prepared app for production (removed global variables, add flask-pymongo as db driver

Dockerfile-backend-flask

@@ -0,0 +1,18 @@
+FROM cjvt-python-env
+
+RUN pip3 install gunicorn
+
+RUN mkdir -p /project/src/backend_flask
+RUN mkdir -p /project/src/pkg
+RUN mkdir -p /project/data
+
+COPY src/backend_flask /project/src/backend_flask
+COPY src/pkg /project/src/pkg
+
+COPY data/appindex.json /project/data
+
+COPY src/backend_flask/entrypoint.sh /.
+
+COPY src/backend_flask/conf_files/prod_conf.yaml /project
+
+ENTRYPOINT ["/bin/bash", "/entrypoint.sh"]