ansible-playbook一键化部署实战篇

一.主机信息提取

1.创建hostinfo.yml文件

[devops@server4 ansible]$ vim hostinfo.yml 
---
- hosts: all
  tasks:
    - name: create infofile
      template:
        src: templates/info.j2
        dest: /mnt/hostinfo

2.在templates创建模版info.j2

[devops@server4 ansible]$ cd templates/
[devops@server4 templates]$ vim info.j2
主机名: {
  
  { ansible_facts['hostname'] }}
根分区大小: {
  
  { ansible_facts['devices']['dm-0']['size'] }}
系统内核: {
  
  { ansible_facts['kernel']  }}
系统版本: {
  
  { ansible_facts['distribution_version'] }}
DNS: {
  
  { ansible_facts['dns']['nameservers'] }}

3.语法检测

[devops@server4 ansible]$ ansible-playbook hostinfo.yml --syntax-check

playbook: hostinfo.yml

4.推送

[devops@server4 ansible]$ ansible-playbook hostinfo.yml