docker-compose.yml

services:
  flask-app:
    build:
      context: .
      dockerfile: Dockerfile
    expose:
      - "5000"
    env_file:
      - .env
    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
    networks:
      - monitoring
    environment:
      - FLASK_ENV=production
      - PROMETHEUS_MULTIPROC_DIR=/tmp
    volumes:
      - ./logs:/app/logs
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:5000/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s
    deploy:
      replicas: 2
      resources:
        limits:
          cpus: '2'
          memory: 2G
        reservations:
          cpus: '1'
          memory: 1G

  nginx:
    image: nginx:1.27-alpine
    container_name: nginx
    ports:
      - "80:80"
    volumes:
      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
    depends_on:
      - flask-app
    networks:
      - monitoring
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "wget", "-qO-", "http://localhost/health"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 10s
    deploy:
      resources:
        limits:
          cpus: '0.5'
          memory: 128M
        reservations:
          cpus: '0.1'
          memory: 32M

  db:
    image: mysql:8.0
    container_name: mysql-db
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: example
      MYSQL_DATABASE: urlshortener
    ports:
      - "3306:3306"
    volumes:
      - mysql-data:/var/lib/mysql
      - ./sql/schema.sql:/docker-entrypoint-initdb.d/01-schema.sql:ro
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "localhost", "-u", "root", "-p${MYSQL_ROOT_PASSWORD}"]
      interval: 10s
      timeout: 5s
      retries: 5
    networks:
      - monitoring

  redis:
    image: redis:7-alpine
    container_name: redis
    ports:
      - "6379:6379"
    volumes:
      - redis-data:/data
    networks:
      - monitoring
    command: redis-server --appendonly yes --maxmemory 512mb --maxmemory-policy allkeys-lru
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5
    deploy:
      resources:
        limits:
          cpus: '1'
          memory: 1G
        reservations:
          cpus: '0.5'
          memory: 512M

  celery-worker:
    build:
      context: .
      dockerfile: Dockerfile.celery
    container_name: celery-worker
    env_file:
      - .env
    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
    networks:
      - monitoring
    environment:
      - FLASK_ENV=production
      - C_FORCE_ROOT=false
    volumes:
      - ./logs:/app/logs
      - ./data:/app/data
    restart: unless-stopped
    command: celery -A tasks worker --loglevel=info --concurrency=4 --max-tasks-per-child=1000
    deploy:
      resources:
        limits:
          cpus: '2'
          memory: 2G
        reservations:
          cpus: '1'
          memory: 1G

  celery-beat:
    build:
      context: .
      dockerfile: Dockerfile.celery-beat
    container_name: celery-beat
    env_file:
      - .env
    depends_on:
      redis:
        condition: service_healthy
    networks:
      - monitoring
    environment:
      - FLASK_ENV=production
    volumes:
      - ./logs:/app/logs
    restart: unless-stopped
    deploy:
      resources:
        limits:
          cpus: '0.5'
          memory: 512M
        reservations:
          cpus: '0.25'
          memory: 256M

  prometheus:
    image: prom/prometheus:latest
    container_name: prometheus
    ports:
      - "9090:9090"
    volumes:
      - ./prometheus:/etc/prometheus
      - prometheus-data:/prometheus
    networks:
      - monitoring
    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'
      - '--web.enable-lifecycle'
    restart: unless-stopped
    deploy:
      resources:
        limits:
          cpus: '1'
          memory: 1G
        reservations:
          cpus: '0.5'
          memory: 512M

  grafana:
    image: grafana/grafana:latest
    container_name: grafana
    ports:
      - "3000:3000"
    environment:
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=admin
      - GF_INSTALL_PLUGINS=
    depends_on:
      - prometheus
    networks:
      - monitoring
    volumes:
      - grafana-data:/var/lib/grafana
    restart: unless-stopped
    deploy:
      resources:
        limits:
          cpus: '1'
          memory: 1G
        reservations:
          cpus: '0.5'
          memory: 512M
  redis-exporter:
    image: oliver006/redis_exporter:latest
    container_name: redis-exporter
    ports:
      - "9121:9121"
    environment:
      - REDIS_ADDR=redis:6379
    networks:
      - monitoring
    depends_on:
      redis:
        condition: service_healthy
    restart: unless-stopped
    deploy:
      resources:
        limits:
          cpus: '0.25'
          memory: 128M
  mysql-exporter:
    image: prom/mysqld-exporter:latest
    container_name: mysql-exporter
    command:
      - '--config.my-cnf=/cfg/.my.cnf'
    volumes:
      - ./my.cnf:/cfg/.my.cnf:ro
    ports:
      - "9104:9104"
    networks:
      - monitoring
    depends_on:
      db:
        condition: service_healthy
    restart: unless-stopped
    deploy:
      resources:
        limits:
          cpus: '0.25'
          memory: 128M
  
  
volumes:
  mysql-data:
    driver: local
  redis-data:
    driver: local
  grafana-data:
    driver: local
  prometheus-data:
    driver: local

networks:
  monitoring:
    driver: bridge
    ipam:
      config:
        - subnet: 172.20.0.0/16