Change-Id: I0d66e49f09313de8abb89f510c7a5098507c572a
The path /var/lib/docker/volumes/kolla_logs/_data/ is too long shorter log path will help to debug from log. The volume path is compatible with docker-engine and docker-ce. Change-Id: I9195d5f24d938f5060fe748aac3ae58c79ec5abf