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handle glitches on check opnsense traffic for host

This commit is contained in:
Cyberes 2023-05-03 12:10:40 -06:00
parent 319851ea94
commit 9f9cef96fe
1 changed files with 35 additions and 14 deletions
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35
check_opnsense_traffic_for_host.py
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@ -18,9 +18,12 @@ def main():
parser.add_argument('--opnsense', required=True, help='OPNsense hostname or IP address.') parser.add_argument('--opnsense', required=True, help='OPNsense hostname or IP address.')
parser.add_argument('--key', required=True, help='OPNsense API key.') parser.add_argument('--key', required=True, help='OPNsense API key.')
parser.add_argument('--secret', required=True, help='OPNsense API secret.') parser.add_argument('--secret', required=True, help='OPNsense API secret.')
parser.add_argument('--interface', required=True, help='Interface to check (e.g., lan). Can be something like "lan,wan"') parser.add_argument('--interface', required=True,
help='Interface to check (e.g., lan). Can be something like "lan,wan"')
parser.add_argument('--host', required=True, help='Address of the host to check.') parser.add_argument('--host', required=True, help='Address of the host to check.')
parser.add_argument('--duration', default=10, type=int, help='How many seconds to gather statistics.') parser.add_argument('--duration', default=10, type=int, help='How many seconds to gather statistics.')
parser.add_argument('--fail-empty', action='store_true',
help='If the API did not return any data, fail with UNKNOWN. Otherwise, assume that there was no traffic.')
args = parser.parse_args() args = parser.parse_args()
check_result = {} check_result = {}
@ -30,9 +33,11 @@ def main():
# Map interface names to their internal names # Map interface names to their internal names
interfaces_mapping = requests.get(f'https://{args.opnsense}/api/diagnostics/traffic/interface', interfaces_mapping = requests.get(f'https://{args.opnsense}/api/diagnostics/traffic/interface',
headers={'Accept': 'application/json'}, auth=(args.key, args.secret), verify=False, timeout=10) headers={'Accept': 'application/json'}, auth=(args.key, args.secret),
verify=False, timeout=10)
if interfaces_mapping.status_code != 200: if interfaces_mapping.status_code != 200:
print(f'UNKNOWN: unable to query OPNsense API for interface mappings: {interfaces_mapping.status_code}\n{interfaces_mapping.text}') print(
f'UNKNOWN: unable to query OPNsense API for interface mappings: {interfaces_mapping.status_code}\n{interfaces_mapping.text}')
sys.exit(nagios.UNKNOWN) sys.exit(nagios.UNKNOWN)
interfaces_mapping = interfaces_mapping.json()['interfaces'] interfaces_mapping = interfaces_mapping.json()['interfaces']
interfaces_to_check = set(args.interface.split(',')) interfaces_to_check = set(args.interface.split(','))
@ -51,7 +56,8 @@ def main():
traffic_data = [] traffic_data = []
for _ in range(args.duration): for _ in range(args.duration):
response = requests.get(f'https://{args.opnsense}/api/diagnostics/traffic/top/{interface}', response = requests.get(f'https://{args.opnsense}/api/diagnostics/traffic/top/{interface}',
headers={'Accept': 'application/json'}, auth=(args.key, args.secret), verify=False, timeout=10) headers={'Accept': 'application/json'}, auth=(args.key, args.secret), verify=False,
timeout=10)
if response.status_code != 200: if response.status_code != 200:
print(f'UNKNOWN: unable to query OPNsense API for {interface}: {response.status_code}\n{response.text}') print(f'UNKNOWN: unable to query OPNsense API for {interface}: {response.status_code}\n{response.text}')
sys.exit(nagios.UNKNOWN) sys.exit(nagios.UNKNOWN)
@ -60,10 +66,20 @@ def main():
traffic_data.append(item) traffic_data.append(item)
time.sleep(1) time.sleep(1)
if not len(traffic_data): if not len(traffic_data) and args.fail_empty:
print('UNKNOWN: Interface or host not found in OPNsense API response.') print('UNKNOWN: Interface or host not found in OPNsense API response. Raw response:')
print(traffic_data)
sys.exit(nagios.UNKNOWN) sys.exit(nagios.UNKNOWN)
elif not len(traffic_data):
traffic_data = {
'rate_bits_in': 0,
'rate_bits_out': 0,
'cumulative_bytes_in': 0,
'cumulative_bytes_out': 0,
'details': 0
}
try:
check_result[name] = { check_result[name] = {
'rate_in': np.average([x['rate_bits_in'] for x in traffic_data]), 'rate_in': np.average([x['rate_bits_in'] for x in traffic_data]),
'rate_out': np.average([x['rate_bits_out'] for x in traffic_data]), 'rate_out': np.average([x['rate_bits_out'] for x in traffic_data]),
@ -71,6 +87,10 @@ def main():
'cumulative_out': np.average([x['cumulative_bytes_out'] for x in traffic_data]), 'cumulative_out': np.average([x['cumulative_bytes_out'] for x in traffic_data]),
'connections': int(np.average([len(x['details']) for x in traffic_data])) 'connections': int(np.average([len(x['details']) for x in traffic_data]))
} }
except:
print('Failed to parse traffic data.')
print(traffic_data)
sys.exit(nagios.UNKNOWN)
# TODO: figure out status # TODO: figure out status
print('OK: no metrics defined.') print('OK: no metrics defined.')
@ -105,7 +125,8 @@ def main():
output_table = [ output_table = [
('Host', 'Interface', 'Rate In', 'Rate Out', 'Cumulative In', 'Cumulative Out', 'Connections', 'Status'), ('Host', 'Interface', 'Rate In', 'Rate Out', 'Cumulative In', 'Cumulative Out', 'Connections', 'Status'),
(args.host, name, filesize(data['rate_in']), filesize(data['rate_out']), filesize(data['cumulative_in']), filesize(data['cumulative_out']), data['connections'], status) (args.host, name, filesize(data['rate_in']), filesize(data['rate_out']), filesize(data['cumulative_in']),
filesize(data['cumulative_out']), data['connections'], status)
] ]
print(list_to_markdown_table(output_table, align='left', seperator='!', borders=False)) print(list_to_markdown_table(output_table, align='left', seperator='!', borders=False))