ci: add github workflow for docker build & publish (#24)

.dockerignore

@@ -0,0 +1 @@
+target/

.github/workflows/docker-build.yml

@@ -0,0 +1,38 @@
+name: Docker Build and Push
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+
+    - name: Login to DockerHub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+    - name: Build and push cloud Docker image
+      uses: docker/build-push-action@v4
+      with:
+        context: .
+        file: docker/Dockerfile.cloud
+        push: true
+        tags: scrolltech/sdk-cloud-prover:${{ github.ref_name }},scrolltech/sdk-cloud-prover:latest
+
+    # - name: Build and push local Docker image
+    #   uses: docker/build-push-action@v4
+    #   with:
+    #     context: .
+    #     file: docker/Dockerfile.local
+    #     push: true
+    #     tags: scrolltech/sdk-local-prover:${{ github.ref_name }},scrolltech/sdk-local-prover:latest

docker/Dockerfile.cloud

@@ -0,0 +1,23 @@
+# Use the official Rust image as the base image
+FROM scrolltech/go-rust-builder:go-1.21-rust-nightly-2023-12-03 as builder
+
+# Set the working directory
+WORKDIR /usr/src/app
+
+# Copy the entire project
+COPY . .
+
+# Build the project
+RUN cargo build --release --example cloud
+
+# Create a new stage with a minimal Ubuntu image
+FROM ubuntu:20.04
+
+# Install necessary dependencies
+RUN apt-get update && apt-get install -y libssl-dev && rm -rf /var/lib/apt/lists/*
+
+# Copy the built binary from the builder stage
+COPY --from=builder /usr/src/app/target/release/examples/cloud /usr/local/bin/cloud
+
+# Set the entrypoint
+ENTRYPOINT ["cloud"]