For consistancy with kubernetes services we should use the same hostname for nodes, which is 'ansible_hostname'. Also fixing missed 'kube-node' in templates, Calico is installed on 'k8s-cluster' roles, not only 'kube-node'.
New calicoctl does not support --detach=false option, so we should use a recommended way to run calico-node service: http://docs.projectcalico.org/v2.0/usage/configuration/as-service Closes #674, #675