I want to monitor a server using AWS Lambda function with Python 3.9 version.
I'm using ping test connection and here's my code
import subprocess import platform def lambda_handler(event, context): SERVERS = [ ('203.124.136.164', 'Local Host 1') ] for (server, name) in SERVERS: check_connection(server, name) def check_connection(server, name): if ping(server): print("%s is UP" % (name)) else: print("%s is DOWN" % (name)) def ping(server): try: output = subprocess.check_output("ping -{} 1 {}".format('n' if platform.system().lower() == "windows" else 'c', server ), shell=True, universal_newlines=True) if 'unreachable' in output: print('unreachable') return False elif 'timed out' in output: print('timed out') return False else: print('success') return True except Exception as err: print("An error occurred: %s" % (err.__str__())) return False But I got an error:
/bin/sh: ping: command not found An error occurred: Command 'ping -c 1 203.124.136.164' returned non-zero exit status 127. Why I got that error and what is the right implementation to monitor a server using IP? I'm just a beginner. Please help!
Disclaimer: the IP provided on the code is just dummy.
1 Answer
I think AWS Lambda doesn't allow for ICMP to go outbound. It only allows for TCP or UDP outbound so since ping is neither it doesn't work. Even if you try to make a custom layer and import to Lambda you will get a permissions error since ICMP is not allowed.
Sorry my friend, the easiest work around I believe would to make a T1.micro to run the full python code.
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