nixos-config/modules/docker/default.nix

{ lib, pkgs, config, ... }:
with lib;
let
  cfg = config.eboskma.docker;
  matrixClientConfig = pkgs.writeText "element-web.json" (builtins.readFile ./element-web.json);
in
{

  options.eboskma.docker = { enable = mkEnableOption "activate docker"; };

  config = mkIf cfg.enable {

    environment.systemPackages = with pkgs; [ docker-compose ];

    virtualisation.docker = {
      enable = true;
      autoPrune = {
        enable = true;
        dates = "weekly";
      };
    };

    # docker run -d --restart=always --name element-web -p 8888:80 -v $PWD/element-web.json:/app/config.json vectorim/element-web
    virtualisation.oci-containers.containers = {
      element-web = {
        autoStart = true;
        image = "vectorim/element-web";
        ports = [
          "8888:80"
        ];
        volumes = [
          "${matrixClientConfig}:/app/config.json"
        ];
      };
    };

    users.extraUsers.${config.eboskma.var.mainUser}.extraGroups =
      [ "docker" ];

  };
}