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The Job Control Layer
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SSH-Tunnel to Remote Worker
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Sequence diagram showing actors' roles (user "root" running the docker application and one person using the
application) in the step that generates temporary SSH keys to establish a tunnel to the remote worker
in charge of running the fitting calculations (usually, analysis.sns.gov)

.. image:: images/ssh_keys.png
    :width: 800px
    :align: center
    :alt: pytest configuration