docker-compose.yml

services:
  postgres:
    image: postgres:17-alpine
    restart: unless-stopped
    env_file: .env
    environment:
      # docker-entrypoint.sh expects these names; values come from .env
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
      POSTGRES_DB: ${POSTGRES_DB}
    ports:
      - "${POSTGRES_PORT:-5432}:5432"
    volumes:
      - pgdata:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
      interval: 5s
      timeout: 5s
      retries: 10

  bot:
    build: .
    restart: unless-stopped
    env_file: .env
    environment:
      # Inside the compose network postgres always listens on 5432;
      # POSTGRES_PORT from .env only controls the host port mapping.
      POSTGRES_HOST: postgres
      POSTGRES_PORT: "5432"
    # Makes host.docker.internal resolve to the host machine, so a proxy
    # running on the host can be used as socks5://host.docker.internal:<port>
    extra_hosts:
      - "host.docker.internal:host-gateway"
    depends_on:
      postgres:
        condition: service_healthy

volumes:
  pgdata: