services:
  prometheus:
    image: prom/prometheus:latest
    container_name: prometheus
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
    ports:
      - "9090:9090"
    networks:
      - observability

  grafana:
    image: grafana/grafana:latest
    container_name: grafana
    ports:
      - "3000:3000"
    volumes:
      - grafana-data:/var/lib/grafana
    environment:
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=admin
    networks:
      - observability
    depends_on:
      - loki

  loki:
    image: grafana/loki:2.8.2
    container_name: loki
    ports:
      - "3100:3100"
    command: -config.file=/etc/loki/local-config.yaml
    volumes:
      - ./loki-config.yaml:/etc/loki/local-config.yaml
      - /opt/loki/wal:/wal
      - /opt/loki/chunks:/loki/chunks
      - /opt/loki/index:/loki/index
    networks:
      - observability

  promtail:
    image: grafana/promtail:2.8.2
    container_name: promtail
    volumes:
      - ./promtail-config.yaml:/etc/promtail/config.yaml
      - /var/lib/docker/containers:/var/lib/docker/containers:ro
      - /var/log:/var/log:ro
    command:
      - -config.file=/etc/promtail/config.yaml
    networks:
      - observability

volumes:
  grafana-data:

networks:
  observability:
    driver: bridge