Docker compose file config

0
votes

My docker cli is docker-compose -f docker-compose.yml -f docker-compose.override.yml up --build -d

First yml is base file
Second one is override for development purpose.

My legacy compose file has strange volume config like this

first yml is clear. It makes use of external volume. I have to create volume before hand for docker.

volumes:
  static:
    external: true
  media:
    external: true
  scheduler:
    external: true

But the second one. What does it mean?

volumes:
  static: {}
  media: {}
  scheduler: {}
  pgdata: {}

My docker version
Docker version 1.12.2, build bb80604, experimental
docker-compose version 1.8.1, build 878cff1
OSX 10.11.6

I have read https://docs.docker.com/compose/compose-file/#version-2 But I do not find the answer

1
docker-compose

1 Answers

1
votes

It means "don't use external volumes", have Compose create them.