# [optional] to synchronize system time of nodes with 'chrony' 
- hosts:
  - kube-master
  - kube-node
  - etcd
  - ex-lb
  - chrony
  roles:
  - { role: chrony, when: "groups['chrony']|length > 0" }

# to create CA, kubeconfig, kube-proxy.kubeconfig etc.
- hosts: localhost
  roles:
  - deploy

# prepare tasks for all nodes
- hosts:
  - kube-master
  - kube-node
  - etcd
  roles:
  - prepare