[AIRFLOW-6865] [Airflow] webserver crashes with both RBAC and 'force_log_out_after' set

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.10.9
• Component/s: webserver
• Assignee: Unassigned
• Reporter: Noël BARDELOT
• Created: 21/Feb/20 10:34
• Updated: 21/Feb/20 14:36

Description

To reproduce:

• activate authentication (AIRFLOW_WEBSERVER_AUTHENTICATE = True)
• activate RBAC (AIRFLOW_WEBSERVER_RBAC = True)
• set AIRFLOW_WEBSERVER_FORCE_LOG_OUT_AFTER to something different than the default 0 (example: 5 minutes)

I've traced back the issue to the following commit:

https://github.com/apache/airflow/commit/0721d62bf1b23a471d7fe97ccf108db9f92403ef

[2020-02-20 16:43:54,426] {{app.py:1891}} ERROR - Exception on /health [GET]
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 2446, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1951, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1820, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.7/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1947, in full_dispatch_request
    rv = self.preprocess_request()
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 2241, in preprocess_request
    rv = func()
  File "/usr/local/lib/python3.7/site-packages/airflow/www_rbac/app.py", line 246, in before_request
    flask.session.permanent = True
NameError: name 'flask' is not defined