ci -> nix 2

deployments/ci.nix

@@ -275,6 +275,8 @@ in
        services.ntp.enable = false;
        services.openssh.allowSFTP = false;
 
+       virtualisation.docker.enable = true;
+
        services.gitlab-runner = {
          enable = true;
          configOptions = 	{
@@ -283,10 +285,10 @@ in
              docker = { cache_dir = "";
                disable_cache = true;
                host = "";
-               image = "nixos/nix:1.11"; privileged = true;
+               image = "nixos/nix:2.1.3"; privileged = true;
              };
              executor = "docker";
-             name = "docker-nix-1.11";
+             name = "docker-nix-2.1.3";
              token = pkgs.lib.removeSuffix "\n"  (builtins.readFile ./gitlab_token.secret);
              url = "https://xgitlab.cels.anl.gov/";
            }];