diff --git a/agents/gce/fence_gce.py b/agents/gce/fence_gce.py
index 63c7858f..2bf4da5a 100644
--- a/agents/gce/fence_gce.py
+++ b/agents/gce/fence_gce.py
@@ -1,611 +1,613 @@
 #!@PYTHON@ -tt
 
 #
 # Requires the googleapiclient and oauth2client
 # RHEL 7.x: google-api-python-client==1.6.7 python-gflags==2.0 pyasn1==0.4.8 rsa==3.4.2 pysocks==1.7.1 httplib2==0.19.0
 # RHEL 8.x: pysocks==1.7.1 httplib2==0.19.0
 # SLES 12.x: python-google-api-python-client python-oauth2client python-oauth2client-gce pysocks==1.7.1 httplib2==0.19.0
 # SLES 15.x: python3-google-api-python-client python3-oauth2client pysocks==1.7.1 httplib2==0.19.0
 #
 
 import atexit
 import httplib2
 import logging
 import json
 import re
 import os
 import socket
 import sys
 import time
 
 from ssl import SSLError
 
 if sys.version_info >= (3, 0):
   # Python 3 imports.
   import urllib.parse as urlparse
   import urllib.request as urlrequest
 else:
   # Python 2 imports.
   import urllib as urlparse
   import urllib2 as urlrequest
 sys.path.append("@FENCEAGENTSLIBDIR@")
 
 from fencing import fail_usage, run_delay, all_opt, atexit_handler, check_input, process_input, show_docs, fence_action, run_command
 try:
   import googleapiclient.discovery
   import socks
   try:
     from google.oauth2.credentials import Credentials as GoogleCredentials
   except:
     from oauth2client.client import GoogleCredentials
 except:
   pass
 
 METADATA_SERVER = 'http://metadata.google.internal/computeMetadata/v1/'
 METADATA_HEADERS = {'Metadata-Flavor': 'Google'}
 INSTANCE_LINK = 'https://www.googleapis.com/compute/v1/projects/{}/zones/{}/instances/{}'
 
 def run_on_fail(options):
 	if "--runonfail" in options:
 		run_command(options, options["--runonfail"])
 
 def fail_fence_agent(options, message):
 	run_on_fail(options)
 	fail_usage(message)
 
 def raise_fence_agent(options, message):
 	run_on_fail(options)
 	raise Exception(message)
 
 #
 # Will use baremetalsolution setting or the environment variable
 # FENCE_GCE_URI_REPLACEMENTS to replace the uri for calls to *.googleapis.com.
 #
 def replace_api_uri(options, http_request):
 	uri_replacements = []
 	# put any env var replacements first, then baremetalsolution if in options
 	if "FENCE_GCE_URI_REPLACEMENTS" in os.environ:
 		logging.debug("FENCE_GCE_URI_REPLACEMENTS environment variable exists")
 		env_uri_replacements = os.environ["FENCE_GCE_URI_REPLACEMENTS"]
 		try:
 			uri_replacements_json = json.loads(env_uri_replacements)
 			if isinstance(uri_replacements_json, list):
 				uri_replacements = uri_replacements_json
 			else:
 				logging.warning("FENCE_GCE_URI_REPLACEMENTS exists, but is not a JSON List")
 		except ValueError as e:
 			logging.warning("FENCE_GCE_URI_REPLACEMENTS exists but is not valid JSON")
 	if "--baremetalsolution" in options:
 		uri_replacements.append(
 			{
 				"matchlength": 4,
 				"match": "https://compute.googleapis.com/compute/v1/projects/(.*)/zones/(.*)/instances/(.*)/reset(.*)",
 				"replace": "https://baremetalsolution.googleapis.com/v1/projects/\\1/locations/\\2/instances/\\3:resetInstance\\4"
 			})
 	for uri_replacement in uri_replacements:
 		# each uri_replacement should have matchlength, match, and replace
 		if "matchlength" not in uri_replacement or "match" not in uri_replacement or "replace" not in uri_replacement:
 			logging.warning("FENCE_GCE_URI_REPLACEMENTS missing matchlength, match, or replace in %s" % uri_replacement)
 			continue
 		match = re.match(uri_replacement["match"], http_request.uri)
 		if match is None or len(match.groups()) != uri_replacement["matchlength"]:
 			continue
 		replaced_uri = re.sub(uri_replacement["match"], uri_replacement["replace"], http_request.uri)
 		match = re.match("https:\/\/.*.googleapis.com", replaced_uri)
 		if match is None or match.start() != 0:
 			logging.warning("FENCE_GCE_URI_REPLACEMENTS replace is not "
 				"targeting googleapis.com, ignoring it: %s" % replaced_uri)
 			continue
 		logging.debug("Replacing googleapis uri %s with %s" % (http_request.uri, replaced_uri))
 		http_request.uri = replaced_uri
 		break
 	return http_request
 
 def retry_api_execute(options, http_request):
 	replaced_http_request = replace_api_uri(options, http_request)
 	retries = 3
 	if options.get("--retries"):
 		retries = int(options.get("--retries"))
 	retry_sleep = 5
 	if options.get("--retrysleep"):
 		retry_sleep = int(options.get("--retrysleep"))
 	retry = 0
 	current_err = None
 	while retry <= retries:
 		if retry > 0:
 			time.sleep(retry_sleep)
 		try:
 			return replaced_http_request.execute()
 		except Exception as err:
 			current_err = err
 			logging.warning("Could not execute api call to: %s, retry: %s, "
 				"err: %s" % (replaced_http_request.uri, retry, str(err)))
 		retry += 1
 	raise current_err
 
 
 def translate_status(instance_status):
 	"Returns on | off | unknown."
 	if instance_status == "RUNNING":
 		return "on"
 	elif instance_status == "TERMINATED":
 		return "off"
 	return "unknown"
 
 
 def get_nodes_list(conn, options):
 	result = {}
-	if "--zone" not in options:
-		fail_fence_agent(options, "Failed: get_nodes_list: Please specify the --zone in the command")
+	plug = options["--plug"] if "--plug" in options else ""
+	zones = options["--zone"] if "--zone" in options else ""
+	if not zones:
+		zones = get_zone(conn, options, plug) if "--plugzonemap" not in options else options["--plugzonemap"][plug]
 	try:
-		for zone in options["--zone"].split(","):
+		for zone in zones.split(","):
 			instanceList = retry_api_execute(options, conn.instances().list(
 				project=options["--project"],
 				zone=zone))
 			for instance in instanceList["items"]:
 				result[instance["id"]] = (instance["name"], translate_status(instance["status"]))
 	except Exception as err:
 		fail_fence_agent(options, "Failed: get_nodes_list: {}".format(str(err)))
 
 	return result
 
 
 def get_power_status(conn, options):
 	logging.debug("get_power_status")
 	# if this is bare metal we need to just send back the opposite of the
 	# requested action: if on send off, if off send on
 	if "--baremetalsolution" in options:
 		if options.get("--action") == "on":
 			return "off"
 		else:
 			return "on"
 	# If zone is not listed for an entry we attempt to get it automatically
 	instance = options["--plug"]
 	zone = get_zone(conn, options, instance) if "--plugzonemap" not in options else options["--plugzonemap"][instance]
 	instance_status = get_instance_power_status(conn, options, instance, zone)
 	# If any of the instances do not match the intended status we return the
 	# the opposite status so that the fence agent can change it.
 	if instance_status != options.get("--action"):
 		return instance_status
 
 	return options.get("--action")
 
 
 def get_instance_power_status(conn, options, instance, zone):
 	try:
 		instance = retry_api_execute(
 				options,
 				conn.instances().get(project=options["--project"], zone=zone, instance=instance))
 		return translate_status(instance["status"])
 	except Exception as err:
 		fail_fence_agent(options, "Failed: get_instance_power_status: {}".format(str(err)))
 
 
 def check_for_existing_operation(conn, options, instance, zone, operation_type):
 	logging.debug("check_for_existing_operation")
 	if "--baremetalsolution" in options:
 		# There is no API for checking in progress operations
 		return False
 
 	project = options["--project"]
 	target_link = INSTANCE_LINK.format(project, zone, instance)
 	query_filter = '(targetLink = "{}") AND (operationType = "{}") AND (status = "RUNNING")'.format(target_link, operation_type)
 	result = retry_api_execute(
 			options,
 			conn.zoneOperations().list(project=project, zone=zone, filter=query_filter, maxResults=1))
 
 	if "items" in result and result["items"]:
 		logging.info("Existing %s operation found", operation_type)
 		return result["items"][0]
 
 
 def wait_for_operation(conn, options, zone, operation):
 	if 'name' not in operation:
 		logging.warning('Cannot wait for operation to complete, the'
 		' requested operation will continue asynchronously')
 		return False
 
 	wait_time = 0
 	project = options["--project"]
 	while True:
 		result = retry_api_execute(options, conn.zoneOperations().get(
 			project=project,
 			zone=zone,
 			operation=operation['name']))
 		if result['status'] == 'DONE':
 			if 'error' in result:
 				raise_fence_agent(options, result['error'])
 			return True
 
 		if "--errortimeout" in options and wait_time > int(options["--errortimeout"]):
 			raise_fence_agent(options, "Operation did not complete before the timeout.")
 
 		if "--warntimeout" in options and wait_time > int(options["--warntimeout"]):
 			logging.warning("Operation did not complete before the timeout.")
 			if "--runonwarn" in options:
 				run_command(options, options["--runonwarn"])
 			return False
 
 		wait_time = wait_time + 1
 		time.sleep(1)
 
 
 def set_power_status(conn, options):
 	logging.debug("set_power_status")
 	instance = options["--plug"]
 	# If zone is not listed for an entry we attempt to get it automatically
 	zone = get_zone(conn, options, instance) if "--plugzonemap" not in options else options["--plugzonemap"][instance]
 	set_instance_power_status(conn, options, instance, zone, options["--action"])
 
 
 def set_instance_power_status(conn, options, instance, zone, action):
 	logging.info("Setting power status of %s in zone %s", instance, zone)
 	project = options["--project"]
 
 	try:
 		if action == "off":
 			logging.info("Issuing poweroff of %s in zone %s", instance, zone)
 			operation = check_for_existing_operation(conn, options, instance, zone, "stop")
 			if operation and "--earlyexit" in options:
 				return
 			if not operation:
 				operation = retry_api_execute(
 						options,
 						conn.instances().stop(project=project, zone=zone, instance=instance))
 			logging.info("Poweroff command completed, waiting for the operation to complete")
 			if wait_for_operation(conn, options, zone, operation):
 				logging.info("Poweroff of %s in zone %s complete", instance, zone)
 		elif action == "on":
 			logging.info("Issuing poweron of %s in zone %s", instance, zone)
 			operation = check_for_existing_operation(conn, options, instance, zone, "start")
 			if operation and "--earlyexit" in options:
 				return
 			if not operation:
 				operation = retry_api_execute(
 						options,
 						conn.instances().start(project=project, zone=zone, instance=instance))
 			if wait_for_operation(conn, options, zone, operation):
 				logging.info("Poweron of %s in zone %s complete", instance, zone)
 	except Exception as err:
 		fail_fence_agent(options, "Failed: set_instance_power_status: {}".format(str(err)))
 
 def power_cycle(conn, options):
 	logging.debug("power_cycle")
 	instance = options["--plug"]
 	# If zone is not listed for an entry we attempt to get it automatically
 	zone = get_zone(conn, options, instance) if "--plugzonemap" not in options else options["--plugzonemap"][instance]
 	return power_cycle_instance(conn, options, instance, zone)
 
 
 def power_cycle_instance(conn, options, instance, zone):
 	logging.info("Issuing reset of %s in zone %s", instance, zone)
 	project = options["--project"]
 
 	try:
 		operation = check_for_existing_operation(conn, options, instance, zone, "reset")
 		if operation and "--earlyexit" in options:
 			return True
 		if not operation:
 			operation = retry_api_execute(
 					options,
 					conn.instances().reset(project=project, zone=zone, instance=instance))
 		logging.info("Reset command sent, waiting for the operation to complete")
 		if wait_for_operation(conn, options, zone, operation):
 			logging.info("Reset of %s in zone %s complete", instance, zone)
 		return True
 	except Exception as err:
 		logging.exception("Failed: power_cycle")
 		raise err
 
 
 def get_zone(conn, options, instance):
 	logging.debug("get_zone");
 	project = options['--project']
 	fl = 'name="%s"' % instance
 	request = replace_api_uri(options, conn.instances().aggregatedList(project=project, filter=fl))
 	while request is not None:
 		response = request.execute()
 		zones = response.get('items', {})
 		for zone in zones.values():
 			for inst in zone.get('instances', []):
 				if inst['name'] == instance:
 					return inst['zone'].split("/")[-1]
 		request = replace_api_uri(options, conn.instances().aggregatedList_next(
 				previous_request=request, previous_response=response))
 	raise_fence_agent(options, "Unable to find instance %s" % (instance))
 
 
 def get_metadata(metadata_key, params=None, timeout=None):
 	"""Performs a GET request with the metadata headers.
 
 	Args:
 		metadata_key: string, the metadata to perform a GET request on.
 		params: dictionary, the query parameters in the GET request.
 		timeout: int, timeout in seconds for metadata requests.
 
 	Returns:
 		HTTP response from the GET request.
 
 	Raises:
 		urlerror.HTTPError: raises when the GET request fails.
 	"""
 	logging.debug("get_metadata");
 	timeout = timeout or 60
 	metadata_url = os.path.join(METADATA_SERVER, metadata_key)
 	params = urlparse.urlencode(params or {})
 	url = '%s?%s' % (metadata_url, params)
 	request = urlrequest.Request(url, headers=METADATA_HEADERS)
 	request_opener = urlrequest.build_opener(urlrequest.ProxyHandler({}))
 	return request_opener.open(request, timeout=timeout * 1.1).read().decode("utf-8")
 
 
 def define_new_opts():
 	all_opt["zone"] = {
 		"getopt" : ":",
 		"longopt" : "zone",
 		"help" : "--zone=[name]                  Zone, e.g. us-central1-b",
 		"shortdesc" : "Zone.",
 		"required" : "0",
 		"order" : 2
 	}
 	all_opt["project"] = {
 		"getopt" : ":",
 		"longopt" : "project",
 		"help" : "--project=[name]               Project ID",
 		"shortdesc" : "Project ID.",
 		"required" : "0",
 		"order" : 3
 	}
 	all_opt["stackdriver-logging"] = {
 		"getopt" : "",
 		"longopt" : "stackdriver-logging",
 		"help" : "--stackdriver-logging          Enable Logging to Stackdriver",
 		"shortdesc" : "Stackdriver-logging support.",
 		"longdesc" : "If enabled IP failover logs will be posted to stackdriver logging.",
 		"required" : "0",
 		"order" : 4
 	}
 	all_opt["baremetalsolution"] = {
 		"getopt" : "",
 		"longopt" : "baremetalsolution",
 		"help" : "--baremetalsolution            Enable on bare metal",
 		"shortdesc" : "If enabled this is a bare metal offering from google.",
 		"required" : "0",
 		"order" : 5
 	}
 	all_opt["apitimeout"] = {
 		"getopt" : ":",
 		"type" : "second",
 		"longopt" : "apitimeout",
 		"help" : "--apitimeout=[seconds]         Timeout to use for API calls",
 		"shortdesc" : "Timeout in seconds to use for API calls, default is 60.",
 		"required" : "0",
 		"default" : 60,
 		"order" : 6
 	}
 	all_opt["retries"] = {
 		"getopt" : ":",
 		"type" : "integer",
 		"longopt" : "retries",
 		"help" : "--retries=[retries]            Number of retries on failure for API calls",
 		"shortdesc" : "Number of retries on failure for API calls, default is 3.",
 		"required" : "0",
 		"default" : 3,
 		"order" : 7
 	}
 	all_opt["retrysleep"] = {
 		"getopt" : ":",
 		"type" : "second",
 		"longopt" : "retrysleep",
 		"help" : "--retrysleep=[seconds]         Time to sleep between API retries",
 		"shortdesc" : "Time to sleep in seconds between API retries, default is 5.",
 		"required" : "0",
 		"default" : 5,
 		"order" : 8
 	}
 	all_opt["serviceaccount"] = {
 		"getopt" : ":",
 		"longopt" : "serviceaccount",
 		"help" : "--serviceaccount=[filename]    Service account json file location e.g. serviceaccount=/somedir/service_account.json",
 		"shortdesc" : "Service Account to use for authentication to the google cloud APIs.",
 		"required" : "0",
 		"order" : 9
 	}
 	all_opt["plugzonemap"] = {
 		"getopt" : ":",
 		"longopt" : "plugzonemap",
 		"help" : "--plugzonemap=[plugzonemap]    Comma separated zone map when fencing multiple plugs",
 		"shortdesc" : "Comma separated zone map when fencing multiple plugs.",
 		"required" : "0",
 		"order" : 10
 	}
 	all_opt["proxyhost"] = {
 		"getopt" : ":",
 		"longopt" : "proxyhost",
 		"help" : "--proxyhost=[proxy_host]       The proxy host to use, if one is needed to access the internet (Example: 10.122.0.33)",
 		"shortdesc" : "If a proxy is used for internet access, the proxy host should be specified.",
 		"required" : "0",
 		"order" : 11
 	}
 	all_opt["proxyport"] = {
 		"getopt" : ":",
 		"type" : "integer",
 		"longopt" : "proxyport",
 		"help" : "--proxyport=[proxy_port]       The proxy port to use, if one is needed to access the internet (Example: 3127)",
 		"shortdesc" : "If a proxy is used for internet access, the proxy port should be specified.",
 		"required" : "0",
 		"order" : 12
 	}
 	all_opt["earlyexit"] = {
 		"getopt" : "",
 		"longopt" : "earlyexit",
 		"help" : "--earlyexit                    Return early if reset is already in progress",
 		"shortdesc" : "If an existing reset operation is detected, the fence agent will return before the operation completes with a 0 return code.",
 		"required" : "0",
 		"order" : 13
 	}
 	all_opt["warntimeout"] = {
 		"getopt" : ":",
 		"type" : "second",
 		"longopt" : "warntimeout",
 		"help" : "--warntimeout=[warn_timeout]   Timeout seconds before logging a warning and returning a 0 status code",
 		"shortdesc" : "If the operation is not completed within the timeout, the cluster operations are allowed to continue.",
 		"required" : "0",
 		"order" : 14
 	}
 	all_opt["errortimeout"] = {
 		"getopt" : ":",
 		"type" : "second",
 		"longopt" : "errortimeout",
 		"help" : "--errortimeout=[error_timeout] Timeout seconds before failing and returning a non-zero status code",
 		"shortdesc" : "If the operation is not completed within the timeout, cluster is notified of the operation failure.",
 		"required" : "0",
 		"order" : 15
 	}
 	all_opt["runonwarn"] = {
 		"getopt" : ":",
 		"longopt" : "runonwarn",
 		"help" : "--runonwarn=[run_on_warn]      If a timeout occurs and warning is generated, run the supplied command",
 		"shortdesc" : "If a timeout would occur while running the agent, then the supplied command is run.",
 		"required" : "0",
 		"order" : 16
 	}
 	all_opt["runonfail"] = {
 		"getopt" : ":",
 		"longopt" : "runonfail",
 		"help" : "--runonfail=[run_on_fail]      If a failure occurs, run the supplied command",
 		"shortdesc" : "If a failure would occur while running the agent, then the supplied command is run.",
 		"required" : "0",
 		"order" : 17
 	}
 
 
 def main():
 	conn = None
 
 	device_opt = ["port", "no_password", "zone", "project", "stackdriver-logging",
 		"method", "baremetalsolution", "apitimeout", "retries", "retrysleep",
 		"serviceaccount", "plugzonemap", "proxyhost", "proxyport", "earlyexit",
 		"warntimeout", "errortimeout", "runonwarn", "runonfail"]
 
 	atexit.register(atexit_handler)
 
 	define_new_opts()
 
 	all_opt["power_timeout"]["default"] = "60"
 	all_opt["method"]["default"] = "cycle"
 	all_opt["method"]["help"] = "-m, --method=[method]          Method to fence (onoff|cycle) (Default: cycle)"
 
 	options = check_input(device_opt, process_input(device_opt))
 
 	docs = {}
 	docs["shortdesc"] = "Fence agent for GCE (Google Cloud Engine)"
 	docs["longdesc"] = "fence_gce is an I/O Fencing agent for GCE (Google Cloud " \
 			   "Engine). It uses the googleapiclient library to connect to GCE.\n" \
 			   "googleapiclient can be configured with Google SDK CLI or by " \
 			   "executing 'gcloud auth application-default login'.\n" \
 			   "For instructions see: https://cloud.google.com/compute/docs/tutorials/python-guide"
 	docs["vendorurl"] = "http://cloud.google.com"
 	show_docs(options, docs)
 
 	run_delay(options)
 
 	# Prepare logging
 	if options.get('--verbose') is None:
 		logging.getLogger('googleapiclient').setLevel(logging.ERROR)
 		logging.getLogger('oauth2client').setLevel(logging.ERROR)
 	if options.get('--stackdriver-logging') is not None and options.get('--plug'):
 		try:
 			import google.cloud.logging.handlers
 			client = google.cloud.logging.Client()
 			handler = google.cloud.logging.handlers.CloudLoggingHandler(client, name=options['--plug'])
 			handler.setLevel(logging.INFO)
 			formatter = logging.Formatter('gcp:stonith "%(message)s"')
 			handler.setFormatter(formatter)
 			root_logger = logging.getLogger()
 			if options.get('--verbose') is None:
 				root_logger.setLevel(logging.INFO)
 			root_logger.addHandler(handler)
 		except ImportError:
 			logging.error('Couldn\'t import google.cloud.logging, '
 				'disabling Stackdriver-logging support')
 
   # if apitimeout is defined we set the socket timeout, if not we keep the
   # socket default which is 60s
 	if options.get("--apitimeout"):
 		socket.setdefaulttimeout(options["--apitimeout"])
 
 	# Prepare cli
 	try:
 		serviceaccount = options.get("--serviceaccount")
 		if serviceaccount:
 			scope = ['https://www.googleapis.com/auth/cloud-platform']
 			logging.debug("using credentials from service account")
 			try:
 				from google.oauth2.service_account import Credentials as ServiceAccountCredentials
 				credentials = ServiceAccountCredentials.from_service_account_file(filename=serviceaccount, scopes=scope)
 			except ImportError:
 				from oauth2client.service_account import ServiceAccountCredentials
 				credentials = ServiceAccountCredentials.from_json_keyfile_name(serviceaccount, scope)
 		else:
 			try:
 				from googleapiclient import _auth
 				credentials = _auth.default_credentials();
 			except:
 				credentials = GoogleCredentials.get_application_default()
 			logging.debug("using application default credentials")
 
 		if options.get("--proxyhost") and options.get("--proxyport"):
 			proxy_info = httplib2.ProxyInfo(
 				proxy_type=socks.PROXY_TYPE_HTTP,
 				proxy_host=options.get("--proxyhost"),
 				proxy_port=int(options.get("--proxyport")))
 			http = credentials.authorize(httplib2.Http(proxy_info=proxy_info))
 			conn = googleapiclient.discovery.build(
 				'compute', 'v1', http=http, cache_discovery=False)
 		else:
 			conn = googleapiclient.discovery.build(
 				'compute', 'v1', credentials=credentials, cache_discovery=False)
 	except SSLError as err:
 		fail_fence_agent(options, "Failed: Create GCE compute v1 connection: {}\n\nThis might be caused by old versions of httplib2.".format(str(err)))
 	except Exception as err:
 		fail_fence_agent(options, "Failed: Create GCE compute v1 connection: {}".format(str(err)))
 
 	# Get project and zone
 	if not options.get("--project"):
 		try:
 			options["--project"] = get_metadata('project/project-id')
 		except Exception as err:
 			fail_fence_agent(options, "Failed retrieving GCE project. Please provide --project option: {}".format(str(err)))
 
 	if "--baremetalsolution" in options:
 		options["--zone"] = "none"
 
 	# Populates zone automatically if missing from the command
 	zones = [] if not "--zone" in options else options["--zone"].split(",")
 	options["--plugzonemap"] = {}
 	if "--plug" in options:
 		for i, instance in enumerate(options["--plug"].split(",")):
 			if len(zones) == 1:
 				# If only one zone is specified, use it across all plugs
 				options["--plugzonemap"][instance] = zones[0]
 				continue
 
 			if len(zones) - 1 >= i:
 				# If we have enough zones specified with the --zone flag use the zone at
 				# the same index as the plug
 				options["--plugzonemap"][instance] = zones[i]
 				continue
 
 			try:
 				# In this case we do not have a zone specified so we attempt to detect it
 				options["--plugzonemap"][instance] = get_zone(conn, options, instance)
 			except Exception as err:
 				fail_fence_agent(options, "Failed retrieving GCE zone. Please provide --zone option: {}".format(str(err)))
 
 	# Operate the fencing device
 	result = fence_action(conn, options, set_power_status, get_power_status, get_nodes_list, power_cycle)
 	sys.exit(result)
 
 if __name__ == "__main__":
 	main()