Create a plugin for Canvas integration

[pdpinch]

In the lilac branch for residential, we added a great deal of code to allow for Canvas integration. We should put as much as possible of it into a django plugin that can be pip installed, and run within the edx-platform process.

acceptance criteria

• include relevant code from mitodl/edx-platform@006010b
• include relevant code from mitodl/edx-platform@99656549b4
• include relevant code from mitodl/edx-platform@b61152ac70
• review code to determine what can go in plugin and what must be part of edx-platform (for example, instructor dashboard front-end code)
• remove any Stellar/LMOD remote gradebook code

[arslanashraf7]

@pdpinch Do we have any testing instructions/documentation on how to test Canvas integration? My plan is to actually test it before moving forward to identify the whole scope of the canvas integration.

[arslanashraf7]

@pdpinch There are a few things regarding:

remove any Stellar/LMOD remote gradebook code

1. Could you give a pointer about, When we talk about Stellar/LMOD part what is it that we're looking at? (Some third-party integration maybe)
2. Or, Do we need to just remove the remote_gradebook Django app? If we go for removing this app we might need to port some of its functionality to canvas integration since canvas app uses its API (Ref:)
3. If we don't want to remove the whole remote_gradebook app we might be looking for two things:
   • As we are creating canvas_integration pluggable app we might need to do the same for remote_gradebook and make that a pluggable app too.
   • OR should we merge the remote_gradebook and canvas integration into a single app (I expect the chance of more breaking changes)

[pdpinch]

Sorry this wasn't clear. I believe remote_gradebook is the app that connects LMS to Stellar/LMOD. We don't want to maintain that connection any more, so you should remove as much of it as you can.

I think it would be best to move any canvas dependencies into the canvas_integration app, but I'm not sure what's easiest.

[arslanashraf7]

Closed via #8, mitodl/edx-platform#274 & as additionally with a documentation PR (#19).

Note: I have created some other tickets(#10, #11, #12, #13, #16) in extensions to this epic but they are mostly enhancements/refactor. so I'm closing this ticket and we can work on them independently when suitable.