updated both docker files to work on self hosting

Dockerfile

@@ -1,11 +1,26 @@
 # syntax=docker/dockerfile:1
 FROM python:alpine
-WORKDIR /app
+RUN pip install --upgrade pip
 
-COPY requirements.txt requirements.txt
-RUN pip3 install -r requirements.txt
+RUN adduser -D nonroot
+RUN mkdir /home/app/ && chown -R nonroot:nonroot /home/app
+WORKDIR /home/app
+USER nonroot
 
-COPY . .
+COPY --chown=nonroot:nonroot requirements.txt requirements.txt
 
-CMD [ "gunicorn", "-w", "4", "flaskr:app", "-b", "0.0.0.0:5000", "--access-logfile", "-", "--error-logfile", "-"]
+# venv
+ENV VIRTUAL_ENV=/home/app/venv
+
+# python setup
+RUN python -m venv $VIRTUAL_ENV
+ENV PATH="$VIRTUAL_ENV/bin:$PATH"
+RUN export FLASK_APP=__init__.py
+RUN pip install -r requirements.txt
+
+COPY --chown=nonroot:nonroot flaskr flaskr
+
+ENTRYPOINT ["gunicorn"]
+CMD [ "-w", "4", "flaskr:app", "-b", "0.0.0.0:5000", "--access-logfile", "-", "--error-logfile", "-"]
+# CMD ["python", "run.py"]
 # CMD [ "gunicorn", "-w", "4", "flaskr:app", "-b", "0.0.0.0:5000"]

docker-compose.yaml

@@ -1,8 +1,11 @@
+version: "2"
 services:
   flask:
     build:
       context: .
       dockerfile: Dockerfile
+    # command: sh -c "gunicorn -w 4 flaskr:app -b 0.0.0.0:5000 --access-logfile '-' --error-logfile '-'"
+    # command: sh -c "ls"
     ports:
       - "5000:5000"
     volumes: