抽出变量
稍细心观察下方代码,你就会发现其实这一段代码除了name属性其他都是重复的:
---
- hosts: static_page
tasks:
- name: Ensure git installed
sudo: yes
apt:
name: git
state: present
- name: Ensure apache2 installed
sudo: yes
apt:
name: apache2
state: present
所以,需要把安装的两个工具名:git和apache2,作为参数抽出去:
---
- hosts: static_page
vars:
packages:
- git
- apache2
tasks:
- name: Ensure packages installed
sudo: yes
apt:
name: "{{ item }}"
state: present
with_items: "{{ packages }}"
其中with_items和item都是ansible中的关键字,这里就会遍历vars里面的packages具体内容,就相当于Java中的: For item : with_items(packages)。 抽出变量后,记得要重新执行一次,以验证是否有语法错误。