Fix user permission

Dockerfile

@@ -0,0 +1,29 @@
+FROM python:3.9
+USER root
+
+RUN apt-get update
+RUN apt-get upgrade -y
+RUN apt-get -y install locales vim less libgl1-mesa-dev && \
+    localedef -f UTF-8 -i ja_JP ja_JP.UTF-8
+ENV LANG ja_JP.UTF-8
+ENV LANGUAGE ja_JP:ja
+ENV LC_ALL ja_JP.UTF-8
+ENV TZ JST-9
+ENV TERM xterm
+
+RUN useradd -m -u 1000 prod
+USER prod
+ENV HOME=/home/prod \
+	PATH=/home/prod/.local/bin:$PATH
+
+WORKDIR $HOME/app
+
+COPY ./requirements.txt $HOME/app/requirements.txt
+
+RUN pip install --upgrade pip
+RUN pip install --upgrade setuptools
+RUN pip install --no-cache-dir --upgrade -r $HOME/app/requirements.txt
+
+COPY . $HOME/app
+
+CMD ["flask", "run", "--host", "0.0.0.0"]