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kubeadm: add a warning about the default token TTL changing in 1.8 #48838

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merged 1 commit into from Jul 14, 2017
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kubeadm: add a warning about the default token TTL changing in 1.8 #48838

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6 changes: 6 additions & 0 deletions cmd/kubeadm/app/cmd/init.go
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Expand Up @@ -87,6 +87,12 @@ func NewCmdInit(out io.Writer) *cobra.Command {
i, err := NewInit(cfgPath, internalcfg, skipPreFlight, skipTokenPrint)
kubeadmutil.CheckErr(err)
kubeadmutil.CheckErr(i.Validate(cmd))

// TODO: remove this warning in 1.9
if !cmd.Flags().Lookup("token-ttl").Changed {
fmt.Println("[kubeadm] WARNING: starting in 1.8, tokens expire after 24 hours by default (if you require a non-expiring token use --token-ttl 0)")
}

kubeadmutil.CheckErr(i.Run(out))
},
}
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6 changes: 6 additions & 0 deletions cmd/kubeadm/app/cmd/token.go
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Expand Up @@ -109,6 +109,12 @@ func NewCmdToken(out io.Writer, errW io.Writer) *cobra.Command {
client, err := kubeconfigutil.ClientSetFromFile(kubeConfigFile)
kubeadmutil.CheckErr(err)

// TODO: remove this warning in 1.9
if !tokenCmd.Flags().Lookup("ttl").Changed {
// sending this output to stderr s
fmt.Fprintln(errW, "[kubeadm] WARNING: starting in 1.8, tokens expire after 24 hours by default (if you require a non-expiring token use --ttl 0)")
}

err = RunCreateToken(out, client, token, tokenDuration, usages, description)
kubeadmutil.CheckErr(err)
},
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