sh

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from argparse import ArgumentParser
from subprocess import check_call
from os import path

def start_shell():
    """
    Starts a shell session in the target container.
    """

    # TODO: We could parse these from the `docker-compose.yaml` file instead
    # of hard-coding them, but for now this is easier.
    services = [ 'api', 'ui', 'proxy' ]

    arg_parser = ArgumentParser(
            description='A utility that opens a shell session in the specified web application container.',
            prog='sh')
    arg_parser.add_argument('service', type=str, help='The service container',
            choices=list(services))
    args = arg_parser.parse_args()

    check_call(
        [ 'docker-compose', 'exec', '--user', 'root', args.service, '/bin/sh' ], 
        cwd=path.realpath(path.dirname(__file__)))

if __name__ == '__main__':
    start_shell()