poll for aws vault process

gistfile1.txt

func isProcessUp(pid int) bool {
	process, err := os.FindProcess(pid)
	if err != nil {
		return false
	} else {
		return process.Signal(syscall.Signal(0)) == nil
	}
}

func pollAwsVaultProcessAndExitWhenGone() {
	pid, _ := strconv.Atoi(os.Getenv("AWS_VAULT_PID"))
	if pid != 0 {
		go func() {
			for {
				if !isProcessUp(pid) {
					log.Println("PID %d gone, exiting", pid)
					os.Exit(0)
				}
				time.Sleep(2 * time.Second)
			}
		}()
	}
}