def _get_netscaler_service_from_node(self, loadBalancerId, loadBalancer, nodeId, node):
service_obj = {}
for key in node:
self.logger.debug("Examining key \"%s\" of node object" % key)
if key == "_properties":
continue
if key == "id":
service_obj["name"] = NitroUtils.get_servicename_from_nodeid(loadBalancerId, nodeId)
continue
if key == "address":
service_obj["ip"] = node.address
continue
if key == "port":
service_obj["port"] = node.port
continue
if loadBalancer:
servicetype = NitroUtils.get_servicetype_from_protocol(loadBalancer.protocol)
servicetype = NitroUtils.get_decrypted_version_of_servicetype(servicetype)
service_obj["servicetype"] = servicetype
return service_obj
def _get_netscaler_updatenode_protocol_task(self, loadBalancerId,
loadBalancer, node,
newLoadBalancerId):
servicename = NitroUtils.get_servicename_from_nodeid(
loadBalancerId, node.id)
if not "protocol" in loadBalancer:
return None
lbprotocol = loadBalancer.protocol
servicetype = NitroUtils.get_servicetype_from_protocol(lbprotocol)
servicetype = NitroUtils.get_decrypted_version_of_servicetype(
servicetype)
service = {}
service["name"] = servicename
service["protocol"] = servicetype
task = {}
task["name"] = servicename
task["type"] = "service"
task["operation"] = "UPDATE"
task["state"] = service
return task
def get_netscaler_addnodes_tasks(self, loadBalancerId, loadBalancer, nodes, existing_ids=[]):
"""
Preconditions:
A. The lbvserver object must have the following attributes
for this method to work:
1. name
2. service_type
B. The lb_algorithm must contain a non empty value
"""
total_nodes = len(existing_ids) + len(nodes)
self.logger.debug("existing node ids are: %s" % str(existing_ids))
if total_nodes > MAX_NODES_PER_LOADBALANCER:
raise OverLimitException("Number of nodes exceeds maximum of %s allowed per load balancer" % MAX_NODES_PER_LOADBALANCER)
task_list = []
for node in nodes:
if not "id" in node:
operation = "ADD"
nodeid = NitroUtils.generate_nodeid(existing_ids)
existing_ids.append(nodeid)
node.id = str(nodeid)
else:
operation = "UPDATE"
task = self._get_netscaler_addservice_task(loadBalancerId, loadBalancer, node.id, node)
task["operation"] = operation
task_list.append(task)
task = self.get_netscaler_addservicebinding_task(loadBalancerId, loadBalancer, node.id, node)
task_list.append(task)
service_name = NitroUtils.get_servicename_from_nodeid(loadBalancerId, node.id)
if operation == "ADD":
task = self._get_netscaler_addservicestatus_task(loadBalancerId, loadBalancer, node.id, node)
task = self._get_netscaler_addmonitorbinding_task(loadBalancerId, loadBalancer, node)
if operation == "UPDATE":
task = self._get_netscaler_updateservicestatus_task(loadBalancerId, loadBalancer, node.id, node)
if task:
task_list.append(task)
return task_list
def _get_netscaler_removeservice_task(self, loadBalancerId, loadBalancer, nodeId):
servicename = NitroUtils.get_servicename_from_nodeid(loadBalancerId, nodeId)
task = {}
task["type"] = "service"
task["name"] = servicename
task["operation"] = "REMOVE"
task["state"] = None
return task
def _get_netscaler_node_currentcondition(self, loadBalancerId, loadBalancer, nodeId):
service_name = NitroUtils.get_servicename_from_nodeid(loadBalancerId, nodeId)
service = self.nitrowrapper.get_netscaler_entity("service", service_name)
svrstate = service["svrstate"]
current_condition = NitroUtils.get_condition_from_svrstate(svrstate)
return current_condition
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 get_netscaler_removeservicebinding_task(self, loadBalancerId, loadBalancer, nodeId):
lbvserver_name = NitroUtils.get_lbvservername_from_loadbalancerid(loadBalancerId)
servicename = NitroUtils.get_servicename_from_nodeid(loadBalancerId, nodeId)
args = "servicename:" + servicename
args += ","
args += "name:" + lbvserver_name
task = {}
task["type"] = "lbvserver_service_binding"
task["name"] = lbvserver_name + "?args=" + args
task["operation"] = "REMOVE"
task["state"] = None
return task
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_getservicebinding_task(self, loadBalancerId, loadBalancer, nodeId):
self.logger.debug("loadBalancer Id is: %s" % loadBalancerId)
self.logger.debug("node Id is: %s" % nodeId)
lbvserver_name = NitroUtils.get_lbvservername_from_loadbalancerid(loadBalancerId)
service_name = NitroUtils.get_servicename_from_nodeid(loadBalancerId, nodeId)
args = "servicename:" + service_name
task = {}
task["type"] = "lbvserver_service_binding"
task["name"] = lbvserver_name + "?filter=" + args
task["operation"] = "GET"
task["state"] = None
return task
def _get_netscaler_servicebinding_from_node(self, loadBalancerId, loadBalancer, nodeId, node):
service_binding_obj = {}
lbvserver_name = NitroUtils.get_lbvservername_from_loadbalancerid(loadBalancerId)
service_name = NitroUtils.get_servicename_from_nodeid(loadBalancerId, nodeId)
service_binding_obj["name"] = lbvserver_name
service_binding_obj["servicename"] = service_name
if "weight" in node and node.weight != 1 :
if not loadBalancer.algorithm.startswith("WEIGHTED_"):
raise BadRequestException("validation fault", "invalid object",
"LB algorithm in use doesn't allow for weighted nodes")
service_binding_obj["weight"] = node["weight"]
return service_binding_obj
def _get_netscaler_addservicestatus_task(self, loadBalancerId, loadBalancer, nodeId, node):
if not "condition" in node:
return None
service_name = NitroUtils.get_servicename_from_nodeid(loadBalancerId, nodeId)
service = {}
service["name"] = service_name
task = {}
task["type"] = "service"
task["name"] = service_name
task["state"] = service
if node.condition == "ENABLED":
task["operation"] = "ENABLE"
else:
task["operation"] = "DISABLE"
return task