Add Docker image build for compute workers (#837)

Adds a Dockerfile (Ubuntu 24.04 + WineHQ) and an `xmake docker` task to build and optionally push a zenserver-compute Docker image, enabling Linux deployment of compute workers that run Windows executables via Wine.

1 files changed, 17 insertions, 0 deletions

diff --git a/xmake.lua b/xmake.lua
index 561f9f399..acab78600 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -382,6 +382,23 @@ task("bundle")
         bundle()
     end)
 
+task("docker")
+    set_menu {
+        usage = "xmake docker [--push] [--no-wine] [--win-binary PATH] [--tag TAG] [--registry REGISTRY]",
+        description = "Build Docker image for zenserver compute workers",
+        options = {
+            {nil, "push", "k", nil, "Push the image after building"},
+            {nil, "no-wine", "k", nil, "Build without Wine (smaller image, Linux-only workers)"},
+            {nil, "win-binary", "v", nil, "Path to Windows zenserver.exe to include in image"},
+            {nil, "tag", "v", nil, "Override image tag (default: version from VERSION.txt)"},
+            {nil, "registry", "v", nil, "Registry prefix (e.g. ghcr.io/epicgames)"},
+        }
+    }
+    on_run(function ()
+        import("scripts.docker")
+        docker()
+    end)
+
 task("kill")
     set_menu {
         usage = "xmake kill",