在大量主机上管理authorized_keys

---
- name: Manage authorized_keys
  hosts: all
  vars:
    authorized_keys_file: /root/.ssh/authorized_keys
    authorized_keys:
      - "{{ lookup('file', '~/keys/id_rsa.pub') }}"
  tasks:
    - name: Ensure .ssh directory exists
      file:
        path: "{{ authorized_keys_file | dirname }}"
        state: directory
        owner: root
        group: root
        mode: 0700

    - name: Add authorized_keys
      lineinfile:
        path: "{{ authorized_keys_file }}"
        line: "{{ item }}"
        state: present
      with_items: "{{ authorized_keys }}"

[all]
192.168.1.100
192.168.1.101

ansible-playbook authorized_keys.yml