code-dumps/py/port-test-with-cw-metric.py

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2024-02-22 15:37:33 +08:00
import json
import socket
import boto3
import logging
logger = logging.getLogger()
logger.setLevel(logging.INFO)
def lambda_handler(event, context):
hosts=['10.129.72.63', '10.135.72.66', '10.129.72.64', '10.135.72.67']
port=636
timeout_seconds=3
test_results = 0
metric_value = 0
for host in hosts:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(timeout_seconds)
result = sock.connect_ex((host,int(port)))
if result == 0:
logger.info("Host {}:{} - Up".format(host, port))
test_results += 1
metric_value = 1
else:
logger.error("Host {}:{} - Down".format(host, port))
metric_value = 0
sock.close()
logger.info("Publishing cloudwatch metric...")
cloudwatch = boto3.client('cloudwatch')
try:
response = cloudwatch.put_metric_data(
MetricData=[
{
'MetricName': 'Ldap Tcp Test',
'Dimensions': [
{
'Name': 'LdapHost',
'Value': host
}
],
'Unit': 'None',
'Value': metric_value
},
],
Namespace='Custom/Lambda'
)
logger.info("Successfully published cloudwatch metric")
# logger.info(response)
except Exception as e:
logger.error("Error publishing cloudwatch metric: {}".format(str(e)))
if test_results == 4:
return {
'message' : 'Successfully connected to all LDAP servers'
}
else:
raise Exception('Not all LDAP servers can be connected!')
return {
'statusCode': 200,
'body': json.dumps("Finished")
}