REMOTE_USER authentication for Sentry 6.3.0

apache.conf

WSGIDaemonProcess sentry display-name=wsgi-sentry user=sentry group=sentry processes=1 threads=4
WSGIScriptAlias / /path/to/sentry.wsgi
<Location />
  WSGIApplicationGroup %{GLOBAL}
  WSGIProcessGroup sentry
  AuthType Basic
  AuthName "sentry"
  AuthUserFile /path/to/htpasswd
  Require valid-user
</Location>
<LocationMatch "^/api(/\d+)?/store/?$">
  Allow from all
  Satisfy Any
</LocationMatch>

settings.conf.py

from sentry.conf.server import *

...

# Allow anybody in Apache's htpasswd file to log in
MIDDLEWARE_CLASSES += (
    'django.contrib.auth.middleware.RemoteUserMiddleware',
)
AUTHENTICATION_BACKENDS = (
    'django.contrib.auth.backends.RemoteUserBackend',
) + AUTHENTICATION_BACKENDS

# Allow anybody who has logged in to view any of the projects
SENTRY_PUBLIC = True