Add task to clean /etc/hosts
Add task to clean /etc/hosts

When you create VM in OpenStack, its hostname pointed to localhost is added
to /etc/hosts which may result in deployment problems.

kenjones-cisco/kubernetes-ansible,xshyamx/mantl-kubernetes,CiscoCloud/mantl-kubernetes,CiscoCloud/mantl-kubernetes,xshyamx/mantl-kubernetes,ldejager/kubernetes-ansible,ldejager/kubernetes-ansible,kenjones-cisco/kubernetes-ansible,CiscoCloud/mantl-kubernetes,CiscoCloud/kubernetes-ansible,CiscoCloud/kubernetes-ansible,xshyamx/mantl-kubernetes,CiscoCloud/kubernetes-ansible