Update Dockerfile

Dockerfile

@@ -1,19 +1,13 @@
-# read the doc: https://huggingface.co/docs/hub/spaces-sdks-docker
-# you will also find guides on how best to write your Dockerfile
-
-FROM python:3.9
-
-WORKDIR /code
-
-COPY ./requirements.txt /code/requirements.txt
-
-RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
+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
 # Install uvicorn
 RUN pip install uvicorn
 # Install dependencies
 RUN pip install -r requirements.txt
-
-COPY . .
-
-ENTRYPOINT ["uvicorn", "app:app"]
-CMD ["--host", "0.0.0.0", "--port", "7860"]
+COPY . /app
+ENTRYPOINT ["uvicorn", "main:app"]
+CMD ["--host", "0.0.0.0", "--port", "7860"]