How can I optimize Docker layer caching for faster builds?

How can I optimize Docker layer caching for faster builds?

To optimize Docker layer caching, you can structure your Dockerfile to minimize changes in layers. Start with the least frequently changing instructions at the top.

What are some best practices for structuring my Dockerfile?

Some best practices include grouping related commands, using multi-stage builds, and avoiding unnecessary files in the build context.

Can you explain multi-stage builds?

Multi-stage builds allow you to use multiple FROM statements in your Dockerfile, enabling you to copy only the necessary artifacts to the final image, reducing size.

How does caching work in Docker?

Docker caches each layer of the image. If a layer hasn't changed, Docker uses the cached version, speeding up the build process.