6五、ansible实战

时间 2019-12-19

标签 ansible 实战繁體版

原文原文链接

一、安装ansiblenode

rpm -ivh https://mirrors.aliyun.com/epel/6Server/x86_64/Packages/e/epel-release-6-8.noarch.rpmmysql

yum -y install ansibleweb

ssh-keygen -t rsa -P ''sql

ssh-copy-id -i /root/.ssh/id_rsa.pub root@node1.ha.comshell

ssh-copy-id -i /root/.ssh/id_rsa.pub root@node2.ha.comapache

ssh-copy-id -i /root/.ssh/id_rsa.pub root@node3.ha.comssh

ssh-copy-id -i /root/.ssh/id_rsa.pub root@node4.ha.comide

二、ansible主机配置ui

grep -v ^# /etc/ansible/hosts |grep -v ^$spa

[web]

node1.ha.com

node2.ha.com

[mysql]

node3.ha.com

node4.ha.com

三、ansible简单应用

查看命令帮助

ansible-doc -s group

检测主机是否在线

ansible all -m ping

在远程主机执行命令并返回结果[-m command]可省

ansible all [-m command]-a 'date'

复制文件

ansible mysql -m copy -a "src=/etc/sysconfig/network-scripts/ifcfg-eth0 dest=/tmp"

crontab计划任务

ansible all -m cron -a 'name="custom job" minute=*/3 hour=* day=* month=* weekday=* job="usr/sbin/ntpdate ntp2.aliyun.com"'

建立用户组和用户

ansible all -m group -a "gid=306 system=yes name=mysql"

ansible all -m user -a "group=mysql name=mysql uid=306 shell=/sbin/nologin"

删除用户和用户组

ansible all -m user -a "state=absent name=mysql"

ansible all -m group -a "state=absent name=mysql"

yum安装软件

ansible all -m yum -a "state=present name=httpd"

启动服务

ansible all -m service -a "state=started name=httpd enabled=yes"

中止服务

ansible all -m service -a "state=stopped name=httpd enabled=no"

yum卸载软件

ansible web -m yum -a "state=removed name=httpd"

四、ansible高级应用ansible-playbook

安装httpd，经过控制机复制配置文件到被控制机，并重启被控制器上的httpd服务

cat httpd.yaml

- hosts : all

remote_user : root

tasks :

- name : ensure apache latest version

yum : state=latest name=httpd

- name : apache configure file

copy : src=/root/httpd.conf dest=/etc/httpd/conf/httpd.conf force=yes

notify :

- restart httpd

handlers :

- name : restart httpd

service : name=httpd state=restarted

ansible-playbook httpd.yaml

ansible all -a 'rpm -q httpd'