How can I get the Dockerfile of the image that slimed by docker-slim

[HJX-zhanS]

I need to get the Dockerfile of the image that slimed by the docker-slim tool.

When I used xray to analyze before and after slimming, I can extract the files that only existed in the image before slimming from their respective slim.report.json files.

However, the total size of these files is not equal to the image size before slimming minus the image size after slimming. Why?

So how can I get a Dockerfile of the slimed image?

Thanks!

[kcq]

the default build engine doesn't produce a Dockerfile for the minified image, but you can change it to the docker build engine (using the filag I mentioned in the other discussion thread)