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Has anyone written anything up about expectations for how "Big Tent" or 
"Neutron Stadium" projects are expected to be 
installed/distributed/packaged?

In particular, I'm wondering how we're supposed to handle changes to 
Neutron components. For the networking-sfc project we need to make 
additions to the API and corresponding additions to neutronclient as 
well as modifying the OvS agent to configure new flow table entries in OvS.

The code is in a separate Git repo as is expected of a Stadium project 
but it doesn't make sense that we would package altered copies of files 
that are deployed by the regular Neutron packages.

Should we be creating 99%+ of the functionality in filenames that don't 
conflict and then making changes to files in the Neutron and 
neutronclient repos to stitch together the 1% that adds our new 
functionality to the existing components? Or do we stage the code in the 
Stadium project's repo then subsequently request to merge it into the 
neutron/neutronclient repo? Or is there some other preferred way to 
integrate the added features?