feature(docker): add docker daemon config for nixos

modules/nixos/docker.nix

@@ -0,0 +1,23 @@
+{ config, lib, pkgs, ...}:
+
+{
+  virtualisation.docker = {
+    enable = true;
+    # Customize Docker daemon settings
+    daemon.settings = {
+      dns = [ "1.1.1.1" "8.8.8.8" ];
+      log-driver = "journald";
+      registry-mirrors = [ "https://mirror.gcr.io" ];
+      storage-driver = "overlay2";
+    };
+    # Use the rootless mode
+    rootless = {
+      enable = true;
+      setSocketVariable = true;
+    };
+    # Install docker-compose
+    extraPackages = with pkgs; [
+      docker-compose
+    ];
+  };
+}