Revert "Push multi-arch docker image (#18)"

This reverts commit 75d8f4c.

Signed-off-by: Nick Hill <nickhill@us.ibm.com>

.github/workflows/build-and-push.yml

@@ -5,7 +5,6 @@ on:
     branches: [main]
     tags:
       - v*
-  pull_request:
 
 jobs:
   test:
@@ -23,49 +22,22 @@ jobs:
   build:
     needs: test
     runs-on: ubuntu-latest
-    if: github.event_name == 'push'
-
     env:
-      IMAGE_NAME: rest-proxy
-
+      IMAGE_NAME: kserve/rest-proxy
     steps:
       - uses: actions/checkout@v2
-
-      - name: Setup QEMU
-        uses: docker/setup-qemu-action@v2
-
-      - name: Setup Docker Buildx
-        uses: docker/setup-buildx-action@v2
-
-      - name: Login to DockerHub
-        uses: docker/login-action@v2
-        with:
-          username: ${{ secrets.DOCKER_USER }}
-          password: ${{ secrets.DOCKER_ACCESS_TOKEN }}
-
-      - name: export version variables
+      - name: Build runtime image
+        run: make build
+      - name: Log in to Docker Hub
+        run: docker login -u ${{ secrets.DOCKER_USER }} -p ${{ secrets.DOCKER_ACCESS_TOKEN }}
+      - name: Push to Docker Hub
         run: |
-          IMAGE_ID=kserve/$IMAGE_NAME
-
-          # Change all uppercase to lowercase
-          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
-
           # Strip git ref prefix from version
           VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
-
-          # Strip "v" prefix from tag name
-          # [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
+          echo $VERSION
 
           # Use Docker `latest` tag convention
           [ "$VERSION" == "main" ] && VERSION=latest
 
-          echo "VERSION=$VERSION" >> $GITHUB_ENV
-          echo "IMAGE_ID=$IMAGE_ID" >> $GITHUB_ENV
-
-      - name: Build and push
-        uses: docker/build-push-action@v3
-        with:
-          platforms: linux/amd64,linux/arm/v7,linux/arm64/v8,linux/ppc64le,linux/s390x
-          push: true
-          tags: ${{ env.IMAGE_ID }}:${{ env.VERSION }}
-          target: runtime
+          docker tag ${{ env.IMAGE_NAME }}:latest ${{ env.IMAGE_NAME }}:$VERSION
+          docker push ${{ env.IMAGE_NAME }}:$VERSION