playbooks 分布式部署 LNMP

1、环境配置

• ansible 服务器 192.168.10.10
• nginx 服务器 192.168.10.20
• mysql 服务器 192.168.10.21
• php 服务器 192.168.10.22

2、安装 ansble

#192.168.10.10节点
yum install -y epel-release	 #先安装 epel 源
yum install -y ansible

配置主机清单

cd /etc/ansible
vim hosts       
[nginx]
192.168.10.20

[mysql]
192.168.10.21

[php]
192.168.10.22

设置免密登录

 #3、ansible默认使用ssh连接，所以管理前要设置免密登录
 #配置密钥对验证
 ssh-keygen -t     #一路回车，生成密钥文件
 ​
 vim /etc/ssh/ssh_config      #修改ssh服务端和ssh客户端配置文件
 StrictHostKeyChecking no     #35行，取消注释，将ask修改为no，开启免交互
 ​
 systemctl restart sshd       #重启sshd
 
 
 
//配置密钥对验证
ssh-keygen -t rsa		#一路回车，使用免密登录
sshpass -p 'root的密码' ssh-copy-id root@192.168.10.20
sshpass -p 'root的密码' ssh-copy-id root@192.168.10.21
sshpass -p 'root的密码' ssh-copy-id root@192.168.10.22

3、配置安装nginx

配置nginx相关文件

#配置 nginx 支持 PHP 解析
vim nginx.conf.j2

    server {
        listen       {{server_ip}}:{{http_port}};
        server_name  {{host_name}};

        charset utf-8;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.php index.html;
        }


......
        location ~ \.php$ {
            root           html;
            fastcgi_pass   192.168.10.22:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  /usr/local/nginx/html$fastcgi_script_name;
            include        fastcgi_params;
        }

编写 lnmp.yaml 的 nginx 部分

- name: nginx play
  hosts: webservers
  remote_user: root
  gather_facts: false
  vars:
  - nginx_addr: 192.168.10.20
  - nginx_port: 80
  - nginx_hostname: www.xy101.com
  - root_dir: /var/www/html
  - php_addr: 192.168.10.22
  - php_port: 9000
  tasks:
  - name: disable firewalld
  - service: name=firewalld state=stopped enabled=no
  - name: disable selinux
    command: 'setenforce 0'
    ignore_errors: true
  - name: copy nginx repo
    copy: src=/opt/nginx/nginx.repo dest=/etc/yum.repos.d/
  - name: install nginx
    yum: name=nginx state=latest
  - name: create root  dir
    file: path={{root_dir}} state=directory
  - name: copy nginx config template file
    template: src=/opt/nginx/nginx.conf.j2 dest=/etc/nginx/nginx.conf
    notify: 'reload nginx'
  - name: create nfs config
    copy: content="{{root_dir}} 192.168.10.0/24(rw,rsync,no_root_squash)" dest=/etc/exports
  - name: restart rpcbind,nfs,nginx
    service: name={{item}} state=restarted enabled=yes
    with_items:
    - rpcbind
    - nfs
    - nginx
  handlers:
  - name: reload nginx
    service: name=nginx state=reloaded

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

#在 nginx 服务器查看
systemctl status nginx
netstat -lntp | grep nginx

4、安装 mysql

mysql相关文件配置

准备mysql初始化脚本文件

编写 lnmp.yaml 的 mysql 部分

- name: mysql play
  hosts: dbservers
  remote_user: root
  gather_facts: false
  tasks:
  - name: disable mysql_server firewalld
    srvice: name=firewalld state=stopped enabled=no
  - name: disable mysql_server selinux
    command: 'setenforce 0'
    ignore_errors: true
  - name: remove mariadb
    yum: name=mariadb* state=absent
  - name: copy mysql repo
    copy: src=/opt/mysql/mysql-community.repo dest=/etc/yum.repos.d/
  - name: modify mysql repo
    replace: path=/etc/yum.repos.d/mysql-community.repo regexp="gpgcheck=1" replace="gpgcheck=0"
  - name: install mysql
    yum: name=mysql-server state=present
  - name: start mysql
    service: name=mysql state=started enable=yes
  - name: init mysql
    script: '/opt/mysql/mysql-init.sh'

5、安装php

- name: php play
  hosts: phpservers
  remote_user: root
  gather_facts: false
  vars:
  - php_username: nginx
  - php_addr: 192.168.10.22:9000
  - nginx_addr: 192.168.10.20
  - root_dir: /var/www/html
  tasks:
  - name: disable php_server firewalld
    service: name=firewalld state=stopped
  - name: disable php_server selinux
    command: 'setenforce 0'
  - name: unarchive php tar pkg
    unarchive: copy=yes src=/opt/php/php.tar.gz dest=/mnt/
  - name: copy local repo
    copy: src=/opt/php/local.repo dest=/etc/yum.repos.d/
  - name: create repo
    shell: 'createrepo /mnt && yum clean all && yum makecache'
  - name: install php
    yum: name=php72w,php72w-cli,php72w-common,php72w-devel,php72w-embedded,php72w-gd,php72w-mbstring,php72w-pdo,php72w-xml,php72w-fpm,php72w-mysqlnd,php72w-opcache,php72w-ldap,php72w-bcmath state=present
  - name: create php user
    user: name={{php_username}} shell=/sbin/nologin create_home=no
  - name: modify php.ini
    replace: path=/etc/php.ini regexp=";date.timezone =" replace="date.timezone = Asia/Shanghai"
  - name: modify user and group in www.conf
    replace: path=/etc/php-fpm.d/www.conf regexp="127.0.0.1" replace="{{nginx_addr}}"
    notify: "reload php-fpm"
  - name: start php-fpm
    service name=php-fpm state=started enabled=yes
  - name: create www root dir
    file: path={{root_dir}} state=directory
  - name: mount nfs
    mount: src="{{nginx_addr}}:{{root_dir}}" path={{root_dir}} fstype=nfs state=mounted opts="defaults,_netdev"
  handlers:
  - name: reload php-fpm
    service: name=php-fpm state=reloaded

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