offloading: init MR of offloading POC
This is a part of a series of MRs that merge repository offloading POC code into Gitaly codebase.
In this MR, we do some initial works:
- Gitaly configuration
-
OffloadRepository
andRehydrateRepository
RPC proto definitions - Unimplemented place holder functions to show the data flow in the scenario without transaction. The one with transaction is in this MR !7406
Partially Closes(1/2) #6482
Edited by Eric Ju