Backend docker deploy

backend/default.nix

@@ -0,0 +1,34 @@
+let
+  config = {
+    packageOverrides = pkgs: rec {
+      haskellPackages = pkgs.haskellPackages.override {
+        overrides = haskellPackagesNew: haskellPackagesOld: rec {
+          jitsi-rooms =
+            haskellPackagesNew.callPackage ./converted.nix { };
+        };
+      };
+    };
+  };
+  pkgs = import <nixpkgs> { inherit config; };
+
+
+in
+pkgs.dockerTools.buildImage {
+  name = "jitsi-rooms";
+  tag = "latest";
+  copyToRoot = pkgs.buildEnv {
+    name = "image-root";
+    paths = [
+      pkgs.bash
+      pkgs.coreutils
+    ];
+    pathsToLink = [ "/bin" ];
+  };
+  config = {
+    Cmd = [ "${pkgs.haskellPackages.jitsi-rooms}/bin/jitsi-rooms-exe" ];
+    ExposedPorts = {
+      "9160/tcp" = { };
+      "8081/tcp" = { };
+    };
+  };
+}