// 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
}
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
}
// 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
}
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
}
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)
}
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
}