1.yaml
格式要求
冒号后面必须有空格
等号后面不能有空格
-后面也要有空格
严格对齐
2.setup
ansible_all_ipv4_addresses # ipv4的所有地址 ansible_all_ipv6_addresses # ipv6的所有地址 ansible_date_time # 获取到控制节点时间 ansible_default_ipv4 # 默认的ipv4地址 ansible_distribution # 系统 ansible_distribution_major_version # 系统的大版本 ansible_distribution_version # 系统的版本号 ansible_domain #系统所在的域 ansible_env #系统的环境变量 ansible_hostname #系统的主机名 ansible_fqdn #系统的全名 ansible_machine #系统的架构 ansible_memory_mb #系统的内存信息 ansible_os_family # 系统的家族 ansible_pkg_mgr # 系统的包管理工具 ansible_processor_cores #系统的cpu的核数(每颗) ansible_processor_count #系统cpu的颗数 ansible_processor_vcpus #系统cpu的总个数=cpu的颗数*CPU的核数 ansible_python # 系统上的python ansible cache -m setup -a 'filter=*processor*' # 用来搜索
如果出现
- hosts: db tasks: - name: zzgbgn dong: zzdbgn when: zhanzhe - name: pzhegbgn dong: pzhedbgn when: pazhe
条件判断
when: 条件==“条件”
不同的系统
不同的版本
不同的环境
不同的用户
- hosts: db remote_user: root tasks: - name: createfile copy: content="大弦嘈嘈如急雨" dest=/tmp/a.txt when: a=="3" - name: cratefile copy: content="小弦切切如私语" dest=/tmp/a.txt when: a=="4"
Ubuntu安装包的方式是apt-get
标签 tags
- hosts: db tasks: - name: wadong tieqiao: wadong - name: tk dong: tk tags: tk
- hosts: web tasks: - name: installnginx yum: name=nginx - name: copyfile copy: src=/etc/nginx/nginx.conf dest=/etc/nginx/nginx.conf tags: copyfile - name: start service: name=nginx state=started
标签的传递
ansible-playbook -t copyfile p7.yml
循环 with_item
一次性创建多个
- hosts: gb tasks: - name: gbqc dong: {{ item }} with_items: - qbqc - cyf - ssfj
- hosts: web tasks: - name: crateuser user: name={{item}} with_items: - alex20 - alex21 - alex22 ~
- hosts: web tasks: - name: crateuser user: name={{item}} with_items: - alex30 - alex31 - alex32 - name: crategroup group: name={{item}} with_items: - wulaoshi20 - wulaoshi21 - wulaoshi22 ~
嵌套循环 放在字典中,通过点来取值
- hosts: web tasks: - name: crategroup group: name={{item}} with_items: - wulaoshi30 - wulaoshi31 - wulaoshi32 - name: createuser user: name={{item.name}} group={{item.group}} with_items: - {'name':alex40,'group':wulaoshi30} - {'name':alex41,'group':wulaoshi31} - {'name':alex42,'group':wulaoshi32}
模版 template
- hosts: web tasks: - name: installredis yum: name=redis - name: copyfile template: src=/etc/redis.conf dest=/etc/redis.conf - name: start service: name=redis state=started 配置文件: bind {{ ansible_default_ipv4.address }}
copy和template的区别
copy模块不替代参数
template 模块替代参数
- hosts: web tasks: - name: installredis yum: name=redis - name: copyfile template: src=redis.conf dest=/etc/redis.conf - name: start service: name=redis state=started
注意:写相对路径 在当前目录下新建一个templates目录,然后把文件放在templates目录里面
handlers
修改配置文件
- hosts: web tasks: - name: installredis yum: name=redis - name: copyfile template: src=redis.conf dest=/etc/redis.conf tags: copyfile notify: restart - name: start service: name=redis state=started handlers: - name: restart service: name=redis state=restarted
3.roles
目录清晰
可以相互调用
roles文件夹
setenforce 0 #用来临时关闭selinux iptables -F # 临时关闭防火墙 /etc/selinux/config # 永久关闭