julian
d4a6d8f713
Replaces the placeholder Metrics shim with a prom-client implementation in src/observability/metrics.ts: all 10 Phase 1 metrics from the wiki spec, plus nodejs_* defaults. Exposes /metrics, /healthz, /readyz over node:http on METRICS_PORT (9090); /readyz returns 503 when Redis status is not 'ready' or the TCP listener isn't bound. The Metrics interface in src/core/types.ts is unchanged — adapter call sites continue to use the same inc/observe shape. Only main.ts sees the extended type that adds serializeMetrics(). Side effects: - Dockerfile re-enables HEALTHCHECK pointing at /readyz, and EXPOSE 9090. - frame-ingested log downgraded back to debug now that teltonika_records_published_total is scrapeable. - 19 new unit tests covering exposition format, all metric types, and every HTTP endpoint path. Total now 98 passing. Note: deploy/compose.yaml still does not expose 9090 — separate decision about how Prometheus reaches the service (host port vs. internal scraper on the same Docker network).
32 lines
1.0 KiB
Docker
32 lines
1.0 KiB
Docker
# syntax=docker/dockerfile:1.7
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# ---- deps stage: install with cache-friendly pnpm fetch ----
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FROM node:22-alpine AS deps
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WORKDIR /app
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RUN corepack enable && corepack prepare pnpm@latest-9 --activate
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COPY package.json pnpm-lock.yaml ./
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RUN --mount=type=cache,id=pnpm-store,target=/root/.local/share/pnpm/store \
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pnpm fetch
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# ---- build stage: compile TypeScript ----
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FROM deps AS build
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COPY . .
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RUN --mount=type=cache,id=pnpm-store,target=/root/.local/share/pnpm/store \
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pnpm install --frozen-lockfile --offline
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RUN pnpm build
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RUN pnpm prune --prod
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# ---- runtime: slim, non-root ----
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FROM node:22-alpine AS runtime
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WORKDIR /app
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RUN addgroup -S app && adduser -S -G app app
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COPY --from=build --chown=app:app /app/node_modules ./node_modules
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COPY --from=build --chown=app:app /app/dist ./dist
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COPY --from=build --chown=app:app /app/package.json ./package.json
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USER app
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EXPOSE 5027
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EXPOSE 9090
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HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
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CMD wget -qO- http://localhost:9090/readyz || exit 1
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CMD ["node", "dist/main.js"]
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