Commit Graph

3 Commits

Author SHA1 Message Date
julian be48da9baa Implement Phase 1 tasks 1.9-1.11 (observability + integration test + Dockerfile/CI)
src/observability/metrics.ts — full prom-client implementation. All 10
Phase 1 metrics registered (processor_consumer_reads_total,
_records_total, _lag, _decode_errors_total, processor_position_writes_total
{status}, _write_duration_seconds, processor_acks_total,
processor_device_state_{size,evictions_total}) plus nodejs_* defaults.
node:http server with /metrics, /healthz, /readyz. /readyz checks
redis.status === 'ready' AND a 5s-cached SELECT 1 Postgres probe.
processor_consumer_lag sampled every 10s via XINFO GROUPS, falling back
to a no-op when the consumer group hasn't been created yet.

src/main.ts — replaces the trace-logging shim with createMetrics() and
startMetricsServer(); shutdown closes the metrics server before
redis.quit() and pool.end().

test/metrics.test.ts — 22 unit tests: exposition format, every metric
type behaviour, all four HTTP endpoint paths including /readyz 503 cases.

test/pipeline.integration.test.ts — testcontainers Redis 7 +
TimescaleDB latest-pg16. Four scenarios: happy path with bigint+Buffer
attribute round-trip, idempotency on (device_id, ts), malformed payload
stays in PEL (decode_errors_total increments), writer failure → retry
(weaker variant per spec: stop Postgres before publish, restart, verify
row appears). Skip-on-no-Docker pattern verified — exits 0 without
Docker.

Dockerfile — multi-stage matching tcp-ingestion. EXPOSE 9090 only,
HEALTHCHECK on /readyz, image-source label points at processor repo.

.gitea/workflows/build.yml — single-job workflow mirroring
tcp-ingestion. Path filters cover src/, test/, build config, Dockerfile.
Portainer webhook step uncommented for :main auto-deploy.

compose.dev.yaml — local-build variant with Redis + TimescaleDB +
processor-dev for verifying Dockerfile changes without the registry
round-trip.

README.md — fleshed out from stub: quick-start, Docker build, deployment
note, env vars, tests (unit vs. integration), CI behavior. Flags the
deploy-side change needed: deploy/compose.yaml needs a TimescaleDB
service and a processor service entry added.

Verification: typecheck, lint clean; 134 unit tests passing across 8
files (+22 from this batch). pnpm test:integration runs cleanly under
the no-Docker skip pattern.

Phase 1 is now complete. Service is pilot-ready.
2026-04-30 22:01:55 +02:00
julian c314ba0902 Add planning documents for Phase 1 (throughput pipeline) and stub Phases 2-4
ROADMAP.md establishes status legend, architectural anchors pointing at the
wiki, and seven non-negotiable design rules — most importantly the
core/domain boundary that protects Phase 1 from Phase 2 churn, the
schema-authority split (positions hypertable owned here; everything else
owned by Directus), and idempotent-writes via (device_id, ts) ON CONFLICT.

Phase 1 (throughput pipeline) is fully detailed across 11 task files:
scaffold, core types + sentinel decoder, config + logging, Postgres
hypertable, Redis Stream consumer, per-device LRU state, batched writer,
main wiring, observability, integration test, Dockerfile + Gitea CI.
Observability is in Phase 1 (not deferred) — lesson learned from
tcp-ingestion task 1.10.

Phases 2-4 are stub READMEs. Phase 2 (domain logic) blocks on Directus
schema decisions and lists those open questions explicitly. Phase 3
(production hardening) and Phase 4 (future) sketch the task shape.
2026-04-30 21:16:59 +02:00
julian 1a4202f4d1 first commit 2026-04-30 20:48:33 +02:00