ansible 使用其他 roles 内的变量

ansible 的 set_fact 模块

ansible 的 module 中有一个 set_fact 模块可以用于处理变量的跨 roles 使用。通过 ansible-doc set_fact 可以查看详细使用说明

example

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19


# role 1
- name: get token
  become: yes
  ansible.builtin.command:
    cmd: kubeadm token create --print-join-command
  register: joinToken

- name: set vars to hostvars
  set_fact:
    token: "{{ joinToken }}"

# role 2
- name: join k8s cluster
  become: yes
  vars:
    joinToken: "{{ hostvars['master']['token'] }}"
  ansible.builtin.command:
    cmd: "{{ joinToken.stdout }}"
    creates: /etc/kubernetes/kubelet.conf

Reference

How can I persist an ansible variable across ansible roles?