func RunDelete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *DeleteOptions) error {
cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
deleteAll := cmdutil.GetFlagBool(cmd, "all")
mapper, typer := f.Object()
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
ContinueOnError().
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(enforceNamespace, options.Filenames...).
SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
SelectAllParam(deleteAll).
ResourceTypeOrNameArgs(false, args...).RequireObject(false).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
ignoreNotFound := cmdutil.GetFlagBool(cmd, "ignore-not-found")
if deleteAll {
f := cmd.Flags().Lookup("ignore-not-found")
// The flag should never be missing
if f == nil {
return fmt.Errorf("missing --ignore-not-found flag")
}
// If the user didn't explicitly set the option, default to ignoring NotFound errors when used with --all
if !f.Changed {
ignoreNotFound = true
}
}
shortOutput := cmdutil.GetFlagString(cmd, "output") == "name"
// By default use a reaper to delete all related resources.
if cmdutil.GetFlagBool(cmd, "cascade") {
return ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper)
}
return DeleteResult(r, out, ignoreNotFound, shortOutput, mapper)
}
func RunStop(f *cmdutil.Factory, cmd *cobra.Command, args []string, out io.Writer, options *StopOptions) error {
cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
mapper, typer := f.Object()
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
ContinueOnError().
NamespaceParam(cmdNamespace).DefaultNamespace().
ResourceTypeOrNameArgs(false, args...).
FilenameParam(enforceNamespace, options.Filenames...).
SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
SelectAllParam(cmdutil.GetFlagBool(cmd, "all")).
Flatten().
Do()
if r.Err() != nil {
return r.Err()
}
shortOutput := cmdutil.GetFlagString(cmd, "output") == "name"
return ReapResult(r, f, out, false, cmdutil.GetFlagBool(cmd, "ignore-not-found"), cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper)
}
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")
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.GetFlagBool(cmd, "dry-run")
outputFormat := cmdutil.GetFlagString(cmd, "output")
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()
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, f.ClientMapperForCommand()).
Schema(schema).
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(enforceNamespace, 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 _, kind, err := typer.ObjectVersionAndKind(obj); err == nil {
return cmdutil.UsageError(cmd, "%s contains a %s not a ReplicationController", filename, kind)
}
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, which will differ because the new rc has a
// different image.
if len(image) != 0 {
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 {
if oldRc.Spec.Template.Spec.Containers[0].Image == image {
return cmdutil.UsageError(cmd, "Specified --image must be distinct from existing container image")
}
newRc, err = kubectl.CreateNewControllerFromCurrentController(client, cmdNamespace, oldName, newName, image, deploymentKey)
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, client.Codec)
if err != nil {
return err
}
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, oldRc, oldRcData); err != nil {
return err
}
if err := f.PrintObject(cmd, 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: util.NewIntOrStringFromInt(0),
MaxSurge: util.NewIntOrStringFromInt(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, newRc, out)
}
_, kind, err := api.Scheme.ObjectVersionAndKind(newRc)
if err != nil {
return err
}
_, res := meta.KindToResource(kind, false)
cmdutil.PrintSuccess(mapper, false, out, res, oldName, message)
return nil
}
// RunLog retrieves a pod log
func RunLog(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, p *logParams) error {
if len(os.Args) > 1 && os.Args[1] == "log" {
printDeprecationWarning("logs", "log")
}
if len(args) == 0 {
return cmdutil.UsageError(cmd, "POD is required for log")
}
if len(args) > 2 {
return cmdutil.UsageError(cmd, "log POD [CONTAINER]")
}
sinceSeconds := cmdutil.GetFlagDuration(cmd, "since")
sinceTime := cmdutil.GetFlagString(cmd, "since-time")
if len(sinceTime) > 0 && sinceSeconds > 0 {
return cmdutil.UsageError(cmd, "only one of --since, --since-time may be specified")
}
namespace, _, err := f.DefaultNamespace()
if err != nil {
return err
}
client, err := f.Client()
if err != nil {
return err
}
podID := args[0]
pod, err := client.Pods(namespace).Get(podID)
if err != nil {
return err
}
// [-c CONTAINER]
container := p.containerName
if len(container) == 0 {
// [CONTAINER] (container as arg not flag) is supported as legacy behavior. See PR #10519 for more details.
if len(args) == 1 {
if len(pod.Spec.Containers) != 1 {
podContainersNames := []string{}
for _, container := range pod.Spec.Containers {
podContainersNames = append(podContainersNames, container.Name)
}
return fmt.Errorf("Pod %s has the following containers: %s; please specify the container to print logs for with -c", pod.ObjectMeta.Name, strings.Join(podContainersNames, ", "))
}
container = pod.Spec.Containers[0].Name
} else {
container = args[1]
}
}
logOptions := &api.PodLogOptions{
Container: container,
Follow: cmdutil.GetFlagBool(cmd, "follow"),
Previous: cmdutil.GetFlagBool(cmd, "previous"),
Timestamps: cmdutil.GetFlagBool(cmd, "timestamps"),
}
if sinceSeconds > 0 {
// round up to the nearest second
sec := int64(math.Ceil(float64(sinceSeconds) / float64(time.Second)))
logOptions.SinceSeconds = &sec
}
if t, err := api.ParseRFC3339(sinceTime, unversioned.Now); err == nil {
logOptions.SinceTime = &t
}
if limitBytes := cmdutil.GetFlagInt(cmd, "limit-bytes"); limitBytes != 0 {
i := int64(limitBytes)
logOptions.LimitBytes = &i
}
if tail := cmdutil.GetFlagInt(cmd, "tail"); tail >= 0 {
i := int64(tail)
logOptions.TailLines = &i
}
return handleLog(client, namespace, podID, logOptions, out)
}
func forceReplace(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, shortOutput bool, options *ReplaceOptions) error {
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
}
for i, filename := range options.Filenames {
if filename == "-" {
tempDir, err := ioutil.TempDir("", "kubectl_replace_")
if err != nil {
return err
}
defer os.RemoveAll(tempDir)
tempFilename := filepath.Join(tempDir, "resource.stdin")
err = cmdutil.DumpReaderToFile(os.Stdin, tempFilename)
if err != nil {
return err
}
options.Filenames[i] = tempFilename
}
}
mapper, typer := f.Object()
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
ContinueOnError().
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(enforceNamespace, options.Filenames...).
ResourceTypeOrNameArgs(false, args...).RequireObject(false).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
//Replace will create a resource if it doesn't exist already, so ignore not found error
ignoreNotFound := true
// By default use a reaper to delete all related resources.
if cmdutil.GetFlagBool(cmd, "cascade") {
glog.Warningf("\"cascade\" is set, kubectl will delete and re-create all resources managed by this resource (e.g. Pods created by a ReplicationController). Consider using \"kubectl rolling-update\" if you want to update a ReplicationController together with its Pods.")
err = ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"), ignoreNotFound, cmdutil.GetFlagDuration(cmd, "timeout"), cmdutil.GetFlagInt(cmd, "grace-period"), shortOutput, mapper)
} else {
err = DeleteResult(r, out, ignoreNotFound, shortOutput, mapper)
}
if err != nil {
return err
}
r = resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
Schema(schema).
ContinueOnError().
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(enforceNamespace, options.Filenames...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
count := 0
err = r.Visit(func(info *resource.Info, err error) error {
if err != nil {
return err
}
// Serialize the configuration into an annotation.
if err := kubectl.UpdateApplyAnnotation(info); err != nil {
return err
}
// Serialize the object with the annotation applied.
data, err := info.Mapping.Codec.Encode(info.Object)
if err != nil {
return err
}
obj, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, data)
if err != nil {
return err
}
count++
info.Refresh(obj, true)
printObjectSpecificMessage(obj, out)
cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "replaced")
return nil
})
if err != nil {
return err
}
if count == 0 {
return fmt.Errorf("no objects passed to replace")
}
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()
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
ContinueOnError().
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(enforceNamespace, options.Filenames...).
ResourceTypeOrNameArgs(false, args...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
infos, err := r.Infos()
if err != nil {
return err
}
info := infos[0]
mapping := info.ResourceMapping()
scaler, err := f.Scaler(mapping)
if err != nil {
return err
}
resourceVersion := cmdutil.GetFlagString(cmd, "resource-version")
if len(resourceVersion) != 0 && len(infos) > 1 {
return fmt.Errorf("cannot use --resource-version with multiple controllers")
}
currentSize := cmdutil.GetFlagInt(cmd, "current-replicas")
if currentSize != -1 && len(infos) > 1 {
return fmt.Errorf("cannot use --current-replicas with multiple controllers")
}
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)
}
errs := []error{}
for _, info := range infos {
if err := scaler.Scale(info.Namespace, info.Name, uint(count), precondition, retry, waitForReplicas); err != nil {
errs = append(errs, err)
continue
}
cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "scaled")
}
return utilerrors.NewAggregate(errs)
}
