# chat-deploy 可观测性组件部署配置
# 用于向 itom-platform 可观测中心推送日志和指标
#
# 使用方法：
#   1. 复制 config.env.example 为 config.env 并修改配置
#   2. 启动服务：docker compose --env-file config.env -f docker-compose-observability.yaml up -d
#   3. 如需启用指标采集：docker compose --env-file config.env -f docker-compose-observability.yaml --profile metrics up -d

services:
  # ==============================
  # 日志采集（Promtail）
  # 采集 Docker 容器日志并推送到 itom-platform 的 Loki
  # ==============================
  promtail:
    image: "${PROMTAIL_IMAGE:-grafana/promtail:3.0.0}"
    container_name: chat-deploy-promtail
    restart: always
    user: "0"
    command: ["-config.file=/etc/promtail/config.yml", "-config.expand-env=true"]
    # 禁用 promtail 自身的日志输出到 Docker，避免日志循环
    logging:
      driver: "none"
    environment:
      - LOKI_URL=${LOKI_URL}
      - OBS_AUTH_TOKEN=${OBS_AUTH_TOKEN}
      - OBS_PROJECT=${OBS_PROJECT}
      - OBS_SERVICE=${OBS_SERVICE}
      - DOCKER_API_VERSION=${DOCKER_API_VERSION:-1.44}
    volumes:
      - /var/lib/docker/containers:/var/lib/docker/containers:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./config/promtail.yaml:/etc/promtail/config.yml:ro
    networks:
      - chat-deploy-obs

  # ==============================
  # 指标采集（Prometheus Agent Remote Write）
  # 可选，需要 --profile metrics 启用
  # ==============================
  prometheus-agent:
    profiles: ["metrics"]
    image: prom/prometheus:latest
    container_name: chat-deploy-prometheus-agent
    restart: always
    user: "0"
    command:
      - "--config.file=/prometheus/prometheus.yml"
      - "--storage.tsdb.path=/prometheus"
    environment:
      - METRICS_REMOTE_WRITE_URL=${METRICS_REMOTE_WRITE_URL}
      - METRICS_TARGETS=${METRICS_TARGETS}
      - OBS_AUTH_ENABLE=${OBS_AUTH_ENABLE:-false}
      - OBS_AUTH_TOKEN=${OBS_AUTH_TOKEN}
      - OBS_PROJECT=${OBS_PROJECT}
      - OBS_SERVICE=${OBS_SERVICE}
      - OBS_SERVICE_NAME=${OBS_SERVICE_NAME}
      - OBS_ENV=${OBS_ENV:-prod}
      - REDIS_EXPORTER_TARGETS=${REDIS_EXPORTER_TARGETS}
      - MONGODB_EXPORTER_TARGETS=${MONGODB_EXPORTER_TARGETS}
      - NODE_EXPORTER_TARGETS=${NODE_EXPORTER_TARGETS}
      - REDIS_EXPORTER_SERVICE=${REDIS_EXPORTER_SERVICE}
      - MONGODB_EXPORTER_SERVICE=${MONGODB_EXPORTER_SERVICE}
      - NODE_EXPORTER_SERVICE=${NODE_EXPORTER_SERVICE}
    volumes:
      - prometheus_agent_data:/prometheus
      - ./config/prometheus-agent-entrypoint.sh:/etc/prometheus/entrypoint.sh:ro
    entrypoint: ["/bin/sh", "/etc/prometheus/entrypoint.sh"]
    networks:
      - chat-deploy-obs
    depends_on:
      - mongodb-exporter

  # ==============================
  # MongoDB Exporter
  # 采集 MongoDB 指标，需要 --profile metrics 启用
  # ==============================
  mongodb-exporter:
    profiles: ["metrics"]
    image: percona/mongodb_exporter:0.40.0
    container_name: chat-deploy-mongodb-exporter
    restart: always
    command:
      - "--mongodb.uri=${MONGODB_URI}"
      - "--compatible-mode"
      - "--collect-all"
    environment:
      - MONGODB_URI=${MONGODB_URI}
    ports:
      - "9216:9216"
    networks:
      - chat-deploy-obs

  # ==============================
  # Redis Exporter（可选）
  # 采集 Redis 指标，需要 --profile metrics 启用
  # ==============================
  redis-exporter:
    profiles: ["metrics"]
    image: oliver006/redis_exporter:latest
    container_name: chat-deploy-redis-exporter
    restart: always
    environment:
      - REDIS_ADDR=${REDIS_ADDR}
      - REDIS_PASSWORD=${REDIS_PASSWORD}
    ports:
      - "9121:9121"
    networks:
      - chat-deploy-obs

  # ==============================
  # Node Exporter（可选）
  # 采集系统级指标（CPU/Memory/Disk/Network）
  # 需要 --profile metrics 启用
  # ==============================
  node-exporter:
    profiles: ["metrics"]
    image: prom/node-exporter:latest
    container_name: chat-deploy-node-exporter
    restart: always
    command:
      - "--path.rootfs=/host"
      - "--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)"
    volumes:
      - /:/host:ro,rslave
    ports:
      - "9100:9100"
    networks:
      - chat-deploy-obs

networks:
  chat-deploy-obs:
    driver: bridge

volumes:
  prometheus_agent_data: {}