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devops(observability): add Loki + Promtail for centralised container log aggregation #586

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marcel merged 2 commits from feat/issue-574-loki-promtail into main 2026-05-15 02:58:20 +02:00
Conversation 8 Commits 2 Files Changed 7 +146 -5

2 Commits

Author SHA1 Message Date
Marcel
c1406a32f1 devops(observability): fix C4 diagram, security comment, and add Loki compactor block
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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-05-15 02:25:34 +02:00
Marcel
22e1b25398 devops(observability): add Loki + Promtail for centralised container log aggregation
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CI / Unit & Component Tests (pull_request) Successful in 3m21s
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CI / OCR Service Tests (pull_request) Successful in 16s
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CI / Backend Unit Tests (pull_request) Successful in 4m31s
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CI / fail2ban Regex (pull_request) Successful in 38s
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CI / Compose Bucket Idempotency (pull_request) Successful in 57s
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- Add obs-loki (grafana/loki:3.4.2) to docker-compose.observability.yml
  with healthcheck (wget /ready), expose-only port 3100, named volume loki_data
- Add obs-promtail (grafana/promtail:3.4.2) bridging archiv-net + obs-net,
  depends_on loki service_healthy, docker.sock:ro, promtail_positions volume
  for restart-safe position tracking
- Create infra/observability/loki/loki-config.yml: single-node TSDB schema v13,
  30-day retention, auth disabled (obs-net only), telemetry off
- Create infra/observability/promtail/promtail-config.yml: Docker SD scrape,
  container_name / compose_service / compose_project / logstream labels
- Update docs/DEPLOYMENT.md §4 with service table and Loki quick-check commands

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-05-15 02:18:22 +02:00