Skip to content

child_controller_server_cli

drunc.grpc_testing_tools.child_controller_server_cli

Command-line interface for ChildController gRPC Server

This module provides a standalone CLI for starting ChildController servers. It handles argument parsing and delegates to the main server runner function.

Functions

main()

Main entry point for ChildController server CLI.

Parses command-line arguments and starts the ChildController server with the specified configuration parameters.

Source code in drunc/grpc_testing_tools/child_controller_server_cli.py 
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
def main():
    """
    Main entry point for ChildController server CLI.

    Parses command-line arguments and starts the ChildController server
    with the specified configuration parameters.
    """
    parser = argparse.ArgumentParser(
        description="Start a ChildController gRPC server",
        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
    )

    # Required arguments
    parser.add_argument(
        "--port",
        type=int,
        required=True,
        help="TCP port number for the ChildController server to bind to",
    )
    parser.add_argument(
        "--workers",
        type=int,
        required=True,
        help="Maximum number of worker threads for the gRPC server",
    )
    parser.add_argument(
        "--log-file",
        required=True,
        help="Path to log file for server output and error messages",
    )
    parser.add_argument(
        "--root-port",
        type=int,
        required=True,
        help="Port number of the RootController server to connect to",
    )
    parser.add_argument(
        "--child-name",
        required=True,
        help="Unique identifier name for this ChildController instance",
    )

    args = parser.parse_args()

    try:
        print(f"Starting ChildController '{args.child_name}' on port {args.port}")
        print(f"Connecting to RootController on port {args.root_port}")
        print(f"Logging to: {args.log_file}")

        # Start the ChildController server with parsed arguments
        run_child_controller_server(
            controller_max_workers=args.workers,
            server_port=args.port,
            root_port=args.root_port,
            child_name=args.child_name,
            log_file=args.log_file,
        )

    except KeyboardInterrupt:
        print(f"\nChildController '{args.child_name}' interrupted by user")
    except Exception as e:
        print(f"ChildController '{args.child_name}' failed: {e}", file=sys.stderr)
        sys.exit(1)