added nginx with supervisor

so much suffering occurred here.  Let's hope it was worth it.

Dockerfile

@@ -1,13 +1,34 @@
-FROM docker.io/python:3.8-buster
+FROM ubuntu:lunar
 LABEL maintainer="Andrew Simonson <asimonson1125@gmail.com>"
 
-WORKDIR /app
-ADD ./src /app
+ENV DEBIAN_FRONTEND noninteractive
 
-COPY . .
+RUN apt-get update
+RUN apt-get install -y python3-pip nginx gunicorn supervisor 
 
-RUN apt-get -yq update && \
-    pip install --no-cache-dir -r ./src/requirements.txt
-WORKDIR /app/src
+# Setup flask application
+RUN mkdir -p /deploy/app
+COPY src /deploy/app
+RUN pip install -r /deploy/app/requirements.txt
 
-CMD [ "gunicorn", "--bind", "0.0.0.0:8080", "app:app"]
+# Setup nginx
+RUN rm /etc/nginx/sites-enabled/default
+COPY flask.conf /etc/nginx/sites-available/
+RUN ln -s /etc/nginx/sites-available/flask.conf /etc/nginx/sites-enabled/flask.conf && \
+    echo "daemon off;" >> /etc/nginx/nginx.conf
+
+# Setup supervisord
+RUN mkdir -p /var/log/supervisor
+COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+COPY gunicorn.conf /etc/supervisor/conf.d/gunicorn.conf
+
+# Permissions
+# RUN adduser --disabled-password --gecos '' supervisor && \
+RUN chmod -R 777 /var/* && \
+    chown -R root /var/*
+
+# Entrypoint
+USER root
+
+# Start processes
+CMD ["/usr/bin/supervisord"]

flask.conf

@@ -0,0 +1,9 @@
+server {
+    listen      8080;
+
+    location / {
+        proxy_pass http://localhost:5000/;
+        proxy_set_header Host $host;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    }
+}

gunicorn.conf

@@ -0,0 +1,3 @@
+[program:gunicorn]
+command=/usr/bin/gunicorn app:app -b localhost:5000
+directory=/deploy/app

supervisord.conf

@@ -0,0 +1,19 @@
+[supervisord]
+nodaemon=true
+redirect_stderr=true
+stdout_logfile=/dev/null
+username = dummy
+password = dummy
+
+[program:nginx]
+command=/usr/sbin/nginx
+redirect_stderr=true
+stdout_logfile=/dev/null
+
+[unix_http_server]
+username = dummy
+password = dummy
+
+[supervisorctl]
+username = dummy
+password = dummy