ci: support caching mounts when building Docker images

.github/workflows/docker.yml

@@ -12,10 +12,18 @@ on:
 permissions: read-all
 
 jobs:
-  build_publish_docker_hub:
-    name: Build and Publish Docker Image to Docker Hub
-    if: contains(github.ref, 'refs/tags/')
+  build_and_publish:
+    name: Build and Publish Docker Image
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        registry: [ ghcr, dockerhub ]
+        include:
+          - registry: ghcr
+            image: 'ghcr.io/endstonemc/endstone'
+          - registry: dockerhub
+            image: 'endstone/endstone'
 
     steps:
       - name: Checkout Code
@@ -27,52 +35,14 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Login to Docker Hub
-        if: github.event_name != 'pull_request'
+        if: matrix.registry == 'dockerhub'
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
-      - name: Extract Metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: endstone/endstone
-          tags: |
-            type=raw,value=latest,enable={{ is_default_branch }}
-            type=pep440,pattern={{version}}
-
-      - name: Build and Push
-        id: build-and-push
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          platforms: linux/amd64
-          push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
-          secrets: |
-            sentry-auth-token=${{ secrets.SENTRY_AUTH_TOKEN }}
-
-  build_publish_ghcr:
-    name: Build and Publish Docker Image to GitHub Container Registry
-    runs-on: ubuntu-latest
-    permissions:
-      packages: write
-
-    steps:
-      - name: Checkout Code
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Login to GitHub Container Registry
-        if: github.event_name != 'pull_request'
+        if: matrix.registry == 'ghcr'
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
@@ -83,14 +53,31 @@ jobs:
         id: meta
         uses: docker/metadata-action@v5
         with:
-          images: ghcr.io/endstonemc/endstone
+          images: ${{ matrix.image }}
           tags: |
             type=raw,value=latest,enable={{ is_default_branch }}
             type=pep440,pattern={{version}}
 
+      - name: Conan Cache for Docker
+        uses: actions/cache@v4
+        with:
+          path: conan-docker-cache
+          key: ${{ runner.os }}-conan-docker-${{ hashFiles('conanfile.py') }}
+
+      - name: Inject Conan Cache into Docker
+        uses: reproducible-containers/[email protected]
+        with:
+          cache-map: |
+            {
+              "conan-docker-cache": "/root/.conan2/p",
+            }
+          skip-extraction: ${{ steps.cache.outputs.cache-hit }}
+
       - name: Build and Push
-        id: build-and-push
         uses: docker/build-push-action@v6
+        if: >
+          matrix.registry == 'dockerhub' && startsWith(github.ref, 'refs/tags/') || 
+          matrix.registry == 'ghcr'
         with:
           context: .
           platforms: linux/amd64