coder-templates/image.nix

{
  lib,
  pkgs,
  ...
}:
pkgs.dockerTools.buildImage {
  name = "nix-coder";
  tag = "latest";

  copyToRoot = pkgs.buildEnv {
    name = "image-root";
    paths = [
      pkgs.bashInteractive
      pkgs.nixFlakes
      pkgs.coreutils-full
      pkgs.curl
      pkgs.home-manager
      pkgs.direnv
      (pkgs.writeTextDir "etc/nix/nix.conf" "experimental-features = nix-command flakes")
      (pkgs.writeTextDir "etc/passwd" "coder:x:1000:1000::/home/coder:/bin/bash")
    ];
    pathsToLink = ["/bin" "/etc"];
  };

  config = {
    Cmd = ["/bin/bash"];
    Env = [
      "SSL_CERT_FILE=${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt"
      "HOME=/home/coder"
    ];
  };
}