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etcdctl: take a name and print out the initial cluster

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To help the user lets print out the configuration that they will need to give
to their new member:

$ etcdctl member add infra4 http://localhost:7004
added member 9bf1b35fc7761a23 to cluster
ETCD_NAME="infra4"
ETCD_INITIAL_CLUSTER="node2=http://localhost:7002,node3=http://localhost:7003,infra4=http://localhost:7004,node1=http://localhost:7001"

This is a little weird because the API doesn't take a name so the user gives us
a name and we just pass it on through.
This commit is contained in:
Brandon Philips 2014-10-31 14:47:30 -07:00
parent 8f3be206ed
commit 6b4485d1ae
1 changed files with 30 additions and 6 deletions
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36
etcdctl/command/member_commands.go
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@ -12,8 +12,8 @@ import (
func NewMemberCommand() cli.Command {
return cli.Command{
Name: "member",
Usage: "member add, remove and list subcommands",
Name: "member",
Usage: "member add, remove and list subcommands",
Subcommands: []cli.Command{
cli.Command{
Name: "list",
@ -70,20 +70,44 @@ func actionMemberList(c *cli.Context) {
func actionMemberAdd(c *cli.Context) {
args := c.Args()
if len(args) != 1 {
fmt.Fprintln(os.Stderr, "Provide a single member peerURL")
if len(args) != 2 {
fmt.Fprintln(os.Stderr, "Provide a name and a single member peerURL")
os.Exit(1)
}
mAPI := mustNewMembersAPI(c)
url := args[0]
url := args[1]
m, err := mAPI.Add(url)
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
fmt.Printf("Added member to cluster with ID %s", m.ID)
newID := m.ID
newName := args[0]
fmt.Printf("Added member named %s with ID %s to cluster\n", newName, newID)
members, err := mAPI.List()
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
conf := []string{}
for _, m := range members {
for _, u := range m.PeerURLs {
n := m.Name
if m.ID == newID {
n = newName
}
conf = append(conf, fmt.Sprintf("%s=%s", n, u))
}
}
fmt.Printf("ETCD_NAME=%q\n", newName)
fmt.Printf("ETCD_INITIAL_CLUSTER=%q\n", strings.Join(conf, ","))
fmt.Printf("ETCD_INITIAL_CLUSTER_STATE=existing\n")
}
func actionMemberRemove(c *cli.Context) {