Update Dockerfile

Dockerfile

@@ -1,10 +1,24 @@
 FROM python:3.9
 
-RUN useradd -m -u 1000 user
 WORKDIR /app
 
-COPY --chown=user ./requirements.txt requirements.txt
-RUN pip install --no-cache-dir --upgrade -r requirements.txt
+RUN adduser --disabled-password --gecos '' --shell /bin/bash user \
+ && chown -R user:user /app
+USER user
+ENV HOME=/home/user
+RUN mkdir $HOME/.cache $HOME/.config \
+ && chmod -R 777 $HOME
+WORKDIR $HOME/app
+
+RUN --mount=target=requirements.txt,source=requirements.txt \
+    pip install --no-cache-dir --upgrade -r requirements.txt
+
+COPY --chown=user . $HOME/app
+
+ENV PYTHONUNBUFFERED=1 \
+	GRADIO_ALLOW_FLAGGING=never \
+	GRADIO_NUM_PORTS=1 \
+	GRADIO_SERVER_NAME=0.0.0.0 \
+	GRADIO_THEME=huggingface
 
-COPY --chown=user . /app
 CMD ["python", "app.py"]