update again the docker image

Dockerfile

@@ -1,29 +1,20 @@
 # For more information, please refer to https://aka.ms/vscode-docker-python
 FROM python:3.9-slim
 
-# Keeps Python from generating .pyc files in the container
-ENV PYTHONDONTWRITEBYTECODE=1
+# Creates a non-root user with an explicit UID and adds permission to access the /code folder
+# For more info, please refer to https://aka.ms/vscode-docker-python-configure-containers
+RUN useradd -m -u 1000 appuser && chown -R appuser /code
 
-# Turns off buffering for easier container logging
-ENV PYTHONUNBUFFERED=1
 # Where we'll copy the code
 WORKDIR /code
 
 # Install pip requirements
-COPY requirements.txt /code/requirements.txt
-RUN python -m pip install --no-cache-dir --upgrade -r /code/requirements.txt
+COPY ./requirements.txt /code/requirements.txt
+RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
-# Creates a non-root user with an explicit UID and adds permission to access the /code folder
-# For more info, please refer to https://aka.ms/vscode-docker-python-configure-containers
-RUN useradd -m -u 1000 appuser && chown -R appuser /code
 USER appuser
 
-ENV HOME=/home/appuser
-ENV PATH=/home/appuser/.local/bin:$PATH
-
-WORKDIR $HOME/app
-
-COPY --chown=appuser . $HOME/app
+COPY --chown=appuser ./ /code
 
 # During debugging, this entry point will be overridden. For more information, please refer to https://aka.ms/vscode-docker-python-debug
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]