NC | IAM | Return Empty List On Unimplemented Operations (list-group-for-user)

[shirady]

Describe the Problem

Currently, we have implemented a couple of operations in IAM that are related to Users and Access keys, but for the rest of the cases, we fail the request with the error NotImplemented. There are automated tools that use it and under the hood use the operation list-group-for-user.

Explain the Changes

1. Add the operation list-group-for-user to the constants and add a handler that always returns an empty list on existing user.

Issues:

1. Currently we throw the error NotImplemented on list-group-for-user (and on every unsupported operation).

GAP - we would like to do this kind of implementation for other list operation in IAM as well (in a separate PR).

Testing Instructions:

Automatic Tests:

Please run: sudo NC_CORETEST=true node ./node_modules/mocha/bin/mocha ./src/test/unit_tests/test_nc_iam_basic_integration.js

Manual Tests

1. Create an account with noobaa CLI: sudo node src/cmd/manage_nsfs account add --name <account-name> --new_buckets_path /Users/buckets/ --access_key <access-key> --secret_key <secret-key> --uid <uid> --gid <gid>
   Note: before creating the account need to give permission to the new_buckets_path: chmod 777 /Users/buckets/.
2. Start the NSFS server (using debug mode and the port for IAM): sudo node src/cmd/nsfs --debug 5 --https_port_iam 7005
3. Create the alias for IAM service:
   alias nc-user-1-iam='AWS_ACCESS_KEY_ID=<access-key> AWS_SECRET_ACCESS_KEY=<secret-key> aws --no-verify-ssl --endpoint-url https://localhost:7005'
4. Create a user: nc-user-1-iam iam create-user --user-name Bob
5. Check the list-group-for-user: nc-user-1-iam iam list-groups-for-user --user-name Bob (and expect to see empty list)
6. Check the list-group-for-user on non-exsiting-user: nc-user-1-iam iam list-groups-for-user --user-name non-existing-user (and expect to see an error NoSuchEntity)

• Doc added/updated
• Tests added