mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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343 lines
12 KiB
Go
343 lines
12 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package create
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import (
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"github.com/spf13/cobra"
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"k8s.io/api/core/v1"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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"k8s.io/kubectl/pkg/util/i18n"
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"k8s.io/kubectl/pkg/util/templates"
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cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
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"k8s.io/kubernetes/pkg/kubectl/generate"
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generateversioned "k8s.io/kubernetes/pkg/kubectl/generate/versioned"
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)
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// NewCmdCreateService is a macro command to create a new service
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func NewCmdCreateService(f cmdutil.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
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cmd := &cobra.Command{
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Use: "service",
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Aliases: []string{"svc"},
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Short: i18n.T("Create a service using specified subcommand."),
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Long: "Create a service using specified subcommand.",
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Run: cmdutil.DefaultSubCommandRun(ioStreams.ErrOut),
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}
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cmd.AddCommand(NewCmdCreateServiceClusterIP(f, ioStreams))
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cmd.AddCommand(NewCmdCreateServiceNodePort(f, ioStreams))
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cmd.AddCommand(NewCmdCreateServiceLoadBalancer(f, ioStreams))
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cmd.AddCommand(NewCmdCreateServiceExternalName(f, ioStreams))
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return cmd
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}
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var (
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serviceClusterIPLong = templates.LongDesc(i18n.T(`
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Create a ClusterIP service with the specified name.`))
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serviceClusterIPExample = templates.Examples(i18n.T(`
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# Create a new ClusterIP service named my-cs
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kubectl create service clusterip my-cs --tcp=5678:8080
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# Create a new ClusterIP service named my-cs (in headless mode)
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kubectl create service clusterip my-cs --clusterip="None"`))
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)
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func addPortFlags(cmd *cobra.Command) {
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cmd.Flags().StringSlice("tcp", []string{}, "Port pairs can be specified as '<port>:<targetPort>'.")
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}
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// ServiceClusterIPOpts holds the options for 'create service clusterip' sub command
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type ServiceClusterIPOpts struct {
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CreateSubcommandOptions *CreateSubcommandOptions
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}
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// NewCmdCreateServiceClusterIP is a command to create a ClusterIP service
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func NewCmdCreateServiceClusterIP(f cmdutil.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
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options := &ServiceClusterIPOpts{
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CreateSubcommandOptions: NewCreateSubcommandOptions(ioStreams),
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}
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cmd := &cobra.Command{
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Use: "clusterip NAME [--tcp=<port>:<targetPort>] [--dry-run]",
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DisableFlagsInUseLine: true,
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Short: i18n.T("Create a ClusterIP service."),
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Long: serviceClusterIPLong,
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Example: serviceClusterIPExample,
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Run: func(cmd *cobra.Command, args []string) {
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cmdutil.CheckErr(options.Complete(f, cmd, args))
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cmdutil.CheckErr(options.Run())
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},
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}
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options.CreateSubcommandOptions.PrintFlags.AddFlags(cmd)
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cmdutil.AddApplyAnnotationFlags(cmd)
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cmdutil.AddValidateFlags(cmd)
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cmdutil.AddGeneratorFlags(cmd, generateversioned.ServiceClusterIPGeneratorV1Name)
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addPortFlags(cmd)
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cmd.Flags().String("clusterip", "", i18n.T("Assign your own ClusterIP or set to 'None' for a 'headless' service (no loadbalancing)."))
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return cmd
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}
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func errUnsupportedGenerator(cmd *cobra.Command, generatorName string) error {
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return cmdutil.UsageErrorf(cmd, "Generator %s not supported. ", generatorName)
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}
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// Complete completes all the required options
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func (o *ServiceClusterIPOpts) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
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name, err := NameFromCommandArgs(cmd, args)
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if err != nil {
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return err
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}
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var generator generate.StructuredGenerator
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switch generatorName := cmdutil.GetFlagString(cmd, "generator"); generatorName {
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case generateversioned.ServiceClusterIPGeneratorV1Name:
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generator = &generateversioned.ServiceCommonGeneratorV1{
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Name: name,
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TCP: cmdutil.GetFlagStringSlice(cmd, "tcp"),
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Type: v1.ServiceTypeClusterIP,
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ClusterIP: cmdutil.GetFlagString(cmd, "clusterip"),
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}
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default:
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return errUnsupportedGenerator(cmd, generatorName)
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}
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return o.CreateSubcommandOptions.Complete(f, cmd, args, generator)
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}
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// Run calls the CreateSubcommandOptions.Run in ServiceClusterIPOpts instance
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func (o *ServiceClusterIPOpts) Run() error {
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return o.CreateSubcommandOptions.Run()
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}
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var (
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serviceNodePortLong = templates.LongDesc(i18n.T(`
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Create a NodePort service with the specified name.`))
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serviceNodePortExample = templates.Examples(i18n.T(`
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# Create a new NodePort service named my-ns
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kubectl create service nodeport my-ns --tcp=5678:8080`))
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)
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// ServiceNodePortOpts holds the options for 'create service nodeport' sub command
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type ServiceNodePortOpts struct {
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CreateSubcommandOptions *CreateSubcommandOptions
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}
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// NewCmdCreateServiceNodePort is a macro command for creating a NodePort service
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func NewCmdCreateServiceNodePort(f cmdutil.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
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options := &ServiceNodePortOpts{
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CreateSubcommandOptions: NewCreateSubcommandOptions(ioStreams),
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}
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cmd := &cobra.Command{
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Use: "nodeport NAME [--tcp=port:targetPort] [--dry-run]",
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DisableFlagsInUseLine: true,
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Short: i18n.T("Create a NodePort service."),
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Long: serviceNodePortLong,
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Example: serviceNodePortExample,
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Run: func(cmd *cobra.Command, args []string) {
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cmdutil.CheckErr(options.Complete(f, cmd, args))
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cmdutil.CheckErr(options.Run())
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},
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}
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options.CreateSubcommandOptions.PrintFlags.AddFlags(cmd)
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cmdutil.AddApplyAnnotationFlags(cmd)
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cmdutil.AddValidateFlags(cmd)
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cmdutil.AddGeneratorFlags(cmd, generateversioned.ServiceNodePortGeneratorV1Name)
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cmd.Flags().Int("node-port", 0, "Port used to expose the service on each node in a cluster.")
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addPortFlags(cmd)
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return cmd
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}
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// Complete completes all the required options
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func (o *ServiceNodePortOpts) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
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name, err := NameFromCommandArgs(cmd, args)
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if err != nil {
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return err
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}
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var generator generate.StructuredGenerator
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switch generatorName := cmdutil.GetFlagString(cmd, "generator"); generatorName {
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case generateversioned.ServiceNodePortGeneratorV1Name:
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generator = &generateversioned.ServiceCommonGeneratorV1{
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Name: name,
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TCP: cmdutil.GetFlagStringSlice(cmd, "tcp"),
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Type: v1.ServiceTypeNodePort,
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ClusterIP: "",
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NodePort: cmdutil.GetFlagInt(cmd, "node-port"),
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}
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default:
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return errUnsupportedGenerator(cmd, generatorName)
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}
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return o.CreateSubcommandOptions.Complete(f, cmd, args, generator)
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}
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// Run calls the CreateSubcommandOptions.Run in ServiceNodePortOpts instance
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func (o *ServiceNodePortOpts) Run() error {
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return o.CreateSubcommandOptions.Run()
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}
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var (
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serviceLoadBalancerLong = templates.LongDesc(i18n.T(`
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Create a LoadBalancer service with the specified name.`))
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serviceLoadBalancerExample = templates.Examples(i18n.T(`
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# Create a new LoadBalancer service named my-lbs
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kubectl create service loadbalancer my-lbs --tcp=5678:8080`))
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)
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// ServiceLoadBalancerOpts holds the options for 'create service loadbalancer' sub command
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type ServiceLoadBalancerOpts struct {
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CreateSubcommandOptions *CreateSubcommandOptions
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}
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// NewCmdCreateServiceLoadBalancer is a macro command for creating a LoadBalancer service
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func NewCmdCreateServiceLoadBalancer(f cmdutil.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
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options := &ServiceLoadBalancerOpts{
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CreateSubcommandOptions: NewCreateSubcommandOptions(ioStreams),
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}
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cmd := &cobra.Command{
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Use: "loadbalancer NAME [--tcp=port:targetPort] [--dry-run]",
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DisableFlagsInUseLine: true,
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Short: i18n.T("Create a LoadBalancer service."),
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Long: serviceLoadBalancerLong,
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Example: serviceLoadBalancerExample,
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Run: func(cmd *cobra.Command, args []string) {
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cmdutil.CheckErr(options.Complete(f, cmd, args))
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cmdutil.CheckErr(options.Run())
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},
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}
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options.CreateSubcommandOptions.PrintFlags.AddFlags(cmd)
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cmdutil.AddApplyAnnotationFlags(cmd)
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cmdutil.AddValidateFlags(cmd)
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cmdutil.AddGeneratorFlags(cmd, generateversioned.ServiceLoadBalancerGeneratorV1Name)
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addPortFlags(cmd)
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return cmd
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}
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// Complete completes all the required options
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func (o *ServiceLoadBalancerOpts) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
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name, err := NameFromCommandArgs(cmd, args)
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if err != nil {
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return err
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}
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var generator generate.StructuredGenerator
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switch generatorName := cmdutil.GetFlagString(cmd, "generator"); generatorName {
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case generateversioned.ServiceLoadBalancerGeneratorV1Name:
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generator = &generateversioned.ServiceCommonGeneratorV1{
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Name: name,
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TCP: cmdutil.GetFlagStringSlice(cmd, "tcp"),
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Type: v1.ServiceTypeLoadBalancer,
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ClusterIP: "",
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}
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default:
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return errUnsupportedGenerator(cmd, generatorName)
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}
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return o.CreateSubcommandOptions.Complete(f, cmd, args, generator)
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}
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// Run calls the CreateSubcommandOptions.Run in ServiceLoadBalancerOpts instance
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func (o *ServiceLoadBalancerOpts) Run() error {
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return o.CreateSubcommandOptions.Run()
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}
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var (
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serviceExternalNameLong = templates.LongDesc(i18n.T(`
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Create an ExternalName service with the specified name.
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ExternalName service references to an external DNS address instead of
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only pods, which will allow application authors to reference services
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that exist off platform, on other clusters, or locally.`))
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serviceExternalNameExample = templates.Examples(i18n.T(`
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# Create a new ExternalName service named my-ns
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kubectl create service externalname my-ns --external-name bar.com`))
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)
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// ServiceExternalNameOpts holds the options for 'create service externalname' sub command
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type ServiceExternalNameOpts struct {
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CreateSubcommandOptions *CreateSubcommandOptions
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}
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// NewCmdCreateServiceExternalName is a macro command for creating an ExternalName service
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func NewCmdCreateServiceExternalName(f cmdutil.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
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options := &ServiceExternalNameOpts{
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CreateSubcommandOptions: NewCreateSubcommandOptions(ioStreams),
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}
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cmd := &cobra.Command{
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Use: "externalname NAME --external-name external.name [--dry-run]",
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DisableFlagsInUseLine: true,
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Short: i18n.T("Create an ExternalName service."),
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Long: serviceExternalNameLong,
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Example: serviceExternalNameExample,
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Run: func(cmd *cobra.Command, args []string) {
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cmdutil.CheckErr(options.Complete(f, cmd, args))
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cmdutil.CheckErr(options.Run())
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},
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}
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options.CreateSubcommandOptions.PrintFlags.AddFlags(cmd)
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cmdutil.AddApplyAnnotationFlags(cmd)
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cmdutil.AddValidateFlags(cmd)
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cmdutil.AddGeneratorFlags(cmd, generateversioned.ServiceExternalNameGeneratorV1Name)
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addPortFlags(cmd)
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cmd.Flags().String("external-name", "", i18n.T("External name of service"))
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cmd.MarkFlagRequired("external-name")
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return cmd
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}
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// Complete completes all the required options
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func (o *ServiceExternalNameOpts) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
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name, err := NameFromCommandArgs(cmd, args)
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if err != nil {
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return err
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}
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var generator generate.StructuredGenerator
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switch generatorName := cmdutil.GetFlagString(cmd, "generator"); generatorName {
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case generateversioned.ServiceExternalNameGeneratorV1Name:
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generator = &generateversioned.ServiceCommonGeneratorV1{
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Name: name,
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Type: v1.ServiceTypeExternalName,
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ExternalName: cmdutil.GetFlagString(cmd, "external-name"),
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ClusterIP: "",
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}
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default:
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return errUnsupportedGenerator(cmd, generatorName)
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}
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return o.CreateSubcommandOptions.Complete(f, cmd, args, generator)
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}
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// Run calls the CreateSubcommandOptions.Run in ServiceExternalNameOpts instance
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func (o *ServiceExternalNameOpts) Run() error {
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return o.CreateSubcommandOptions.Run()
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}
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