This is useful if you work on bunch of server ( in my case like 200 ) and not able to install some manager system like ansiable. ( I have puppet, but puppet is so slow )
Usually if we need quick run command in multiable server, we might do this:
for host in `cat hostsfile`; do
echo $host
ssh $host "/usr/bin/sudo ifconfig|grep inet"
doneIf you have less then 10 servers, it's fine, but if you have more, more and more in the future...
This is very light and make it super fast.
The only thing you need to do is like that:
in your hosts file
hostname1.com
hostname2.net:20
It's able to detect if you have different port running sshd, default is 22 if you don't add :port
package main
import (
"flag"
"github.com/kiyor/mssh"
)
var (
file *string = flag.String("hostsfile", "", "use hostsfile")
cmd *string = flag.String("cmd", "hostname", "execute command")
)
func main() {
flag.Parse()
var hosts []string
hosts = mssh.GetHostsByFile(*file)
var conf mssh.Conf
conf.User = "kiyor"
conf.Key = "/home/kiyor/.ssh/id_rsa"
conf.Command = *cmd
mssh.Ssh(hosts, conf)
}./yourbinary -hostsfile host -cmd "ifconfig|grep inet"That's all, it will send 24 request at same time. It's lite, it's quick, you don't need full path, and support nohup.out
some option
conf.Sudo = false //option default=false
conf.Debug = false //option default=false
conf.Workers = 24 //option default=24
conf.Background = false //option default=false