（1）hosts文件
[task]
IP地址1 hostname=主机名1
IP地址2 hostname=主机名2
IP地址3 hostname=主机名3
[task:vars]
ansible_become=yes
ansible_become_method=sudo
ansible_become_user=root
ansible_become_password=密码
ansible_user=用户
ansible_password=密码
ansible_python_interpreter=/usr/bin/python
（2）yaml文件
---
- name: 设置主机名
hosts: all
become: yes
tasks:
- name: 修改 /etc/hostname 文件
lineinfile:
path: /etc/hostname
line: "{{ hostname }}"
create: yes
- name: 设置主机名
command: hostnamectl set-hostname "{{ hostname }}"
- name: 更新当前 shell 会话中的主机名
shell: |
hostname "{{ hostname }}"
标签：name,批量,hostname,主机名,ansible,IP地址,become From： https://www.cnblogs.com/libin-linux/p/18410198