adding Dockerfile and ignores

Dockerfile

@@ -0,0 +1,22 @@
+# Use official Python image
+FROM python:3.11-slim
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies if needed (none for this app)
+# RUN apt-get update && apt-get install -y gcc && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements and install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Create a non-root user
+RUN useradd --create-home --shell /bin/bash app
+USER app
+
+# Command to run the application
+CMD ["python", "main.py"]