rework modules

Signed-off-by: unexplrd <unexplrd@linerds.us>

modules/nixos/system/virt/docker.nix

@@ -0,0 +1,29 @@
+{
+  # pkgs,
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.module.virt.docker;
+in {
+  options = {
+    module.virt.docker.enable =
+      mkEnableOption "enable docker";
+  };
+  config = mkIf cfg.enable {
+    virtualisation.docker = {
+      enable = true;
+      rootless = {
+        enable = true;
+        setSocketVariable = true;
+      };
+      storageDriver = "btrfs";
+      autoPrune.enable = true;
+      #defaultNetwork.settings = {
+      #  dns_enabled = true;
+      #};
+    };
+    virtualisation.oci-containers.backend = "docker";
+  };
+}