# ============================================================
# 日志收集栈 Docker Compose 编排 (轻量级 Loki 方案)
# 
# 使用方式:
#   docker compose -f deploy/production/logging/docker-compose.logging.yml up -d
#
# 包含组件:
#   - Loki (日志聚合存储)
#   - Promtail (日志收集代理)
#   - 可选: Filebeat (替代 Promtail)
# ============================================================

services:
  # ==================== Loki (日志聚合) ====================
  loki:
    image: grafana/loki:2.9.6
    container_name: wm-loki
    restart: always
    command: -config.file=/etc/loki/loki-config.yml
    ports:
      - "127.0.0.1:3100:3100"
    volumes:
      - ./loki-config.yml:/etc/loki/loki-config.yml:ro
      - loki_data:/loki
    networks:
      - wm-network
      - logging
    deploy:
      resources:
        limits:
          cpus: '1.0'
          memory: 1G
        reservations:
          cpus: '0.25'
          memory: 256M
    logging:
      driver: json-file
      options:
        max-size: "30m"
        max-file: "3"
    healthcheck:
      test: ["CMD", "wget", "--spider", "-q", "http://localhost:3100/ready"]
      interval: 30s
      timeout: 10s
      retries: 3

  # ==================== Promtail (日志收集) ====================
  promtail:
    image: grafana/promtail:2.9.6
    container_name: wm-promtail
    restart: always
    command: -config.file=/etc/promtail/promtail-config.yml
    volumes:
      - ./promtail-config.yml:/etc/promtail/promtail-config.yml:ro
      - /var/log:/var/log:ro
      - /var/lib/docker/containers:/var/lib/docker/containers:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
    networks:
      - logging
      - wm-network
    depends_on:
      - loki
    deploy:
      resources:
        limits:
          cpus: '0.3'
          memory: 256M
        reservations:
          cpus: '0.1'
          memory: 64M
    logging:
      driver: json-file
      options:
        max-size: "10m"
        max-file: "3"

# ==================== 数据卷 ====================
volumes:
  loki_data:

# ==================== 网络 ====================
networks:
  logging:
    driver: bridge
    name: wm-logging
  wm-network:
    external: true
    name: wm-network