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https://issues.apache.org/jira/browse/AIRFLOW-2710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16531865#comment-16531865
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Matthew Thorley commented on AIRFLOW-2710:
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Link to pull request https://github.com/apache/incubator-airflow/pull/3574
> Configuration documentation is misleading to the uninitiated
> ------------------------------------------------------------
>
> Key: AIRFLOW-2710
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2710
> Project: Apache Airflow
> Issue Type: Bug
> Components: Documentation
> Reporter: Matthew Thorley
> Priority: Major
>
> The documentation on this page on the configuration page
> [https://airflow.apache.org/configuration.html] is slightly misleading
> It says
> 2. Generate fernet_key, using this code snippet below. fernet_key must be a
> base64-encoded 32-byte key.
> from cryptography.fernet import Fernet fernet_key= Fernet.generate_key()
> print(fernet_key) # your fernet_key, keep it in secured place!
> 3. Replace {{airflow.cfg}} fernet_key value with the one from step 2.
> The value returned in step one is something like
> b'K_8Yv52REP1qsa7OPupKYJe_CzngMI_KqwfM-2qAyVs='
> which lead me to believe the config was suppose to be
> fernet_key = b'K_8Yv52REP1qsa7OPupKYJe_CzngMI_KqwfM-2qAyVs='
> When in fact it should be
> fernet_key = K_8Yv52REP1qsa7OPupKYJe_CzngMI_KqwfM-2qAyVs=
> I assumed the config parse needed to know it was a byte string and would
> handle the value correctly. After wasting 30mins I was able to figure out the
> solution, and probably could have arrived at it sooner had I been more
> familiar with python.
> But I recommend changing the docs as below to avoid confusion for other new
> users.
>
> from cryptography.fernet import Fernet fernet_key= Fernet.generate_key()
> print(fernet_key.decode()) # your fernet_key, keep it in secured place!
>
>
> I'll submit a pr for this shortly.
>
>
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