sudo docker build . -t example-frontend
sudo docker build . -t example-backend
sudo docker run -p 127.0.0.1:5000:5000 example-frontend
sudo docker run -p 127.0.0.1:8080:8080 example-backend
sudo docker build . -t example-frontend
sudo docker build . -t example-backend
sudo docker run -p 127.0.0.1:5000:5000 example-frontend
sudo docker run -p 127.0.0.1:8080:8080 example-backend