def _get_netscaler_monitorbinding_from_healthmonitor(
self, loadBalancerId, node, healthMonitor):
monitor_name = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
service_name = NitroUtils.get_servicename_from_nodeid(
loadBalancerId, node.id)
monitor_binding = {}
monitor_binding["monitorname"] = monitor_name
monitor_binding["servicename"] = service_name
return monitor_binding
def _extract_healthmonitor(self, results, loadBalancerId, loadBalancer):
monitor_name = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
monitor = NitroTasks.extract_monitor_from_task_list(
results, monitor_name)
if monitor:
healthMonitor = self.monitoradapter.get_netscaler_healthmonitor_from_monitor(
loadBalancerId, loadBalancer, monitor)
return healthMonitor
else:
return None
def _get_netscaler_addmonitor_task(self, loadBalancerId, loadBalancer,
healthMonitor):
monitor_name = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
state = self._get_netscaler_monitor_from_healthmonitor(
loadBalancerId, loadBalancer, healthMonitor)
task = {}
task["type"] = "lbmonitor"
task["name"] = monitor_name
task["operation"] = "ADD"
task["state"] = state
return task
def _get_netscaler_loadBalancer_monitor(self, loadBalancerId,
loadBalancer):
resource_type = "lbmonitor"
monitor = None
monitor_name = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
try:
monitor = self.nitrowrapper.get_netscaler_entity(
resource_type, monitor_name)
except ItemNotFoundException:
return None
return monitor
def get_netscaler_removemonitorbinding_task(self, loadBalancerId,
loadBalancer, nodeId):
monitor_name = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
servicename = NitroUtils.get_servicename_from_nodeid(
loadBalancerId, nodeId)
args = "servicename:" + servicename
task = {}
task["type"] = "lbmonitor_service_binding"
task["name"] = monitor_name + "?args=" + args
task["operation"] = "REMOVE"
task["state"] = None
return task
def get_netscaler_gethealthmonitor_tasks(self, loadBalancerId,
loadBalancer):
task_list = []
monitor_name = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
task = {}
task["type"] = "lbmonitor"
task["name"] = monitor_name
task["operation"] = "GET"
task["state"] = None
task_list.append(task)
return task_list
def _get_LBHealthMonitorInternal(self, loadBalancerId, loadBalancer):
task_list = self._get_netscaler_tasks("GET", loadBalancerId,
loadBalancer)
self.logger.debug("GET nodes tasklist: " + str(task_list))
results = self.nitrowrapper.process_netscaler_task_list(task_list)
monitor_name = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
monitor = NitroTasks.extract_monitor_from_task_list(
results, monitor_name)
healthMonitor = self.get_netscaler_healthmonitor_from_monitor(
loadBalancerId, loadBalancer, monitor)
return healthMonitor
def _get_netscaler_updatemonitor_tasks(self, loadBalancerId, loadBalancer,
healthMonitor):
task_list = []
monitor_name = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
if "healthMonitor" in loadBalancer and loadBalancer.healthMonitor:
existingType = loadBalancer.healthMonitor.type.upper()
if "type" in healthMonitor:
newType = healthMonitor.type.upper()
else:
healthMonitor.type = loadBalancer.healthMonitor.type
newType = existingType
if newType != existingType:
""" The monitor type is different, we need to remove the existing health monitor
and add a new one """
tasks = self.get_netscaler_removehealthmonitor_tasks(
loadBalancerId, loadBalancer)
if tasks:
task_list.extend(tasks)
self._adjust_healthmonitor_state(
healthMonitor, loadBalancer.healthMonitor)
tasks = self.get_netscaler_addhealthmonitor_tasks(
loadBalancerId, loadBalancer, healthMonitor)
if tasks:
task_list.extend(tasks)
else:
self._adjust_healthmonitor_state(healthMonitor,
loadBalancer.healthMonitor)
task = self._get_netscaler_updatemonitor_task(
loadBalancerId, loadBalancer, healthMonitor)
if task:
task_list.append(task)
return task_list
def _get_netscaler_updatemonitor_task(self, loadBalancerId, loadBalancer,
healthMonitor):
monitor_name = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
state = self._get_netscaler_monitor_from_healthmonitor(
loadBalancerId, loadBalancer, healthMonitor)
if len(state.keys()) < 3:
return None
task = {}
task["type"] = "lbmonitor"
task["name"] = monitor_name
task["operation"] = "UPDATE"
task["state"] = state
return task
def _get_netscaler_monitor_from_healthmonitor(self, loadBalancerId,
loadBalancer, healthMonitor):
self.logger.debug(
"obtaining a netscaler monitor from an OpenStack healthmonitor: %s"
% str(healthMonitor))
if not "type" in healthMonitor or not healthMonitor.type:
self.logger.debug("healthMonitor type attribute missing")
raise BadRequestException("validation fault", "invalid object",
"healthMonitor type attribute missing")
if not healthMonitor.type.upper() in ["CONNECT", "HTTP", "HTTPS"]:
self.logger.debug(
"healthMonitor type attribute has an invalid value")
raise BadRequestException(
"validation fault", "invalid object",
"healthMonitor type attribute has an invalid value")
monitor = {}
monitor[
"monitorname"] = NitroUtils.get_monitorname_from_loadBalancerId(
loadBalancerId)
if healthMonitor.type.upper() in ["HTTP", "HTTPS"]:
monitor["type"] = "USER"
monitor["scriptname"] = self.usermonitor
else:
monitor["type"] = "TCP"
if "delay" in healthMonitor:
monitor["interval"] = int(healthMonitor.delay)
if "timeout" in healthMonitor:
monitor["resptimeout"] = int(healthMonitor.timeout)
if "attemptsBeforeDeactivation" in healthMonitor:
monitor["retries"] = int(healthMonitor.attemptsBeforeDeactivation)
if monitor["type"] == "TCP":
return monitor
if not "path" in healthMonitor or not healthMonitor.path:
self.logger.debug(
"healthMonitor of type HTTP or HTTPS has the path attribute missing"
)
raise BadRequestException(
"validation fault", "invalid object",
"healthMonitor of type HTTP or HTTPS has the path attribute missing"
)
type_expr = '='.join(["type", healthMonitor.type])
scriptargs = type_expr
path = '\'' + healthMonitor.path + '\''
path_expr = '='.join(["path", path])
scriptargs = ';'.join([scriptargs, path_expr])
if not "statusRegex" in healthMonitor or not healthMonitor.statusRegex:
healthMonitor.statusRegex = "[1-5]{3}"
statusRegex = '\'' + healthMonitor.statusRegex + "\'"
status_expr = '='.join(["statusRegex", statusRegex])
scriptargs = ';'.join([scriptargs, status_expr])
if not "bodyRegex" in healthMonitor or not healthMonitor.bodyRegex:
healthMonitor.bodyRegex = ".*"
bodyRegex = '\'' + healthMonitor.bodyRegex + "\'"
body_expr = '='.join(["bodyRegex", bodyRegex])
scriptargs = ';'.join([scriptargs, body_expr])
monitor["scriptargs"] = scriptargs
self.logger.debug("Netscaler monitor built from healthmonitor: %s" %
str(monitor))
return monitor
