Add github actions to build docker image

.github/workflows/build-img.yml

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+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - refactor
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./Full.Dockerfile # Specify the Dockerfile to use
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Full.Dockerfile

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+# Use the latest official Rust image as the base
+FROM rust:latest AS base
+
+# Use bash as the shell
+SHELL ["/bin/bash", "-c"]
+
+# Install NVM, Node.js, and Yarn
+RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash \
+    && . $HOME/.nvm/nvm.sh \
+    && nvm install 18 \
+    && nvm alias default 18 \
+    && nvm use default \
+    && npm install -g yarn
+
+# Pre-configure Git
+RUN git config --global advice.detachedHead false \
+    && git config --global core.compression 0 \
+    && git config --global protocol.version 2 \
+    && git config --global http.postBuffer 1048576000 \
+    && git config --global fetch.verbose true
+
+# Install Foundry
+RUN curl -L https://foundry.paradigm.xyz | bash \
+    && . $HOME/.bashrc \
+    && foundryup
+
+# Verify Foundry installation
+RUN . $HOME/.bashrc && forge --version
+
+# Stage for building contracts
+FROM base AS contract-builder
+
+# Set the working directory
+WORKDIR /relayer
+
+# Copy only the files needed for contract building
+COPY packages/contracts/package.json packages/contracts/yarn.lock ./packages/contracts/
+COPY package.json yarn.lock ./
+
+# Install dependencies
+RUN . $HOME/.nvm/nvm.sh && nvm use default && yarn install --frozen-lockfile
+
+# Copy contract source files
+COPY packages/contracts ./packages/contracts
+
+# Build the contracts
+WORKDIR /relayer/packages/contracts
+RUN . $HOME/.bashrc && forge build
+
+# Stage for building the relayer
+FROM base AS relayer-builder
+
+# Set the working directory
+WORKDIR /relayer/packages/relayer
+
+# Copy the Cargo.toml and Cargo.lock files
+COPY packages/relayer/Cargo.toml packages/relayer/Cargo.lock ./
+
+# Create a dummy main.rs to build dependencies
+RUN mkdir src && echo "fn main() {}" > src/main.rs
+
+# Build dependencies
+RUN cargo build
+
+# Remove the dummy file
+RUN rm src/main.rs
+
+# Copy the actual source code
+COPY packages/relayer/src ./src
+
+# Build the actual application
+RUN cargo build
+
+# Final stage
+FROM base AS final
+
+# Set the working directory
+WORKDIR /relayer
+
+# Copy built artifacts from previous stages
+COPY --from=contract-builder /relayer/packages/contracts ./packages/contracts
+COPY --from=relayer-builder /relayer/packages/relayer/target ./packages/relayer/target
+
+# Set the working directory for the Rust project
+WORKDIR /relayer/packages/relayer
+
+# Expose port
+EXPOSE 4500
+
+# Set the default command
+CMD ["cargo", "run"]