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, p.overwrite)
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
}
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 type defined in the restmapping
// (which is the API version we'll be submitting the patch to)
versionedObject, err := api.Scheme.New(p.mapping.GroupVersionKind)
if err != nil {
return nil, cmdutil.AddSourceToErr(fmt.Sprintf("getting instance of versioned object for %v:", p.mapping.GroupVersionKind), source, err)
}
// Compute a three way strategic merge patch to send to server.
patch, err := strategicpatch.CreateThreeWayMergePatch(original, modified, current, versionedObject, p.overwrite)
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
}
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, _, err := f.DefaultNamespace()
if err != nil {
return err
}
mapper, typer := f.Object()
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
Schema(schema).
ContinueOnError().
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(false, options.Filenames...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
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)
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); 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
}
// Serialize the current configuration of the object from the server.
current, err := info.Mapping.Codec.Encode(info.Object)
if err != nil {
return cmdutil.AddSourceToErr(fmt.Sprintf("serializing current configuration from:\n%v\nfor:", info), info.Source, err)
}
// Retrieve the original configuration of the object from the annotation.
original, err := kubectl.GetOriginalConfiguration(info)
if err != nil {
return cmdutil.AddSourceToErr(fmt.Sprintf("retrieving original configuration from:\n%v\nfor:", info), info.Source, err)
}
// Compute a three way strategic merge patch to send to server.
patch, err := strategicpatch.CreateThreeWayMergePatch(original, modified, current, info.VersionedObject, true)
if err != nil {
format := "creating patch with:\noriginal:\n%s\nmodified:\n%s\ncurrent:\n%s\nfrom:\n%v\nfor:"
return cmdutil.AddSourceToErr(fmt.Sprintf(format, original, modified, current, info), info.Source, err)
}
helper := resource.NewHelper(info.Client, info.Mapping)
_, 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
}
// ApplyResource applies the given data as a kubernetes resource
func ApplyResource(f *cmdutil.Factory, c *client.Client, ns string, data []byte, name string) error {
schemaCacheDir := "/tmp/kubectl.schema"
validate := true
schema, err := f.Validator(validate, schemaCacheDir)
if err != nil {
log.Info("Failed to load kubernetes schema: %s", err)
return err
}
mapper, typer := f.Object()
r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
Schema(schema).
ContinueOnError().
NamespaceParam(ns).DefaultNamespace().
Stream(bytes.NewReader(data), name).
Flatten().
Do()
err = r.Err()
if err != nil {
log.Info("Failed to load mapper!")
return err
}
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, f.JSONEncoder())
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 {
return cmdutil.AddSourceToErr(fmt.Sprintf("retrieving current configuration of:\n%v\nfrom server for:", info), info.Source, err)
}
// Serialize the current configuration of the object from the server.
current, err := runtime.Encode(f.JSONEncoder(), info.Object)
if err != nil {
return cmdutil.AddSourceToErr(fmt.Sprintf("serializing current configuration from:\n%v\nfor:", info), info.Source, err)
}
// Retrieve the original configuration of the object from the annotation.
original, err := kubectl.GetOriginalConfiguration(info)
if err != nil {
return cmdutil.AddSourceToErr(fmt.Sprintf("retrieving original configuration from:\n%v\nfor:", info), info.Source, err)
}
// Compute a three way strategic merge patch to send to server.
patch, err := strategicpatch.CreateThreeWayMergePatch(original, modified, current, info.VersionedObject, false)
if err != nil {
format := "creating patch with:\noriginal:\n%s\nmodified:\n%s\ncurrent:\n%s\nfrom:\n%v\nfor:"
return cmdutil.AddSourceToErr(fmt.Sprintf(format, original, modified, current, info), info.Source, err)
}
helper := resource.NewHelper(info.Client, info.Mapping)
_, 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, false, os.Stdout, 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
}