add arm support

.github/workflows/docker-publish.yml

@@ -33,30 +33,37 @@ jobs:
       - name: Build
         run: hugo --minify --baseURL /idaas-book
 
-      - name: Build image
-        run: docker build . --file Dockerfile --tag $IMAGE_NAME
+      - name: Login to dockerhub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
 
-      - name: Log into registry
-        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login docker.pkg.github.com -u ${{ github.actor }} --password-stdin
+      - name: Setup qemu
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: all
 
-      - name: Push image
-        run: |
-          IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/$IMAGE_NAME
+      - name: Setup buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          version: latest
 
-          # Change all uppercase to lowercase
-          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+      - name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
 
+      - name: Push image
+        run: |
           # 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//')
 
-          # Use Docker `latest` tag convention
-          [ "$VERSION" == "main" ] && VERSION=latest
-
-          echo IMAGE_ID=$IMAGE_ID
-          echo VERSION=$VERSION
-
-          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
-          docker push $IMAGE_ID:$VERSION
+          docker buildx build \
+            --tag nxest/idaas-book:$VERSION \
+            --tag nxest/idaas-book:lastest \
+            --platform linux/amd64,linux/arm64 \
+            -f Dockerfile ./ \
+            --push