docker volume

#docker volume --help

Usage:    docker volume [OPTIONS] [COMMAND]

Manage Docker volumes

Commands:
  create                  Create a volume
  inspect                  Return low-level information on a volume
  ls                      List volumes
  rm                      Remove a volume

Run 'docker volume COMMAND --help' for more information on a command

  --help=false      Print usage
#docker volume ls --help

Usage:    docker volume ls [OPTIONS]

List volumes

  -f, --filter=[]      Provide filter values (i.e. 'dangling=true')
  --help=false        Print usage
  -q, --quiet=false    Only display volume names

dangling=true 按照中文来翻译的话,意思是指『悬空』的 image,我理解成『没有被使用的 image』。 http://note.qidong.name/2017/06/26/docker-clean/