Beispiel #1
0
// Complete assigns the SelectorOptions from args.
func (o *SelectorOptions) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string, out io.Writer) error {
	o.local = cmdutil.GetFlagBool(cmd, "local")
	o.all = cmdutil.GetFlagBool(cmd, "all")
	o.record = cmdutil.GetRecordFlag(cmd)
	o.dryrun = cmdutil.GetDryRunFlag(cmd)

	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	o.changeCause = f.Command()
	mapper, _ := f.Object()
	o.mapper = mapper
	o.encoder = f.JSONEncoder()

	o.builder = f.NewBuilder().
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, &o.fileOptions).
		Flatten()

	o.PrintObject = func(obj runtime.Object) error {
		return f.PrintObject(cmd, mapper, obj, o.out)
	}
	o.ClientForMapping = func(mapping *meta.RESTMapping) (resource.RESTClient, error) {
		return f.ClientForMapping(mapping)
	}

	o.resources, o.selector, err = getResourcesAndSelector(args)
	return err
}
Beispiel #2
0
// popCluster fetches the cluster object with the given name, deletes
// it and returns the deleted cluster object.
func popCluster(f cmdutil.Factory, name string) (*federationapi.Cluster, error) {
	// Boilerplate to create the secret in the host cluster.
	mapper, typer := f.Object()
	gvks, _, err := typer.ObjectKinds(&federationapi.Cluster{})
	if err != nil {
		return nil, err
	}
	gvk := gvks[0]
	mapping, err := mapper.RESTMapping(schema.GroupKind{Group: gvk.Group, Kind: gvk.Kind}, gvk.Version)
	if err != nil {
		return nil, err
	}
	client, err := f.ClientForMapping(mapping)
	if err != nil {
		return nil, err
	}

	rh := resource.NewHelper(client, mapping)
	obj, err := rh.Get("", name, false)

	if isNotFound(err) {
		// Cluster isn't registered, there isn't anything to be done here.
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	cluster, ok := obj.(*federationapi.Cluster)
	if !ok {
		return nil, fmt.Errorf("unexpected object type: expected \"federation/v1beta1.Cluster\", got %T: obj: %#v", obj, obj)
	}

	// Remove the cluster resource in the federation API server by
	// calling rh.Delete()
	return cluster, rh.Delete("", name)
}
Beispiel #3
0
func createGeneratedObject(f *cmdutil.Factory, cmd *cobra.Command, generator kubectl.Generator, names []kubectl.GeneratorParam, params map[string]interface{}, overrides, namespace string) (runtime.Object, string, meta.RESTMapper, *meta.RESTMapping, error) {
	err := kubectl.ValidateParams(names, params)
	if err != nil {
		return nil, "", nil, nil, err
	}

	// TODO: Validate flag usage against selected generator. More tricky since --expose was added.
	obj, err := generator.Generate(params)
	if err != nil {
		return nil, "", nil, nil, err
	}

	mapper, typer := f.Object()
	groupVersionKind, err := typer.ObjectKind(obj)
	if err != nil {
		return nil, "", nil, nil, err
	}

	if len(overrides) > 0 {
		codec := runtime.NewCodec(f.JSONEncoder(), f.Decoder(true))
		obj, err = cmdutil.Merge(codec, obj, overrides, groupVersionKind.Kind)
		if err != nil {
			return nil, "", nil, nil, err
		}
	}

	mapping, err := mapper.RESTMapping(groupVersionKind.GroupKind(), groupVersionKind.Version)
	if err != nil {
		return nil, "", nil, nil, err
	}
	client, err := f.ClientForMapping(mapping)
	if err != nil {
		return nil, "", nil, nil, err
	}

	// TODO: extract this flag to a central location, when such a location exists.
	if !cmdutil.GetFlagBool(cmd, "dry-run") {
		resourceMapper := &resource.Mapper{
			ObjectTyper:  typer,
			RESTMapper:   mapper,
			ClientMapper: resource.ClientMapperFunc(f.ClientForMapping),
			Decoder:      f.Decoder(true),
		}
		info, err := resourceMapper.InfoForObject(obj)
		if err != nil {
			return nil, "", nil, nil, err
		}

		if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info, f.JSONEncoder()); err != nil {
			return nil, "", nil, nil, err
		}

		obj, err = resource.NewHelper(client, mapping).Create(namespace, false, info.Object)
		if err != nil {
			return nil, "", nil, nil, err
		}
	}
	return obj, groupVersionKind.Kind, mapper, mapping, err
}
Beispiel #4
0
func RunPatch(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, shortOutput bool, options *PatchOptions) error {
	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	patch := cmdutil.GetFlagString(cmd, "patch")
	if len(patch) == 0 {
		return cmdutil.UsageError(cmd, "Must specify -p to patch")
	}
	patchBytes, err := yaml.ToJSON([]byte(patch))
	if err != nil {
		return fmt.Errorf("unable to parse %q: %v", patch, err)
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(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
	}
	if len(infos) > 1 {
		return fmt.Errorf("multiple resources provided")
	}
	info := infos[0]
	name, namespace := info.Name, info.Namespace
	mapping := info.ResourceMapping()
	client, err := f.ClientForMapping(mapping)
	if err != nil {
		return err
	}

	helper := resource.NewHelper(client, mapping)
	_, err = helper.Patch(namespace, name, api.StrategicMergePatchType, patchBytes)
	if err != nil {
		return err
	}
	cmdutil.PrintSuccess(mapper, shortOutput, out, "", name, "patched")
	return nil
}
Beispiel #5
0
// RunCreateSubcommand executes a create subcommand using the specified options
func RunCreateSubcommand(f cmdutil.Factory, cmd *cobra.Command, out io.Writer, options *CreateSubcommandOptions) error {
	namespace, _, err := f.DefaultNamespace()
	if err != nil {
		return err
	}
	obj, err := options.StructuredGenerator.StructuredGenerate()
	if err != nil {
		return err
	}
	mapper, typer := f.Object()
	gvks, _, err := typer.ObjectKinds(obj)
	if err != nil {
		return err
	}
	gvk := gvks[0]
	mapping, err := mapper.RESTMapping(schema.GroupKind{Group: gvk.Group, Kind: gvk.Kind}, gvk.Version)
	if err != nil {
		return err
	}
	client, err := f.ClientForMapping(mapping)
	if err != nil {
		return err
	}
	resourceMapper := &resource.Mapper{
		ObjectTyper:  typer,
		RESTMapper:   mapper,
		ClientMapper: resource.ClientMapperFunc(f.ClientForMapping),
	}
	info, err := resourceMapper.InfoForObject(obj, nil)
	if err != nil {
		return err
	}
	if err := kubectl.UpdateApplyAnnotation(info, f.JSONEncoder()); err != nil {
		return err
	}
	if !options.DryRun {
		obj, err = resource.NewHelper(client, mapping).Create(namespace, false, info.Object)
		if err != nil {
			return err
		}
	}

	if useShortOutput := options.OutputFormat == "name"; useShortOutput || len(options.OutputFormat) == 0 {
		cmdutil.PrintSuccess(mapper, useShortOutput, out, mapping.Resource, options.Name, options.DryRun, "created")
		return nil
	}

	return f.PrintObject(cmd, mapper, obj, out)
}
Beispiel #6
0
func RunPatch(f cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *PatchOptions) error {
	switch {
	case options.Local && len(args) != 0:
		return fmt.Errorf("cannot specify --local and server resources")
	}

	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	patchType := api.StrategicMergePatchType
	patchTypeString := strings.ToLower(cmdutil.GetFlagString(cmd, "type"))
	if len(patchTypeString) != 0 {
		ok := false
		patchType, ok = patchTypes[patchTypeString]
		if !ok {
			return cmdutil.UsageError(cmd, fmt.Sprintf("--type must be one of %v, not %q", sets.StringKeySet(patchTypes).List(), patchTypeString))
		}
	}

	patch := cmdutil.GetFlagString(cmd, "patch")
	if len(patch) == 0 {
		return cmdutil.UsageError(cmd, "Must specify -p to patch")
	}
	patchBytes, err := yaml.ToJSON([]byte(patch))
	if err != nil {
		return fmt.Errorf("unable to parse %q: %v", patch, err)
	}

	mapper, typer := f.Object()
	r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, &options.FilenameOptions).
		ResourceTypeOrNameArgs(false, args...).
		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
		}
		name, namespace := info.Name, info.Namespace
		mapping := info.ResourceMapping()
		client, err := f.ClientForMapping(mapping)
		if err != nil {
			return err
		}

		if !options.Local {
			helper := resource.NewHelper(client, mapping)
			_, err := helper.Patch(namespace, name, patchType, patchBytes)
			if err != nil {
				return err
			}
			if cmdutil.ShouldRecord(cmd, info) {
				// don't return an error on failure.  The patch itself succeeded, its only the hint for that change that failed
				// don't bother checking for failures of this replace, because a failure to indicate the hint doesn't fail the command
				// also, don't force the replacement.  If the replacement fails on a resourceVersion conflict, then it means this
				// record hint is likely to be invalid anyway, so avoid the bad hint
				patch, err := cmdutil.ChangeResourcePatch(info, f.Command())
				if err == nil {
					helper.Patch(info.Namespace, info.Name, api.StrategicMergePatchType, patch)
				}
			}
			count++

			if options.OutputFormat == "name" || len(options.OutputFormat) == 0 {
				cmdutil.PrintSuccess(mapper, options.OutputFormat == "name", out, "", name, false, "patched")
			}
			return nil
		}

		count++

		patchedObj, err := api.Scheme.DeepCopy(info.VersionedObject)
		if err != nil {
			return err
		}
		originalObjJS, err := runtime.Encode(api.Codecs.LegacyCodec(mapping.GroupVersionKind.GroupVersion()), info.VersionedObject.(runtime.Object))
		if err != nil {
			return err
		}
		originalPatchedObjJS, err := getPatchedJSON(patchType, originalObjJS, patchBytes, patchedObj.(runtime.Object))
		if err != nil {
			return err
		}
		targetObj, err := runtime.Decode(api.Codecs.UniversalDecoder(), originalPatchedObjJS)
		if err != nil {
			return err
		}
		// TODO: if we ever want to go generic, this allows a clean -o yaml without trying to print columns or anything
		// rawExtension := &runtime.Unknown{
		//	Raw: originalPatchedObjJS,
		// }

		printer, err := f.PrinterForMapping(cmd, mapping, false)
		if err != nil {
			return err
		}
		if err := printer.PrintObj(targetObj, out); err != nil {
			return err
		}

		return nil
	})
	if err != nil {
		return err
	}
	if count == 0 {
		return fmt.Errorf("no objects passed to patch")
	}
	return nil
}
Beispiel #7
0
func createGeneratedObject(f cmdutil.Factory, cmd *cobra.Command, generator kubectl.Generator, names []kubectl.GeneratorParam, params map[string]interface{}, overrides, namespace string) (runtime.Object, string, meta.RESTMapper, *meta.RESTMapping, error) {
	err := kubectl.ValidateParams(names, params)
	if err != nil {
		return nil, "", nil, nil, err
	}

	// TODO: Validate flag usage against selected generator. More tricky since --expose was added.
	obj, err := generator.Generate(params)
	if err != nil {
		return nil, "", nil, nil, err
	}

	mapper, typer := f.Object()
	groupVersionKinds, _, err := typer.ObjectKinds(obj)
	if err != nil {
		return nil, "", nil, nil, err
	}
	groupVersionKind := groupVersionKinds[0]

	if len(overrides) > 0 {
		codec := runtime.NewCodec(f.JSONEncoder(), f.Decoder(true))
		obj, err = cmdutil.Merge(codec, obj, overrides, groupVersionKind.Kind)
		if err != nil {
			return nil, "", nil, nil, err
		}
	}

	mapping, err := mapper.RESTMapping(groupVersionKind.GroupKind(), groupVersionKind.Version)
	if err != nil {
		return nil, "", nil, nil, err
	}
	client, err := f.ClientForMapping(mapping)
	if err != nil {
		return nil, "", nil, nil, err
	}

	annotations, err := mapping.MetadataAccessor.Annotations(obj)
	if err != nil {
		return nil, "", nil, nil, err
	}
	if cmdutil.GetRecordFlag(cmd) || len(annotations[kubectl.ChangeCauseAnnotation]) > 0 {
		if err := cmdutil.RecordChangeCause(obj, f.Command()); err != nil {
			return nil, "", nil, nil, err
		}
	}
	if !cmdutil.GetDryRunFlag(cmd) {
		resourceMapper := &resource.Mapper{
			ObjectTyper:  typer,
			RESTMapper:   mapper,
			ClientMapper: resource.ClientMapperFunc(f.ClientForMapping),
			Decoder:      f.Decoder(true),
		}
		info, err := resourceMapper.InfoForObject(obj, nil)
		if err != nil {
			return nil, "", nil, nil, err
		}

		if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info, f.JSONEncoder()); err != nil {
			return nil, "", nil, nil, err
		}

		obj, err = resource.NewHelper(client, mapping).Create(namespace, false, info.Object)
		if err != nil {
			return nil, "", nil, nil, err
		}
	}
	return obj, groupVersionKind.Kind, mapper, mapping, err
}
Beispiel #8
0
func RunLabel(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *LabelOptions) error {
	resources, labelArgs := []string{}, []string{}
	first := true
	for _, s := range args {
		isLabel := strings.Contains(s, "=") || strings.HasSuffix(s, "-")
		switch {
		case first && isLabel:
			first = false
			fallthrough
		case !first && isLabel:
			labelArgs = append(labelArgs, s)
		case first && !isLabel:
			resources = append(resources, s)
		case !first && !isLabel:
			return cmdutil.UsageError(cmd, "all resources must be specified before label changes: %s", s)
		}
	}
	if len(resources) < 1 && len(options.Filenames) == 0 {
		return cmdutil.UsageError(cmd, "one or more resources must be specified as <resource> <name> or <resource>/<name>")
	}
	if len(labelArgs) < 1 {
		return cmdutil.UsageError(cmd, "at least one label update is required")
	}

	selector := cmdutil.GetFlagString(cmd, "selector")
	all := cmdutil.GetFlagBool(cmd, "all")
	overwrite := cmdutil.GetFlagBool(cmd, "overwrite")
	resourceVersion := cmdutil.GetFlagString(cmd, "resource-version")

	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	lbls, remove, err := parseLabels(labelArgs)
	if err != nil {
		return cmdutil.UsageError(cmd, err.Error())
	}
	mapper, typer := f.Object()
	b := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, options.Filenames...).
		SelectorParam(selector).
		ResourceTypeOrNameArgs(all, resources...).
		Flatten().
		Latest()

	one := false
	r := b.Do().IntoSingular(&one)
	if err := r.Err(); err != nil {
		return err
	}

	// only apply resource version locking on a single resource
	if !one && len(resourceVersion) > 0 {
		return cmdutil.UsageError(cmd, "--resource-version may only be used with a single resource")
	}

	// TODO: support bulk generic output a la Get
	return r.Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}

		var outputObj runtime.Object
		dataChangeMsg := "not labeled"
		if cmdutil.GetFlagBool(cmd, "dry-run") {
			err = labelFunc(info.Object, overwrite, resourceVersion, lbls, remove)
			if err != nil {
				return err
			}
			outputObj = info.Object
		} else {
			obj, err := info.Mapping.ConvertToVersion(info.Object, info.Mapping.GroupVersionKind.GroupVersion().String())
			if err != nil {
				return err
			}
			name, namespace := info.Name, info.Namespace
			oldData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			meta, err := api.ObjectMetaFor(obj)
			for _, label := range remove {
				if _, ok := meta.Labels[label]; !ok {
					fmt.Fprintf(out, "label %q not found.\n", label)
				}
			}

			if err := labelFunc(obj, overwrite, resourceVersion, lbls, remove); err != nil {
				return err
			}
			if cmdutil.ShouldRecord(cmd, info) {
				if err := cmdutil.RecordChangeCause(obj, f.Command()); err != nil {
					return err
				}
			}
			newData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			if !reflect.DeepEqual(oldData, newData) {
				dataChangeMsg = "labeled"
			}
			patchBytes, err := strategicpatch.CreateTwoWayMergePatch(oldData, newData, obj)
			createdPatch := err == nil
			if err != nil {
				glog.V(2).Infof("couldn't compute patch: %v", err)
			}

			mapping := info.ResourceMapping()
			client, err := f.ClientForMapping(mapping)
			if err != nil {
				return err
			}
			helper := resource.NewHelper(client, mapping)

			if createdPatch {
				outputObj, err = helper.Patch(namespace, name, api.StrategicMergePatchType, patchBytes)
			} else {
				outputObj, err = helper.Replace(namespace, name, false, obj)
			}
			if err != nil {
				return err
			}
		}
		outputFormat := cmdutil.GetFlagString(cmd, "output")
		if outputFormat != "" {
			return f.PrintObject(cmd, outputObj, out)
		}
		cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, dataChangeMsg)
		return nil
	})
}
Beispiel #9
0
// RunAnnotate does the work
func (o AnnotateOptions) RunAnnotate(f cmdutil.Factory, cmd *cobra.Command) error {
	namespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	changeCause := f.Command()
	mapper, typer := f.Object()
	b := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
		ContinueOnError().
		NamespaceParam(namespace).DefaultNamespace().
		FilenameParam(enforceNamespace, &o.FilenameOptions).
		Flatten()

	if !o.local {
		b = b.SelectorParam(o.selector).
			ResourceTypeOrNameArgs(o.all, o.resources...).
			Latest()
	}
	r := b.Do()
	if err := r.Err(); err != nil {
		return err
	}

	var singularResource bool
	r.IntoSingular(&singularResource)

	// only apply resource version locking on a single resource.
	// we must perform this check after o.builder.Do() as
	// []o.resources can not not accurately return the proper number
	// of resources when they are not passed in "resource/name" format.
	if !singularResource && len(o.resourceVersion) > 0 {
		return fmt.Errorf("--resource-version may only be used with a single resource")
	}

	return r.Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}

		var outputObj runtime.Object
		obj, err := cmdutil.MaybeConvertObject(info.Object, info.Mapping.GroupVersionKind.GroupVersion(), info.Mapping)
		if err != nil {
			return err
		}
		if o.dryrun || o.local {
			if err := o.updateAnnotations(obj); err != nil {
				return err
			}
			outputObj = obj
		} else {
			name, namespace := info.Name, info.Namespace
			oldData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			// If we should record change-cause, add it to new annotations
			if cmdutil.ContainsChangeCause(info) || o.recordChangeCause {
				o.newAnnotations[kubectl.ChangeCauseAnnotation] = changeCause
			}
			if err := o.updateAnnotations(obj); err != nil {
				return err
			}
			newData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			patchBytes, err := strategicpatch.CreateTwoWayMergePatch(oldData, newData, obj)
			createdPatch := err == nil
			if err != nil {
				glog.V(2).Infof("couldn't compute patch: %v", err)
			}

			mapping := info.ResourceMapping()
			client, err := f.ClientForMapping(mapping)
			if err != nil {
				return err
			}
			helper := resource.NewHelper(client, mapping)

			if createdPatch {
				outputObj, err = helper.Patch(namespace, name, api.StrategicMergePatchType, patchBytes)
			} else {
				outputObj, err = helper.Replace(namespace, name, false, obj)
			}
			if err != nil {
				return err
			}
		}
		if o.outputFormat != "" {
			return f.PrintObject(cmd, mapper, outputObj, o.out)
		}
		cmdutil.PrintSuccess(mapper, false, o.out, info.Mapping.Resource, info.Name, o.dryrun, "annotated")
		return nil
	})
}
Beispiel #10
0
// 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
}
Beispiel #11
0
func RunPatch(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, shortOutput bool, options *PatchOptions) error {
	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	patchType := api.StrategicMergePatchType
	patchTypeString := strings.ToLower(cmdutil.GetFlagString(cmd, "type"))
	if len(patchTypeString) != 0 {
		ok := false
		patchType, ok = patchTypes[patchTypeString]
		if !ok {
			return cmdutil.UsageError(cmd, fmt.Sprintf("--type must be one of %v, not %q", sets.StringKeySet(patchTypes).List(), patchTypeString))
		}
	}

	patch := cmdutil.GetFlagString(cmd, "patch")
	if len(patch) == 0 {
		return cmdutil.UsageError(cmd, "Must specify -p to patch")
	}
	patchBytes, err := yaml.ToJSON([]byte(patch))
	if err != nil {
		return fmt.Errorf("unable to parse %q: %v", patch, err)
	}

	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...).
		ResourceTypeOrNameArgs(false, args...).
		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
		}
		name, namespace := info.Name, info.Namespace
		mapping := info.ResourceMapping()
		client, err := f.ClientForMapping(mapping)
		if err != nil {
			return err
		}

		helper := resource.NewHelper(client, mapping)
		patchedObject, err := helper.Patch(namespace, name, patchType, patchBytes)
		if err != nil {
			return err
		}
		if cmdutil.ShouldRecord(cmd, info) {
			if err := cmdutil.RecordChangeCause(patchedObject, f.Command()); err == nil {
				// don't return an error on failure.  The patch itself succeeded, its only the hint for that change that failed
				// don't bother checking for failures of this replace, because a failure to indicate the hint doesn't fail the command
				// also, don't force the replacement.  If the replacement fails on a resourceVersion conflict, then it means this
				// record hint is likely to be invalid anyway, so avoid the bad hint
				resource.NewHelper(client, mapping).Replace(namespace, name, false, patchedObject)
			}
		}
		count++
		cmdutil.PrintSuccess(mapper, shortOutput, out, "", name, "patched")
		return nil
	})
	if err != nil {
		return err
	}
	if count == 0 {
		return fmt.Errorf("no objects passed to patch")
	}
	return nil
}
// RunLabel does the work
func (o *LabelOptions) RunLabel(f cmdutil.Factory, cmd *cobra.Command) error {
	cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	changeCause := f.Command()
	mapper, typer := f.Object()
	b := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, &o.FilenameOptions).
		Flatten()

	if !o.local {
		b = b.SelectorParam(o.selector).
			ResourceTypeOrNameArgs(o.all, o.resources...).
			Latest()
	}
	one := false
	r := b.Do().IntoSingular(&one)
	if err := r.Err(); err != nil {
		return err
	}

	smPatchVersion := strategicpatch.SMPatchVersionLatest
	if !o.local {
		smPatchVersion, err = cmdutil.GetServerSupportedSMPatchVersionFromFactory(f)
		if err != nil {
			return err
		}
	}

	// only apply resource version locking on a single resource
	if !one && len(o.resourceVersion) > 0 {
		return fmt.Errorf("--resource-version may only be used with a single resource")
	}

	// TODO: support bulk generic output a la Get
	return r.Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}

		var outputObj runtime.Object
		dataChangeMsg := "not labeled"
		if o.dryrun || o.local {
			err = labelFunc(info.Object, o.overwrite, o.resourceVersion, o.newLabels, o.removeLabels)
			if err != nil {
				return err
			}
			outputObj = info.Object
		} else {
			obj, err := cmdutil.MaybeConvertObject(info.Object, info.Mapping.GroupVersionKind.GroupVersion(), info.Mapping)
			if err != nil {
				return err
			}
			name, namespace := info.Name, info.Namespace
			oldData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			accessor, err := meta.Accessor(obj)
			if err != nil {
				return err
			}
			for _, label := range o.removeLabels {
				if _, ok := accessor.GetLabels()[label]; !ok {
					fmt.Fprintf(o.out, "label %q not found.\n", label)
				}
			}

			if err := labelFunc(obj, o.overwrite, o.resourceVersion, o.newLabels, o.removeLabels); err != nil {
				return err
			}
			if cmdutil.ShouldRecord(cmd, info) {
				if err := cmdutil.RecordChangeCause(obj, changeCause); err != nil {
					return err
				}
			}
			newData, err := json.Marshal(obj)
			if err != nil {
				return err
			}
			if !reflect.DeepEqual(oldData, newData) {
				dataChangeMsg = "labeled"
			}
			patchBytes, err := strategicpatch.CreateTwoWayMergePatch(oldData, newData, obj, smPatchVersion)
			createdPatch := err == nil
			if err != nil {
				glog.V(2).Infof("couldn't compute patch: %v", err)
			}

			mapping := info.ResourceMapping()
			client, err := f.ClientForMapping(mapping)
			if err != nil {
				return err
			}
			helper := resource.NewHelper(client, mapping)

			if createdPatch {
				outputObj, err = helper.Patch(namespace, name, api.StrategicMergePatchType, patchBytes)
			} else {
				outputObj, err = helper.Replace(namespace, name, false, obj)
			}
			if err != nil {
				return err
			}
		}
		if o.outputFormat != "" {
			return f.PrintObject(cmd, mapper, outputObj, o.out)
		}
		cmdutil.PrintSuccess(mapper, false, o.out, info.Mapping.Resource, info.Name, o.dryrun, dataChangeMsg)
		return nil
	})
}