Documentation: hostname YAML property must be defined when using Docker Compose

[wget]

What is expected

When deploying Dns Proxy Server to a bunch of Docker hosts, I realized that Docker Compose deployment for which no hostname was defined into the YAML file, that DPS cannot answer to the request even if the container name was the same.

Example:

name: wordpress-prod                    
services:                                   
  wordpress-prod-db:             
    image: mariadb:10.11       
                                       
    container_name: wordpress-prod-db
    hostname: wordpress-prod-db  
    environment:
      [...]
    volumes:                      
      - "/srv/my-server.com/data/db:/var/lib/mysql/"
    networks:                                                                                                                                                                                                                                                                                                               
      - wordpress-prod-network
    restart: always
    secrets:
      - [...]

networks:
  wordpress-prod-network:
    name: wordpress-prod-network

What is Happening

We thought that DPS could handle the Docker Container names without having to specify hostname into the Docker Compose YAML file. After some tests, it appears this is needed.

Changes (Optional)

Give an example with Docker Compose in the documentation and provide more explanation about the use of hostname.