topicstreams/docker-compose.yml at main · zydo/topicstreams · GitHub

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services:
  postgres:
    container_name: topicstreams-postgres
    image: postgres:18-alpine
    env_file:
      - .env
    volumes:
      - postgres_data:/var/lib/postgresql
      - ./postgres/init.sql:/docker-entrypoint-initdb.d/init.sql
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:?Missing .env: copy .env.example to .env before starting} -d ${POSTGRES_DB:?Missing .env: copy .env.example to .env before starting}"]
      interval: 10s
      timeout: 5s
      retries: 5
    restart: unless-stopped
    networks:
      - topicstreams-network

  api:
    container_name: topicstreams-api
    build:
      context: .
      target: api
    env_file:
      - .env
    ports:
      - "${HOST_PORT:-80}:${API_PORT:?Missing .env: copy .env.example to .env before starting}"
    depends_on:
      postgres:
        condition: service_healthy
    restart: unless-stopped
    # /status exercises the API and the DB, so a 200 means both are healthy.
    # python (no curl in the slim image) raises on non-2xx -> unhealthy.
    healthcheck:
      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:${API_PORT}/api/v1/status', timeout=5)"]
      interval: 30s
      timeout: 8s
      retries: 3
      start_period: 20s
    networks:
      - topicstreams-network

  # No platform pin: the scraper must run on the host's native architecture.
  # Under amd64 emulation (Rosetta 2 on Apple Silicon) Google's bot detection
  # CAPTCHAs every /search request (verified 2026-06-11).
  scraper:
    container_name: topicstreams-scraper
    build:
      context: .
      target: scraper
    env_file:
      - .env
    volumes:
      - browser_profiles:/app/.browser_profiles
    depends_on:
      postgres:
        condition: service_healthy
    restart: unless-stopped
    # Cap the scraper so a Chromium memory leak gets cgroup-OOM-killed (and
    # restarted) instead of taking down the whole host (postmortem 2026-06-13).
    mem_limit: 1500m
    memswap_limit: 1500m
    networks:
      - topicstreams-network

volumes:
  postgres_data:
    driver: local
  browser_profiles:
    driver: local

networks:
  topicstreams-network:
    driver: bridge