Global ConfigOpts

This module also contains a global instance of the ConfigOpts class in order to support a common usage pattern in OpenStack:

from oslo_config import cfg

opts = [
    cfg.StrOpt('bind_host', default='0.0.0.0'),
    cfg.PortOpt('bind_port', default=9292),
]

CONF = cfg.CONF
CONF.register_opts(opts)

def start(server, app):
    server.start(app, CONF.bind_port, CONF.bind_host)