def number_of_nodes(ctxt):
"""
data = {}
Uses the monitoredservice Cloudforms tag to retrieve number of nodes
"""
monitoredservice = ctxt["service"].infrastructure.name
machines = get_vms_by_service(monitoredservice)
return len(machines)
def snmp_oid_service_avg(ctxt):
"""
REtrieves service infrastructure from ctxt
data = {
"snmp_read_comunity": "....",
"snmp_variable": "...."
}
"""
import sys
# logging.basicConfig(level=logging.DEBUG, stream=sys.stdout)
try:
data = _load_data(ctxt["service"].data)
monitoredservice = ctxt["service"].infrastructure.name
machines = get_vms_by_service(monitoredservice)
# print("Returned machines: %s" % machines)
values = []
for machine in machines:
logging.debug("[metric: snmp_oid_service_avg] quering variable %s in machine: %s " % (data["snmp_variable"], machine.name))
try:
name = machine.name
community = data.get("snmp_read_comunity", "public")
variable = data["snmp_variable"]
logging.debug("Machine: %s, Community: %s, variable: %s" % (name, community, variable))
ret = get_variable(name, 514, community, ".1.3.6.1.4.1.2021.11.9.0")
logging.debug("[metric: snmp_oid_service_avg] retrieved: %s " % ret)
values.append(ret)
except Exception as err:
logging.error("[metric: snmp_oid_service_avg] reading snmp variable from machine %s got error: %s" % (machine.name, err))
if not len(values):
logging.debug("[metric: snmp_oid_service_avg] no values, returning 0")
return 0
tot = 0
for val in values:
tot += float(val)
tot /= len(values)
logging.debug("[metric: snmp_oid_service_avg] snmp query returned: %s" % tot)
logging.debug("[metric: snmp_oid_service_avg] metric ended")
return tot
except Exception as er:
logging.error("[metric: snmp_oid_service_avg] Exception: %s" % er)
return 0
