Beispiel #1
0
func (p *patcher) patchSimple(obj runtime.Object, modified []byte, source, namespace, name string) ([]byte, error) {
	// Serialize the current configuration of the object from the server.
	current, err := runtime.Encode(p.encoder, obj)
	if err != nil {
		return nil, cmdutil.AddSourceToErr(fmt.Sprintf("serializing current configuration from:\n%v\nfor:", obj), source, err)
	}

	// Retrieve the original configuration of the object from the annotation.
	original, err := kubectl.GetOriginalConfiguration(p.mapping, obj)
	if err != nil {
		return nil, cmdutil.AddSourceToErr(fmt.Sprintf("retrieving original configuration from:\n%v\nfor:", obj), source, err)
	}

	// Create the versioned struct from the original from the server for
	// strategic patch.
	// TODO: Move all structs in apply to use raw data. Can be done once
	// builder has a RawResult method which delivers raw data instead of
	// internal objects.
	versionedObject, _, err := p.decoder.Decode(current, nil, nil)
	if err != nil {
		return nil, cmdutil.AddSourceToErr(fmt.Sprintf("converting encoded server-side object back to versioned struct:\n%v\nfor:", obj), source, err)
	}

	// Compute a three way strategic merge patch to send to server.
	patch, err := strategicpatch.CreateThreeWayMergePatch(original, modified, current, versionedObject, true)
	if err != nil {
		format := "creating patch with:\noriginal:\n%s\nmodified:\n%s\ncurrent:\n%s\nfor:"
		return nil, cmdutil.AddSourceToErr(fmt.Sprintf(format, original, modified, current), source, err)
	}

	_, err = p.helper.Patch(namespace, name, api.StrategicMergePatchType, patch)
	return patch, err
}
Beispiel #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
}
Beispiel #3
0
func ReapResult(r *resource.Result, f *cmdutil.Factory, out io.Writer, isDefaultDelete, ignoreNotFound bool, timeout time.Duration, gracePeriod int, shortOutput bool, mapper meta.RESTMapper) error {
	found := 0
	if ignoreNotFound {
		r = r.IgnoreErrors(errors.IsNotFound)
	}
	err := r.Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}
		found++
		reaper, err := f.Reaper(info.Mapping)
		if err != nil {
			// If there is no reaper for this resources and the user didn't explicitly ask for stop.
			if kubectl.IsNoSuchReaperError(err) && isDefaultDelete {
				return deleteResource(info, out, shortOutput, mapper)
			}
			return cmdutil.AddSourceToErr("reaping", info.Source, err)
		}
		var options *api.DeleteOptions
		if gracePeriod >= 0 {
			options = api.NewDeleteOptions(int64(gracePeriod))
		}
		if err := reaper.Stop(info.Namespace, info.Name, timeout, options); err != nil {
			return cmdutil.AddSourceToErr("stopping", info.Source, err)
		}
		cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "deleted")
		return nil
	})
	if err != nil {
		return err
	}
	if found == 0 {
		fmt.Fprintf(out, "No resources found\n")
	}
	return nil
}
func (o PauseConfig) RunPause() error {
	allErrs := []error{}
	for _, info := range o.Infos {
		isAlreadyPaused, err := o.PauseObject(info.Object)
		if err != nil {
			allErrs = append(allErrs, cmdutil.AddSourceToErr("pausing", info.Source, err))
			continue
		}
		if isAlreadyPaused {
			cmdutil.PrintSuccess(o.Mapper, false, o.Out, info.Mapping.Resource, info.Name, "already paused")
			continue
		}
		cmdutil.PrintSuccess(o.Mapper, false, o.Out, info.Mapping.Resource, info.Name, "paused")
	}
	return utilerrors.NewAggregate(allErrs)
}
Beispiel #5
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
}