【Ansible】Ansible自动化运维工具之playbook剧本搭建LNMP架构

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一、playbooks 分布式部署 LNMP

1. 环境配置

ansible服务器    192.168.145.15
nginx  服务器    192.168.145.30
mysql  服务器    192.168.145.45
php    服务器    192.168.145.60

2. 安装 ansble

#管理端安装 ansible
yum install -y epel-release			#先安装 epel 源
yum install -y ansible

#配置密钥对验证
ssh-keygen -t rsa
vim /etc/ssh/ssh_config
-----35行，取消注释-----
StrictHostKeyChecking nosshpass -p '123' ssh-copy-id root@192.168.145.30
sshpass -p '123' ssh-copy-id root@192.168.145.45
sshpass -p '123' ssh-copy-id root@192.168.145.60

#配置主机清单
cd /etc/ansiblevim hosts       
[nginx]		
192.168.145.30	
[mysql]
192.168.145.45
[php]
192.168.145.60

#创建一个目录用来存放 playbooks 的文件
cd /etc/ansible/
mkdir playbooks

3. 安装 nginx

3.1 准备 nginx 相关文件

[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=1
enabled=1
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true[nginx-mainline]
name=nginx mainline repo
baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/
gpgcheck=1
enabled=0
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true

#准备nginx源，进行yum安装
cd /opt/
mv nginx.repo /etc/ansible/playbooks/
cd /etc/ansible/playbooks/

#配置 nginx 支持 PHP 解析
cd /etc/nginx/conf.dvim default.conflocation / {root   /usr/share/nginx/html;index  index.php index.html index.htm;}
......location ~ \.php$ {root           html;fastcgi_pass   192.168.145.60:9000;fastcgi_index  index.php;fastcgi_param  SCRIPT_FILENAME  /usr/share/nginx/html$fastcgi_script_name;  # $document_root 和 root 属性一样include        fastcgi_params;}cp default.conf /etc/ansible/playbooks/default.conf.j2

#准备php文件
vim /etc/ansible/playbooks/index.php
<?php
phpinfo();
?>
#测试mysql是否能连接成功
vim /etc/ansible/playbooks/test.php
<?php
$link=mysqli_connect('192.168.145.45','root','Admin@123');
if($link) echo "<h1>Success!!</h1>";
else echo "Fail!!";
?>

3.2 编写 lnmp.yaml 的 nginx 部分

vim lnmp.yaml
- name: nginx playhosts: nginxremote_user: roottasks:- name: disable selinuxcommand: '/sbin/setenforce 0'ignore_errors: true- name: disable firewalldservice: name=firewalld state=stopped- name: copy nginx yum repo filecopy: src=nginx.repo  dest=/etc/yum.repos.d/- name: install nginxyum: name=nginx state=latest- name: copy index.phpcopy: src=index.php  dest=/usr/share/nginx/html- name: copy nginx template configuration filetemplate: src=default.conf.j2  dest=/etc/nginx/conf.d/default.conf- name: start nginxservice: name=nginx state=started enabled=yes

3.3 测试 nginx

#在ansible服务器运行
cd /etc/ansible/playbooks/
ansible-playbook lnmp.yaml --syntax-check    #检查yaml文件的语法是否正确
ansible-playbook lnmp.yaml

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#在 nginx 服务器查看
systemctl status nginx

4. 安装 mysql

4.1 准备 mysql 相关文件

#安装 mysql 5.7
cd /etc/yum.repos.d
wget -