Rancher Version: 0.59.0

Docker Version: 1.9.1

OS: Ubuntu 15.10

Steps to Reproduce:

web:
  image: httpd
  volumes:
    - ./htdocs:/usr/local/apache2/htdocs

And then try to boot it up using $ rancher-compose up -d

Results:
Fail to start container, with the following exception in rancher-server
400 Client Error: Bad Request ("./htdocs includes invalid characters for a local volume name, only [a-zA-Z0-9][a-zA-Z0-9_.-] are allowed")

Expected:
Successful start of container, interpreting the volume as a relative path instead of a name. This works as expected when using docker-compose.