docker-compose up -d
docker psdocker exec -it mongodb bash
mongo -u mongodbuser -pshow dbs;
db.createUser({user: 'flaskuser', pwd: 'your password', roles: [{role: 'readWrite', db: 'flaskdb'}]})
exit
mongo -u flaskuser -p your password --authenticationDatabase flaskdb
exit
curl -i http://your_server_ip
curl -i\
    -H "Content-Type: application/json" \
    -X POST -d '{"todo": "Dockerize Flask application with MongoDB backend"}'\
    http://your_server_ip/todo
# list all
curl -i http://your_server_ip/todo