Merge pull request #8 from planetscale/joem/arm64-image

build arm64 docker images

Author: joemiller

.github/workflows/release.yaml

@@ -52,6 +52,12 @@ jobs:
         env:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
 
+      # setup qemu and buildx for cross-builds (arm64)
+      - name: Set up QEMU (for arm64 builds)
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Release
         run: |
           set -eou pipefail
@@ -61,8 +67,11 @@ jobs:
 
           git reset --hard && git clean -ffdx && git pull
 
-          docker build -t "$image" .
-          docker push "$image"
+          docker buildx build \
+            -t "$image" \
+            --platform linux/amd64,linux/arm64 \
+            --push \
+            .
 
           gh release create "v${version}" --target main --title "v${version}" --generate-notes
         env: