Code to generate ORCA Input JSON

[krisstanton]

We have ORCA implemented on Cumulus.
In the event that we need to use ORCA to restore granules and their files, there is a required input JSON.
See Ticket (TESTING_ORCA_TICKET)

• Add relevant info to this ticket (including looking up the ORCA tests and adding an example of the JSON needed to trigger a run
  • Update: Link to example of Working ORCA Recovery JSON Input: Troubleshoot ORCA Final Recovery Step in UAT #279 (comment)
  • Completion of ticket: Upgrade Cumulus from v18.2 to v18.5 #385 and Research Cumulus Upgrade and make stable plan here #384
    • Perform another, more recent (after the most recent Cumulus and ORCA Upgrades) successful restore from ORCA of 2 files from separate granules using the input on the step function.
      • (Verify that it works)
  • Include what all the keys mean
• Write python code which will
  • Accept input of an array of granules (array of size one should also work)
  • Output the JSON that ORCA expects as an input when used to trigger a recovery operation
• This code needs to be portable enough to function from inside of a DAG which may be used to trigger the recovery in the future.
• Add this code to the local Cumulus repository in a reference area.
  • Utils Directory
  • Document the steps to use ORCA
  • Pull Request Approved

[krisstanton]

WIP Update:
Here is a reference to the JSON that worked on an ORCA Recovery
#279 (comment)