TailLines = &tail } if sinceSeconds := cmdutil.GetFlagDuration(cmd, "since"); sinceSeconds != 0 { // round up to the nearest second sec := int64(math.Ceil(float64(sinceSeconds) / float64(time.Second))) logOptions.SinceSeconds = &sec } o.Options = logOptions o.LogsForObject = f.LogsForObject o.ClientMapper = resource.ClientMapperFunc(f.ClientForMapping) o.Out = out mapper, typer := f.Object() decoder := f.Decoder(true) if o.Object == nil { infos, err := resource.NewBuilder(mapper, typer, o.ClientMapper, decoder). NamespaceParam(o.Namespace).DefaultNamespace(). ResourceNames("pods", o.ResourceArg). SingleResourceType(). Do().Infos() if err != nil { return err } if len(infos) != 1 { return errors.New("expected a resource") } o.Object = infos[0].Object } return nil }
// RunScale executes the scaling func RunScale(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, shortOutput bool, options *ScaleOptions) error { if len(os.Args) > 1 && os.Args[1] == "resize" { printDeprecationWarning("scale", "resize") } count := cmdutil.GetFlagInt(cmd, "replicas") if count < 0 { return cmdutil.UsageError(cmd, "--replicas=COUNT is required, and COUNT must be greater than or equal to 0") } cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } cmdTenant, enforceTenant, err := f.DefaultTenant() if err != nil { return err } mapper, typer := f.Object() r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). TenantParam(cmdTenant).DefaultTenant(). FilenameParam(enforceTenant, enforceNamespace, options.Filenames...). ResourceTypeOrNameArgs(false, args...). Flatten(). Do() err = r.Err() if err != nil { return err } infos, err := r.Infos() if err != nil { return err } info := infos[0] mapping := info.ResourceMapping() scaler, err := f.Scaler(mapping) if err != nil { return err } resourceVersion := cmdutil.GetFlagString(cmd, "resource-version") if len(resourceVersion) != 0 && len(infos) > 1 { return fmt.Errorf("cannot use --resource-version with multiple controllers") } currentSize := cmdutil.GetFlagInt(cmd, "current-replicas") if currentSize != -1 && len(infos) > 1 { return fmt.Errorf("cannot use --current-replicas with multiple controllers") } precondition := &kubectl.ScalePrecondition{Size: currentSize, ResourceVersion: resourceVersion} retry := kubectl.NewRetryParams(kubectl.Interval, kubectl.Timeout) var waitForReplicas *kubectl.RetryParams if timeout := cmdutil.GetFlagDuration(cmd, "timeout"); timeout != 0 { waitForReplicas = kubectl.NewRetryParams(kubectl.Interval, timeout) } errs := []error{} for _, info := range infos { if err := scaler.Scale(info.Namespace, info.Name, uint(count), precondition, retry, waitForReplicas); err != nil { errs = append(errs, err) continue } cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "scaled") } return utilerrors.NewAggregate(errs) }
func RunDelete(f cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, args []string, options *resource.FilenameOptions) error { cmdNamespace, enforceNamespace, err := f.DefaultNamespace() if err != nil { return err } deleteAll := cmdutil.GetFlagBool(cmd, "all") mapper, typer, err := f.UnstructuredObject() if err != nil { return err } r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.UnstructuredClientForMapping), unstructured.UnstructuredJSONScheme). ContinueOnError(). NamespaceParam(cmdNamespace).DefaultNamespace(). FilenameParam(enforceNamespace, options). SelectorParam(cmdutil.GetFlagString(cmd, "selector")). SelectAllParam(deleteAll). ResourceTypeOrNameArgs(false, args...).RequireObject(false). Flatten(). Do() err = r.Err() if err != nil { return err } ignoreNotFound := cmdutil.GetFlagBool(cmd, "ignore-not-found") if deleteAll { f := cmd.Flags().Lookup("ignore-not-found") // The flag should never be missing if f == nil { return fmt.Errorf("missing --ignore-not-found flag") } // If the user didn't explicitly set the option, default to ignoring NotFound errors when used with --all if !f.Changed { ignoreNotFound = true } } gracePeriod := cmdutil.GetFlagInt(cmd, "grace-period") force := cmdutil.GetFlagBool(cmd, "force") if cmdutil.GetFlagBool(cmd, "now") { if gracePeriod != -1 { return fmt.Errorf("--now and --grace-period cannot be specified together") } gracePeriod = 1 } wait := false if gracePeriod == 0 { if force { fmt.Fprintf(errOut, "warning: Immediate deletion does not wait for confirmation that the running resource has been terminated. The resource may continue to run on the cluster indefinitely.\n") } else { // To preserve backwards compatibility, but prevent accidental data loss, we convert --grace-period=0 // into --grace-period=1 and wait until the object is successfully deleted. Users may provide --force // to bypass this wait. wait = true gracePeriod = 1 } } shortOutput := cmdutil.GetFlagString(cmd, "output") == "name" // By default use a reaper to delete all related resources. if cmdutil.GetFlagBool(cmd, "cascade") { return ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), gracePeriod, wait, shortOutput, mapper, false) } return DeleteResult(r, out, ignoreNotFound, shortOutput, mapper) }