DevOps docker critical
Docker Best Practices
Docker best practices for multi-stage builds, security hardening, image optimization, and production-ready containers.
- Difficulty
- intermediate
- Read time
- 1 min read
- Version
- v1.0.0
- Confidence
- established
- Last updated
Quick Reference
Docker: Use multi-stage builds to minimize image size. Run as non-root user (USER node). Use distroless or alpine base images. Pin versions with SHA digests. COPY before RUN for cache efficiency. No secrets in images - use build secrets or runtime injection.
Use When
- Building Docker images for production
- Optimizing container image size
- Securing containerized applications
- Setting up CI/CD pipelines with Docker
Skip When
- Local development only
- Non-containerized deployments
Docker Best Practices
Docker best practices for multi-stage builds, security hardening, image optimization, and production-ready containers.