wu-sheng opened a new pull request, #13772:
URL: https://github.com/apache/skywalking/pull/13772
### Support Envoy AI Gateway observability (SWIP-10)
- [ ] If this is non-trivial feature, paste the links/URLs to the design doc.
- SWIP-10: `docs/en/swip/SWIP-10/SWIP.md`
- [ ] Update the documentation to include this new feature.
- `docs/en/setup/backend/backend-envoy-ai-gateway-monitoring.md`
- [ ] Tests(including UT, IT, E2E) are added to verify the new feature.
- `test/e2e-v2/cases/envoy-ai-gateway/` (docker-compose with
ai-gateway-cli + Ollama)
- [ ] Update the [`CHANGES`
log](https://github.com/apache/skywalking/blob/master/docs/en/changes/changes.md).
- [ ] If this pull request closes/resolves/fixes an existing issue, replace
the issue number. Closes #xxx.
## Summary
Add Envoy AI Gateway as a new monitored layer (`ENVOY_AI_GATEWAY`) in
SkyWalking, receiving
GenAI metrics and access logs via OTLP push from the AI Gateway.
**Changes:**
- New layer `ENVOY_AI_GATEWAY(46, true)` in `Layer.java`
- MAL rules: 2 rule files (service + instance) with 38 metrics total —
aggregates, per-provider
and per-model breakdowns including token usage, latency, TTFT, TPOT
- LAL rules: access log sampling (errors, upstream failures, high token cost)
- UI dashboards: root (with doc link), service
(Overview/Providers/Models/Log/Instances tabs),
instance (Overview/Providers/Models/Log tabs)
- OTel receiver fixes:
- Convert data point attribute dots to underscores (consistent with
resource attributes)
- Change `LABEL_MAPPINGS` to fallback-only — `service.name` preserved as
`service_name` tag
- Remove unused `service.name → job_name` mapping (MAL checker: 1268/1268
rules pass)
- OTLP log handler: prefer `service.instance.id` (OTel spec) with fallback
to `service.instance`
- `UITemplateInitializer`: register `ENVOY_AI_GATEWAY` template folder
- `SampleFamily`: add `toString()` and `debugDump()` for MAL debugging
- Documentation: setup guide, OTel receiver label conversion, LAL OTLP
mapping, marketplace GenAI
- E2e test: docker-compose with `ai-gateway-cli` + Ollama (qwen2.5:0.5b)
## Screenshots
### Root Dashboard
### Service Dashboard - Overview
### Service Dashboard - Providers/Models
### Instance Dashboard
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