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Remove PyWSGI and move to Flask server 

Gevent was completely failure. The API would block during large file
uploads with no obvious solutions beyond "use gunicorn", which is not
suited to this. I originally had this working with the Flask "debug"
server, so just move to using that all the time. SSL is added using a
custom context with the OpenSSL library, so include that as a
dependency.
This commit is contained in:
Joshua Boniface 2020-10-26 01:39:55 -04:00
parent adfe302f71
commit f85c2c2a75
3 changed files with 10 additions and 25 deletions
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31
api-daemon/pvcapid/Daemon.py
View File

@ -20,33 +20,16 @@
#
###############################################################################
from gevent import monkey
monkey.patch_all()
import gevent.pywsgi
import pvcapid.flaskapi as pvc_api
##########################################################
# Entrypoint
##########################################################
if pvc_api.config['debug']:
# Run in Flask standard mode
pvc_api.app.run(pvc_api.config['listen_address'], pvc_api.config['listen_port'], threaded=True)
else:
if pvc_api.config['ssl_enabled']:
# Run the WSGI server with SSL
http_server = gevent.pywsgi.WSGIServer(
(pvc_api.config['listen_address'], pvc_api.config['listen_port']),
pvc_api.app,
keyfile=pvc_api.config['ssl_key_file'],
certfile=pvc_api.config['ssl_cert_file']
)
else:
# Run the ?WSGI server without SSL
http_server = gevent.pywsgi.WSGIServer(
(pvc_api.config['listen_address'], pvc_api.config['listen_port']),
pvc_api.app
)
print('Starting PyWSGI server at {}:{} with SSL={}, Authentication={}'.format(pvc_api.config['listen_address'], pvc_api.config['listen_port'], pvc_api.config['ssl_enabled'], pvc_api.config['auth_enabled']))
http_server.serve_forever()
if pvc_api.config['ssl_enabled']:
context = (pvc_api.config['ssl_cert_file'], pvc_api.config['ssl_key_file'])
else:
context=None
print('Starting PVC API daemon at {}:{} with SSL={}, Authentication={}'.format(pvc_api.config['listen_address'], pvc_api.config['listen_port'], pvc_api.config['ssl_enabled'], pvc_api.config['auth_enabled']))
pvc_api.app.run(pvc_api.config['listen_address'], pvc_api.config['listen_port'], threaded=True, ssl_context=context)

2
api-daemon/pvcapid/flaskapi.py
View File

@ -124,6 +124,8 @@ app.config['SQLALCHEMY_DATABASE_URI'] = 'postgresql://{}:{}@{}:{}/{}'.format(con
if config['debug']:
app.config['DEBUG'] = True
else:
app.config['DEBUG'] = False
if config['auth_enabled']:
app.config["SECRET_KEY"] = config['auth_secret_key']

2
debian/control vendored
View File

@ -17,7 +17,7 @@ Description: Parallel Virtual Cluster node daemon (Python 3)
Package: pvc-daemon-api
Architecture: all
Depends: systemd, pvc-daemon-common, python3-yaml, python3-flask, python3-flask-restful, python3-gevent, python3-celery, python-celery-common, python3-distutils, redis, python3-redis, python3-lxml, python3-flask-migrate, python3-flask-script, fio
Depends: systemd, pvc-daemon-common, python3-yaml, python3-flask, python3-flask-restful, python3-openssl, python3-celery, python-celery-common, python3-distutils, redis, python3-redis, python3-lxml, python3-flask-migrate, python3-flask-script, fio
Description: Parallel Virtual Cluster API daemon (Python 3)
A KVM/Zookeeper/Ceph-based VM and private cloud manager
.