建立於 2025-06-05 更新於 2026-09-02
# ansible

Handlers

在 Ansible 中，你可以根據狀態是否變化，來觸發一些額外的操作。

範例


---

- name: Example of no-handler rule
  hosts: localhost
  tasks:
      - name: Register result of a task
        ansible.builtin.lineinfile:
            dest: '/tmp/example.txt'
            line: 'Hi from Ansible!'
        check_mode: true # 根據檔案是否有 Hi from Ansible! 字串回傳 changed 屬性（沒有的話回傳 true）
        notify: # 如果 changed 屬性為 true 則依序執行下面兩個操作
            - Second command to run
            - Third command to run

  handlers:
      - name: Second command to run
        ansible.builtin.debug:
            msg: The placeholder file was modified!

      - name: Third command to run
        ansible.builtin.debug:
            msg: The placeholder file was modified!

參考資料