add user to Dockerfile

Dockerfile

@@ -1,10 +1,19 @@
 FROM python:3.9
 
-WORKDIR /code
+RUN useradd -m -u 1000 user
 
-COPY ./requirements.txt /code/requirements.txt
+USER user
 
-RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH
+
+WORKDIR $HOME/app
+
+COPY --chown=user . $HOME/app
+
+COPY ./requirements.txt /app/requirements.txt
+
+RUN pip install --no-cache-dir --upgrade -r /app/requirements.txt
 
 COPY . .