It's quite a challenge to try and get a Docker image build as small as possible. But the worst bloat is coming from having to use CentOS 7 as a base image.

pfff is mandatory for you to use CentOS?

You have no much room for improvement there.

Quick tip, check out multi step dockerfiles.. Depends on what you are doing of course, but in my case I can do the build in one step, then copy the artifacts to the other step.. My end image is about 3mb, all included :D

@antorqs not mandatory but preferred due to my other team members not quite understanding what containerisation is. They just think it's another VM and still want all the features of a normal CentOS. But really, most devs don't even use 90% of the features in a Linux environment. More frustrating is that this is only for local development purposes.

For now I'll stick with it but will try to convince them they don't need it.

@AndreKlang multi-step dockerfiles is something new isn't it? Will need to read up on it.

@IdolWotaP yeah, kinda, I just found out a week ago :) https://docs.docker.com/develop/...