updated buildx tasks for faster builds

.github/workflows/docker-build.yml

@@ -11,7 +11,7 @@ env:
   PLATFORMS: linux/arm/v7,linux/arm64,linux/amd64
 
 jobs:
-  buildx:
+  build:
     name: Build Multi-Platform Image and Upload to Docker Hub
     runs-on: ubuntu-latest
     steps:
@@ -19,32 +19,19 @@ jobs:
         uses: actions/checkout@v2
         with:
           ref: 'master'
+        
+      - name: Setup QEMU
+        uses: docker/setup-qemu-action@v1
 
       - name: Setup Docker Buildx
-        run: |
-          # Build docker buildx from source
-          export DOCKER_BUILDKIT=1
-          docker build --platform=local -o . git://github.com/docker/buildx
-          mkdir -p ~/.docker/cli-plugins
-          mv buildx ~/.docker/cli-plugins/docker-buildx
-
-          # Docker version information
-          echo "DOCKER VERSION:"
-          docker info
-          echo "BUILDX VERSION:"
-          docker buildx version
-
-          # Install qemu-user-static container
-          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
-          docker buildx create --name builder --driver docker-container --use
-          docker buildx inspect --bootstrap
+        uses: docker/setup-buildx-action@v1
 
       - name: Build and Push
         env:
           DOCKER_TOKEN: ${{ secrets.DOCKER_TOKEN }}
         run: |
           # Login
-          docker login -u "$USERNAME" -p "$DOCKER_TOKEN"
+          echo "$DOCKER_TOKEN" | docker login -u "$USERNAME" --password-stdin
 
           # Setup build parameters
           BUILD_PARAMS="--platform="$PLATFORMS" --push"