feat: add docker builder use nix (#911)

* fix(typo): no -> not

* fix: update version

* feat: use nix to build docker image

* feat: ignore nix result

* fix(nix docker builder): failed to verify certificate

flake.nix

@@ -22,11 +22,26 @@
       callPackage = pkgs.darwin.apple_sdk_11_0.callPackage or pkgs.callPackage;
     in {
       # doCheck will fail at write files
-      packages.default =
-        (callPackage ./. {
-          inherit (gomod2nix.legacyPackages.${system}) buildGoApplication;
-        })
-        .overrideAttrs (_: {doCheck = false;});
+      packages = rec {
+
+        ZeroBot-Plugin =
+          (callPackage ./. {
+            inherit (gomod2nix.legacyPackages.${system}) buildGoApplication;
+          })
+          .overrideAttrs (_: {doCheck = false;});
+
+        default = ZeroBot-Plugin;
+
+        docker_builder = pkgs.dockerTools.buildLayeredImage {
+          name = "ZeroBot-Plugin";
+          tag = "latest";
+          contents = [
+            self.packages.${system}.ZeroBot-Plugin
+            pkgs.cacert
+          ];
+        };
+
+      };
       devShells.default = callPackage ./shell.nix {
         inherit (gomod2nix.legacyPackages.${system}) mkGoEnv gomod2nix;
       };