ansible - 仅当主机不属于组时才运行任务

Question

仅当当前剧本的主机不属于某个组时，我才希望能够运行 ansible 任务。在半伪代码中:

- name: my command
  command: echo stuff
  when: "if {{ ansible_hostname }} not in {{ ansible_current_groups }}"

我应该怎么做？

Answer 1

这是另一种方法:

- name: my command
  command: echo stuff
  when: "'groupname' not in group_names"

group_names 是一个神奇的变量，如下所示:https://docs.ansible.com/ansible/latest/reference_appendices/special_variables.html :

group_names is a list (array) of all the groups the current host is in.