[management,proxy] Add agentgateway integration by danehans · Pull Request #7274 · netbirdio/netbird

danehans · 2026-08-20T23:56:40Z

Describe your changes

Add agentgateway as an Agent Network provider with trusted NetBird identity headers and OpenAI plus Anthropic request routing. The identity injector may replace its own reserved headers, while other middleware remains unable to
mutate them.

Issue ticket number and link

Part of #6970

Stack

Checklist

Is it a bug fix
Is a typo/documentation fix
Is a feature enhancement
It is a refactor
Created tests that fail without the change (if possible)
I ran and tested this change locally — I did not rely on CI to find out whether it works
This PR has a single purpose (not a fix + refactor + feature in one)
This change is a trivial fix, OR it links an issue the NetBird team agreed on beforehand. Changes to the public API, gRPC protocols, functionality behavior, CLI / service flags, or new features always need that agreement first. See CONTRIBUTING.md.

By submitting this pull request, you confirm that you have read and agree to the terms of the Contributor License Agreement.

Documentation

Select exactly one:

I added/updated documentation for this change
Documentation is not needed for this change (the integration example is tracked in Track NetBird Agent Network integration agentgateway/agentgateway#2757)

Docs PR URL (required if "docs added" is checked)

Paste the PR link from https://github.com/netbirdio/docs here:

https://github.com/netbirdio/docs/pull/__

Summary by CodeRabbit

New Features
- Added multi-vendor gateway routing for OpenAI and Anthropic request formats.
- Added automatic NetBird user and group identity headers for gateway requests.
- Added policy-scoped model access, regional discovery endpoints, and pricing metadata.
- Added exact-model discovery that excludes wildcard model patterns.
Bug Fixes
- Improved model and route matching while preserving existing configurations.
- Prevented untrusted middleware from modifying reserved identity headers.

CLAassistant · 2026-08-20T23:56:47Z

All committers have signed the CLA.

coderabbitai · 2026-08-20T23:56:48Z

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 930a253 and 8237588.

📒 Files selected for processing (13)

management/internals/modules/agentnetwork/catalog/catalog.go
management/internals/modules/agentnetwork/catalog/catalog_test.go
management/internals/modules/agentnetwork/modeldiscovery/discovery.go
management/internals/modules/agentnetwork/modeldiscovery/discovery_test.go
management/internals/modules/agentnetwork/synthesizer.go
management/internals/modules/agentnetwork/synthesizer_test.go
proxy/internal/middleware/builtin/llm_router/factory.go
proxy/internal/middleware/builtin/llm_router/middleware.go
proxy/internal/middleware/builtin/llm_router/middleware_test.go
proxy/internal/middleware/chain.go
proxy/internal/middleware/chain_test.go
proxy/internal/middleware/headerpolicy.go
proxy/internal/middleware/headerpolicy_test.go

🚧 Files skipped from review as they are similar to previous changes (11)

management/internals/modules/agentnetwork/modeldiscovery/discovery.go
proxy/internal/middleware/headerpolicy_test.go
proxy/internal/middleware/builtin/llm_router/factory.go
management/internals/modules/agentnetwork/catalog/catalog_test.go
proxy/internal/middleware/headerpolicy.go
management/internals/modules/agentnetwork/modeldiscovery/discovery_test.go
proxy/internal/middleware/chain_test.go
proxy/internal/middleware/builtin/llm_router/middleware_test.go
management/internals/modules/agentnetwork/catalog/catalog.go
proxy/internal/middleware/chain.go
management/internals/modules/agentnetwork/synthesizer.go

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📝 Walkthrough

Walkthrough

The change adds the agentgateway catalog provider with OpenAI and Anthropic routing surfaces. Route synthesis and LLM routing support multiple vendors, exact model discovery, and protected NetBird identity headers.

Changes

Agentgateway routing, discovery, and identity

Layer / File(s)	Summary
Catalog metadata and route synthesis `management/internals/modules/agentnetwork/catalog/catalog.go`, `management/internals/modules/agentnetwork/catalog/catalog_test.go`, `management/internals/modules/agentnetwork/synthesizer.go`, `management/internals/modules/agentnetwork/synthesizer_test.go`	The catalog defines `agentgateway` routing, pricing, discovery, and identity metadata. Synthesized routes include vendor surfaces.
Exact model discovery `management/internals/modules/agentnetwork/modeldiscovery/discovery.go`, `management/internals/modules/agentnetwork/modeldiscovery/discovery_test.go`	Exact-only discovery excludes wildcard model IDs and preserves pricing metadata for discovered models.
Multi-vendor model routing `proxy/internal/middleware/builtin/llm_router/factory.go`, `proxy/internal/middleware/builtin/llm_router/middleware.go`, `proxy/internal/middleware/builtin/llm_router/middleware_test.go`	`ProviderRoute` supports singular and plural vendor fields. Routing matches either field and preserves vendor-specific route disambiguation.
Trusted identity header protection `proxy/internal/middleware/headerpolicy.go`, `proxy/internal/middleware/chain.go`, `proxy/internal/middleware/chain_test.go`, `proxy/internal/middleware/headerpolicy_test.go`	Header filtering identifies trusted identity middleware and permits it to set NetBird user and group headers. Other middleware cannot replace those headers.

Estimated code review effort: 4 (Complex) | ~45 minutes

Merge Risk: ⚪ Minimal · up to 82375

This change adds the agentgateway integration without any supplied actionable merge-blocking risk; it is merge-ready after normal checks and review.

Sequence Diagram(s)

sequenceDiagram
  participant Client
  participant LLMRouter
  participant ModelDiscovery
  participant agentgateway
  Client->>LLMRouter: Sends a vendor and model request
  LLMRouter->>ModelDiscovery: Requests the model list when discovery is needed
  ModelDiscovery->>agentgateway: Fetches /v1/models
  agentgateway-->>ModelDiscovery: Returns exact models and pricing metadata
  ModelDiscovery-->>LLMRouter: Returns discovered models
  LLMRouter->>agentgateway: Forwards the matching request

Suggested reviewers: mlsmaycon

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 37.93% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 29 functions across 13 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the management and proxy changes that add agentgateway integration.
Description check	✅ Passed	The description covers the changes, links issue `#6970`, identifies the feature enhancement, records testing and documentation decisions, and includes the required checklist.
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.

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Actionable comments posted: 1

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Inline comments:
In `@proxy/internal/middleware/builtin/llm_router/middleware.go`:
- Around line 255-257: Update the comment near matchingVendor to describe routes
without any vendor declaration, rather than routes lacking a singular vendor
field; explicitly include routes declaring vendors through Vendors.

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ℹ️ Review info

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Configuration used: Path: .coderabbit.yaml

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Run ID: d05f3214-12e7-4563-b942-df4bdbbab54a

📥 Commits

Reviewing files that changed from the base of the PR and between 4a6efbb and de8635e.

📒 Files selected for processing (10)

management/internals/modules/agentnetwork/catalog/catalog.go
management/internals/modules/agentnetwork/catalog/catalog_test.go
management/internals/modules/agentnetwork/synthesizer.go
management/internals/modules/agentnetwork/synthesizer_test.go
proxy/internal/middleware/builtin/llm_router/factory.go
proxy/internal/middleware/builtin/llm_router/middleware.go
proxy/internal/middleware/builtin/llm_router/middleware_test.go
proxy/internal/middleware/chain.go
proxy/internal/middleware/chain_test.go
proxy/internal/middleware/headerpolicy.go

Included review availability: Your plan provides up to 10 included reviews per hour; 9 remain after this review.

codecov · 2026-08-25T14:07:32Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@930a253). Learn more about missing BASE report.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7274   +/-   ##
=======================================
  Coverage        ?   35.67%           
=======================================
  Files           ?     1123           
  Lines           ?   135706           
  Branches        ?        0           
=======================================
  Hits            ?    48411           
  Misses          ?    81502           
  Partials        ?     5793

Flag	Coverage Δ
client	`38.46% <ø> (?)`
integration	`39.24% <ø> (?)`
management	`29.71% <100.00%> (?)`
proxy	`53.02% <100.00%> (?)`
relay	`37.63% <ø> (?)`
signal	`22.85% <ø> (?)`
unit	`35.67% <100.00%> (?)`

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danehans · 2026-08-25T16:23:11Z

docs: netbirdio/docs#949

Allow Agent Network providers to target an operator-supplied agentgateway proxy while stamping trusted NetBird identity headers. Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

Permit only the built-in identity injector to replace the two reserved agentgateway attribution headers while keeping them blocked for every other middleware. Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

Let one Agent Network route declare multiple parser surfaces while preserving the existing singular vendor wire field. Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

jnfrati · 2026-08-26T13:17:00Z

Hey @danehans the PR is looking really good, thanks for the contribution!
A few days ago we merged this one #7246 and would be great if you could add the discovery endpoint to the agentgateway provider 💪

Use agentgateway's OpenAI-compatible models endpoint and omit wildcard patterns until NetBird can authorize and price them consistently. Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

danehans · 2026-08-26T16:57:44Z

@jnfrati thanks for the review. I added discovery for the agentgateway provider. I’m keeping wildcard model-pattern authorization and private-upstream discovery out of this PR because it requires broader routing and security design changes (xref).

coderabbitai · 2026-08-31T18:13:25Z

Note

GitHub couldn't provide a complete incremental comparison for this pull request, so CodeRabbit is performing a full review instead. This review may take a little longer.

sonarqubecloud · 2026-08-31T18:14:05Z

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

## Summary Add Kubernetes and standalone Docker Compose examples for placing agentgateway behind NetBird Agent Network. Both configure a private AI listener with strict virtual-key authentication, trusted NetBird identity attribution, and OpenAI and Anthropic routing. The Compose deployment uses agentgateway for public NetBird management TLS and routing, and static certificates from a generated private demo CA. Native standalone ACME lifecycle support is tracked in #3293. The NetBird server and proxy remain temporarily pinned to the development images validated for netbirdio/netbird#6970. The documentation states when to replace them with official releases. Agentgateway is pinned to v1.5.0. ## Validation - ShellCheck and Bash syntax validation on all example scripts - agentgateway v1.5.0 schema validation for both standalone configurations - Local Docker Compose bootstrap through NetBird management and the generated Agent Network endpoint - Static management and wildcard TLS, management gRPC, relay WebSocket, NetBird DNS, and private listener checks - Kubernetes server-side dry-run against Gateway API and agentgateway v1.5.0 CRDs - Live GKE validation of management routing and OpenAI and Anthropic requests through NetBird Fixes #2757 Depends on netbirdio/netbird#7274. --------- Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

danehans mentioned this pull request Aug 21, 2026

examples: add NetBird Agent Network integration agentgateway/agentgateway#3111

Merged

danehans marked this pull request as ready for review August 21, 2026 16:12

coderabbitai Bot reviewed Aug 21, 2026

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Comment thread proxy/internal/middleware/builtin/llm_router/middleware.go Outdated

danehans mentioned this pull request Aug 24, 2026

Document agentgateway Agent Network integration netbirdio/docs#949

Merged

danehans added 4 commits August 25, 2026 09:25

[management] Add agentgateway provider catalog entry

abcad4c

Allow Agent Network providers to target an operator-supplied agentgateway proxy while stamping trusted NetBird identity headers. Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

[proxy] Allow trusted Agent Network identity headers

49126ce

Permit only the built-in identity injector to replace the two reserved agentgateway attribution headers while keeping them blocked for every other middleware. Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

[management,proxy] Add multi-vendor gateway routing

dcf1215

Let one Agent Network route declare multiple parser surfaces while preserving the existing singular vendor wire field. Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

[management] Update router test for model policies

c45e9a3

Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

danehans force-pushed the agentgateway-integration branch from de8635e to c45e9a3 Compare August 25, 2026 16:28

danehans and others added 2 commits August 25, 2026 09:30

[proxy] Cover reserved header policy

594864a

Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

Merge branch 'main' into agentgateway-integration

400fe62

danehans mentioned this pull request Aug 26, 2026

[agent-network] Support wildcard model authorization and pricing #7332

Open

[management] Add agentgateway model discovery

722a2ac

Use agentgateway's OpenAI-compatible models endpoint and omit wildcard patterns until NetBird can authorize and price them consistently. Signed-off-by: Daneyon Hansen <daneyon.hansen@solo.io>

danehans mentioned this pull request Aug 26, 2026

docs: add NetBird Agent Network integration guides agentgateway/website#939

Draft

3 tasks

jnfrati self-assigned this Aug 31, 2026

Merge branch 'main' into agentgateway-integration

8237588

danehans mentioned this pull request Aug 31, 2026

[agent-network] Import agentgateway model-catalog pricing #7372

Open

7 tasks

jnfrati approved these changes Sep 1, 2026

View reviewed changes

jnfrati merged commit 7a9582d into netbirdio:main Sep 1, 2026
58 of 59 checks passed

danehans mentioned this pull request Sep 2, 2026

Add ACME certificate lifecycle support for standalone deployments agentgateway/agentgateway#3293

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[management,proxy] Add agentgateway integration - #7274

[management,proxy] Add agentgateway integration#7274
jnfrati merged 8 commits into
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danehans:agentgateway-integration

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