[015a]

Or, if you don't want to install it in your CI/CD. Which could be extremely valuable; some CI/CD providers make "building a docker image" a weirdly hard (and sometimes, even much more expensive) step due to docker-in-docker madness.

[matrss]

In my experience, not using docker to build docker images is a good idea. E.g. buildah[0] with chroot isolation can build images in a GitLab pipeline, where docker would fail. It can still use the same Dockerfile though.

If you want to get rid of your Dockerfiles anyway, nix can also build docker images[1] with all the added benefits of nix (reproducibility, efficient building and caching, automatic layering, etc.).

[0] https://buildah.io/ [1] https://nixos.org/manual/nixpkgs/stable/#ssec-pkgs-dockerToo...