github.com/yahoo/vssh
Package vssh is a Go library to handle tens of thousands SSH connections and execute the command with higher-level API for building network device / server automation. By calling the run method vssh sends the given command to all available clients or based on your query it runs the command on the specific clients and the results of the ran command can be received in two options, streaming or final result.In streaming you can get line by line from command’s stdout / stderr in real time or in case of non-real time you can get the whole of the lines together. This example demonstrates integration vSSH with AWS EC2
Readme
Go library to handle tens of thousands SSH connections and execute the command(s) with higher-level API for building network device / server automation. Documentation and examples are available via godoc.
labels := map[string]string {
"POP" : "LAX",
"OS" : "JUNOS",
}
// sets labels to a client
vs.AddClient(addr, config, vssh.SetLabels(labels))
// query with label
vs.RunWithLabel(ctx, cmd, timeout, "(POP == LAX || POP == DCA) && OS == JUNOS")
vs := vssh.New().Start()
config := vssh.GetConfigUserPass("vssh", "vssh")
for _, addr := range []string{"54.193.17.197:22", "192.168.2.19:22"} {
vs.AddClient(addr, config, vssh.SetMaxSessions(4))
}
vs.Wait()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
cmd:= "ping -c 4 192.168.55.10"
timeout, _ := time.ParseDuration("6s")
respChan := vs.Run(ctx, cmd, timeout)
for resp := range respChan {
if err := resp.Err(); err != nil {
log.Println(err)
continue
}
outTxt, errTxt, _ := resp.GetText(vs)
fmt.Println(outTxt, errTxt, resp.ExitStatus())
}
vs := vssh.New().Start()
config, _ := vssh.GetConfigPEM("vssh", "mypem.pem")
vs.AddClient("54.193.17.197:22", config, vssh.SetMaxSessions(4))
vs.Wait()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
cmd:= "ping -c 4 192.168.55.10"
timeout, _ := time.ParseDuration("6s")
respChan := vs.Run(ctx, cmd, timeout)
resp := <- respChan
if err := resp.Err(); err != nil {
log.Fatal(err)
}
stream := resp.GetStream()
defer stream.Close()
for stream.ScanStdout() {
txt := stream.TextStdout()
fmt.Println(txt)
}
Code is licensed under the Apache License, Version 2.0 (the "License"). Content is licensed under the CC BY 4.0 license. Terms available at https://creativecommons.org/licenses/by/4.0/.
Welcomes any kind of contribution, please follow the next steps:
FAQs
Package vssh is a Go library to handle tens of thousands SSH connections and execute the command with higher-level API for building network device / server automation. By calling the run method vssh sends the given command to all available clients or based on your query it runs the command on the specific clients and the results of the ran command can be received in two options, streaming or final result.In streaming you can get line by line from command’s stdout / stderr in real time or in case of non-real time you can get the whole of the lines together. This example demonstrates integration vSSH with AWS EC2
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