How do I enable SIS Import for a vanilla Docker instance of Canvas?

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I'm using this Docker image to do some LTI related development.  I'm trying to bulk upload data for test purposes, but have been unable to find a way to turn on SIS Imports.  I found this article which states that we need a Customer Success Manager to enable this feature.  How do I import SIS data to a Canvas account? 

SIS Imports must be enabled by your Customer Success Manager before files can be uploaded to your account.

Is the SIS Import feature only available to 'hosted' instances of Canvas, or can this otherwise be enabled on a vanilla customer hosted installation?