initial commit, adding flask structure, README, routes

- routes defined in routes.py uses the <path:..> function to catch
  every non-empty url comming along
- request.full_path is used to get the entire url, as <path:> would
  remove eg GET '?' from the url, which we don't want
  for the link forwarding.
- request.full_path[1:] removes the '/' from the url

docker/short-server/Dockerfile

@@ -0,0 +1,8 @@
+FROM python:3.8-slim-buster
+RUN apt-get update && apt-get upgrade -y
+RUN apt-get install gcc libmariadbclient-dev -y 
+RUN pip3 install google-oauth google-api-python-client
+RUN pip3 install flask Flask-SQLAlchemy flask_migrate flask_wtf python-dotenv mysqlclient
+COPY docker-entrypoint.sh /usr/local/bin/
+EXPOSE 3001
+ENTRYPOINT ["docker-entrypoint.sh"]

docker/short-server/docker-entrypoint.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+set -e
+
+sleep 5
+
+if [[ "$1" = "shell" ]]; then
+    exec /bin/bash
+fi
+
+cd /home/short-server
+python3 server.py
+