julien
a893f8e06b
## Summary Jaeger v1's web UI has no theme selector — it ships light-only. v2 (the OTel-Collector-based rewrite, image `jaegertracing/jaeger`, distinct from v1's `jaegertracing/all-in-one`) ships a **Light / Dark / Auto** switcher in the UI nav. v2 is also the actively-developed line; v1 is on the way out within ~6-12 months. Migration is mechanical: - Image: `jaegertracing/all-in-one:1.76.0` → `jaegertracing/jaeger:2.17.0`. - Drop `COLLECTOR_OTLP_ENABLED: 'true'` env — v2 enables OTLP receivers by default. - UI port (`16686`) and OTLP ports (`4317` / `4318`) are unchanged, so the collector → `jaeger:4317` forwarding pipeline keeps working without touching `otel-collector.yaml`. ## Test plan - [ ] After merge: `docker compose -f infra/local/dev.compose.yml --profile observability up -d --force-recreate jaeger` → container stays healthy. - [ ] http://localhost:16686 loads the v2 UI; nav shows the Light/Dark/Auto switcher. - [ ] Send a synthetic OTLP trace to `localhost:4317` (e.g., via grpcurl or once the BFF is wired in B) → it appears in the Jaeger UI. - [ ] OTel Collector logs no longer warn abou --------- Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr> Reviewed-on: #64