From f8c8c9158ec4cae20ac5f2a3135976ded0816022 Mon Sep 17 00:00:00 2001
From: funman300 <funman300@gmail.com>
Date: Wed, 13 May 2026 16:28:10 -0700
Subject: [PATCH] ci: add Docker BuildKit registry cache to speed up Rust
 builds

Caches compiled dependency layers in the Gitea registry under
:buildcache. Subsequent builds that only touch solitaire_server/src/
skip recompiling the full workspace dependency tree.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 .gitea/workflows/docker-build.yml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/.gitea/workflows/docker-build.yml b/.gitea/workflows/docker-build.yml
index 156accf..ed3f6b0 100644
--- a/.gitea/workflows/docker-build.yml
+++ b/.gitea/workflows/docker-build.yml
@@ -36,6 +36,11 @@ jobs:
           username: ${{ gitea.actor }}
           password: ${{ secrets.CI_TOKEN }}
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          driver-opts: network=host
+
       - name: Build and push
         uses: docker/build-push-action@v5
         with:
@@ -45,6 +50,8 @@ jobs:
           tags: |
             ${{ env.IMAGE }}:${{ steps.meta.outputs.sha }}
             ${{ env.IMAGE }}:latest
+          cache-from: type=registry,ref=${{ env.IMAGE }}:buildcache
+          cache-to: type=registry,ref=${{ env.IMAGE }}:buildcache,mode=max
 
       - name: Install kustomize
         run: |