1. docker build -t registry.entgra.io/entgra-emqx:4.4.11-entgra-v2 -f Dockerfile .
2. Change Application server hostname in docker-compose
3. docker-compose up -d
4. docker exec -it $(docker ps -aq -n 1) /bin/bash 
5. docker-compose down

```
For more emqx-docker things:

https://github.com/emqx/emqx/tree/master/deploy/docker
```