Added dockerfile and workflow to push to dockerhub

Author: rakshith-ravi

.github/workflows/release.yml

@@ -233,6 +233,36 @@ jobs:
           name: artifacts
           path: dist-manifest.json
 
+  publish-to-dockerhub:
+    runs-on: ubuntu-latest
+    needs: [plan, should-publish]
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: "Build and push docker image"
+        run: |
+          docker build . -t leptos/cargo-leptos:latest -t leptos/cargo-leptos:stable;
+          docker push leptos/cargo-leptos:latest;
+          docker push leptos/cargo-leptos:stable;
+          
+          tag="";
+          for i in $(echo ${{ needs.plan.outputs.tag }} | tr '.' '\n')
+          do
+            if [[ $tag == "" ]]; then
+              tag="$i";
+            else
+              tag="$tag.$i";
+            fi
+            docker tag leptos/cargo-leptos:latest leptos/cargo-leptos:$tag;
+            docker push leptos/cargo-leptos:$tag;
+          done
+
   # Create a Github Release while uploading all files to it
   announce:
     needs:

Dockerfile

@@ -0,0 +1,9 @@
+FROM --platform=amd64 rust:1.71 as build
+
+RUN cargo install cargo-leptos
+
+FROM --platform=amd64 rust:1.71
+
+COPY --from=build /usr/local/cargo/bin/cargo-leptos /usr/local/cargo/bin/cargo-leptos
+
+ENTRYPOINT ["cargo-leptos"]