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Merge pull request #84591 from TheLastProject/feature/print-join-as-admin-command

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Let token create help with joining a master
This commit is contained in:
Kubernetes Prow Robot 2019-11-08 13:48:43 -08:00 committed by GitHub
commit 3c7706bf9c
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2 changed files with 26 additions and 9 deletions
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33
cmd/kubeadm/app/cmd/token.go
View File

@ -98,6 +98,7 @@ func NewCmdToken(out io.Writer, errW io.Writer) *cobra.Command {
var cfgPath string
var printJoinCommand bool
var certificateKey string
bto := options.NewBootstrapTokenOptions()
createCmd := &cobra.Command{
@ -132,13 +133,15 @@ func NewCmdToken(out io.Writer, errW io.Writer) *cobra.Command {
return err
}
return RunCreateToken(out, client, cfgPath, cfg, printJoinCommand, kubeConfigFile)
return RunCreateToken(out, client, cfgPath, cfg, printJoinCommand, certificateKey, kubeConfigFile)
},
}
options.AddConfigFlag(createCmd.Flags(), &cfgPath)
createCmd.Flags().BoolVar(&printJoinCommand,
"print-join-command", false, "Instead of printing only the token, print the full 'kubeadm join' flag needed to join the cluster using the token.")
createCmd.Flags().StringVar(&certificateKey,
options.CertificateKey, "", "When used together with '--print-join-command', print the full 'kubeadm join' flag needed to join the cluster as a control-plane. To create a new certificate key you must use 'kubeadm init phase upload-certs --upload-certs'.")
bto.AddTTLFlagWithName(createCmd.Flags(), "ttl")
bto.AddUsagesFlag(createCmd.Flags())
bto.AddGroupsFlag(createCmd.Flags())
@ -226,7 +229,7 @@ func NewCmdTokenGenerate(out io.Writer) *cobra.Command {
}
// RunCreateToken generates a new bootstrap token and stores it as a secret on the server.
func RunCreateToken(out io.Writer, client clientset.Interface, cfgPath string, initCfg *kubeadmapiv1beta2.InitConfiguration, printJoinCommand bool, kubeConfigFile string) error {
func RunCreateToken(out io.Writer, client clientset.Interface, cfgPath string, initCfg *kubeadmapiv1beta2.InitConfiguration, printJoinCommand bool, certificateKey string, kubeConfigFile string) error {
// ClusterConfiguration is needed just for the call to LoadOrDefaultInitConfiguration
clusterCfg := &kubeadmapiv1beta2.ClusterConfiguration{
// KubernetesVersion is not used, but we set this explicitly to avoid
@ -257,14 +260,28 @@ func RunCreateToken(out io.Writer, client clientset.Interface, cfgPath string, i
// otherwise, just print the token
if printJoinCommand {
skipTokenPrint := false
joinCommand, err := cmdutil.GetJoinWorkerCommand(kubeConfigFile, internalcfg.BootstrapTokens[0].Token.String(), skipTokenPrint)
if err != nil {
return errors.Wrap(err, "failed to get join command")
if certificateKey != "" {
skipCertificateKeyPrint := false
joinCommand, err := cmdutil.GetJoinControlPlaneCommand(kubeConfigFile, internalcfg.BootstrapTokens[0].Token.String(), certificateKey, skipTokenPrint, skipCertificateKeyPrint)
if err != nil {
return errors.Wrap(err, "failed to get join command")
}
joinCommand = strings.ReplaceAll(joinCommand, "\\\n", "")
joinCommand = strings.ReplaceAll(joinCommand, "\t", "")
fmt.Fprintln(out, joinCommand)
} else {
joinCommand, err := cmdutil.GetJoinWorkerCommand(kubeConfigFile, internalcfg.BootstrapTokens[0].Token.String(), skipTokenPrint)
if err != nil {
return errors.Wrap(err, "failed to get join command")
}
joinCommand = strings.ReplaceAll(joinCommand, "\\\n", "")
joinCommand = strings.ReplaceAll(joinCommand, "\t", "")
fmt.Fprintln(out, joinCommand)
}
joinCommand = strings.ReplaceAll(joinCommand, "\\\n", "")
joinCommand = strings.ReplaceAll(joinCommand, "\t", "")
fmt.Fprintln(out, joinCommand)
} else {
if certificateKey != "" {
return errors.Wrap(err, "cannot use --certificate-key without --print-join-command")
}
fmt.Fprintln(out, internalcfg.BootstrapTokens[0].Token.String())
}

2
cmd/kubeadm/app/cmd/token_test.go
View File

@ -172,7 +172,7 @@ func TestRunCreateToken(t *testing.T) {
},
}
err = RunCreateToken(&buf, fakeClient, "", cfg, tc.printJoin, "")
err = RunCreateToken(&buf, fakeClient, "", cfg, tc.printJoin, "", "")
if tc.expectedError && err == nil {
t.Error("unexpected success")
} else if !tc.expectedError && err != nil {