// RemoveInstanceFromDiscovery removes an instance from etcd discovery.
func RemoveInstanceFromDiscovery(i swarmtypes.Instance) error {
etcdMemberName, err := ssh.GetEtcd2MemberName(i.PublicIPAddress)
if err != nil {
return errgo.Mask(err)
}
// Not a quorum member
if etcdMemberName == "" {
return nil
}
discoveryUrl, err := ssh.GetEtcdDiscoveryUrl(i.PublicIPAddress)
if err != nil {
return errgo.Mask(err)
}
machineUrl := discoveryUrl + "/" + etcdMemberName
req, err := http.NewRequest("DELETE", machineUrl, nil)
if err != nil {
return errgo.Mask(err)
}
_, err = http.DefaultClient.Do(req)
if err != nil {
return errgo.Mask(err)
}
return nil
}
func runEtcd(args []string) (exit int) {
if len(args) != 2 {
return exitError("usage: kocho etcd discovery|peers <swarm>")
}
subCommand := args[0]
swarmName := args[1]
s, err := swarmService.Get(swarmName, swarm.AWS)
if err != nil {
return exitError(fmt.Sprintf("couldn't get instances of swarm: %s", swarmName), err)
}
instances, err := s.GetInstances()
if err != nil {
exitError(err)
}
if len(instances) == 0 {
return exitError(errgo.Newf("could not find any running instances in swarm %s", swarmName))
}
switch subCommand {
case "discovery":
url, err := ssh.GetEtcdDiscoveryUrl(instances[0].PublicIPAddress)
if err != nil {
return exitError(err)
}
fmt.Println(url)
case "peers":
etcdPeers := []string{}
for _, instance := range instances {
etcdPeers = append(etcdPeers, fmt.Sprintf("http://%v:2379", instance.PrivateIPAddress))
}
peers := strings.Join(etcdPeers, ",")
fmt.Println(peers)
}
return 0
}