feat: Add Dockerfile and CI build step

.github/workflows/ci.yml

@@ -26,3 +26,16 @@ jobs:
     - name: Run tests
       run: |
         python -m unittest test_sbg.py
+
+  docker_build:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - name: Build Docker image
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: false
+        tags: sbg-gitlab-cloner:latest

Dockerfile

@@ -0,0 +1,23 @@
+# Use an official Python runtime as a parent image
+FROM python:3.13-slim
+
+# Install git
+RUN apt-get update && apt-get install -y --no-install-recommends git && rm -rf /var/lib/apt/lists/*
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Copy the requirements file into the container at /app
+COPY requirements.txt .
+
+# Install any needed packages specified in requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the script into the container at /app
+COPY sbg.py .
+
+# Make the script executable
+RUN chmod +x sbg.py
+
+# Set the entrypoint to run the script
+ENTRYPOINT ["./sbg.py"]