[charludo]

Follow-up to #2638

[coderabbitai]

No actionable comments were generated in the recent review.

Walkthrough

The coordinator checks minimum API version pins on gRPC manifest operations. HTTP version-gate errors use the shared userapi.ErrAPIVersionTooOld sentinel, which the HTTP error mapper classifies as ErrorCodeAPIVersionTooOld.

Changes: Manifest API Version Enforcement

Layer / File(s)	Summary
gRPC manifest version checks coordinator/internal/userapi/userapi.go, coordinator/internal/userapi/userapi_test.go	The user API adds ErrAPIVersionTooOld and checks minimum API version pins in SetManifest and GetManifests. It rejects submitted manifests with a non-empty minimum API version and rejects JSON null manifests. Tests cover rejected requests and recovery behavior. Recovery does not enforce the pin.
HTTP error integration coordinator/internal/httpapi/versiongate.go, coordinator/internal/httpapi/error.go	The HTTP version gate wraps userapi.ErrAPIVersionTooOld. The error mapper maps that sentinel to ErrorCodeAPIVersionTooOld.

Possibly related PRs

• edgelesssys/contrast#2628: Adds the HTTP version gate and manifest minimum API version that this change extends to gRPC methods.
• edgelesssys/contrast#2625: Adds the HTTP error mapper and sentinel-based errors used by this change.
• edgelesssys/contrast#2784: Makes CLI verification use HTTP when a minimum API version is pinned, relevant to the gRPC GetManifests restriction.

Suggested reviewers: burgerdev

Merge Risk: Minimal · up to 1fd44

gRPC manifest operations reject pinned versions as intended. No merge-blocking issue remains identified.

Pre-merge checks: 3 · 1

Failed checks: 1 inconclusive

Check name	Status	Explanation	Resolution
Description check		The description identifies a follow-up but does not describe the changes.	Describe the enforcement of MinimumAPIVersion on the gRPC API.

Passed checks: 3 passed

Check name	Status	Explanation
Title check		The title identifies the main change: enforcing MinimumAPIVersion on the gRPC API.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Finishing Touches

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_{A rabbit checks the version gate,
A pinned manifest must now wait.
The shared error marks the cause,
Tests check the paths and rules in force.
Then carrots crunch; the checks are done.}

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• coordinator/internal/userapi/userapi.go

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Inline comments:
Review comments at @coordinator/internal/userapi/userapi.go:
- Around line 99-102: Update SetManifest so both initial and update writes of a
non-empty MinimumAPIVersion require a usable versioned manifest-management path
before accepting the pin; do not reject pins in all gRPC SetManifest calls, and
preserve the documented MinimumAPIVersion contract.

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Reviewing files that changed from the base of the PR and between 1b3c89b and a143499.

Files selected for processing: 4

• coordinator/internal/httpapi/error.go
• coordinator/internal/httpapi/versiongate.go
• coordinator/internal/userapi/userapi.go
• coordinator/internal/userapi/userapi_test.go

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[charludo]

@sespiros meh, the Rabbit might have had a point. Added a second commit that gates against setting the minimum version via gRPC.

[coderabbitai]

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[sespiros]

LGTM, thanks! Just inline AI nits.