컨테이너/app.yml에서 사용자 지정 Docker 네트워크 설정

안녕하세요,

아래 예시와 같은 커스텀 Docker 네트워크 블록을 Discourse 설정 파일(container/app.yml)에 추가하는 방법을 알고 싶습니다.
./launch rebuild를 실행한 후 컨테이너가 실행될 때 "my-network"에 연결되도록 설정하고 싶습니다.

## this is the all-in-one, standalone Discourse Docker container template
##
## After making changes to this file, you MUST rebuild
## /var/discourse/launcher rebuild app
##
## BE *VERY* CAREFUL WHEN EDITING!
## YAML FILES ARE SUPER SUPER SENSITIVE TO MISTAKES IN WHITESPACE OR ALIGNMENT!
## visit http://www.yamllint.com/ to validate this file as needed

templates:
  - "templates/postgres.template.yml"
  - "templates/redis.template.yml"
  - "templates/web.template.yml"
  - "templates/web.ratelimited.template.yml"

....

## Any custom commands to run after building
run:
  - exec: echo "Beginning of custom commands"
  ## If you want to set the 'From' email address for your first registration, uncomment and change:
  ## After getting the first signup email, re-comment the line. It only needs to run once.
  #- exec: rails r "SiteSetting.notification_email='info@unconfigured.discourse.org'"
  - exec: echo "End of custom commands"

networks:
   my-network:
     external: true

네트워크 블록:

networks:
   my-network:
     external: true

답장 좀 주실 수 있나요? 도움이 필요합니다.