// RunScale executes the scaling
func RunScale(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, shortOutput bool) 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 RESOURCE NAME")
}
cmdNamespace, _, 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...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
mapping, err := r.ResourceMapping()
if err != nil {
return err
}
infos, err := r.Infos()
if err != nil {
return err
}
if len(infos) > 1 {
return fmt.Errorf("multiple resources provided: %v", args)
}
info := infos[0]
scaler, err := f.Scaler(mapping)
if err != nil {
return err
}
resourceVersion := cmdutil.GetFlagString(cmd, "resource-version")
currentSize := cmdutil.GetFlagInt(cmd, "current-replicas")
precondition := &kubectl.ScalePrecondition{currentSize, resourceVersion}
retry := kubectl.NewRetryParams(kubectl.Interval, kubectl.Timeout)
waitForReplicas := kubectl.NewRetryParams(kubectl.Interval, kubectl.Timeout)
if err := scaler.Scale(info.Namespace, info.Name, uint(count), precondition, retry, waitForReplicas); err != nil {
return err
}
cmdutil.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, "scaled")
return nil
}
func RunResize(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
count := cmdutil.GetFlagInt(cmd, "replicas")
if len(args) != 2 || count < 0 {
return cmdutil.UsageError(cmd, "--replicas=COUNT RESOURCE ID")
}
cmdNamespace, 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...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
mapping, err := r.ResourceMapping()
if err != nil {
return err
}
infos, err := r.Infos()
if err != nil {
return err
}
info := infos[0]
resizer, err := f.Resizer(mapping)
if err != nil {
return err
}
resourceVersion := cmdutil.GetFlagString(cmd, "resource-version")
currentSize := cmdutil.GetFlagInt(cmd, "current-replicas")
precondition := &kubectl.ResizePrecondition{currentSize, resourceVersion}
cond := kubectl.ResizeCondition(resizer, precondition, info.Namespace, info.Name, uint(count))
msg := "resized"
if err = wait.Poll(retryFrequency, retryTimeout, cond); err != nil {
msg = fmt.Sprintf("Failed to resize controller in spite of retrying for %s", retryTimeout)
if err != nil {
return err
}
}
fmt.Fprintf(out, "%s\n", msg)
return nil
}
func RunProxy(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command) error {
port := cmdutil.GetFlagInt(cmd, "port")
fmt.Fprintf(out, "Starting to serve on localhost:%d", port)
clientConfig, err := f.ClientConfig()
if err != nil {
return err
}
staticPrefix := cmdutil.GetFlagString(cmd, "www-prefix")
if !strings.HasSuffix(staticPrefix, "/") {
staticPrefix += "/"
}
apiProxyPrefix := cmdutil.GetFlagString(cmd, "api-prefix")
if !strings.HasSuffix(apiProxyPrefix, "/") {
apiProxyPrefix += "/"
}
server, err := kubectl.NewProxyServer(cmdutil.GetFlagString(cmd, "www"), apiProxyPrefix, staticPrefix, clientConfig)
if err != nil {
return err
}
glog.Fatal(server.Serve(port))
return nil
}
func RunResize(f *Factory, out io.Writer, cmd *cobra.Command, args []string) error {
count := util.GetFlagInt(cmd, "replicas")
if len(args) != 2 || count < 0 {
return util.UsageError(cmd, "--replicas=COUNT RESOURCE ID")
}
cmdNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
mapper, _ := f.Object()
// TODO: use resource.Builder instead
mapping, namespace, name, err := util.ResourceFromArgs(cmd, args, mapper, cmdNamespace)
if err != nil {
return err
}
resizer, err := f.Resizer(mapping)
if err != nil {
return err
}
resourceVersion := util.GetFlagString(cmd, "resource-version")
currentSize := util.GetFlagInt(cmd, "current-replicas")
precondition := &kubectl.ResizePrecondition{currentSize, resourceVersion}
cond := kubectl.ResizeCondition(resizer, precondition, namespace, name, uint(count))
msg := "resized"
if err = wait.Poll(retryFrequency, retryTimeout, cond); err != nil {
msg = fmt.Sprintf("Failed to resize controller in spite of retrying for %s", retryTimeout)
if err != nil {
return err
}
}
fmt.Fprintf(out, "%s\n", msg)
return nil
}
// validateFlags filters out flags that are not supposed to be used
// when exposing a resource; depends on the provided generator
func validateFlags(cmd *cobra.Command, generator string) error {
invalidFlags := []string{}
if generator == "service/v1" {
if len(cmdutil.GetFlagString(cmd, "hostname")) != 0 {
invalidFlags = append(invalidFlags, "--hostname")
}
} else if generator == "route/v1" {
if len(cmdutil.GetFlagString(cmd, "protocol")) != 0 {
invalidFlags = append(invalidFlags, "--protocol")
}
if len(cmdutil.GetFlagString(cmd, "type")) != 0 {
invalidFlags = append(invalidFlags, "--type")
}
if len(cmdutil.GetFlagString(cmd, "selector")) != 0 {
invalidFlags = append(invalidFlags, "--selector")
}
if len(cmdutil.GetFlagString(cmd, "container-port")) != 0 {
invalidFlags = append(invalidFlags, "--container-port")
}
if len(cmdutil.GetFlagString(cmd, "target-port")) != 0 {
invalidFlags = append(invalidFlags, "--target-port")
}
if len(cmdutil.GetFlagString(cmd, "public-ip")) != 0 {
invalidFlags = append(invalidFlags, "--public-ip")
}
if cmdutil.GetFlagInt(cmd, "port") != -1 {
invalidFlags = append(invalidFlags, "--port")
}
if cmdutil.GetFlagBool(cmd, "create-external-load-balancer") {
invalidFlags = append(invalidFlags, "--create-external-load-balancer")
}
}
msg := ""
switch len(invalidFlags) {
case 0:
return nil
case 1:
msg = invalidFlags[0]
default:
commaSeparated, last := invalidFlags[:len(invalidFlags)-1], invalidFlags[len(invalidFlags)-1]
msg = fmt.Sprintf("%s or %s", strings.Join(commaSeparated, ", "), last)
}
return fmt.Errorf("cannot use %s when generating a %s", msg, strings.Split(generator, "/")[0])
}
func RunProxy(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command) error {
port := cmdutil.GetFlagInt(cmd, "port")
clientConfig, err := f.ClientConfig()
if err != nil {
return err
}
staticPrefix := cmdutil.GetFlagString(cmd, "www-prefix")
if !strings.HasSuffix(staticPrefix, "/") {
staticPrefix += "/"
}
apiProxyPrefix := cmdutil.GetFlagString(cmd, "api-prefix")
if !strings.HasSuffix(apiProxyPrefix, "/") {
apiProxyPrefix += "/"
}
filter := &kubectl.FilterServer{
AcceptPaths: kubectl.MakeRegexpArrayOrDie(cmdutil.GetFlagString(cmd, "accept-paths")),
RejectPaths: kubectl.MakeRegexpArrayOrDie(cmdutil.GetFlagString(cmd, "reject-paths")),
AcceptHosts: kubectl.MakeRegexpArrayOrDie(cmdutil.GetFlagString(cmd, "accept-hosts")),
}
if cmdutil.GetFlagBool(cmd, "disable-filter") {
glog.Warning("Request filter disabled, your proxy is vulnerable to XSRF attacks, please be cautious")
filter = nil
}
server, err := kubectl.NewProxyServer(port, cmdutil.GetFlagString(cmd, "www"), apiProxyPrefix, staticPrefix, filter, clientConfig)
if err != nil {
return err
}
// Separate listening from serving so we can report the bound port
// when it is chosen by os (port == 0)
l, err := server.Listen()
if err != nil {
glog.Fatal(err)
}
fmt.Fprintf(out, "Starting to serve on %s", l.Addr().String())
glog.Fatal(server.ServeOnListener(l))
return nil
}
func RunStop(f *cmdutil.Factory, cmd *cobra.Command, args []string, filenames util.StringList, out io.Writer) error {
cmdNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
mapper, typer := f.Object()
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
ContinueOnError().
NamespaceParam(cmdNamespace).RequireNamespace().
ResourceTypeOrNameArgs(false, args...).
FilenameParam(filenames...).
SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
SelectAllParam(cmdutil.GetFlagBool(cmd, "all")).
Flatten().
Do()
if r.Err() != nil {
return r.Err()
}
return ReapResult(r, f, out, false, cmdutil.GetFlagInt(cmd, "grace-period"))
}
func RunProxy(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command) error {
port := cmdutil.GetFlagInt(cmd, "port")
fmt.Fprintf(out, "Starting to serve on localhost:%d", port)
clientConfig, err := f.ClientConfig()
if err != nil {
return err
}
staticPrefix := cmdutil.GetFlagString(cmd, "www-prefix")
if !strings.HasSuffix(staticPrefix, "/") {
staticPrefix += "/"
}
apiProxyPrefix := cmdutil.GetFlagString(cmd, "api-prefix")
if !strings.HasSuffix(apiProxyPrefix, "/") {
apiProxyPrefix += "/"
}
filter := &kubectl.FilterServer{
AcceptPaths: kubectl.MakeRegexpArrayOrDie(cmdutil.GetFlagString(cmd, "accept-paths")),
RejectPaths: kubectl.MakeRegexpArrayOrDie(cmdutil.GetFlagString(cmd, "reject-paths")),
AcceptHosts: kubectl.MakeRegexpArrayOrDie(cmdutil.GetFlagString(cmd, "accept-hosts")),
}
if cmdutil.GetFlagBool(cmd, "disable-filter") {
glog.Warning("Request filter disabled, your proxy is vulnerable to XSRF attacks, please be cautious")
filter = nil
}
server, err := kubectl.NewProxyServer(cmdutil.GetFlagString(cmd, "www"), apiProxyPrefix, staticPrefix, filter, clientConfig)
if err != nil {
return err
}
glog.Fatal(server.Serve(port))
return nil
}
func RunDelete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames util.StringList, shortOutput bool) 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, 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
}
}
// 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 forceReplace(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames util.StringList) error {
schema, err := f.Validator()
if err != nil {
return err
}
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, 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"))
} else {
err = DeleteResult(r, out, ignoreNotFound)
}
if err != nil {
return err
}
r = resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
Schema(schema).
ContinueOnError().
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(enforceNamespace, filenames...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
count := 0
err = r.Visit(func(info *resource.Info) error {
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)
fmt.Fprintf(out, "%s/%s\n", info.Mapping.Resource, info.Name)
return nil
})
if err != nil {
return err
}
if count == 0 {
return fmt.Errorf("no objects passed to replace")
}
return nil
}
func RunExpose(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
namespace, _, err := f.DefaultNamespace()
if err != nil {
return err
}
mapper, typer := f.Object()
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
ContinueOnError().
NamespaceParam(namespace).DefaultNamespace().
ResourceTypeOrNameArgs(false, args...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
mapping, err := r.ResourceMapping()
if err != nil {
return err
}
infos, err := r.Infos()
if err != nil {
return err
}
if len(infos) > 1 {
return fmt.Errorf("multiple resources provided: %v", args)
}
info := infos[0]
// Get the input object
client, err := f.RESTClient(mapping)
if err != nil {
return err
}
inputObject, err := resource.NewHelper(client, mapping).Get(info.Namespace, info.Name)
if err != nil {
return err
}
// Get the generator, setup and validate all required parameters
generatorName := cmdutil.GetFlagString(cmd, "generator")
generator, found := f.Generator(generatorName)
if !found {
return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q not found.", generatorName))
}
names := generator.ParamNames()
params := kubectl.MakeParams(cmd, names)
params["default-name"] = info.Name
if s, found := params["selector"]; !found || len(s) == 0 || cmdutil.GetFlagInt(cmd, "port") < 1 {
if len(s) == 0 {
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
}
noPorts := true
for _, param := range names {
if param.Name == "port" {
noPorts = false
break
}
}
if cmdutil.GetFlagInt(cmd, "port") < 0 && !noPorts {
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:
return cmdutil.UsageError(cmd, fmt.Sprintf("multiple ports to choose from: %v, please explicitly specify a port using the --port flag.", ports))
}
}
}
if cmdutil.GetFlagBool(cmd, "create-external-load-balancer") {
params["create-external-load-balancer"] = "true"
}
if len(params["labels"]) == 0 {
labels, err := f.LabelsForObject(inputObject)
if err != nil {
return err
}
params["labels"] = kubectl.MakeLabels(labels)
}
if v := cmdutil.GetFlagString(cmd, "type"); v != "" {
params["type"] = v
}
err = kubectl.ValidateParams(names, params)
if err != nil {
return err
}
// Expose new object
object, err := generator.Generate(params)
if err != nil {
return err
}
inline := cmdutil.GetFlagString(cmd, "overrides")
if len(inline) > 0 {
object, err = cmdutil.Merge(object, inline, mapping.Kind)
if err != nil {
return err
}
}
// TODO: extract this flag to a central location, when such a location exists.
if !cmdutil.GetFlagBool(cmd, "dry-run") {
resourceMapper := &resource.Mapper{typer, mapper, f.ClientMapperForCommand()}
info, err := resourceMapper.InfoForObject(object)
if err != nil {
return err
}
data, err := info.Mapping.Codec.Encode(object)
if err != nil {
return err
}
_, err = resource.NewHelper(info.Client, info.Mapping).Create(namespace, false, data)
if err != nil {
return err
}
}
return f.PrintObject(cmd, object, out)
}
func RunDelete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, filenames util.StringList) 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().
FilenameParam(enforceNamespace, filenames...).
SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
SelectAllParam(cmdutil.GetFlagBool(cmd, "all")).
ResourceTypeOrNameArgs(false, args...).RequireObject(false).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
ignoreNotFound := cmdutil.GetFlagBool(cmd, "ignore-not-found")
// 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"))
}
return DeleteResult(r, out, ignoreNotFound)
}
// RunScale executes the scaling
func RunScale(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, shortOutput bool) 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 TYPE NAME")
}
cmdNamespace, _, 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...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
mapping, err := r.ResourceMapping()
if err != nil {
return err
}
infos, err := r.Infos()
if err != nil {
return err
}
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{currentSize, 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 errors.NewAggregate(errs)
}
func RunExpose(f *Factory, out io.Writer, cmd *cobra.Command, args []string) error {
if len(args) != 1 {
return util.UsageError(cmd, "<name> is required for expose")
}
namespace, err := f.DefaultNamespace()
if err != nil {
return err
}
client, err := f.Client()
if err != nil {
return err
}
generatorName := util.GetFlagString(cmd, "generator")
generator, found := kubectl.Generators[generatorName]
if !found {
return util.UsageError(cmd, fmt.Sprintf("Generator: %s not found.", generator))
}
if util.GetFlagInt(cmd, "port") < 1 {
return util.UsageError(cmd, "--port is required and must be a positive integer.")
}
names := generator.ParamNames()
params := kubectl.MakeParams(cmd, names)
if len(util.GetFlagString(cmd, "service-name")) == 0 {
params["name"] = args[0]
} else {
params["name"] = util.GetFlagString(cmd, "service-name")
}
if _, found := params["selector"]; !found {
rc, err := client.ReplicationControllers(namespace).Get(args[0])
if err != nil {
return err
}
params["selector"] = kubectl.MakeLabels(rc.Spec.Selector)
}
if util.GetFlagBool(cmd, "create-external-load-balancer") {
params["create-external-load-balancer"] = "true"
}
err = kubectl.ValidateParams(names, params)
if err != nil {
return err
}
service, err := generator.Generate(params)
if err != nil {
return err
}
inline := util.GetFlagString(cmd, "overrides")
if len(inline) > 0 {
service, err = util.Merge(service, inline, "Service")
if err != nil {
return err
}
}
// TODO: extract this flag to a central location, when such a location exists.
if !util.GetFlagBool(cmd, "dry-run") {
service, err = client.Services(namespace).Create(service.(*api.Service))
if err != nil {
return err
}
}
return f.PrintObject(cmd, service, out)
}
func RunExpose(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string) error {
var name, resource string
switch l := len(args); {
case l == 2:
resource, name = args[0], args[1]
default:
return cmdutil.UsageError(cmd, "the type and name of a resource to expose are required arguments")
}
namespace, err := f.DefaultNamespace()
if err != nil {
return err
}
client, err := f.Client()
if err != nil {
return err
}
generatorName := cmdutil.GetFlagString(cmd, "generator")
generator, found := kubectl.Generators[generatorName]
if !found {
return cmdutil.UsageError(cmd, fmt.Sprintf("generator %q not found.", generator))
}
names := generator.ParamNames()
params := kubectl.MakeParams(cmd, names)
if len(cmdutil.GetFlagString(cmd, "service-name")) == 0 {
params["name"] = name
} else {
params["name"] = cmdutil.GetFlagString(cmd, "service-name")
}
if s, found := params["selector"]; !found || len(s) == 0 || cmdutil.GetFlagInt(cmd, "port") < 1 {
mapper, _ := f.Object()
v, k, err := mapper.VersionAndKindForResource(resource)
if err != nil {
return err
}
mapping, err := mapper.RESTMapping(k, v)
if err != nil {
return err
}
if len(s) == 0 {
s, err := f.PodSelectorForResource(mapping, namespace, name)
if err != nil {
return err
}
params["selector"] = s
}
if cmdutil.GetFlagInt(cmd, "port") < 0 {
ports, err := f.PortsForResource(mapping, namespace, name)
if err != nil {
return err
}
if len(ports) == 0 {
return cmdutil.UsageError(cmd, "couldn't find a suitable port via --port flag or introspection")
}
if len(ports) > 1 {
return cmdutil.UsageError(cmd, "more than one port to choose from, please explicitly specify a port using the --port flag.")
}
params["port"] = ports[0]
}
}
if cmdutil.GetFlagBool(cmd, "create-external-load-balancer") {
params["create-external-load-balancer"] = "true"
}
err = kubectl.ValidateParams(names, params)
if err != nil {
return err
}
service, err := generator.Generate(params)
if err != nil {
return err
}
inline := cmdutil.GetFlagString(cmd, "overrides")
if len(inline) > 0 {
service, err = cmdutil.Merge(service, inline, "Service")
if err != nil {
return err
}
}
// TODO: extract this flag to a central location, when such a location exists.
if !cmdutil.GetFlagBool(cmd, "dry-run") {
service, err = client.Services(namespace).Create(service.(*api.Service))
if err != nil {
return err
}
}
return f.PrintObject(cmd, service, out)
}