Create build_and_push_release.yml

.github/workflows/build_and_push_release.yml

@@ -0,0 +1,36 @@
+name: Build and push release to Docker Hub
+
+on:
+  release:
+    types: [released]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Docker meta
+      id: meta
+      uses: docker/metadata-action@v5
+      with:
+        images: pbstriker38/is-ruby-dead
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+      with:
+        platforms: arm64,amd64
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+    - name: Login to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    - name: Build and push
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        platforms: linux/amd64,linux/arm64
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+