files/usr/sbin/sipb-xen-listvms

   1 #!/usr/bin/python
   2
   3 import sys
   4 import time
   5 sys.path.insert(0, '/usr/lib/xen-3.1-1/lib/python')
   6 from xen.xend.xenstore import xstransact
   7
   8 xst = xstransact.xstransact()
   9
  10 def live_vms():
  11     domids = set(xst.List('/local/domain'))
  12     domids.discard('0')
  13
  14     vms = dict()
  15
  16     for domid in domids:
  17         try:
  18             name, data = get_dom(int(domid))
  19         except TypeError:
  20             continue # went down since we started
  21         if name.startswith('d_'):
  22             name = name[2:]
  23             vms[name] = data
  24     return vms
  25
  26 def get_dom(domid):
  27     name = xst.Read('/local/domain/%d/name' % domid)
  28     data = dict()
  29     data['domid'] = domid
  30     # presence of a graphical console
  31     data['console'] = xst.Read('/local/domain/%d/device/vfb/0/state' % domid)
  32     # uptime
  33     data['vm'] = xst.Read('/local/domain/%d/vm' % domid)
  34     data['start_time'] = float(xst.Read('%s/start_time' % data['vm']))
  35     data['uptime'] = time.time()-data['start_time']
  36
  37     return name, data
  38
  39 if __name__ == '__main__':
  40     vms = live_vms()
  41     if '--json' in sys.argv[1:]:
  42         import cjson
  43         print cjson.encode(vms)
  44     elif '--pickle' in sys.argv[1:]:
  45         import cPickle
  46         cPickle.dump(vms, sys.stdout, cPickle.HIGHEST_PROTOCOL)
  47     else:
  48         import yaml
  49         print yaml.dump(vms, Dumper=yaml.CSafeDumper, default_flow_style=False)