# Monitoring stack: Prometheus + Grafana + Loki + Promtail
# Garage cluster (vps01, bigbox, vps02) metrics via WG admin API :3903
# Logs: docker logs of garage containers via promtail (docker driver)

services:
  prometheus:
    image: prom/prometheus:v2.53.0
    container_name: prometheus
    restart: unless-stopped
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml:ro
      - ./prometheus-data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.retention.time=30d'
      - '--storage.tsdb.path=/prometheus'
    ports:
      - "9090:9090"
    networks:
      - monitoring

  grafana:
    image: grafana/grafana:11.1.0
    container_name: grafana
    restart: unless-stopped
    environment:
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASSWORD:-admin}
      - GF_USERS_ALLOW_SIGN_UP=false
      - GF_SERVER_ROOT_URL=http://localhost:3001
    volumes:
      - ./grafana-data:/var/lib/grafana
      - ./grafana/provisioning:/etc/grafana/provisioning:ro
      - ./grafana/dashboards:/var/lib/grafana/dashboards:ro
    ports:
      - "3001:3000"
    depends_on:
      - prometheus
    networks:
      - monitoring

  loki:
    image: grafana/loki:3.1.0
    container_name: loki
    restart: unless-stopped
    command: -config.file=/etc/loki/local-config.yaml
    volumes:
      - ./loki-config.yaml:/etc/loki/local-config.yaml:ro
      - ./loki-data:/loki
    ports:
      - "3100:3100"
    networks:
      - monitoring

  promtail:
    image: grafana/promtail:3.1.0
    container_name: promtail
    restart: unless-stopped
    volumes:
      - ./promtail-config.yaml:/etc/promtail/config.yaml:ro
      - /var/run/docker.sock:/var/run/docker.sock
    command: -config.file=/etc/promtail/config.yaml
    depends_on:
      - loki
    networks:
      - monitoring

networks:
  monitoring:
    driver: bridge