1. deploy fn to nginx

build docker image in directory /SHARK/fn, then run image

2. deploy bn (flask app + mysql) with docker compose

docker-compose up under /SHARK/bn, build and run flask_app image and mysql image

2.1 change dockerfile of flask app to production

2.2 log into mysql, initialize dbms by change password, create db

mysql -u root -p
ALTER USER 'root'@'localhost' IDENTIFIED BY 'newpassword'
CREATE DATABASE SHARK