Fix docker build test to use multiarch build (genome-nexus#712)

* Fix docker build test to use multiarch build

* Switch to temurin image

.github/workflows/test_docker_build.yml

@@ -6,9 +6,30 @@ jobs:
     steps:
       - name: 'Checkout git repo'
         uses: actions/checkout@v1
-      - name: Build Docker image
-        uses: docker/build-push-action@v1.0.1
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v4
         with:
-          repository: genomenexus/gn-spring-boot
-          # don't push, since this is a test
+          images: |
+            genomenexus/gn-spring-boot
+          tags: |
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+          
+      # The following two actions are required to build multi-platform images
+      # buildx is an extension of docker build, QUEM is used to convert the binary to varies architecture
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2     
+
+      - name: Build Docker Image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
           push: false
+          tags: ${{ steps.meta.outputs.tags }}
+          platforms: linux/amd64,linux/arm64
+          file: Dockerfile
+          cache-from: type=gha
+          cache-to: type=gha

Dockerfile

@@ -1,9 +1,9 @@
-FROM maven:3.6-jdk-13
+FROM maven:3-eclipse-temurin-11
 RUN mkdir /genome-nexus
 ADD . /genome-nexus
 WORKDIR /genome-nexus
 RUN mvn -DskipTests clean install
 
-FROM openjdk:13-slim
+FROM eclipse-temurin:11
 COPY --from=0 /genome-nexus/web/target/*.war /app.war
 CMD ["java", "-Dspring.data.mongodb.uri=${MONGODB_URI}", "-jar", "/app.war"]