Support multiple platforms

.github/workflows/release.yml

@@ -75,6 +75,8 @@ jobs:
 
       - name: "Set up QEMU"
         uses: docker/setup-qemu-action@v1.1.0
+        with:
+          platforms: all
 
       - name: "Set up Docker Buildx"
         uses: docker/setup-buildx-action@v1
@@ -91,7 +93,7 @@ jobs:
           context: ./docker
           file: docker/Dockerfile
           push: true 
-          platforms: linux/amd64
+          platforms: linux/amd64, linux/arm64
           tags: |
             webgoat/goatandwolf:${{ env.WEBGOAT_TAG_VERSION }}
             webgoat/goatandwolf:latest

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM openjdk:15.0.2-slim
+FROM openjdk:16-slim
 
 ARG webgoat_version=8.2.1-SNAPSHOT
 ENV webgoat_version_env=${webgoat_version}