freeipa/doc/guide/wsgi.py.txt

from ipalib import api
from ipalib.config import Env
from ipalib.constants import DEFAULT_CONFIG

# Determine what debug level is configured. We can only do this
# by reading in the configuration file(s). The server always reads
# default.conf and will also read in `context'.conf.
env = Env()
env._bootstrap(context='server', log=None)
env._finalize_core(**dict(DEFAULT_CONFIG))

# Initialize the API with the proper debug level
api.bootstrap(context='server', debug=env.debug, log=None) (ref:wsgi-app-bootstrap)
try:
    api.finalize() (ref:wsgi-app-finalize)
except Exception as e:
    api.log.error('Failed to start IPA: %s' % e)
else:
    api.log.info('*** PROCESS START ***')

    # This is the WSGI callable:
    def application(environ, start_response): (ref:wsgi-app-start)
        if not environ['wsgi.multithread']:
            return api.Backend.session(environ, start_response)
        else:
            api.log.error("IPA does not work with the threaded MPM, use the pre-fork MPM") (ref:wsgi-app-end)