def start(environment, opts):
    """Create containers and start serving environment

Usage:
  datacats start [-b] [--site-url SITE_URL] [-p|--no-watch] [-s NAME]
                 [-i] [--syslog] [--address=IP] [ENVIRONMENT [PORT]]
  datacats start -r [-b] [--site-url SITE_URL] [-s NAME] [--syslog]
                 [-i] [--address=IP] [ENVIRONMENT]

Options:
  --address=IP          Address to listen on (Linux-only)
  -b --background       Don't wait for response from web server
  --no-watch            Do not automatically reload templates and .py files on change
  -i --interactive      Calls out to docker via the command line, allowing
                        for interactivity with the web image.
  -p --production       Start with apache and debug=false
  -s --site=NAME        Specify a site to start [default: primary]
  --syslog              Log to the syslog
  --site-url SITE_URL   The site_url to use in API responses. Defaults to old setting or
                        will attempt to determine it. (e.g. http://example.org:{port}/)

ENVIRONMENT may be an environment name or a path to an environment directory.
Default: '.'
"""
    environment.require_data()

    if environment.fully_running():
        print 'Already running at {0}'.format(environment.web_address())
        return

    reload_(environment, opts)
Create containers and start serving environment

Usage:
  datacats start [-b] [--site-url SITE_URL] [-p|--no-watch] [-s NAME]
                 [-i] [--syslog] [--address=IP] [ENVIRONMENT [PORT]]
  datacats start -r [-b] [--site-url SITE_URL] [-s NAME] [--syslog]
                 [-i] [--address=IP] [ENVIRONMENT]

Options:
  --address=IP          Address to listen on (Linux-only)
  -b --background       Don't wait for response from web server
  --no-watch            Do not automatically reload templates and .py files on change
  -i --interactive      Calls out to docker via the command line, allowing
                        for interactivity with the web image.
  -p --production       Start with apache and debug=false
  -s --site=NAME        Specify a site to start [default: primary]
  --syslog              Log to the syslog
  --site-url SITE_URL   The site_url to use in API responses. Defaults to old setting or
                        will attempt to determine it. (e.g. http://example.org:{port}/)

ENVIRONMENT may be an environment name or a path to an environment directory.
Default: '.'