docker-compose.monitoring.yml

# Production Docker Compose for Monitoring Server
# This runs Prometheus and Grafana on a separate server
version: '3.8'

services:
  prometheus:
    image: prom/prometheus:latest
    ports:
      - "9090:9090"
    volumes:
      - ./prometheus/prometheus.prod.yml:/etc/prometheus/prometheus.yml
      - prometheus_data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.console.libraries=/etc/prometheus/console_libraries'
      - '--web.console.templates=/etc/prometheus/consoles'
      - '--storage.tsdb.retention.time=30d'  # Keep data for 30 days
      - '--web.enable-lifecycle'
      - '--web.enable-admin-api'
    networks:
      - monitoring-network
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:9090/-/healthy"]
      interval: 30s
      timeout: 10s
      retries: 3

  grafana:
    image: grafana/grafana:latest
    ports:
      - "3000:3000"
    volumes:
      - grafana_data:/var/lib/grafana
      - ./grafana/provisioning:/etc/grafana/provisioning
      - ./grafana/dashboards:/var/lib/grafana/dashboards
    environment:
      # Production Grafana settings
      - GF_SECURITY_ADMIN_USER=${GRAFANA_ADMIN_USER:-admin}
      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASSWORD:-changeme}
      - GF_USERS_ALLOW_SIGN_UP=false
      - GF_SECURITY_ALLOW_EMBEDDING=true
      - GF_AUTH_ANONYMOUS_ENABLED=false
      - GF_INSTALL_PLUGINS=grafana-piechart-panel
      # Security headers
      - GF_SECURITY_COOKIE_SECURE=true
      - GF_SECURITY_COOKIE_SAMESITE=strict
    networks:
      - monitoring-network
    restart: unless-stopped
    healthcheck:
      test: ["CMD-SHELL", "curl -f http://localhost:3000/api/health || exit 1"]
      interval: 30s
      timeout: 10s
      retries: 3
    depends_on:
      - prometheus

  # Optional: Add Alertmanager for alerts
  alertmanager:
    image: prom/alertmanager:latest
    ports:
      - "9093:9093"
    volumes:
      - ./alertmanager/alertmanager.yml:/etc/alertmanager/alertmanager.yml
      - alertmanager_data:/alertmanager
    command:
      - '--config.file=/etc/alertmanager/alertmanager.yml'
      - '--storage.path=/alertmanager'
      - '--web.external-url=http://localhost:9093'
    networks:
      - monitoring-network
    restart: unless-stopped

volumes:
  prometheus_data:
  grafana_data:
  alertmanager_data:

networks:
  monitoring-network:
    driver: bridge