[annymsMthd]

Multistage builds do not squash at the end.

[chatmasta]

You can do this with experimental flags [0] and --squash [1] [2]

[0] https://github.com/moby/buildkit/blob/master/frontend/docker...

[1] https://geraldonit.com/2017/11/13/how-to-create-small-docker...

[2] https://docs.docker.com/engine/reference/commandline/image_b...