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.GetFlagString(cmd, "port")
if len(port) == 0 {
return fmt.Errorf("--port must be set 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") != "" || cmdutil.GetDryRunFlag(cmd) {
return f.PrintObject(cmd, mapper, obj, out)
}
cmdutil.PrintSuccess(mapper, false, out, mapping.Resource, args[0], cmdutil.GetDryRunFlag(cmd), "created")
return nil
}
func RunExpose(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *ExposeOptions) error {
namespace, enforceNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
mapper, typer := f.Object(false)
r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
ContinueOnError().
NamespaceParam(namespace).DefaultNamespace().
FilenameParam(enforceNamespace, options.Recursive, options.Filenames...).
ResourceTypeOrNameArgs(false, args...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
// Get the generator, setup and validate all required parameters
generatorName := cmdutil.GetFlagString(cmd, "generator")
generators := f.Generators("expose")
generator, found := generators[generatorName]
if !found {
return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q not found.", generatorName))
}
names := generator.ParamNames()
err = r.Visit(func(info *resource.Info, err error) error {
if err != nil {
return err
}
mapping := info.ResourceMapping()
if err := f.CanBeExposed(mapping.GroupVersionKind.GroupKind()); err != nil {
return err
}
params := kubectl.MakeParams(cmd, names)
name := info.Name
if len(name) > validation.DNS952LabelMaxLength {
name = name[:validation.DNS952LabelMaxLength]
}
params["default-name"] = name
// For objects that need a pod selector, derive it from the exposed object in case a user
// didn't explicitly specify one via --selector
if s, found := params["selector"]; found && kubectl.IsZero(s) {
s, err := f.MapBasedSelectorForObject(info.Object)
if err != nil {
return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't retrieve selectors via --selector flag or introspection: %s", err))
}
params["selector"] = s
}
// For objects that need a port, derive it from the exposed object in case a user
// didn't explicitly specify one via --port
if port, found := params["port"]; found && kubectl.IsZero(port) {
ports, err := f.PortsForObject(info.Object)
if err != nil {
return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find port via --port flag or introspection: %s", err))
}
switch len(ports) {
case 0:
return cmdutil.UsageError(cmd, "couldn't find port via --port flag or introspection")
case 1:
params["port"] = ports[0]
default:
params["ports"] = strings.Join(ports, ",")
}
}
// Always try to derive protocols from the exposed object, may use
// different protocols for different ports.
if _, found := params["protocol"]; found {
protocolsMap, err := f.ProtocolsForObject(info.Object)
if err != nil {
return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find protocol via introspection: %s", err))
}
if protocols := kubectl.MakeProtocols(protocolsMap); !kubectl.IsZero(protocols) {
params["protocols"] = protocols
}
}
if kubectl.IsZero(params["labels"]) {
labels, err := f.LabelsForObject(info.Object)
if err != nil {
return err
}
params["labels"] = kubectl.MakeLabels(labels)
}
if err = kubectl.ValidateParams(names, params); err != nil {
return err
}
// Check for invalid flags used against the present generator.
if err := kubectl.EnsureFlagsValid(cmd, generators, generatorName); err != nil {
return err
}
// Generate new object
object, err := generator.Generate(params)
if err != nil {
return err
}
if inline := cmdutil.GetFlagString(cmd, "overrides"); len(inline) > 0 {
codec := runtime.NewCodec(f.JSONEncoder(), f.Decoder(true))
object, err = cmdutil.Merge(codec, object, inline, mapping.GroupVersionKind.Kind)
if err != nil {
return err
}
}
resourceMapper := &resource.Mapper{
ObjectTyper: typer,
RESTMapper: mapper,
ClientMapper: resource.ClientMapperFunc(f.ClientForMapping),
Decoder: f.Decoder(true),
}
info, err = resourceMapper.InfoForObject(object, nil)
if err != nil {
return err
}
if cmdutil.ShouldRecord(cmd, info) {
if err := cmdutil.RecordChangeCause(object, f.Command()); err != nil {
return err
}
}
info.Refresh(object, true)
if cmdutil.GetDryRunFlag(cmd) {
return f.PrintObject(cmd, mapper, object, out)
}
if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info, f.JSONEncoder()); err != nil {
return err
}
// Serialize the object with the annotation applied.
object, err = resource.NewHelper(info.Client, info.Mapping).Create(namespace, false, object)
if err != nil {
return err
}
if len(cmdutil.GetFlagString(cmd, "output")) > 0 {
return f.PrintObject(cmd, mapper, object, out)
}
cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "exposed")
return nil
})
if err != nil {
return err
}
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")
}
// validate image name
imageName := cmdutil.GetFlagString(cmd, "image")
validImageRef := reference.ReferenceRegexp.MatchString(imageName)
if !validImageRef {
return fmt.Errorf("Invalid image name %q: %v", imageName, reference.ErrReferenceInvalidFormat)
}
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))
}
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 && cmdutil.GetDryRunFlag(cmd) {
return cmdutil.UsageError(cmd, "--dry-run can't be used with attached containers options (--attach, --stdin, or --tty)")
}
if err := verifyImagePullPolicy(cmd); err != nil {
return err
}
generatorName := cmdutil.GetFlagString(cmd, "generator")
schedule := cmdutil.GetFlagString(cmd, "schedule")
if len(schedule) != 0 && len(generatorName) == 0 {
generatorName = "cronjob/v2alpha1"
}
if len(generatorName) == 0 {
clientset, err := f.ClientSet()
if err != nil {
return err
}
resourcesList, err := clientset.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"
}
}
if generatorName == "job/v1beta1" {
fmt.Fprintf(cmdErr, "DEPRECATED: --generator=job/v1beta1 is deprecated, use job/v1 instead.\n")
}
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
}
}
if attach {
quiet := cmdutil.GetFlagBool(cmd, "quiet")
opts := &AttachOptions{
StreamOptions: StreamOptions{
In: cmdIn,
Out: cmdOut,
Err: cmdErr,
Stdin: interactive,
TTY: tty,
Quiet: quiet,
},
CommandName: cmd.Parent().CommandPath() + " attach",
Attach: &DefaultRemoteAttach{},
}
config, err := f.ClientConfig()
if err != nil {
return err
}
opts.Config = config
clientset, err := f.ClientSet()
if err != nil {
return err
}
opts.PodClient = clientset.Core()
attachablePod, err := f.AttachablePodForObject(obj)
if err != nil {
return err
}
err = handleAttachPod(f, clientset.Core(), attachablePod.Namespace, attachablePod.Name, opts, quiet)
if err != nil {
return err
}
var pod *api.Pod
leaveStdinOpen := cmdutil.GetFlagBool(cmd, "leave-stdin-open")
waitForExitCode := !leaveStdinOpen && restartPolicy == api.RestartPolicyNever
if waitForExitCode {
pod, err = waitForPodTerminated(clientset.Core(), attachablePod.Namespace, attachablePod.Name, opts.Out, quiet)
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()
r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
ContinueOnError().
NamespaceParam(namespace).DefaultNamespace().
ResourceNames(mapping.Resource, name).
Flatten().
Do()
// Note: we pass in "true" for the "quiet" parameter because
// ReadResult will only print one thing based on the "quiet"
// flag, and that's the "pod xxx deleted" message. If they
// asked for us to remove the pod (via --rm) then telling them
// its been deleted is unnecessary since that's what they asked
// for. We should only print something if the "rm" fails.
err = ReapResult(r, f, cmdOut, true, true, 0, -1, false, false, mapper, true)
if err != nil {
return err
}
}
// after removal is done, return successfully if we are not interested in the exit code
if !waitForExitCode {
return nil
}
switch pod.Status.Phase {
case api.PodSucceeded:
return nil
case api.PodFailed:
unknownRcErr := fmt.Errorf("pod %s/%s failed with unknown exit code", pod.Namespace, pod.Name)
if len(pod.Status.ContainerStatuses) == 0 || pod.Status.ContainerStatuses[0].State.Terminated == nil {
return unknownRcErr
}
// assume here that we have at most one status because kubectl-run only creates one container per pod
rc := pod.Status.ContainerStatuses[0].State.Terminated.ExitCode
if rc == 0 {
return unknownRcErr
}
return uexec.CodeExitError{
Err: fmt.Errorf("pod %s/%s terminated", pod.Namespace, pod.Name),
Code: int(rc),
}
default:
return fmt.Errorf("pod %s/%s left in phase %s", pod.Namespace, pod.Name, pod.Status.Phase)
}
}
outputFormat := cmdutil.GetFlagString(cmd, "output")
if outputFormat != "" || cmdutil.GetDryRunFlag(cmd) {
return f.PrintObject(cmd, mapper, obj, cmdOut)
}
cmdutil.PrintSuccess(mapper, false, cmdOut, mapping.Resource, args[0], cmdutil.GetDryRunFlag(cmd), "created")
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()
if err != nil {
// this cover the cases where old servers do not expose discovery
resourcesList = nil
}
if restartPolicy == api.RestartPolicyAlways {
if contains(resourcesList, v1beta1.SchemeGroupVersion.WithResource("deployments")) {
generatorName = "deployment/v1beta1"
} else {
generatorName = "run/v1"
}
} else {
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"
}
}
}
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,
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
}
func RunAutoscale(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *AutoscaleOptions) error {
namespace, enforceNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
// validate flags
if err := validateFlags(cmd); 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(namespace).DefaultNamespace().
FilenameParam(enforceNamespace, options.Recursive, options.Filenames...).
ResourceTypeOrNameArgs(false, args...).
Flatten().
Do()
infos, err := r.Infos()
if err != nil {
return err
}
if len(infos) > 1 {
return fmt.Errorf("multiple resources provided: %v", args)
}
info := infos[0]
mapping := info.ResourceMapping()
if err := f.CanBeAutoscaled(mapping.GroupVersionKind.GroupKind()); err != nil {
return err
}
// Get the generator, setup and validate all required parameters
generatorName := cmdutil.GetFlagString(cmd, "generator")
generators := f.Generators("autoscale")
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)
name := info.Name
params["default-name"] = name
params["scaleRef-kind"] = mapping.GroupVersionKind.Kind
params["scaleRef-name"] = name
params["scaleRef-apiVersion"] = mapping.GroupVersionKind.GroupVersion().String()
if err = kubectl.ValidateParams(names, params); err != nil {
return err
}
// Check for invalid flags used against the present generator.
if err := kubectl.EnsureFlagsValid(cmd, generators, generatorName); err != nil {
return err
}
// Generate new object
object, err := generator.Generate(params)
if err != nil {
return err
}
resourceMapper := &resource.Mapper{
ObjectTyper: typer,
RESTMapper: mapper,
ClientMapper: resource.ClientMapperFunc(f.ClientForMapping),
Decoder: f.Decoder(true),
}
hpa, err := resourceMapper.InfoForObject(object, nil)
if err != nil {
return err
}
if cmdutil.ShouldRecord(cmd, hpa) {
if err := cmdutil.RecordChangeCause(hpa.Object, f.Command()); err != nil {
return err
}
object = hpa.Object
}
// TODO: extract this flag to a central location, when such a location exists.
if cmdutil.GetFlagBool(cmd, "dry-run") {
return f.PrintObject(cmd, mapper, object, out)
}
if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), hpa, f.JSONEncoder()); err != nil {
return err
}
object, err = resource.NewHelper(hpa.Client, hpa.Mapping).Create(namespace, false, object)
if err != nil {
return err
}
if len(cmdutil.GetFlagString(cmd, "output")) > 0 {
return f.PrintObject(cmd, mapper, object, out)
}
cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "autoscaled")
return nil
}
func RunAutoscale(f cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *resource.FilenameOptions) error {
namespace, enforceNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
// validate flags
if err := validateFlags(cmd); err != nil {
return err
}
mapper, typer := f.Object()
r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
ContinueOnError().
NamespaceParam(namespace).DefaultNamespace().
FilenameParam(enforceNamespace, options).
ResourceTypeOrNameArgs(false, args...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
// Get the generator, setup and validate all required parameters
generatorName := cmdutil.GetFlagString(cmd, "generator")
generators := f.Generators("autoscale")
generator, found := generators[generatorName]
if !found {
return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q not found.", generatorName))
}
names := generator.ParamNames()
count := 0
err = r.Visit(func(info *resource.Info, err error) error {
if err != nil {
return err
}
mapping := info.ResourceMapping()
if err := f.CanBeAutoscaled(mapping.GroupVersionKind.GroupKind()); err != nil {
return err
}
name := info.Name
params := kubectl.MakeParams(cmd, names)
params["default-name"] = name
params["scaleRef-kind"] = mapping.GroupVersionKind.Kind
params["scaleRef-name"] = name
params["scaleRef-apiVersion"] = mapping.GroupVersionKind.GroupVersion().String()
if err = kubectl.ValidateParams(names, params); err != nil {
return err
}
// Check for invalid flags used against the present generator.
if err := kubectl.EnsureFlagsValid(cmd, generators, generatorName); err != nil {
return err
}
// Generate new object
object, err := generator.Generate(params)
if err != nil {
return err
}
resourceMapper := &resource.Mapper{
ObjectTyper: typer,
RESTMapper: mapper,
ClientMapper: resource.ClientMapperFunc(f.ClientForMapping),
Decoder: f.Decoder(true),
}
hpa, err := resourceMapper.InfoForObject(object, nil)
if err != nil {
return err
}
if cmdutil.ShouldRecord(cmd, hpa) {
if err := cmdutil.RecordChangeCause(hpa.Object, f.Command()); err != nil {
return err
}
object = hpa.Object
}
if cmdutil.GetDryRunFlag(cmd) {
return f.PrintObject(cmd, mapper, object, out)
}
if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), hpa, f.JSONEncoder()); err != nil {
return err
}
object, err = resource.NewHelper(hpa.Client, hpa.Mapping).Create(namespace, false, object)
if err != nil {
return err
}
count++
if len(cmdutil.GetFlagString(cmd, "output")) > 0 {
return f.PrintObject(cmd, mapper, object, out)
}
cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, cmdutil.GetDryRunFlag(cmd), "autoscaled")
return nil
})
if err != nil {
return err
}
if count == 0 {
return fmt.Errorf("no objects passed to autoscale")
}
return nil
}
func RunExpose(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *ExposeOptions) error {
namespace, enforceNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
mapper, typer := f.Object()
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
ContinueOnError().
NamespaceParam(namespace).DefaultNamespace().
FilenameParam(enforceNamespace, options.Filenames...).
ResourceTypeOrNameArgs(false, args...).
Flatten().
Do()
infos, err := r.Infos()
if err != nil {
return err
}
if len(infos) > 1 {
return fmt.Errorf("multiple resources provided: %v", args)
}
info := infos[0]
mapping := info.ResourceMapping()
if err := f.CanBeExposed(mapping.GroupVersionKind.GroupKind()); err != nil {
return err
}
// Get the input object
inputObject, err := r.Object()
if err != nil {
return err
}
// Get the generator, setup and validate all required parameters
generatorName := cmdutil.GetFlagString(cmd, "generator")
generators := f.Generators("expose")
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)
name := info.Name
if len(name) > validation.DNS952LabelMaxLength {
name = name[:validation.DNS952LabelMaxLength]
}
params["default-name"] = name
// For objects that need a pod selector, derive it from the exposed object in case a user
// didn't explicitly specify one via --selector
if s, found := params["selector"]; found && kubectl.IsZero(s) {
s, err := f.PodSelectorForObject(inputObject)
if err != nil {
return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find selectors via --selector flag or introspection: %s", err))
}
params["selector"] = s
}
// For objects that need a port, derive it from the exposed object in case a user
// didn't explicitly specify one via --port
if port, found := params["port"]; found && kubectl.IsZero(port) {
ports, err := f.PortsForObject(inputObject)
if err != nil {
return cmdutil.UsageError(cmd, fmt.Sprintf("couldn't find port via --port flag or introspection: %s", err))
}
switch len(ports) {
case 0:
return cmdutil.UsageError(cmd, "couldn't find port via --port flag or introspection")
case 1:
params["port"] = ports[0]
default:
params["ports"] = strings.Join(ports, ",")
}
}
if kubectl.IsZero(params["labels"]) {
labels, err := f.LabelsForObject(inputObject)
if err != nil {
return err
}
params["labels"] = kubectl.MakeLabels(labels)
}
if err = kubectl.ValidateParams(names, params); err != nil {
return err
}
// Check for invalid flags used against the present generator.
if err := kubectl.EnsureFlagsValid(cmd, generators, generatorName); err != nil {
return err
}
// Generate new object
object, err := generator.Generate(params)
if err != nil {
return err
}
if inline := cmdutil.GetFlagString(cmd, "overrides"); len(inline) > 0 {
object, err = cmdutil.Merge(object, inline, mapping.GroupVersionKind.Kind)
if err != nil {
return err
}
}
resourceMapper := &resource.Mapper{ObjectTyper: typer, RESTMapper: mapper, ClientMapper: f.ClientMapperForCommand()}
info, err = resourceMapper.InfoForObject(object)
if err != nil {
return err
}
// TODO: extract this flag to a central location, when such a location exists.
if cmdutil.GetFlagBool(cmd, "dry-run") {
return f.PrintObject(cmd, object, out)
}
if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info); err != nil {
return err
}
// Serialize the object with the annotation applied.
object, err = resource.NewHelper(info.Client, info.Mapping).Create(namespace, false, object)
if err != nil {
return err
}
if len(cmdutil.GetFlagString(cmd, "output")) > 0 {
return f.PrintObject(cmd, object, out)
}
cmdutil.PrintSuccess(mapper, false, out, info.Mapping.Resource, info.Name, "exposed")
return nil
}