add -i option to update-hardware-config

pkgs/clan-cli/clan_cli/machines/hardware.py

@@ -1,5 +1,6 @@
 import argparse
 import logging
+from pathlib import Path
 
 from clan_lib.machines.hardware import (
     HardwareConfig,
@@ -30,9 +31,11 @@ def update_hardware_config_command(args: argparse.Namespace) -> None:
     if args.target_host:
         target_host = Remote.from_ssh_uri(
             machine_name=machine.name, address=args.target_host
-        ).override(host_key_check=host_key_check)
+        ).override(host_key_check=host_key_check, private_key=args.identity_file)
     else:
-        target_host = machine.target_host().override(host_key_check=host_key_check)
+        target_host = machine.target_host().override(
+            host_key_check=host_key_check, private_key=args.identity_file
+        )
 
     generate_machine_hardware_info(opts, target_host)
 
@@ -69,3 +72,9 @@ def register_update_hardware_config(parser: argparse.ArgumentParser) -> None:
         choices=["nixos-generate-config", "nixos-facter"],
         default="nixos-facter",
     )
+    parser.add_argument(
+        "-i",
+        dest="identity_file",
+        type=Path,
+        help="specify which SSH private key file to use",
+    )