Added command line argument for explicite CA certificate choice

dynamic-leases.py

@@ -8,17 +8,20 @@ from datetime import datetime
 from pathlib import Path
 
 api_url = "https://pi.hole/api"
-verify = "/etc/pihole/tls_ca.crt"
+default_ca_cert = "/etc/pihole/tls_ca.crt"
 default_password_file = "/etc/pihole/api_password"
 
 parser = argparse.ArgumentParser(description="List non-static (dynamic) Pi-hole DHCP leases.")
 parser.add_argument("-p", "--password-file", default=default_password_file,
                      help=f"Path to file containing the Pi-hole API password (default: {default_password_file})")
+parser.add_argument("-c", "--ca-cert", default=default_ca_cert,
+                     help=f"Path to the Pi-hole TLS CA certificate for verification (default: {default_ca_cert})")
 parser.add_argument("-t", "--table", action="store_true",
                      help="Print a human-readable aligned table (with local time expiry)")
 parser.add_argument("-j", "--json", action="store_true",
                      help="Print machine-readable output as JSON instead of the default CSV")
 args = parser.parse_args()
+verify = args.ca_cert
 
 if args.table and args.json:
 	parser.error("--table and --json are mutually exclusive")