baremetal tweaks

* allow installs to not have hostname overriden with fqdn from inventory
* calico-config no longer requires local as and will default to global
* when cloudprovider is not defined, use the inventory_hostname for cni-calico
* allow reset to not restart network (buggy nodes die with this cmd)
* default kube_override_hostname to inventory_hostname instead of ansible_hostname

roles/bootstrap-os/defaults/main.yml

@@ -2,3 +2,5 @@
 pip_python_coreos_modules:
   - httplib2
   - six
+
+override_system_hostname: true