Create gRPC service to be used by the CLI

[adombeck]

The current state of #782 adds the gRPC methods used by the CLI to the NSS service. They don't belong there, so this PR adds a new gRPC service which provides methods intended for use by the CLI.

UDENG-6492

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 92.59259% with 6 lines in your changes missing coverage. Please review.

Project coverage is 85.50%. Comparing base (59be8dd) to head (62ffae0).

Files with missing lines	Patch %	Lines
internal/services/user/user.go	92.95%	5 Missing ⚠️
internal/services/permissions.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #855      +/-   ##
==========================================
- Coverage   85.50%   85.50%   -0.01%     
==========================================
  Files          82       82              
  Lines        5707     5690      -17     
  Branches      109      109              
==========================================
- Hits         4880     4865      -15     
+ Misses        772      770       -2     
  Partials       55       55              

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[denisonbarbosa]

Some suggestions that I think will make the changes better (I didn't add the same comment on every single crate of the module, but some apply to all three)

[adombeck]

Converting to draft until I fixed the tests

[denisonbarbosa]

Looks good to me. Nice work! Once @3v1n0 is also happy, feel free to merge.

[shiv-tyagi]

Thanks @adombeck for the awesome work.

[shiv-tyagi]

Can we get this merged soon? :)
I want to finish #782 and get it merged.

[shiv-tyagi]

Can we get this merged soon? :)

Any update @adombeck?

[adombeck]

@shiv-tyagi Sorry, we had other priorities the last two weeks. I hope we will get this merged next week!

[shiv-tyagi]

@shiv-tyagi Sorry, we had other priorities the last two weeks. I hope we will get this merged next week!

No worries. Looking forward :-)

[Copilot]

Pull Request Overview

This PR migrates CLI-specific gRPC methods from the NSS service into a dedicated UserService. The key changes include renaming and refactoring of service packages and method calls, removal of the old NSS service implementation, and updates to gRPC proto definitions and client registrations.

Reviewed Changes

Copilot reviewed 36 out of 46 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
internal/services/user/permissions.go	Renamed package from "nss" to "user" to reflect the new service context.
internal/services/permissions.go	Updated global access check to use userService instead of nssService.
internal/services/nss/nss.go	Removed the entire NSS service implementation that is no longer needed.
internal/services/manager_test.go	Updated tests to work with the new UserService client instead of the deprecated NSS client.
internal/services/manager.go	Replaced references to nssService with userService, including gRPC registration changes.
internal/proto/authd/authd_grpc.pb.go	Updated gRPC service definitions and client implementations from NSS to UserService.
internal/proto/authd/authd.proto	Removed the NSS service definitions and added UserService definitions with updated message types.

Files not reviewed (10)

• internal/services/nss/testdata/golden/TestGetGroupEntries/Return_all_groups: Language not supported
• internal/services/nss/testdata/golden/TestGetGroupEntries/Return_no_groups: Language not supported
• internal/services/nss/testdata/golden/TestGetShadowByName/Return_existing_user: Language not supported
• internal/services/nss/testdata/golden/TestGetShadowEntries/Return_all_users: Language not supported
• internal/services/nss/testdata/golden/TestGetShadowEntries/Return_no_users: Language not supported
• internal/services/testdata/TestRegisterGRPCServices/golden: Language not supported
• internal/services/testdata/golden/TestRegisterGRPCServices: Language not supported
• internal/services/user/testdata/golden/TestGetGroupByID/Return_existing_group: Language not supported
• internal/services/user/testdata/golden/TestGetGroupByName/Return_existing_group: Language not supported
• internal/services/user/testdata/golden/TestGetUserByID/Return_existing_user: Language not supported

[adombeck]

I rebased on main and resolved the conflicts

[adombeck]

@3v1n0 anything still missing for your approval? Do you want to take another look?