// 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 (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)
}
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
}
// RunDrain runs the 'drain' command
func (o *DrainOptions) RunDrain() error {
if err := o.RunCordonOrUncordon(true); err != nil {
return err
}
pods, err := o.getPodsForDeletion()
if err != nil {
return err
}
if err = o.deletePods(pods); err != nil {
return err
}
cmdutil.PrintSuccess(o.mapper, false, o.out, "node", o.nodeInfo.Name, "drained")
return nil
}
func generateService(f *cmdutil.Factory, cmd *cobra.Command, args []string, serviceGenerator string, paramsIn map[string]interface{}, namespace string, out io.Writer) error {
generators := f.Generators("expose")
generator, found := generators[serviceGenerator]
if !found {
return fmt.Errorf("missing service generator: %s", serviceGenerator)
}
names := generator.ParamNames()
port := cmdutil.GetFlagInt(cmd, "port")
if port < 1 {
return fmt.Errorf("--port must be a positive integer when exposing a service")
}
params := map[string]interface{}{}
for key, value := range paramsIn {
_, isString := value.(string)
if isString {
params[key] = value
}
}
name, found := params["name"]
if !found || len(name.(string)) == 0 {
return fmt.Errorf("name is a required parameter")
}
selector, found := params["labels"]
if !found || len(selector.(string)) == 0 {
selector = fmt.Sprintf("run=%s", name.(string))
}
params["selector"] = selector
if defaultName, found := params["default-name"]; !found || len(defaultName.(string)) == 0 {
params["default-name"] = name
}
obj, _, mapper, mapping, err := createGeneratedObject(f, cmd, generator, names, params, cmdutil.GetFlagString(cmd, "service-overrides"), namespace)
if err != nil {
return err
}
if cmdutil.GetFlagString(cmd, "output") != "" {
return f.PrintObject(cmd, mapper, obj, out)
}
cmdutil.PrintSuccess(mapper, false, out, mapping.Resource, args[0], "created")
return nil
}
// deletePods deletes the pods on the api server
func (o *DrainOptions) deletePods(pods []api.Pod) error {
deleteOptions := api.DeleteOptions{}
if o.GracePeriodSeconds >= 0 {
gracePeriodSeconds := int64(o.GracePeriodSeconds)
deleteOptions.GracePeriodSeconds = &gracePeriodSeconds
}
for _, pod := range pods {
err := o.client.Pods(pod.Namespace).Delete(pod.Name, &deleteOptions)
if err != nil {
return err
}
cmdutil.PrintSuccess(o.mapper, false, o.out, "pod", pod.Name, "deleted")
}
return nil
}
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
}
// 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 RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *RollingUpdateOptions) error {
if len(os.Args) > 1 && os.Args[1] == "rollingupdate" {
printDeprecationWarning("rolling-update", "rollingupdate")
}
err := validateArguments(cmd, options.Filenames, args)
if err != nil {
return err
}
deploymentKey := cmdutil.GetFlagString(cmd, "deployment-label-key")
filename := ""
image := cmdutil.GetFlagString(cmd, "image")
pullPolicy := cmdutil.GetFlagString(cmd, "image-pull-policy")
oldName := args[0]
rollback := cmdutil.GetFlagBool(cmd, "rollback")
period := cmdutil.GetFlagDuration(cmd, "update-period")
interval := cmdutil.GetFlagDuration(cmd, "poll-interval")
timeout := cmdutil.GetFlagDuration(cmd, "timeout")
dryrun := cmdutil.GetDryRunFlag(cmd)
outputFormat := cmdutil.GetFlagString(cmd, "output")
container := cmdutil.GetFlagString(cmd, "container")
if len(options.Filenames) > 0 {
filename = options.Filenames[0]
}
cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
client, err := f.Client()
if err != nil {
return err
}
var newRc *api.ReplicationController
// fetch rc
oldRc, err := client.ReplicationControllers(cmdNamespace).Get(oldName)
if err != nil {
if !errors.IsNotFound(err) || len(image) == 0 || len(args) > 1 {
return err
}
// We're in the middle of a rename, look for an RC with a source annotation of oldName
newRc, err := kubectl.FindSourceController(client, cmdNamespace, oldName)
if err != nil {
return err
}
return kubectl.Rename(client, newRc, oldName)
}
var keepOldName bool
var replicasDefaulted bool
mapper, typer := f.Object(cmdutil.GetIncludeThirdPartyAPIs(cmd))
if len(filename) != 0 {
schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir"))
if err != nil {
return err
}
request := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
Schema(schema).
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(enforceNamespace, false, filename).
Do()
obj, err := request.Object()
if err != nil {
return err
}
var ok bool
// Handle filename input from stdin. The resource builder always returns an api.List
// when creating resource(s) from a stream.
if list, ok := obj.(*api.List); ok {
if len(list.Items) > 1 {
return cmdutil.UsageError(cmd, "%s specifies multiple items", filename)
}
obj = list.Items[0]
}
newRc, ok = obj.(*api.ReplicationController)
if !ok {
if gvks, _, err := typer.ObjectKinds(obj); err == nil {
return cmdutil.UsageError(cmd, "%s contains a %v not a ReplicationController", filename, gvks[0])
}
glog.V(4).Infof("Object %#v is not a ReplicationController", obj)
return cmdutil.UsageError(cmd, "%s does not specify a valid ReplicationController", filename)
}
infos, err := request.Infos()
if err != nil || len(infos) != 1 {
glog.V(2).Infof("was not able to recover adequate information to discover if .spec.replicas was defaulted")
} else {
replicasDefaulted = isReplicasDefaulted(infos[0])
}
}
// If the --image option is specified, we need to create a new rc with at least one different selector
// than the old rc. This selector is the hash of the rc, with a suffix to provide uniqueness for
// same-image updates.
if len(image) != 0 {
codec := api.Codecs.LegacyCodec(client.APIVersion())
keepOldName = len(args) == 1
newName := findNewName(args, oldRc)
if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil {
return err
}
if newRc != nil {
if inProgressImage := newRc.Spec.Template.Spec.Containers[0].Image; inProgressImage != image {
return cmdutil.UsageError(cmd, "Found existing in-progress update to image (%s).\nEither continue in-progress update with --image=%s or rollback with --rollback", inProgressImage, inProgressImage)
}
fmt.Fprintf(out, "Found existing update in progress (%s), resuming.\n", newRc.Name)
} else {
config := &kubectl.NewControllerConfig{
Namespace: cmdNamespace,
OldName: oldName,
NewName: newName,
Image: image,
Container: container,
DeploymentKey: deploymentKey,
}
if oldRc.Spec.Template.Spec.Containers[0].Image == image {
if len(pullPolicy) == 0 {
return cmdutil.UsageError(cmd, "--image-pull-policy (Always|Never|IfNotPresent) must be provided when --image is the same as existing container image")
}
config.PullPolicy = api.PullPolicy(pullPolicy)
}
newRc, err = kubectl.CreateNewControllerFromCurrentController(client, codec, config)
if err != nil {
return err
}
}
// Update the existing replication controller with pointers to the 'next' controller
// and adding the <deploymentKey> label if necessary to distinguish it from the 'next' controller.
oldHash, err := api.HashObject(oldRc, codec)
if err != nil {
return err
}
// If new image is same as old, the hash may not be distinct, so add a suffix.
oldHash += "-orig"
oldRc, err = kubectl.UpdateExistingReplicationController(client, oldRc, cmdNamespace, newRc.Name, deploymentKey, oldHash, out)
if err != nil {
return err
}
}
if rollback {
keepOldName = len(args) == 1
newName := findNewName(args, oldRc)
if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil {
return err
}
if newRc == nil {
return cmdutil.UsageError(cmd, "Could not find %s to rollback.\n", newName)
}
}
if oldName == newRc.Name {
return cmdutil.UsageError(cmd, "%s cannot have the same name as the existing ReplicationController %s",
filename, oldName)
}
updater := kubectl.NewRollingUpdater(newRc.Namespace, client)
// To successfully pull off a rolling update the new and old rc have to differ
// by at least one selector. Every new pod should have the selector and every
// old pod should not have the selector.
var hasLabel bool
for key, oldValue := range oldRc.Spec.Selector {
if newValue, ok := newRc.Spec.Selector[key]; ok && newValue != oldValue {
hasLabel = true
break
}
}
if !hasLabel {
return cmdutil.UsageError(cmd, "%s must specify a matching key with non-equal value in Selector for %s",
filename, oldName)
}
// TODO: handle scales during rolling update
if replicasDefaulted {
newRc.Spec.Replicas = oldRc.Spec.Replicas
}
if dryrun {
oldRcData := &bytes.Buffer{}
newRcData := &bytes.Buffer{}
if outputFormat == "" {
oldRcData.WriteString(oldRc.Name)
newRcData.WriteString(newRc.Name)
} else {
if err := f.PrintObject(cmd, mapper, oldRc, oldRcData); err != nil {
return err
}
if err := f.PrintObject(cmd, mapper, newRc, newRcData); err != nil {
return err
}
}
fmt.Fprintf(out, "Rolling from:\n%s\nTo:\n%s\n", string(oldRcData.Bytes()), string(newRcData.Bytes()))
return nil
}
updateCleanupPolicy := kubectl.DeleteRollingUpdateCleanupPolicy
if keepOldName {
updateCleanupPolicy = kubectl.RenameRollingUpdateCleanupPolicy
}
config := &kubectl.RollingUpdaterConfig{
Out: out,
OldRc: oldRc,
NewRc: newRc,
UpdatePeriod: period,
Interval: interval,
Timeout: timeout,
CleanupPolicy: updateCleanupPolicy,
MaxUnavailable: intstr.FromInt(0),
MaxSurge: intstr.FromInt(1),
}
if rollback {
err = kubectl.AbortRollingUpdate(config)
if err != nil {
return err
}
client.ReplicationControllers(config.NewRc.Namespace).Update(config.NewRc)
}
err = updater.Update(config)
if err != nil {
return err
}
message := "rolling updated"
if keepOldName {
newRc.Name = oldName
} else {
message = fmt.Sprintf("rolling updated to %q", newRc.Name)
}
newRc, err = client.ReplicationControllers(cmdNamespace).Get(newRc.Name)
if err != nil {
return err
}
if outputFormat != "" {
return f.PrintObject(cmd, mapper, newRc, out)
}
kinds, _, err := api.Scheme.ObjectKinds(newRc)
if err != nil {
return err
}
_, res := meta.KindToResource(kinds[0])
cmdutil.PrintSuccess(mapper, false, out, res.Resource, oldName, message)
return nil
}
func Run(f *cmdutil.Factory, cmdIn io.Reader, cmdOut, cmdErr io.Writer, cmd *cobra.Command, args []string, argsLenAtDash int) error {
if len(os.Args) > 1 && os.Args[1] == "run-container" {
printDeprecationWarning("run", "run-container")
}
// Let kubectl run follow rules for `--`, see #13004 issue
if len(args) == 0 || argsLenAtDash == 0 {
return cmdutil.UsageError(cmd, "NAME is required for run")
}
interactive := cmdutil.GetFlagBool(cmd, "stdin")
tty := cmdutil.GetFlagBool(cmd, "tty")
if tty && !interactive {
return cmdutil.UsageError(cmd, "-i/--stdin is required for containers with -t/--tty=true")
}
replicas := cmdutil.GetFlagInt(cmd, "replicas")
if interactive && replicas != 1 {
return cmdutil.UsageError(cmd, fmt.Sprintf("-i/--stdin requires that replicas is 1, found %d", replicas))
}
namespace, _, err := f.DefaultNamespace()
if err != nil {
return err
}
restartPolicy, err := getRestartPolicy(cmd, interactive)
if err != nil {
return err
}
if restartPolicy != api.RestartPolicyAlways && replicas != 1 {
return cmdutil.UsageError(cmd, fmt.Sprintf("--restart=%s requires that --replicas=1, found %d", restartPolicy, replicas))
}
generatorName := cmdutil.GetFlagString(cmd, "generator")
if len(generatorName) == 0 {
client, err := f.Client()
if err != nil {
return err
}
resourcesList, err := client.Discovery().ServerResources()
// ServerResources ignores errors for old servers do not expose discovery
if err != nil {
return fmt.Errorf("failed to discover supported resources: %v", err)
}
switch restartPolicy {
case api.RestartPolicyAlways:
if contains(resourcesList, v1beta1.SchemeGroupVersion.WithResource("deployments")) {
generatorName = "deployment/v1beta1"
} else {
generatorName = "run/v1"
}
case api.RestartPolicyOnFailure:
if contains(resourcesList, batchv1.SchemeGroupVersion.WithResource("jobs")) {
generatorName = "job/v1"
} else if contains(resourcesList, v1beta1.SchemeGroupVersion.WithResource("jobs")) {
generatorName = "job/v1beta1"
} else {
generatorName = "run-pod/v1"
}
case api.RestartPolicyNever:
generatorName = "run-pod/v1"
}
}
generators := f.Generators("run")
generator, found := generators[generatorName]
if !found {
return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q not found.", generatorName))
}
names := generator.ParamNames()
params := kubectl.MakeParams(cmd, names)
params["name"] = args[0]
if len(args) > 1 {
params["args"] = args[1:]
}
params["env"] = cmdutil.GetFlagStringSlice(cmd, "env")
obj, _, mapper, mapping, err := createGeneratedObject(f, cmd, generator, names, params, cmdutil.GetFlagString(cmd, "overrides"), namespace)
if err != nil {
return err
}
if cmdutil.GetFlagBool(cmd, "expose") {
serviceGenerator := cmdutil.GetFlagString(cmd, "service-generator")
if len(serviceGenerator) == 0 {
return cmdutil.UsageError(cmd, fmt.Sprintf("No service generator specified"))
}
if err := generateService(f, cmd, args, serviceGenerator, params, namespace, cmdOut); err != nil {
return err
}
}
attachFlag := cmd.Flags().Lookup("attach")
attach := cmdutil.GetFlagBool(cmd, "attach")
if !attachFlag.Changed && interactive {
attach = true
}
remove := cmdutil.GetFlagBool(cmd, "rm")
if !attach && remove {
return cmdutil.UsageError(cmd, "--rm should only be used for attached containers")
}
if attach {
opts := &AttachOptions{
In: cmdIn,
Out: cmdOut,
Err: cmdErr,
Stdin: interactive,
TTY: tty,
CommandName: cmd.Parent().CommandPath() + " attach",
Attach: &DefaultRemoteAttach{},
}
config, err := f.ClientConfig()
if err != nil {
return err
}
opts.Config = config
client, err := f.Client()
if err != nil {
return err
}
opts.Client = client
attachablePod, err := f.AttachablePodForObject(obj)
if err != nil {
return err
}
err = handleAttachPod(f, client, attachablePod, opts)
if err != nil {
return err
}
if remove {
namespace, err = mapping.MetadataAccessor.Namespace(obj)
if err != nil {
return err
}
var name string
name, err = mapping.MetadataAccessor.Name(obj)
if err != nil {
return err
}
_, typer := f.Object(cmdutil.GetIncludeThirdPartyAPIs(cmd))
r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
ContinueOnError().
NamespaceParam(namespace).DefaultNamespace().
ResourceNames(mapping.Resource, name).
Flatten().
Do()
return ReapResult(r, f, cmdOut, true, true, 0, -1, false, mapper)
}
return nil
}
outputFormat := cmdutil.GetFlagString(cmd, "output")
if outputFormat != "" {
return f.PrintObject(cmd, mapper, obj, cmdOut)
}
cmdutil.PrintSuccess(mapper, false, cmdOut, mapping.Resource, args[0], "created")
return nil
}