Due to dappnode/DNP_DAPPMANAGER#655 , consider create the dappnode network dncore_network during installation.

This network creation during installation would simplify docker networking and allow using in compose.yml files external: true and name:dncore_network:

version: "3.9"
services:
  random:
    image: chentex/random-logger
    networks:
      - network99

networks:
  network99:
    name: dncore_network
    external: true