- hosts: new-node
  roles:
  - { role: chrony, when: "hostvars[groups.deploy[0]]['NTP_ENABLED'] == 'yes'" } 
  - prepare
  - docker
  - kube-node
  # 根据hosts中配置，以下两种网络只会安装一种
  - { role: calico, when: "CLUSTER_NETWORK == 'calico'" }
  - { role: cilium, when: "CLUSTER_NETWORK == 'cilium'" }
  - { role: flannel, when: "CLUSTER_NETWORK == 'flannel'" }
  - { role: kube-router, when: "CLUSTER_NETWORK == 'kube-router'" }