check_su_fortinet-analyzer-mem

#!/usr/bin/python

#
# Written by Magnus 'Magnux' Svensson 2017-08-30.
#

#################################
#                               #
# Check for Fortinet Analyzer.  #
#            MEM                #
#                               #
#################################

from easysnmp import Session
import argparse
import sys
import math

oid_tot = '1.3.6.1.4.1.12356.103.2.1.3'
oid_used = '1.3.6.1.4.1.12356.103.2.1.2'

print_template = 'MEM: {:.2f} % free'

parser = argparse.ArgumentParser()
parser.add_argument(
            '-H',
            help = 'Host fqdn is needed!',
            required=True,
)

parser.add_argument(
            '-C',
            help = 'Community is needed!',
            required=True,
)

parser.add_argument(
            '-c',
            help = 'Critical values are needed!',
            type=int,
)

parser.add_argument(
            '-w',
            help = 'warning values are needed!',
            type=int,
)

args = parser.parse_args()

my_hostname = args.H
my_community = args.C
warning = args.w
critical = args.c


def check_thresholds(critical, warning):
# check thresholds values
    if critical >= warning:
        print('Warning is lower or identical with critical, exiting...')
        sys.exit(-1)

# Create an SNMP session to be used for all requests
session = Session(hostname=my_hostname, community=my_community, version=2)



# Make the snmpwalk
def retrive_snmp_data(session,oid):
    items = session.walk(oid)
    for item in items:
        return '{value}'.format(value=item.value)

# Check thresholds and exit with appropriate exit code.
def checking(x,warning,critical, print_template):
    status = -1
    if int(x) == None:
        status = -1
    elif x > warning and x > critical:
        status = 0
    elif x <= warning:
        status = 1
        if x <= critical:
            status = 2
    if status == 1:
        print('WARNING: ' + print_template.format(x))
        sys.exit(1)
    elif status == 2:
        print('CRITICAL: ' + print_template.format(x))
        sys.exit(2)
    elif status == 0:
        print('OK: ' + print_template.format(x))
        sys.exit(0)
    elif status == -1:
        print('UNKNOWN: ' + print_template.format(x))
        sys.exit(-1)

check_thresholds(critical, warning)
disk_used = retrive_snmp_data(session,oid_used)
disk_tot =retrive_snmp_data(session,oid_tot)

if not (disk_used or disk_tot):
	print("Noooooooo...")
	sys.exit(1)

disk_free = ((float(disk_tot) - float(disk_used)) / float(disk_tot) * 100)


checking(disk_free,warning,critical, print_template)