added docker file

Dockerfile

@@ -0,0 +1,9 @@
+FROM python:3.9-slim
+WORKDIR /app
+COPY requirements.txt ./requirements.txt
+RUN apt-get update \ && apt-get -y install libpq-dev gcc \ && pip install psycopg2
+RUN pip install uvicorn
+RUN pip install -r requirements.txt
+COPY . /app
+ENTRYPOINT [“uvicorn”, “main:app”]
+CMD [“ — host”, “0.0.0.0”, “ — port”, “7860”]