kubespray/roles/kubernetes/node/tasks/gen_tokens.yml

---
- name: tokens | copy the token gen script
  copy:
    src=kube-gen-token.sh
    dest={{ kube_script_dir }}
    mode=u+x

- name: tokens | generate tokens for master components
  command: "{{ kube_script_dir }}/kube-gen-token.sh {{ item[0] }}-{{ item[1] }}"
  environment:
    TOKEN_DIR: "{{ kube_token_dir }}"
  with_nested:
    - [ "system:kubectl" ]
    - "{{ groups['kube-master'] }}"
  register: gentoken
  changed_when: "'Added' in gentoken.stdout"

- name: tokens | generate tokens for node components
  command: "{{ kube_script_dir }}/kube-gen-token.sh {{ item[0] }}-{{ item[1] }}"
  environment:
    TOKEN_DIR: "{{ kube_token_dir }}"
  with_nested:
    - [ 'system:kubelet' ]
    - "{{ groups['kube-node'] }}"
  register: gentoken
  changed_when: "'Added' in gentoken.stdout"