如何在“value”不是ansible事实的情况下运行任务

- name: Run task if "value" is not ansible fact
  command: your_command
  when: value is not ansible_facts

- name: Define variable if "value" is not ansible fact
  set_fact:
    my_value: your_value
  when: value is not ansible_facts

- name: Run task using variable
  command: your_command
  when: my_value is defined

- name: Get value from external file
  set_fact:
    my_value: "{{ lookup('file', '/path/to/external_file') }}"
  when: value is not ansible_facts

- name: Run task using value from external file
  command: your_command
  when: my_value is defined