mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2024-12-23 23:50:03 -06:00
2832621512
* move WSGI app code to main code base so it can be used with other WSGI servers that expect a Python package. * populate LDAP schema early to speed up first request by ~200ms * gc.collect() and gc.freeze() to improve memory handling and GC Signed-off-by: Christian Heimes <cheimes@redhat.com> Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
#
|
|
# Copyright (C) 2021 FreeIPA Contributors see COPYING for license
|
|
#
|
|
"""WSGI server application
|
|
"""
|
|
import gc
|
|
import logging
|
|
import os
|
|
import sys
|
|
|
|
# Some dependencies like Dogtag's pki.client library and custodia use
|
|
# python-requsts to make HTTPS connection. python-requests prefers
|
|
# PyOpenSSL over Python's stdlib ssl module. PyOpenSSL is build on top
|
|
# of python-cryptography which trigger a execmem SELinux violation
|
|
# in the context of Apache HTTPD (httpd_execmem).
|
|
# When requests is imported, it always tries to import pyopenssl glue
|
|
# code from urllib3's contrib directory. The import of PyOpenSSL is
|
|
# enough to trigger the SELinux denial.
|
|
# Block any import of PyOpenSSL's SSL module by raising an ImportError
|
|
sys.modules["OpenSSL.SSL"] = None
|
|
|
|
from ipaplatform.paths import paths
|
|
from ipalib import api
|
|
from ipapython import ipaldap
|
|
|
|
logger = logging.getLogger(os.path.basename(__file__))
|
|
|
|
|
|
def populate_schema_cache(api=api):
|
|
"""populate schema cache in parent process
|
|
|
|
LDAP server schema is available for anonymous binds.
|
|
"""
|
|
conn = ipaldap.ldap_initialize(api.env.ldap_uri)
|
|
try:
|
|
ipaldap.schema_cache.get_schema(api.env.ldap_uri, conn)
|
|
except Exception as e:
|
|
logger.error("Failed to pre-populate LDAP schema cache: %s", e)
|
|
finally:
|
|
try:
|
|
conn.unbind_s()
|
|
except AttributeError:
|
|
# SimpleLDAPObject has no attribute '_l'
|
|
pass
|
|
|
|
|
|
def create_application():
|
|
api.bootstrap(context="server", confdir=paths.ETC_IPA, log=None)
|
|
|
|
try:
|
|
api.finalize()
|
|
except Exception as e:
|
|
logger.error("Failed to start IPA: %s", e)
|
|
raise
|
|
|
|
# speed up first request to each worker by 200ms
|
|
populate_schema_cache()
|
|
|
|
# collect garbage and freeze all objects that are currently tracked by
|
|
# cyclic garbage collector. We assume that vast majority of currently
|
|
# loaded objects won't be removed in requests. This speeds up GC
|
|
# collections and improve CoW memory handling.
|
|
gc.collect()
|
|
if hasattr(gc, "freeze"):
|
|
# Python 3.7+
|
|
gc.freeze()
|
|
|
|
# This is the WSGI callable:
|
|
def application(environ, start_response):
|
|
if not environ["wsgi.multithread"]:
|
|
return api.Backend.wsgi_dispatch(environ, start_response)
|
|
else:
|
|
logger.error(
|
|
"IPA does not work with the threaded MPM, "
|
|
"use the pre-fork MPM"
|
|
)
|
|
raise RuntimeError("threaded MPM detected")
|
|
|
|
return application
|
|
|
|
|
|
if __name__ == "__main__":
|
|
application = create_application()
|