12.4Docker Configuration

Dockerfile for Test Runner

FROM node:24-slim

# Install Playwright CLI + browsers with system dependencies
RUN npm install -g @playwright/cli@latest \
    && npx playwright install --with-deps chromium

# Copy test scripts
WORKDIR /tests
COPY . .

# Initialize the workspace
RUN playwright-cli install

CMD ["./run-tests.sh", "all"]

(You can also start from Microsoft's official Playwright image — mcr.microsoft.com/playwright:v1.61.0-noble — which ships browsers and dependencies preinstalled.)

docker-compose.yml (with test app)

version: '3.8'
services:
  app:
    build: ./app
    ports:
      - "3000:3000"
    healthcheck:
      test: curl -f http://localhost:3000/health
      interval: 5s
      timeout: 3s
      retries: 5

  tests:
    build:
      context: ./tests
      dockerfile: Dockerfile
    depends_on:
      app:
        condition: service_healthy
    environment:
      - TEST_BASE_URL=http://app:3000
    volumes:
      - ./test-results:/tests/failures