docker-compose.yml

version: '3.8'

services:
  # PostgreSQL Database (Primary)
  postgres:
    image: postgres:15-alpine
    container_name: chainlogistics-postgres-primary
    environment:
      POSTGRES_DB: chainlogistics
      POSTGRES_USER: chainlogistics
      POSTGRES_PASSWORD: password
      POSTGRES_REPLICATION_USER: replicator
      POSTGRES_REPLICATION_PASSWORD: replication_password
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
      - ./backend/migrations:/docker-entrypoint-initdb.d
      - ./docker/postgres/primary.conf:/etc/postgresql/postgresql.conf
    networks:
      - chainlogistics-network
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U chainlogistics -d chainlogistics"]
      interval: 10s
      timeout: 5s
      retries: 5
    command: >
      postgres
      -c config_file=/etc/postgresql/postgresql.conf
      -c max_connections=200
      -c shared_buffers=256MB
      -c effective_cache_size=1GB
      -c maintenance_work_mem=64MB
      -c checkpoint_completion_target=0.9
      -c wal_buffers=16MB
      -c default_statistics_target=100
      -c random_page_cost=1.1
      -c effective_io_concurrency=200
      -c work_mem=1310kB
      -c min_wal_size=1GB
      -c max_wal_size=4GB

  # PostgreSQL Read Replica 1
  postgres-replica-1:
    image: postgres:15-alpine
    container_name: chainlogistics-postgres-replica-1
    environment:
      POSTGRES_DB: chainlogistics
      POSTGRES_USER: chainlogistics
      POSTGRES_PASSWORD: password
      PGUSER: chainlogistics
      PGPASSWORD: password
    ports:
      - "5433:5432"
    volumes:
      - postgres_replica_1_data:/var/lib/postgresql/data
      - ./docker/postgres/replica.conf:/etc/postgresql/postgresql.conf
    networks:
      - chainlogistics-network
    depends_on:
      postgres:
        condition: service_healthy
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U chainlogistics -d chainlogistics"]
      interval: 10s
      timeout: 5s
      retries: 5
    command: >
      postgres
      -c config_file=/etc/postgresql/postgresql.conf
      -c hot_standby=on

  # PostgreSQL Read Replica 2
  postgres-replica-2:
    image: postgres:15-alpine
    container_name: chainlogistics-postgres-replica-2
    environment:
      POSTGRES_DB: chainlogistics
      POSTGRES_USER: chainlogistics
      POSTGRES_PASSWORD: password
      PGUSER: chainlogistics
      PGPASSWORD: password
    ports:
      - "5434:5432"
    volumes:
      - postgres_replica_2_data:/var/lib/postgresql/data
      - ./docker/postgres/replica.conf:/etc/postgresql/postgresql.conf
    networks:
      - chainlogistics-network
    depends_on:
      postgres:
        condition: service_healthy
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U chainlogistics -d chainlogistics"]
      interval: 10s
      timeout: 5s
      retries: 5
    command: >
      postgres
      -c config_file=/etc/postgresql/postgresql.conf
      -c hot_standby=on

  # Redis for caching and rate limiting
  redis:
    image: redis:7-alpine
    container_name: chainlogistics-redis
    ports:
      - "6379:6379"
    volumes:
      - redis_data:/data
    networks:
      - chainlogistics-network
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5

  # Backend API Service - Instance 1
  backend-1:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: chainlogistics-backend-1
    environment:
      DATABASE_URL: postgres://chainlogistics:password@postgres:5432/chainlogistics
      DATABASE_READ_REPLICA_URLS: postgres://chainlogistics:password@postgres-replica-1:5432/chainlogistics,postgres://chainlogistics:password@postgres-replica-2:5432/chainlogistics
      REDIS_URL: redis://redis:6379
      HOST: 0.0.0.0
      PORT: 3001
      RUST_LOG: info
      LOG_FORMAT: json
      INSTANCE_ID: backend-1
    ports:
      - "3001:3001"
    depends_on:
      postgres:
        condition: service_healthy
      postgres-replica-1:
        condition: service_healthy
      postgres-replica-2:
        condition: service_healthy
      redis:
        condition: service_healthy
    networks:
      - chainlogistics-network
    volumes:
      - ./backups:/backups
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3001/health"]
      interval: 30s
      timeout: 10s
      retries: 3
    deploy:
      resources:
        limits:
          cpus: '1.0'
          memory: 512M
        reservations:
          cpus: '0.5'
          memory: 256M

  # Backend API Service - Instance 2
  backend-2:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: chainlogistics-backend-2
    environment:
      DATABASE_URL: postgres://chainlogistics:password@postgres:5432/chainlogistics
      DATABASE_READ_REPLICA_URLS: postgres://chainlogistics:password@postgres-replica-1:5432/chainlogistics,postgres://chainlogistics:password@postgres-replica-2:5432/chainlogistics
      REDIS_URL: redis://redis:6379
      HOST: 0.0.0.0
      PORT: 3001
      RUST_LOG: info
      LOG_FORMAT: json
      INSTANCE_ID: backend-2
    ports:
      - "3002:3001"
    depends_on:
      postgres:
        condition: service_healthy
      postgres-replica-1:
        condition: service_healthy
      postgres-replica-2:
        condition: service_healthy
      redis:
        condition: service_healthy
    networks:
      - chainlogistics-network
    volumes:
      - ./backups:/backups
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3001/health"]
      interval: 30s
      timeout: 10s
      retries: 3
    deploy:
      resources:
        limits:
          cpus: '1.0'
          memory: 512M
        reservations:
          cpus: '0.5'
          memory: 256M

  # Backend API Service - Instance 3
  backend-3:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: chainlogistics-backend-3
    environment:
      DATABASE_URL: postgres://chainlogistics:password@postgres:5432/chainlogistics
      DATABASE_READ_REPLICA_URLS: postgres://chainlogistics:password@postgres-replica-1:5432/chainlogistics,postgres://chainlogistics:password@postgres-replica-2:5432/chainlogistics
      REDIS_URL: redis://redis:6379
      HOST: 0.0.0.0
      PORT: 3001
      RUST_LOG: info
      LOG_FORMAT: json
      INSTANCE_ID: backend-3
    ports:
      - "3003:3001"
    depends_on:
      postgres:
        condition: service_healthy
      postgres-replica-1:
        condition: service_healthy
      postgres-replica-2:
        condition: service_healthy
      redis:
        condition: service_healthy
    networks:
      - chainlogistics-network
    volumes:
      - ./backups:/backups
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3001/health"]
      interval: 30s
      timeout: 10s
      retries: 3
    deploy:
      resources:
        limits:
          cpus: '1.0'
          memory: 512M
        reservations:
          cpus: '0.5'
          memory: 256M

  loki:
    image: grafana/loki:2.9.8
    container_name: chainlogistics-loki
    ports:
      - "3100:3100"
    command: -config.file=/etc/loki/local-config.yaml
    volumes:
      - ./docker/loki/loki-config.yaml:/etc/loki/local-config.yaml
      - loki_data:/loki
    networks:
      - chainlogistics-network

  promtail:
    image: grafana/promtail:2.9.8
    container_name: chainlogistics-promtail
    command: -config.file=/etc/promtail/config.yml
    volumes:
      - ./docker/promtail/promtail-config.yml:/etc/promtail/config.yml
      - /var/log:/var/log:ro
      - /var/lib/docker/containers:/var/lib/docker/containers:ro
    depends_on:
      - loki
    networks:
      - chainlogistics-network

  # Nginx Reverse Proxy
  nginx:
    image: nginx:alpine
    container_name: chainlogistics-nginx
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./docker/nginx/nginx.conf:/etc/nginx/nginx.conf
      - ./docker/nginx/ssl:/etc/nginx/ssl
    depends_on:
      - backend
    networks:
      - chainlogistics-network

  # Prometheus for monitoring
  prometheus:
    image: prom/prometheus:latest
    container_name: chainlogistics-prometheus
    ports:
      - "9090:9090"
    volumes:
      - ./docker/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
      - prometheus_data:/prometheus
    networks:
      - chainlogistics-network
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.console.libraries=/etc/prometheus/console_libraries'
      - '--web.console.templates=/etc/prometheus/consoles'

  # Grafana for dashboards
  grafana:
    image: grafana/grafana:latest
    container_name: chainlogistics-grafana
    ports:
      - "3000:3000"
    environment:
      GF_SECURITY_ADMIN_PASSWORD: admin
    volumes:
      - grafana_data:/var/lib/grafana
      - ./docker/grafana/dashboards:/etc/grafana/provisioning/dashboards
      - ./docker/grafana/datasources:/etc/grafana/provisioning/datasources
    networks:
      - chainlogistics-network
    depends_on:
      - prometheus
      - loki

volumes:
  postgres_data:
  postgres_replica_1_data:
  postgres_replica_2_data:
  redis_data:
  prometheus_data:
  grafana_data:
  loki_data:

networks:
  chainlogistics-network:
    driver: bridge