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Merge pull request #36040 from bruceauyeung/add-master-address-desc-into-kubeadm-join-and-some-validations 

Automatic merge from submit-queue

add master address into kubeadm join help message and some validations

**What this PR does / why we need it**:

1, add master address into kubeadm join help message. looks like :

>Usage:
>  kubeadm join <master address> [flags]

2, when user provides more than one master address, return an error.

3, since `kubeadm join` not only support ip addresses but also host names or domain names, so i delete the word `ip` from error message `must specify master ip address (see --help)`


Signed-off-by: bruceauyeung <ouyang.qinhua@zte.com.cn>
pull/6/head
Kubernetes Submit Queue 2016-11-08 14:52:09 -08:00 committed by GitHub
parent c8a572310f 3616a04177
commit 9761442b19
1 changed files with 5 additions and 3 deletions
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8
cmd/kubeadm/app/cmd/join.go
View File

@ -55,7 +55,7 @@ func NewCmdJoin(out io.Writer) *cobra.Command {
var cfgPath string
cmd := &cobra.Command{
Use: "join",
Use: "join <master address>",
Short: "Run this on any machine you wish to join an existing cluster",
Run: func(cmd *cobra.Command, args []string) {
j, err := NewJoin(cfgPath, args, &cfg, skipPreFlight)
@ -104,11 +104,13 @@ func NewJoin(cfgPath string, args []string, cfg *kubeadmapi.NodeConfiguration, s
}
}
// TODO(phase1+) this we are missing args from the help text, there should be a way to tell cobra about it
if len(args) == 0 && len(cfg.MasterAddresses) == 0 {
return nil, fmt.Errorf("must specify master IP address (see --help)")
return nil, fmt.Errorf("must specify master address (see --help)")
}
cfg.MasterAddresses = append(cfg.MasterAddresses, args...)
if len(cfg.MasterAddresses) > 1 {
return nil, fmt.Errorf("Must not specify more than one master address (see --help)")
}
if !skipPreFlight {
fmt.Println("Running pre-flight checks")