Fix workflow definition

Author: ferrarimarco

.github/workflows/main.yml

@@ -7,7 +7,7 @@ on: [push, pull_request]
 
 jobs:
   build:
-    name: Lint the codebase
+    name: Lint the codebase, build and test the image
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
@@ -22,24 +22,25 @@ jobs:
         uses: docker/setup-buildx-action@v1
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
-      - name: Build the container image for x86_64 only
+      - name: Build the container image for x86_64 to get early feedback
         uses: docker/build-push-action@v2
         with:
           context: .
           file: ./Dockerfile
           platforms: linux/amd64
           push: false
           tags: ${{ env.CONTAINER_IMAGE_TAG }}
-      - name: Test the container image
-        shell: bash
-        run: docker run ${{ env.CONTAINER_IMAGE_TAG }}
   deploy:
     environment: Docker Hub
     if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
     name: Deploy the container image
     needs: build
     runs-on: ubuntu-20.04
     steps:
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
       - name: Login to Docker Hub
         uses: docker/login-action@v1
         with:
@@ -53,3 +54,6 @@ jobs:
           platforms: linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le,linux/s390x
           push: true
           tags: ${{ env.CONTAINER_IMAGE_TAG }}
+      - name: Test the container image
+        shell: bash
+        run: docker run ${{ env.CONTAINER_IMAGE_TAG }}