This parameter allows to set the UTS namespace of the container, as in
the `--uts=X` Docker CLI parameter:
<https://docs.docker.com/engine/reference/run/#uts-settings---uts>
The only allowed value, if set, is "host".
Signed-off-by: Marco Trillo <martri@arantia.com>
Signed-off-by: Diego Alvarez <dyako.developer@gmail.com>