- hosts: all
  roles:
    - { role: utils/detect-os }

- hosts: primary_master_node
  roles:
    - { role: upgrade/primary_master_node }
    - { role: utils/k8s/addons }

- hosts: master_nodes
  roles:
    - { role: upgrade/master_nodes }

- hosts: worker_nodes
  roles:
    - { role: upgrade/worker_nodes }

- hosts: primary_master_node:master_nodes:worker_nodes
  roles:
    - { role: utils/gpu-init }