example.nix

let pkgs = import <nixpkgs> {}; in
# 11. Create an image on top of a layered image
  pkgs.dockerTools.buildImage {
    name = "mutable-directory";
    tag = "latest";
    extraCommands = ''
      mkdir ./example-output
      chmod 777 ./example-output
    '';
    config.Cmd = [ "${pkgs.bash}/bin/bash"
      "-c" "export PATH=${pkgs.coreutils}/bin/; mkdir /example-output/hi-there; ls -la /; ls -la /example-output"];
  }
  
  
  # nix-build ./example.nix && docker load < ./result && docker run --user 1000:1000 -it --rm mutable-directory:latest