Update Dockerfile

Dockerfile

@@ -7,7 +7,13 @@ COPY ./requirements.txt /code/requirements.txt
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
 COPY . .
-RUN mkdir ~/matplotlib_config
-ENV MPLCONFIGDIR=~/matplotlib_config
+RUN useradd -m -u 1000 user
+USER user
+ENV HOME=/home/user \
+	PATH=/home/user/.local/bin:$PATH
+
+WORKDIR $HOME/app
+
+COPY --chown=user . $HOME/app
 
 CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]