feat: add Google Cloud Storage support (GCS)

[shadinaif]

TL;DR - This is to add support to GCS files backend by adding a new option (gcs) to ORA2_FILEUPLOAD_BACKEND

JIRA: ---

What changed?

• ORA2_FILEUPLOAD_BACKEND environment variable accepts a new value gcs in addition to the existing options (s3, filesystem, swift, and django)
• No changes to the requirements. It is assumed that you already installed django-storages[google] instead of the default django-storages which will include google-cloud-storages

Important to know! Using GSC with ORA means that edx-platform is already configured to use GCS instead of S3

• It is assumed that you already installed django-storages[google] instead of the default django-storages which will include google-cloud-storages
• It is assumed that DEFAULT_FILE_STORAGE is set to storages.backends.gcloud.GoogleCloudStorage in edx-platform. Other configurations might be needed too
• It is assumed that edx-platform functions directly and seamlessly with GCS without a proxy like MinIO or boto3

Developer Checklist

• [x] Reviewed the release process
• [x] Translations and JS/SASS compiled~~ not needed
• [ ] Bumped version number in openassessment/__init__.py and package.json

Testing Instructions

Using tutor development:

• Prepare your GSC storage, make sure to have a dedicated bucket for file upload
• Configure edx-platform to use GCS, including the installation of django-storages[google]
• Configure ORA2 to use GCS by setting ORA2_FILEUPLOAD_BACKEND to gcs
• Configure the dedicated bucket by setting FILE_UPLOAD_STORAGE_BUCKET_NAME
• Test uploading files from ORA2 and previewing them
• Test previewing uploaded files in ora2 MFE
• Verify that files exist in the dedicated storage
• Test deleting files
• Verify that files were deleted from the dedicated storage

Reviewer Checklist

Collectively, these should be completed by reviewers of this PR:

• [ ] I've done a visual code review
• [ ] I've tested the new functionality

FYI: @openedx/content-aurora

[openedx-webhooks]

Thanks for the pull request, @shadinaif!

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[itsjeyd]

@shadinaif Thank you for this contribution! Let us know when the changes are ready for review.

[itsjeyd]

Hey @shadinaif, just checking in to see if you're still planning to continue working on this PR?

[shadinaif]

Thank you for the reminder @itsjeyd . Yes, it's on production and working fine. I'll rebase and set to review soon

[itsjeyd]

@shadinaif Sounds good, thanks for the update.

[itsjeyd]

Hey @shadinaif, do you have any updates about when you'll be able to come back to this PR?

[shadinaif]

Thanks for the follow-up @itsjeyd , I'll get back to it and complete it on Tuesday, June 4, 2024 I promise. I've added it to my schedule. Sorry for the delay 🙏🏼

[itsjeyd]

Sounds good, thanks for the update @shadinaif.

[itsjeyd]

@shadinaif It looks like tests will need some further tweaking here. Could you have a look?

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.12%. Comparing base (8b320d6) to head (8fd1c39). Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2193      +/-   ##
==========================================
+ Coverage   95.09%   95.12%   +0.02%     
==========================================
  Files         195      196       +1     
  Lines       21479    21584     +105     
  Branches     1931     1935       +4     
==========================================
+ Hits        20425    20531     +106     
  Misses        787      787              
+ Partials      267      266       -1     

Flag	Coverage Δ
unittests	95.12% <100.00%> (+0.02%)	:arrow_up:

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[itsjeyd]

Hey @shadinaif, thanks for working on the tests.

It looks like some of them are still failing. Will you be taking another look?

[shadinaif]

Thanks for the reminder @itsjeyd , I'll do in a couple of days 👍🏼

[itsjeyd]

@shadinaif Just checking in to see if you're still planning to continue working on this PR? If you don't think you'll get to it in the short term, it might make sense to close it for the time being.

[shadinaif]

@itsjeyd thank you for your patience on this. I've added the needed tests, and I also had to fix some linter errors not related to the PR. All green now

[itsjeyd]

@shadinaif Great! I'm marking this PR as ready for review now.

[itsjeyd]

Hi @openedx/2u-aurora team, this PR is ready for engineering review.

@feanil I can't formally request a review from the Aurora team, could you please update the team's permissions for this repo to make that possible?

[feanil]

Added the team to the repo and tagged them for review.