{ pkgs, ... }:
let
  entrypoint = pkgs.writeTextFile {
    name = "entrypoint";
    executable = true;
    destination = "/bin/entrypoint";
    text = builtins.readFile ./entrypoint.sh;
  };
in
pkgs.dockerTools.buildImage {
  name = "prometheus";
  fromImage = pkgs.docker-image-base;

  copyToRoot = pkgs.buildEnv {
    name = "root";
    paths = with pkgs; [
      entrypoint
      prometheus
      yq-go
    ];
    pathsToLink = [ "/bin" ];
  };

  config = {
    Entrypoint = [ "entrypoint" ];
    ExposedPorts = {
      "9090/tcp" = { };
    };
    WorkingDir = "/var/lib/prometheus";
    Volumes = {
      "/etc/prometheus" = { };
      "/var/lib/prometheus" = { };
    };
  };
}