Dockerfile Optimization for Fast Builds and Light Images

Dockerfile Optimization for Fast Builds and Light Images

We will learn how to take advantage of Dockerfile Optimization for Fast Builds and Light Images. Docker BuildKit can be used to optimize Dockerfiles and achieve significant gains in performance when building images, while reducing image size.

The explanation above was extracted from Docker’s official docs and summarizes what a Dockerfile is for. Dockerfiles are important to work with because they are our blueprint, our record of layers added to a Docker base image.

We will learn how to take advantage of BuildKit features, a set of enhancements introduced on Docker v18.09. Integrating BuildKit will give us better performance, storage management, and security.


  • Decrease build time
  • Reduce image size
  • Gain maintainability
  • Gain reproducibility
  • Understand multi-stage Dockerfiles
  • Understand BuildKit features


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