feat(obs): golden-signal metrics on /metrics + Prometheus scrape + Grafana dashboard (S-16c, refs #124)
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Wire OTel metrics into the four remaining .NET services (acl, domain, event-subscriber,
projection-api) exactly as the BFF: ASP.NET Core + HttpClient instrumentation + the built-in
System.Runtime meter, exposed at /metrics via the Prometheus AspNetCore exporter (ADR-0024).
Prometheus scrapes one job per service; Grafana ships a pre-built 'Request path — golden
signals' dashboard (traffic/errors/latency/saturation). A verify-metrics CI step proves the
endpoints are scraped end to end.
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2026-07-24 10:06:34 +02:00
parent 965782dd95
commit 4ac2c3ff6c
19 changed files with 375 additions and 10 deletions
+2
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@@ -170,6 +170,8 @@ jobs:
run: make verify-bff
- name: Distributed traces reach Tempo (one connected trace across services)
run: TRACING_TIMEOUT=120 make verify-tracing
- name: Golden-signal metrics scraped by Prometheus (/metrics on every service)
run: METRICS_TIMEOUT=120 make verify-metrics
- name: Self-service e2e (Playwright, login → submit → success)
run: make verify-e2e
# Log dump must precede teardown (which removes the containers).