init dockerfile

Dockerfile

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+# Use the official Python 3.8 slim image as the base image
+FROM python:3.8-slim
+
+WORKDIR /app
+
+# Copy the necessary files and directories into the container
+COPY static/ ./static/
+COPY templates/ ./templates/
+COPY blog/ ./blog/
+COPY app.py requirements.txt  ./
+
+# Upgrade pip and install Python dependencies
+RUN pip3 install --upgrade pip && pip install --no-cache-dir -r requirements.txt
+
+EXPOSE 5000
+CMD ["gunicorn", "app:app", "-b", "0.0.0.0:5000", "-w", "4"]