Can not specify priority class #260
Description
Hi there,
It would be great to be able to specify the priority class for this deployment.
In the case where nexus is working as a Docker proxy, its possible to end up in the situation where Nexus isn't running and k8s tries to first create other pods, which will fail to start as they can't pull from the Nexus Docker Repository.
The easy solution is to give Nexus a high priority class name so that k8s will schedule it before all other pods and thus ensure they can start properly.