Docker Best Practices

Remember that time you spent an hour debugging a Docker container, only to realize it was an outdated base image causing the issue? You're not alone. Mastering Docker best practices can save you countless headaches and make your containerized journey smoother.

In this article, we'll delve into essential tips and tricks to ensure your Docker deployments are efficient, secure, and maintainable.

  1. Use official images as a base image

  2. Minimize your image size by chaining commands together

  3. Create a .dockerignore file to exclude unnecessary files during build

  4. For production images, use multi-stage builds to reduce image size

  5. Use environment variables for configurations

  6. Add a health check instruction to your Dockerfile

  7. Define resource constraints in your Docker-Compose file

  8. Use tools like Docker logs, ELK stack, or Prometheus for comprehensive logging and monitoring

  9. Push your custom images to a private registry

  10. Tag your images for versioning

Happy coding.

Written by - Dishant Sethi


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