Ejemplo n.º 1
0
// RunCordonOrUncordon runs either Cordon or Uncordon.  The desired value for
// "Unschedulable" is passed as the first arg.
func (o *DrainOptions) RunCordonOrUncordon(desired bool) error {
	cmdNamespace, _, err := o.factory.DefaultNamespace()
	if err != nil {
		return err
	}

	if o.nodeInfo.Mapping.GroupVersionKind.Kind == "Node" {
		unsched := reflect.ValueOf(o.nodeInfo.Object).Elem().FieldByName("Spec").FieldByName("Unschedulable")
		if unsched.Bool() == desired {
			cmdutil.PrintSuccess(o.mapper, false, o.out, o.nodeInfo.Mapping.Resource, o.nodeInfo.Name, already(desired))
		} else {
			helper := resource.NewHelper(o.client, o.nodeInfo.Mapping)
			unsched.SetBool(desired)
			_, err := helper.Replace(cmdNamespace, o.nodeInfo.Name, true, o.nodeInfo.Object)
			if err != nil {
				return err
			}
			cmdutil.PrintSuccess(o.mapper, false, o.out, o.nodeInfo.Mapping.Resource, o.nodeInfo.Name, changed(desired))
		}
	} else {
		cmdutil.PrintSuccess(o.mapper, false, o.out, o.nodeInfo.Mapping.Resource, o.nodeInfo.Name, "skipped")
	}

	return nil
}
Ejemplo n.º 2
0
func deleteResource(info *resource.Info, out io.Writer, shortOutput bool, mapper meta.RESTMapper) error {
	if err := resource.NewHelper(info.Client, info.Mapping).Delete(info.Namespace, info.Name); err != nil {
		return cmdutil.AddSourceToErr("deleting", info.Source, err)
	}
	cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "deleted")
	return nil
}
Ejemplo n.º 3
0
// 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
	}

	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
	}

	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, "scaled")
		return nil
	})
	if err != nil {
		return err
	}
	if counter == 0 {
		return fmt.Errorf("no objects passed to scale")
	}
	return nil
}
Ejemplo n.º 4
0
func RunApply(f *cmdutil.Factory, cmd *cobra.Command, out io.Writer, options *ApplyOptions) error {
	shortOutput := cmdutil.GetFlagString(cmd, "output") == "name"
	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
	}

	mapper, typer := f.Object(cmdutil.GetIncludeThirdPartyAPIs(cmd))
	r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
		Schema(schema).
		ContinueOnError().
		NamespaceParam(cmdNamespace).DefaultNamespace().
		FilenameParam(enforceNamespace, options.Recursive, options.Filenames...).
		Flatten().
		Do()
	err = r.Err()
	if err != nil {
		return err
	}

	encoder := f.JSONEncoder()
	decoder := f.Decoder(false)

	count := 0
	err = r.Visit(func(info *resource.Info, err error) error {
		// In this method, info.Object contains the object retrieved from the server
		// and info.VersionedObject contains the object decoded from the input source.
		if err != nil {
			return err
		}

		// Get the modified configuration of the object. Embed the result
		// as an annotation in the modified configuration, so that it will appear
		// in the patch sent to the server.
		modified, err := kubectl.GetModifiedConfiguration(info, true, encoder)
		if err != nil {
			return cmdutil.AddSourceToErr(fmt.Sprintf("retrieving modified configuration from:\n%v\nfor:", info), info.Source, err)
		}

		if err := info.Get(); err != nil {
			if !errors.IsNotFound(err) {
				return cmdutil.AddSourceToErr(fmt.Sprintf("retrieving current configuration of:\n%v\nfrom server for:", info), info.Source, err)
			}
			// Create the resource if it doesn't exist
			// First, update the annotation used by kubectl apply
			if err := kubectl.CreateApplyAnnotation(info, encoder); err != nil {
				return cmdutil.AddSourceToErr("creating", info.Source, err)
			}

			if cmdutil.ShouldRecord(cmd, info) {
				if err := cmdutil.RecordChangeCause(info.Object, f.Command()); err != nil {
					return cmdutil.AddSourceToErr("creating", info.Source, err)
				}
			}

			// Then create the resource and skip the three-way merge
			if err := createAndRefresh(info); err != nil {
				return cmdutil.AddSourceToErr("creating", info.Source, err)
			}
			count++
			cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "created")
			return nil
		}

		helper := resource.NewHelper(info.Client, info.Mapping)
		patcher := NewPatcher(encoder, decoder, info.Mapping, helper)

		patchBytes, err := patcher.patch(info.Object, modified, info.Source, info.Namespace, info.Name)
		if err != nil {
			return cmdutil.AddSourceToErr(fmt.Sprintf("applying patch:\n%s\nto:\n%v\nfor:", patchBytes, info), info.Source, err)
		}

		if cmdutil.ShouldRecord(cmd, info) {
			patch, err := cmdutil.ChangeResourcePatch(info, f.Command())
			if err != nil {
				return err
			}
			_, err = helper.Patch(info.Namespace, info.Name, api.StrategicMergePatchType, patch)
			if err != nil {
				return cmdutil.AddSourceToErr(fmt.Sprintf("applying patch:\n%s\nto:\n%v\nfor:", patch, info), info.Source, err)
			}
		}

		count++
		cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "configured")
		return nil
	})

	if err != nil {
		return err
	}

	if count == 0 {
		return fmt.Errorf("no objects passed to apply")
	}

	return nil
}
Ejemplo n.º 5
0
func (o *ImageOptions) Run() error {
	allErrs := []error{}

	patches := CalculatePatches(o.Infos, o.Encoder, func(info *resource.Info) (bool, error) {
		transformed := false
		_, err := o.UpdatePodSpecForObject(info.Object, func(spec *api.PodSpec) error {
			for name, image := range o.ContainerImages {
				containerFound := false
				// Find the container to update, and update its image
				for i, c := range spec.Containers {
					if c.Name == name || name == "*" {
						spec.Containers[i].Image = image
						containerFound = true
						// Perform updates
						transformed = true
					}
				}
				// Add a new container if not found
				if !containerFound {
					allErrs = append(allErrs, fmt.Errorf("error: unable to find container named %q", name))
				}
			}
			return nil
		})
		return transformed, err
	})

	for _, patch := range patches {
		info := patch.Info
		if patch.Err != nil {
			allErrs = append(allErrs, fmt.Errorf("error: %s/%s %v\n", info.Mapping.Resource, info.Name, patch.Err))
			continue
		}

		// no changes
		if string(patch.Patch) == "{}" || len(patch.Patch) == 0 {
			continue
		}

		if o.Local {
			fmt.Fprintln(o.Out, "running in local mode...")
			return o.PrintObject(o.Cmd, o.Mapper, info.Object, o.Out)
		}

		// patch the change
		obj, err := resource.NewHelper(info.Client, info.Mapping).Patch(info.Namespace, info.Name, api.StrategicMergePatchType, patch.Patch)
		if err != nil {
			allErrs = append(allErrs, fmt.Errorf("failed to patch image update to pod template: %v\n", err))
			continue
		}
		info.Refresh(obj, true)

		// record this change (for rollout history)
		if o.Record || cmdutil.ContainsChangeCause(info) {
			if err := cmdutil.RecordChangeCause(obj, o.ChangeCause); err == nil {
				if obj, err = resource.NewHelper(info.Client, info.Mapping).Replace(info.Namespace, info.Name, false, obj); err != nil {
					allErrs = append(allErrs, fmt.Errorf("changes to %s/%s can't be recorded: %v\n", info.Mapping.Resource, info.Name, err))
				}
			}
		}

		info.Refresh(obj, true)
		cmdutil.PrintSuccess(o.Mapper, o.ShortOutput, o.Out, info.Mapping.Resource, info.Name, "image updated")
	}
	return utilerrors.NewAggregate(allErrs)
}
Ejemplo n.º 6
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(cmdutil.GetIncludeThirdPartyAPIs(cmd))
	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
}