version: "3.8"

# AI Stack Logging Infrastructure
# Loki (logs) + Prometheus (metrics) + Grafana (visualization)

services:
  # =============================================================================
  # LOKI - Log Aggregation
  # =============================================================================
  loki:
    image: grafana/loki:2.9.0
    container_name: ai-stack-loki
    ports:
      - "3100:3100"
    volumes:
      - ./config/loki-config.yml:/etc/loki/local-config.yaml:ro
      - loki-data:/loki
    command: -config.file=/etc/loki/local-config.yaml
    networks:
      - logging-network
    restart: unless-stopped
    healthcheck:
      test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:3100/ready || exit 1"]
      interval: 30s
      timeout: 10s
      retries: 3

  # =============================================================================
  # PROMTAIL - Log Collector (ships logs to Loki)
  # =============================================================================
  promtail:
    image: grafana/promtail:2.9.0
    container_name: ai-stack-promtail
    volumes:
      - ./config/promtail-config.yml:/etc/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
    command: -config.file=/etc/promtail/config.yml
    networks:
      - logging-network
    depends_on:
      - loki
    restart: unless-stopped

  # =============================================================================
  # PROMETHEUS - Metrics Collection
  # =============================================================================
  prometheus:
    image: prom/prometheus:v2.47.0
    container_name: ai-stack-prometheus
    ports:
      - "9090:9090"
    volumes:
      - ./config/prometheus.yml:/etc/prometheus/prometheus.yml:ro
      - ./alerting:/etc/prometheus/alerting:ro
      - prometheus-data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--storage.tsdb.retention.time=90d'
      - '--web.enable-lifecycle'
      - '--web.enable-admin-api'
    networks:
      - logging-network
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:9090/-/healthy"]
      interval: 30s
      timeout: 10s
      retries: 3

  # =============================================================================
  # GRAFANA - Visualization & Dashboards
  # =============================================================================
  grafana:
    image: grafana/grafana:10.2.0
    container_name: ai-stack-grafana
    ports:
      - "3001:3000"
    environment:
      - GF_SECURITY_ADMIN_USER=${GRAFANA_ADMIN_USER:-admin}
      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASSWORD:-admin}
      - GF_USERS_ALLOW_SIGN_UP=false
      - GF_SERVER_ROOT_URL=${GRAFANA_ROOT_URL:-http://localhost:3001}
      - GF_INSTALL_PLUGINS=grafana-piechart-panel
    volumes:
      - ./config/grafana/provisioning:/etc/grafana/provisioning:ro
      - ./dashboards:/var/lib/grafana/dashboards:ro
      - grafana-data:/var/lib/grafana
    networks:
      - logging-network
    depends_on:
      - loki
      - prometheus
    restart: unless-stopped
    healthcheck:
      test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:3000/api/health || exit 1"]
      interval: 30s
      timeout: 10s
      retries: 3

  # =============================================================================
  # LOG INGEST API - Custom endpoint for AI stack events
  # =============================================================================
  log-ingest:
    build:
      context: ./log-ingest
      dockerfile: Dockerfile
    container_name: ai-stack-log-ingest
    ports:
      - "3102:3000"
    environment:
      - LOKI_URL=http://loki:3100
      - LOG_LEVEL=info
    networks:
      - logging-network
    depends_on:
      - loki
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:3000/health"]
      interval: 30s
      timeout: 10s
      retries: 3

networks:
  logging-network:
    driver: bridge
    name: ai-stack-logging

volumes:
  loki-data:
    name: ai-stack-loki-data
  prometheus-data:
    name: ai-stack-prometheus-data
  grafana-data:
    name: ai-stack-grafana-data