cryptography.fernet.InvalidToken when attempting to access connections

[Lewis John McGibbney <le...@apache.org>]

Hi users@,
I am deploying the airflow chart from main branch into k3d and encountered the following Exception trace.
Has anyone experienced this before?
Thanks
lewismc

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Python version: 3.6.13
Airflow version: 2.1.0
Node: airflow-webserver-67d745bff9-5sm7w
-------------------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line 2447, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line 1952, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line 1821, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/airflow/.local/lib/python3.6/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line 1950, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line 1936, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/airflow/.local/lib/python3.6/site-packages/flask_appbuilder/security/decorators.py", line 109, in wraps
    return f(self, *args, **kwargs)
  File "/home/airflow/.local/lib/python3.6/site-packages/flask_appbuilder/views.py", line 551, in list
    widgets = self._list()
  File "/home/airflow/.local/lib/python3.6/site-packages/flask_appbuilder/baseviews.py", line 1134, in _list
    page_size=page_size,
  File "/home/airflow/.local/lib/python3.6/site-packages/flask_appbuilder/baseviews.py", line 1033, in _get_list_widget
    page_size=page_size,
  File "/home/airflow/.local/lib/python3.6/site-packages/flask_appbuilder/models/sqla/interface.py", line 435, in query
    query_results = query.all()
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3373, in all
    return list(self)
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/loading.py", line 100, in instances
    cursor.close()
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py", line 70, in __exit__
    with_traceback=exc_tb,
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 182, in raise_
    raise exception
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/loading.py", line 80, in instances
    rows = [proc(row) for row in fetch]
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/loading.py", line 80, in <listcomp>
    rows = [proc(row) for row in fetch]
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/loading.py", line 601, in _instance
    state.manager.dispatch.load(state, context)
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/event/attr.py", line 322, in __call__
    fn(*args, **kw)
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/mapper.py", line 3397, in _event_on_load
    instrumenting_mapper._reconstructor(state.obj())
  File "/home/airflow/.local/lib/python3.6/site-packages/airflow/models/connection.py", line 150, in on_db_load
    if self.password:
  File "/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/attributes.py", line 365, in __get__
    retval = self.descriptor.__get__(instance, owner)
  File "/home/airflow/.local/lib/python3.6/site-packages/airflow/models/connection.py", line 235, in get_password
    return fernet.decrypt(bytes(self._password, 'utf-8')).decode()
  File "/home/airflow/.local/lib/python3.6/site-packages/cryptography/fernet.py", line 194, in decrypt
    raise InvalidToken
cryptography.fernet.InvalidToken