コード例 #1
0
ファイル: rollout_undo.go プロジェクト: kubernetes/kubernetes
func NewCmdRolloutUndo(f cmdutil.Factory, out io.Writer) *cobra.Command {
	options := &UndoOptions{}

	validArgs := []string{"deployment"}
	argAliases := kubectl.ResourceAliases(validArgs)

	cmd := &cobra.Command{
		Use:     "undo (TYPE NAME | TYPE/NAME) [flags]",
		Short:   "Undo a previous rollout",
		Long:    undo_long,
		Example: undo_example,
		Run: func(cmd *cobra.Command, args []string) {
			allErrs := []error{}
			err := options.CompleteUndo(f, cmd, out, args)
			if err != nil {
				allErrs = append(allErrs, err)
			}
			err = options.RunUndo()
			if err != nil {
				allErrs = append(allErrs, err)
			}
			cmdutil.CheckErr(utilerrors.Flatten(utilerrors.NewAggregate(allErrs)))
		},
		ValidArgs:  validArgs,
		ArgAliases: argAliases,
	}

	cmd.Flags().Int64("to-revision", 0, "The revision to rollback to. Default to 0 (last revision).")
	usage := "identifying the resource to get from a server."
	cmdutil.AddFilenameOptionFlags(cmd, &options.FilenameOptions, usage)
	cmdutil.AddDryRunFlag(cmd)
	return cmd
}
コード例 #2
0
func NewCmdRolloutResume(f cmdutil.Factory, out io.Writer) *cobra.Command {
	options := &ResumeConfig{}

	validArgs := []string{"deployment"}
	argAliases := kubectl.ResourceAliases(validArgs)

	cmd := &cobra.Command{
		Use:     "resume RESOURCE",
		Short:   "Resume a paused resource",
		Long:    resume_long,
		Example: resume_example,
		Run: func(cmd *cobra.Command, args []string) {
			allErrs := []error{}
			err := options.CompleteResume(f, cmd, out, args)
			if err != nil {
				allErrs = append(allErrs, err)
			}
			err = options.RunResume()
			if err != nil {
				allErrs = append(allErrs, err)
			}
			cmdutil.CheckErr(utilerrors.Flatten(utilerrors.NewAggregate(allErrs)))
		},
		ValidArgs:  validArgs,
		ArgAliases: argAliases,
	}

	usage := "identifying the resource to get from a server."
	cmdutil.AddFilenameOptionFlags(cmd, &options.FilenameOptions, usage)
	return cmd
}
コード例 #3
0
ファイル: helpers.go プロジェクト: kubernetes/kubernetes
// MultilineError returns a string representing an error that splits sub errors into their own
// lines. The returned string will end with a newline.
func MultilineError(prefix string, err error) string {
	if agg, ok := err.(utilerrors.Aggregate); ok {
		errs := utilerrors.Flatten(agg).Errors()
		buf := &bytes.Buffer{}
		switch len(errs) {
		case 0:
			return fmt.Sprintf("%s%v\n", prefix, err)
		case 1:
			return fmt.Sprintf("%s%v\n", prefix, messageForError(errs[0]))
		default:
			fmt.Fprintln(buf, prefix)
			for _, err := range errs {
				fmt.Fprintf(buf, "* %v\n", messageForError(err))
			}
			return buf.String()
		}
	}
	return fmt.Sprintf("%s%s\n", prefix, err)
}
コード例 #4
0
func (c *ServiceAccountsController) syncNamespace(key string) error {
	startTime := time.Now()
	defer func() {
		glog.V(4).Infof("Finished syncing namespace %q (%v)", key, time.Now().Sub(startTime))
	}()

	ns, err := c.nsLister.Get(key)
	if apierrs.IsNotFound(err) {
		return nil
	}
	if err != nil {
		return err
	}
	if ns.Status.Phase != v1.NamespaceActive {
		// If namespace is not active, we shouldn't try to create anything
		return nil
	}

	createFailures := []error{}
	for i := range c.serviceAccountsToEnsure {
		sa := c.serviceAccountsToEnsure[i]
		switch _, err := c.saLister.ServiceAccounts(ns.Name).Get(sa.Name); {
		case err == nil:
			continue
		case apierrs.IsNotFound(err):
		case err != nil:
			return err
		}
		// this is only safe because we never read it and we always write it
		// TODO eliminate this once the fake client can handle creation without NS
		sa.Namespace = ns.Name

		if _, err := c.client.Core().ServiceAccounts(ns.Name).Create(&sa); err != nil && !apierrs.IsAlreadyExists(err) {
			createFailures = append(createFailures, err)
		}
	}

	return utilerrors.Flatten(utilerrors.NewAggregate(createFailures))
}
コード例 #5
0
ファイル: get.go プロジェクト: kubernetes/kubernetes
// RunGet implements the generic Get command
// TODO: convert all direct flag accessors to a struct and pass that instead of cmd
func RunGet(f cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, args []string, options *GetOptions) error {
	if len(options.Raw) > 0 {
		restClient, err := f.RESTClient()
		if err != nil {
			return err
		}

		stream, err := restClient.Get().RequestURI(options.Raw).Stream()
		if err != nil {
			return err
		}
		defer stream.Close()

		_, err = io.Copy(out, stream)
		if err != nil && err != io.EOF {
			return err
		}
		return nil
	}

	selector := cmdutil.GetFlagString(cmd, "selector")
	allNamespaces := cmdutil.GetFlagBool(cmd, "all-namespaces")
	showKind := cmdutil.GetFlagBool(cmd, "show-kind")
	mapper, typer, err := f.UnstructuredObject()
	if err != nil {
		return err
	}
	filterFuncs := f.DefaultResourceFilterFunc()
	filterOpts := f.DefaultResourceFilterOptions(cmd, allNamespaces)

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

	if allNamespaces {
		enforceNamespace = false
	}

	if len(args) == 0 && cmdutil.IsFilenameEmpty(options.Filenames) {
		fmt.Fprint(errOut, "You must specify the type of resource to get. ", valid_resources)

		fullCmdName := cmd.Parent().CommandPath()
		usageString := "Required resource not specified."
		if len(fullCmdName) > 0 && cmdutil.IsSiblingCommandExists(cmd, "explain") {
			usageString = fmt.Sprintf("%s\nUse \"%s explain <resource>\" for a detailed description of that resource (e.g. %[2]s explain pods).", usageString, fullCmdName)
		}

		return cmdutil.UsageError(cmd, usageString)
	}

	argsHasNames, err := resource.HasNames(args)
	if err != nil {
		return err
	}

	// always show resources when getting by name or filename, or if the output
	// is machine-consumable, or if multiple resource kinds were requested.
	if len(options.Filenames) > 0 || argsHasNames || cmdutil.OutputsRawFormat(cmd) {
		if !cmd.Flag("show-all").Changed {
			cmd.Flag("show-all").Value.Set("true")
		}
	}
	export := cmdutil.GetFlagBool(cmd, "export")

	// handle watch separately since we cannot watch multiple resource types
	isWatch, isWatchOnly := cmdutil.GetFlagBool(cmd, "watch"), cmdutil.GetFlagBool(cmd, "watch-only")
	if isWatch || isWatchOnly {
		r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.UnstructuredClientForMapping), unstructured.UnstructuredJSONScheme).
			NamespaceParam(cmdNamespace).DefaultNamespace().AllNamespaces(allNamespaces).
			FilenameParam(enforceNamespace, &options.FilenameOptions).
			SelectorParam(selector).
			ExportParam(export).
			ResourceTypeOrNameArgs(true, args...).
			SingleResourceType().
			Latest().
			Do()
		err := r.Err()
		if err != nil {
			return err
		}
		infos, err := r.Infos()
		if err != nil {
			return err
		}
		if len(infos) != 1 {
			return i18n.Errorf("watch is only supported on individual resources and resource collections - %d resources were found", len(infos))
		}
		info := infos[0]
		mapping := info.ResourceMapping()
		printer, err := f.PrinterForMapping(cmd, mapping, allNamespaces)
		if err != nil {
			return err
		}
		obj, err := r.Object()
		if err != nil {
			return err
		}

		// watching from resourceVersion 0, starts the watch at ~now and
		// will return an initial watch event.  Starting form ~now, rather
		// the rv of the object will insure that we start the watch from
		// inside the watch window, which the rv of the object might not be.
		rv := "0"
		isList := meta.IsListType(obj)
		if isList {
			// the resourceVersion of list objects is ~now but won't return
			// an initial watch event
			rv, err = mapping.MetadataAccessor.ResourceVersion(obj)
			if err != nil {
				return err
			}
		}

		// print the current object
		filteredResourceCount := 0
		if !isWatchOnly {
			if err := printer.PrintObj(obj, out); err != nil {
				return fmt.Errorf("unable to output the provided object: %v", err)
			}
			filteredResourceCount++
			cmdutil.PrintFilterCount(filteredResourceCount, mapping.Resource, filterOpts)
		}

		// print watched changes
		w, err := r.Watch(rv)
		if err != nil {
			return err
		}

		first := true
		filteredResourceCount = 0
		intr := interrupt.New(nil, w.Stop)
		intr.Run(func() error {
			_, err := watch.Until(0, w, func(e watch.Event) (bool, error) {
				if !isList && first {
					// drop the initial watch event in the single resource case
					first = false
					return false, nil
				}
				err := printer.PrintObj(e.Object, out)
				if err != nil {
					return false, err
				}
				filteredResourceCount++
				cmdutil.PrintFilterCount(filteredResourceCount, mapping.Resource, filterOpts)
				return false, nil
			})
			return err
		})
		return nil
	}

	r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.UnstructuredClientForMapping), unstructured.UnstructuredJSONScheme).
		NamespaceParam(cmdNamespace).DefaultNamespace().AllNamespaces(allNamespaces).
		FilenameParam(enforceNamespace, &options.FilenameOptions).
		SelectorParam(selector).
		ExportParam(export).
		ResourceTypeOrNameArgs(true, args...).
		ContinueOnError().
		Latest().
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	printer, generic, err := cmdutil.PrinterForCommand(cmd)
	if err != nil {
		return err
	}

	if generic {
		// we flattened the data from the builder, so we have individual items, but now we'd like to either:
		// 1. if there is more than one item, combine them all into a single list
		// 2. if there is a single item and that item is a list, leave it as its specific list
		// 3. if there is a single item and it is not a a list, leave it as a single item
		var errs []error
		singleItemImplied := false
		infos, err := r.IntoSingleItemImplied(&singleItemImplied).Infos()
		if err != nil {
			if singleItemImplied {
				return err
			}
			errs = append(errs, err)
		}
		if len(infos) == 0 && len(errs) == 0 {
			outputEmptyListWarning(errOut)
		}

		res := ""
		if len(infos) > 0 {
			res = infos[0].ResourceMapping().Resource
		}

		var obj runtime.Object
		if !singleItemImplied || len(infos) > 1 {
			// we have more than one item, so coerce all items into a list
			list := &unstructured.UnstructuredList{
				Object: map[string]interface{}{
					"kind":       "List",
					"apiVersion": "v1",
					"metadata":   map[string]interface{}{},
				},
			}
			for _, info := range infos {
				list.Items = append(list.Items, info.Object.(*unstructured.Unstructured))
			}
			obj = list
		} else {
			obj = infos[0].Object
		}

		isList := meta.IsListType(obj)
		if isList {
			filteredResourceCount, items, err := cmdutil.FilterResourceList(obj, filterFuncs, filterOpts)
			if err != nil {
				return err
			}

			// take the filtered items and create a new list for display
			list := &unstructured.UnstructuredList{
				Object: map[string]interface{}{
					"kind":       "List",
					"apiVersion": "v1",
					"metadata":   map[string]interface{}{},
				},
			}
			if listMeta, err := meta.ListAccessor(obj); err == nil {
				list.Object["selfLink"] = listMeta.GetSelfLink()
				list.Object["resourceVersion"] = listMeta.GetResourceVersion()
			}

			for _, item := range items {
				list.Items = append(list.Items, item.(*unstructured.Unstructured))
			}
			if err := printer.PrintObj(list, out); err != nil {
				errs = append(errs, err)
			}

			cmdutil.PrintFilterCount(filteredResourceCount, res, filterOpts)
			return utilerrors.Reduce(utilerrors.Flatten(utilerrors.NewAggregate(errs)))
		}

		filteredResourceCount := 0
		if isFiltered, err := filterFuncs.Filter(obj, filterOpts); !isFiltered {
			if err != nil {
				glog.V(2).Infof("Unable to filter resource: %v", err)
			} else if err := printer.PrintObj(obj, out); err != nil {
				errs = append(errs, err)
			}
		} else if isFiltered {
			filteredResourceCount++
		}

		cmdutil.PrintFilterCount(filteredResourceCount, res, filterOpts)
		return utilerrors.Reduce(utilerrors.Flatten(utilerrors.NewAggregate(errs)))
	}

	allErrs := []error{}
	errs := sets.NewString()
	infos, err := r.Infos()
	if err != nil {
		allErrs = append(allErrs, err)
	}
	if len(infos) == 0 && len(allErrs) == 0 {
		outputEmptyListWarning(errOut)
	}

	objs := make([]runtime.Object, len(infos))
	for ix := range infos {
		objs[ix] = infos[ix].Object
	}

	sorting, err := cmd.Flags().GetString("sort-by")
	if err != nil {
		return err
	}
	var sorter *kubectl.RuntimeSort
	if len(sorting) > 0 && len(objs) > 1 {
		// TODO: questionable
		if sorter, err = kubectl.SortObjects(f.Decoder(true), objs, sorting); err != nil {
			return err
		}
	}

	// use the default printer for each object
	printer = nil
	var lastMapping *meta.RESTMapping
	w := kubectl.GetNewTabWriter(out)
	filteredResourceCount := 0

	if resource.MultipleTypesRequested(args) || cmdutil.MustPrintWithKinds(objs, infos, sorter) {
		showKind = true
	}

	for ix := range objs {
		var mapping *meta.RESTMapping
		var original runtime.Object
		if sorter != nil {
			mapping = infos[sorter.OriginalPosition(ix)].Mapping
			original = infos[sorter.OriginalPosition(ix)].Object
		} else {
			mapping = infos[ix].Mapping
			original = infos[ix].Object
		}
		if printer == nil || lastMapping == nil || mapping == nil || mapping.Resource != lastMapping.Resource {
			if printer != nil {
				w.Flush()
				cmdutil.PrintFilterCount(filteredResourceCount, lastMapping.Resource, filterOpts)
			}
			printer, err = f.PrinterForMapping(cmd, mapping, allNamespaces)
			if err != nil {
				if !errs.Has(err.Error()) {
					errs.Insert(err.Error())
					allErrs = append(allErrs, err)
				}
				continue
			}

			// add linebreak between resource groups (if there is more than one)
			// skip linebreak above first resource group
			noHeaders := cmdutil.GetFlagBool(cmd, "no-headers")
			if lastMapping != nil && !noHeaders {
				fmt.Fprintf(errOut, "%s\n", "")
			}

			lastMapping = mapping
		}

		// try to convert before apply filter func
		decodedObj, _ := kubectl.DecodeUnknownObject(original)

		// filter objects if filter has been defined for current object
		if isFiltered, err := filterFuncs.Filter(decodedObj, filterOpts); isFiltered {
			if err == nil {
				filteredResourceCount++
				continue
			}
			if !errs.Has(err.Error()) {
				errs.Insert(err.Error())
				allErrs = append(allErrs, err)
			}
		}

		if resourcePrinter, found := printer.(*kubectl.HumanReadablePrinter); found {
			resourceName := resourcePrinter.GetResourceKind()
			if mapping != nil {
				if resourceName == "" {
					resourceName = mapping.Resource
				}
				if alias, ok := kubectl.ResourceShortFormFor(mapping.Resource); ok {
					resourceName = alias
				} else if resourceName == "" {
					resourceName = "none"
				}
			} else {
				resourceName = "none"
			}

			if showKind {
				resourcePrinter.EnsurePrintWithKind(resourceName)
			}

			if err := printer.PrintObj(decodedObj, w); err != nil {
				if !errs.Has(err.Error()) {
					errs.Insert(err.Error())
					allErrs = append(allErrs, err)
				}
			}
			continue
		}
		if err := printer.PrintObj(decodedObj, w); err != nil {
			if !errs.Has(err.Error()) {
				errs.Insert(err.Error())
				allErrs = append(allErrs, err)
			}
			continue
		}
	}
	w.Flush()
	if printer != nil && lastMapping != nil {
		cmdutil.PrintFilterCount(filteredResourceCount, lastMapping.Resource, filterOpts)
	}
	return utilerrors.NewAggregate(allErrs)
}
コード例 #6
0
// EnsureLoadBalancer creates a new load balancer 'name', or updates the existing one. Returns the status of the balancer
func (az *Cloud) EnsureLoadBalancer(clusterName string, service *v1.Service, nodes []*v1.Node) (*v1.LoadBalancerStatus, error) {
	lbName := getLoadBalancerName(clusterName)
	pipName := getPublicIPName(clusterName, service)
	serviceName := getServiceName(service)
	glog.V(2).Infof("ensure(%s): START clusterName=%q lbName=%q", serviceName, clusterName, lbName)

	pip, err := az.ensurePublicIPExists(serviceName, pipName)
	if err != nil {
		return nil, err
	}

	sg, err := az.SecurityGroupsClient.Get(az.ResourceGroup, az.SecurityGroupName, "")
	if err != nil {
		return nil, err
	}
	sg, sgNeedsUpdate, err := az.reconcileSecurityGroup(sg, clusterName, service)
	if err != nil {
		return nil, err
	}
	if sgNeedsUpdate {
		glog.V(3).Infof("ensure(%s): sg(%s) - updating", serviceName, *sg.Name)
		_, err := az.SecurityGroupsClient.CreateOrUpdate(az.ResourceGroup, *sg.Name, sg, nil)
		if err != nil {
			return nil, err
		}
	}

	lb, existsLb, err := az.getAzureLoadBalancer(lbName)
	if err != nil {
		return nil, err
	}
	if !existsLb {
		lb = network.LoadBalancer{
			Name:                         &lbName,
			Location:                     &az.Location,
			LoadBalancerPropertiesFormat: &network.LoadBalancerPropertiesFormat{},
		}
	}

	lb, lbNeedsUpdate, err := az.reconcileLoadBalancer(lb, pip, clusterName, service, nodes)
	if err != nil {
		return nil, err
	}
	if !existsLb || lbNeedsUpdate {
		glog.V(3).Infof("ensure(%s): lb(%s) - updating", serviceName, lbName)
		_, err = az.LoadBalancerClient.CreateOrUpdate(az.ResourceGroup, *lb.Name, lb, nil)
		if err != nil {
			return nil, err
		}
	}

	// Add the machines to the backend pool if they're not already
	lbBackendName := getBackendPoolName(clusterName)
	lbBackendPoolID := az.getBackendPoolID(lbName, lbBackendName)
	hostUpdates := make([]func() error, len(nodes))
	for i, node := range nodes {
		localNodeName := node.Name
		f := func() error {
			err := az.ensureHostInPool(serviceName, types.NodeName(localNodeName), lbBackendPoolID)
			if err != nil {
				return fmt.Errorf("ensure(%s): lb(%s) - failed to ensure host in pool: %q", serviceName, lbName, err)
			}
			return nil
		}
		hostUpdates[i] = f
	}

	errs := utilerrors.AggregateGoroutines(hostUpdates...)
	if errs != nil {
		return nil, utilerrors.Flatten(errs)
	}

	glog.V(2).Infof("ensure(%s): FINISH - %s", serviceName, *pip.IPAddress)
	return &v1.LoadBalancerStatus{
		Ingress: []v1.LoadBalancerIngress{{IP: *pip.IPAddress}},
	}, nil
}