refactor(spider-core)!: Unify external resource group credentials (fixes #468).

[sitaowang1998]

Description

Defines external resource group credentials in core to be shared by components.

Changes

• Move ExternalResourceGroupCredentials from spider-storage to spider-core.
• Update SpiderClient::add_resource_group to accept the shared credentials type.
• Transport resource group credentials as a nested protobuf message.
• Add conversions between the core and protobuf credential types.
• Update storage and end-to-end call sites.
• Add tests.

Breaking changes

The gRPC protocol changes as AddResourceGroupRequest now uses ExternalResourceGroupCredentials.

Checklist

• The PR satisfies the contribution guidelines.
• This is a breaking change and that has been indicated in the PR title, OR this isn't a
  breaking change.
• Necessary docs have been updated, OR no docs need to be updated.

Validation performed

• GitHub workflows pass.

Summary by CodeRabbit

• New Features

  • Added a shared credentials model for external resource groups.
  • Resource-group registration now accepts credentials as a single structured value.
  • Credentials can be loaded from environment variables, with passwords handled more securely.
  • Updated service and protocol handling to consistently transmit external IDs and passwords.

• Bug Fixes

  • Missing resource-group credentials now produce a clear invalid-argument error.

• Tests

  • Added coverage confirming credentials remain intact through protocol encoding and decoding.

[coderabbitai]

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📥 Commits

Reviewing files that changed from the base of the PR and between 4ad532c and f805c46.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (13)

• components/spider-client/src/grpc/resource_group.rs
• components/spider-core/Cargo.toml
• components/spider-core/src/types/resource_group.rs
• components/spider-proto-rust/src/resource_group.rs
• components/spider-storage/src/db/mariadb.rs
• components/spider-storage/src/db/mod.rs
• components/spider-storage/src/grpc.rs
• components/spider-storage/src/state/service.rs
• components/spider-storage/src/state/test_utils.rs
• components/spider-storage/tests/mariadb_infra.rs
• components/spider-storage/tests/mariadb_test.rs
• components/spider-storage/tests/runtime_recovery_test.rs
• tests/huntsman/e2e/src/test_driver.rs

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Walkthrough

The change adds a shared, secret-backed ExternalResourceGroupCredentials type. Protobuf requests, storage handlers, client APIs, database code, and tests now pass this type instead of separate resource group IDs and passwords.

Changes

Resource group credentials consolidation

Layer / File(s)	Summary
Shared credentials contract components/spider-core/src/types/*, components/spider-proto/storage/storage.proto, components/spider-proto-rust/src/*	Adds secret-backed credentials with constructors, accessors, environment loading, nested protobuf fields, conversions, and round-trip coverage.
Request unpacking components/spider-proto-rust/src/unpack/storage.rs	Converts nested request credentials into ExternalResourceGroupCredentials and returns InvalidArgument when add-resource-group credentials are missing.
Storage integration components/spider-storage/src/db/*, components/spider-storage/src/grpc.rs, components/spider-storage/src/state/*, components/spider-storage/tests/*, tests/huntsman/e2e/src/test_driver.rs	Removes the storage-local credentials definition and updates storage logic, test utilities, and tests to use constructors and accessors.
Client API and callers components/spider-client/src/*	Changes add_resource_group to accept one credentials value and updates the compile-time helper and gRPC conversion path.

Estimated code review effort: 3 (Moderate) | ~25 minutes

Merge Risk: ⚪ Minimal · up to f805c

The credential consolidation consistently carries resource-group IDs and passwords through the client, gRPC, and storage paths without an identified regression.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 63.89% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 36 functions across 18 files. (1 skipped:…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the main change: unifying external resource group credentials across components. It is concise and specific.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 63.89% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 36 functions across 18 files. (1 skipped: 1 unsupported.)

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Actionable comments posted: 1

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Inline comments:
In `@components/spider-storage/src/db/protocol.rs`:
- Line 11: Add a public re-export of ExternalResourceGroupCredentials in the
spider_storage::db module so downstream users can continue importing it from
that path; keep protocol.rs’s internal usage intact and restore the existing API
boundary rather than leaving only a private import.

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Configuration used: Repository UI

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Run ID: 90c866b8-aad2-4ef9-b9cc-32fc1af86633

📥 Commits

Reviewing files that changed from the base of the PR and between d8f7ce8 and 4ad532c.

⛔ Files ignored due to path filters (1)

• components/spider-proto-rust/src/generated/storage.rs is excluded by !**/generated/**

📒 Files selected for processing (19)

• components/spider-client/src/client.rs
• components/spider-client/src/grpc/resource_group.rs
• components/spider-core/src/types/mod.rs
• components/spider-core/src/types/resource_group.rs
• components/spider-proto-rust/src/lib.rs
• components/spider-proto-rust/src/resource_group.rs
• components/spider-proto-rust/src/unpack/storage.rs
• components/spider-proto/storage/storage.proto
• components/spider-storage/src/db/mariadb.rs
• components/spider-storage/src/db/mod.rs
• components/spider-storage/src/db/protocol.rs
• components/spider-storage/src/grpc.rs
• components/spider-storage/src/state/service.rs
• components/spider-storage/src/state/test_utils.rs
• components/spider-storage/src/task_instance_pool.rs
• components/spider-storage/tests/mariadb_infra.rs
• components/spider-storage/tests/mariadb_test.rs
• components/spider-storage/tests/runtime_recovery_test.rs
• tests/huntsman/e2e/src/test_driver.rs

💤 Files with no reviewable changes (1)

• components/spider-storage/src/db/mod.rs

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[sitaowang1998]

A high level question: Do we need to make password a secrecy::Secret?

[LinZhihao-723]

A high level question: Do we need to make password a secrecy::Secret?

I think it's worth doing so, as long as it can be easily supported to construct/reconstruct across the gRPC layer. Can you check this first?

[sitaowang1998]

A high level question: Do we need to make password a secrecy::Secret?

I think it's worth doing so, as long as it can be easily supported to construct/reconstruct across the gRPC layer. Can you check this first?

My idea is to just use secrecy::SecretSlice<u8> for the password field of the ExternalResourceGroupCredential struct, which can easily support conversion to and from a normal Vec<u8>, and feed into gRPC layer. However, in protobuf buffer the password will still be stored the password in plain text. Given that the buffer is short-lived, and that gRPC transmission is encrypted, I would say it is safe to use secrecy just for the credential struct.

[LinZhihao-723]

SecretSlice

Do you think it makes more sense to use SecretString instead? It seems to be common to assume the password/API-secret is a string. For example, aws credentials are secret strings.