Best Practices

5.1 Dockerfile Optimization Tips

Practice Why
Use specific base image tags Ensures reproducible builds
Copy dependency files first Leverages Docker layer caching
Run as non-root user Improves container security
Clean up in the same RUN layer Prevents storing temporary files in image layers
Use .dockerignore Excludes unnecessary files from build context

5.2 Security Recommendations

  • Address CRITICAL vulnerabilities before deploying to production
  • Use minimal base images (alpine, slim, distroless) when possible
  • Regularly rebuild images to get updated base image patches