powercycle.py
#!/usr/bin/env python
# Copyright (c) 2006-2007 XenSource, Inc.
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# Enumerate all existing VMs, shut them down and do some aggressive power-cycling
import sys, time
import XenAPI
def main(session):
# Find a non-template VM object
vms = session.xenapi.VM.get_all()
print "Server has %d VM objects (this includes templates):" % (len(vms))
for vm in vms:
record = session.xenapi.VM.get_record(vm)
# We cannot power-cycle templates and we should avoid touching control domains
# unless we are really sure of what we are doing...
if not(record["is_a_template"]) and not(record["is_control_domain"]):
name = record["name_label"]
print "Found VM uuid", record["uuid"], "called: ", name
record = session.xenapi.VM.get_record(vm)
# Make sure the VM has powered down
print " VM '%s' is in power state '%s'" % (name, record["power_state"])
if record["power_state"] == "Suspended":
session.xenapi.VM.resume(vm, False, True) # start_paused = False; force = True
session.xenapi.VM.clean_shutdown(vm)
elif record["power_state"] == "Paused":
session.xenapi.VM.unpause(vm)
session.xenapi.VM.clean_shutdown(vm)
elif record["power_state"] == "Running":
session.xenapi.VM.clean_shutdown(vm)
# Power-cycle the VM a few times
for i in range(1, 10):
print " beginning iteration %d" % (i)
print " ... restarting"
session.xenapi.VM.start(vm, False, True) # start_paused = False; force = True
print " ... waiting 20s for the VM to boot"
time.sleep(20)
print " ... suspending"
session.xenapi.VM.suspend(vm)
print " ... resuming"
session.xenapi.VM.resume(vm, False, True) # start_paused = False; force = True
print " ... shutting down"
session.xenapi.VM.clean_shutdown(vm)
if __name__ == "__main__":
if len(sys.argv) <> 4:
print "Usage:"
print sys.argv[0], " <url> <username> <password>"
sys.exit(1)
url = sys.argv[1]
username = sys.argv[2]
password = sys.argv[3]
# First acquire a valid session by logging in:
session = XenAPI.Session(url)
session.xenapi.login_with_password(username, password)
main(session)
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