add dockerfile

Dockerfile

@@ -0,0 +1,20 @@
+FROM python:3.12-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+RUN python manage.py collectstatic --noinput 2>/dev/null || true
+
+EXPOSE 8000
+
+CMD ["gunicorn", "--bind", "0.0.0.0:8000", "eng_bot_metrics.wsgi:application"]