Batch start vm by virsh

virsh-batch-start-vm.py

#!/usr/bin/env python
#
# Batch start vm by virsh
#
# usage:
#   ./virsh-batch-start-vm.py <domain1> [<domain2> ... <domainN>]
#
#

import sys
import threading
import Queue
import commands
import time


# thread class to run a command
class ExampleThread(threading.Thread):
    def __init__(self, cmd, queue):
        threading.Thread.__init__(self)
        self.cmd = cmd
        self.queue = queue

    def run(self):
        # execute the command, queue the result
        (status, output) = commands.getstatusoutput(self.cmd)
        self.queue.put((self.cmd, output, status))


# queue where results are placed
result_queue = Queue.Queue()

cmds = []

for domain in sys.argv[1:]:
    cmd = "virsh start %s" % (str(domain))
    cmds.append(cmd)

for cmd in cmds:
    thread = ExampleThread(cmd, result_queue)
    thread.start()

# print results as we get them
while threading.active_count() > 1 or not result_queue.empty():
    while not result_queue.empty():
        (cmd, output, status) = result_queue.get()
        print('%s:' % cmd)
        print(output)
        print('='*60)
    time.sleep(1)