As far as I can tell Nomad itself does not use the container name after
container creation, so this should be safe.

OP: https://groups.google.com/d/topic/nomad-tool/kYkyERfVRXE/discussion
v0.8.7 code: https://github.com/hashicorp/nomad/blob/v0.8.7/client/driver/docker.go#L1530-L1531