Slim(toolkit): Don't change anything in your container image and minify it by up to 30x (and for compiled languages even more) making it secure too! (free and open source)
What's in ubuntu_20:main? Is it an application container image? What kind of application do you have there? What do your ENTRYPOINT and CMD instructions look like in you image?
slim b --http-probe=false --include-shell=true ubuntu_20:main;
I'm trying to compress an docker with my changes and new directories, but they don't make it into the new image.