Rename the config dir to setup

setup/Dockerfile

@@ -0,0 +1,18 @@
+FROM python:3-alpine
+
+RUN mkdir -p /app
+WORKDIR /app
+
+COPY requirements.txt requirements.txt
+RUN apk add --no-cache git \
+ && pip install -r requirements.txt
+
+COPY server.py ./server.py
+COPY setup.py ./setup.py
+COPY main.py ./main.py
+
+RUN python setup.py https://github.com/mailu/mailu /data
+
+EXPOSE 80/tcp
+
+CMD gunicorn -w 4 -b 0.0.0.0:80 -b [::]:80 --access-logfile - --error-logfile - --preload main:app