docker build -f <file name> . - set a custom docker file
volumes allow us to map files in our local machine with files in a container.
docker run -p 3000:3000 [-v /app/node_modules] [-v $(pwd):/app] <image id>
pwd - present working dir
[-v /app/node_modules] - bookmarking a file
docker run -p 3000:3000 -v $(pwd):/app brunokiafuka/frontend
docker run -it brunokiafuka/frontend yarn test - running test
84 is important. 80 is the default port for nginx
docker run -p 8080:80 <image id>
Elastic Beanstalk is good when you are using a container at a time.