#!/bin/bash

# This script checks whether the 'lifesigns' service is active and listening on TCP port 1022.
# It uses 'systemctl' to verify the service state and 'ss' to confirm the socket is in LISTEN mode.
# Returns:
#   OK (0)       - if the service is active and listening
#   CRITICAL (2) - if the service is not active or not listening on port 1022

# Run the systemctl command and extract the value of "Active" field
listen=$(ss -tunl | awk '/0.0.0.0:1022/ {print $2}')

# Check the status and return the appropriate exit code
if [[ $listen == "LISTEN" ]]; then
	echo "OK: Service lifesign is running"
	exit 0
else
	echo "Critical: Service lifesign is not running"
	exit 2
fi