Before start, you should build docker image. (only when first start)
sh build.sh
or
sudo docker build --tag node-nginx:latest .
cd nginx
sudo docker build --tag nginx-app:latest .
sh start.sh
or
sudo docker-compose up
then start node-nginx-1, node-nginx-2, nginx-app, mongodb containers
sh rmdocker.sh
sh mongo.sh
sh app.sh