Merge pull request #187 from teutostack/openstack-integration

inventory/group_vars/all.yml

roles/kubernetes/master/templates/kube-apiserver.j2

roles/kubernetes/master/templates/kube-apiserver.service.j2

roles/kubernetes/node/templates/kubelet.j2

roles/kubernetes/node/templates/kubelet.service.j2

roles/kubernetes/preinstall/defaults/main.yml

roles/kubernetes/preinstall/tasks/main.yml

...ubernetes/preinstall/tasks/openstack-credential-check.yml

...kubernetes/preinstall/templates/openstack-cloud-config.j2