pdf-quiz-generator/promtail/promtail-config.yml
Daniel d0518d0737 Add comprehensive structured logging with Loki + Grafana
Backend logging:
- Centralized JSON logging config with LOG_LEVEL env var
- Request logging middleware: user, method, path, status, duration, request_id
- Fixed all 9 silent except:pass blocks to log warnings with tracebacks
- Celery workers use same structured JSON format

Infrastructure:
- Loki 3.3.2 for log storage (30-day retention)
- Promtail 3.3.2 for Docker container log shipping
- Grafana 10.3.1 with auto-provisioned Loki datasource
- Grafana on port 3002 (admin/pedshub_grafana)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 02:53:54 +02:00

48 lines
1.4 KiB
YAML

server:
http_listen_port: 9080
grpc_listen_port: 0
positions:
filename: /positions/positions.yaml
clients:
- url: http://loki:3100/loki/api/v1/push
scrape_configs:
- job_name: docker
docker_sd_configs:
- host: unix:///var/run/docker.sock
refresh_interval: 5s
relabel_configs:
# Keep only quiz-* containers
- source_labels: ['__meta_docker_container_name']
regex: '.*quiz.*'
action: keep
# Extract container name as label
- source_labels: ['__meta_docker_container_name']
regex: '/?(.*)'
target_label: container
# Extract compose service name
- source_labels: ['__meta_docker_container_label_com_docker_compose_service']
target_label: service
pipeline_stages:
# Docker JSON log wrapper
- docker: {}
# Try to parse structured JSON logs from backend/celery
- match:
selector: '{service=~"backend|celery"}'
stages:
- json:
expressions:
level: levelname
logger: name
msg: message
request_id: request_id
method: method
path: path
status: status
duration_ms: duration_ms
user: user
- labels:
level:
logger: