搭建高可用wordpress(keepalived+lvs)

时间  2019-11-07
标签 搭建 可用 wordpress keepalived+lvs keepalived lvs 栏目 Wordpress 繁體版
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搭建高可用wordpress(keepalived+lvs)

搭建高可用wordpress(keepalived+lvs)

搭建MYSQL主从

分别在两台MySQL主机上安装MySQL
1.使用一键安装脚本安装MySQLphp

[root@master ~]# tar xf mysql-5.6.34-onekey-install.tar.gz 
[root@master ~]# vim mysql-install.sh

配置MySQL-Master

1.修改配置文件html

[root@master ~]# vim /etc/my.cnf
[mysqld]
datadir=/data/mysql
log-bin=/data/bin/mysql-bin
binlog-format=row
server-id=1

2.建立二进制日志目录修改权限mysql

[root@master ~]# mkdir /data/bin
[root@master ~]# chmod -R 700 /data/bin
[root@master ~]# chown -R mysql.mysql /data/bin

3.启动MySQLlinux

[root@master ~]# service mysqld start 
Starting MySQL... SUCCESS!

4.受权主从复制帐户nginx

[root@master ~]# mysql -e "GRANT REPLICATION SLAVE ON *.* TO 'repluser'@'192.168.27.%' IDENTIFIED BY '111111';"

5.查看二进制日志位置c++

[root@master~]# mysql -e "SHOW MASTER LOGS;"
+------------------+-----------+
| Log_name         | File_size |
+------------------+-----------+
| mysql-bin.000001 |       334 |
+------------------+-----------+

配置MySQL-Slave

1.修改配置文件web

[root@slave ~]# vim /etc/my.cnf
[mysqld]
server-id=2
read-only

2.启动服务sql

[root@slave ~]# service mysqld start

3.change master to数据库

mysql> CHANGE MASTER TO MASTER_HOST='192.168.27.31', MASTER_USER='repluser', MASTER_PASSWORD='111111', MASTER_PORT=3306, MASTER_LOG_FILE='mysql-bin.000001', MASTER_LOG_POS=1;

4.启动复制线程vim

mysql> START SALVE;

测试

在主服务器上导入测试数据库

[root@master ~]# mysql < hellodb_innodb.sql

查看从服务器是否复制数据

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| hellodb            |
| mysql              |
| performance_schema |
| test               |
+--------------------+
5 rows in set (0.00 sec)

主从配置完毕

配置web服务器

分别在2台web服务器上安装nginx和php-fpm
安装编译所需的各类软件

yum install -y gcc gcc-c++ glibc glibc-devel pcre pcre-devel openssl openssl-devel systemd-devel bzip2 vim lrzsz tree screen lsof tcpdump wget ntpdate net-tools iotop bc zip unzip nfs-utils expat-devel bison bison-devel zlib-devel libcurl-devel libarchive-devel boostdevel cmake ncurses-devel gnutls-devel libxml2-devel libevent-devel libaio-devel

编译安装nginx

1.解压nginx源码包

[root@web1 ~]# tar xf nginx-1.14.2.tar.gz

2.检查编译环境

[root@web1 ~]# cd nginx-1.14.2
[root@web1 nginx-1.14.2]# ./configure --prefix=/apps/nginx --user=nginx --group=nginx --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-http_stub_status_module  --with-http_gzip_static_module --with-pcre --with-stream --with-stream_ssl_module --with-stream_realip_module

3.编译安装

[root@web1 nginx-1.14.2]# make && make install

4.为应用程序文件创建软链接

[root@web1 nginx-1.14.2]# ln -s /apps/nginx/sbin/nginx /sbin/nginx

5.配置服务启动脚本

[root@web1 nginx-1.14.2]# vim /lib/systemd/system/nginx.service

[Service]
Type=forking
PIDFile=/apps/nginx/logs/nginx.pid
ExecStart=/apps/nginx/sbin/nginx -c /apps/nginx/conf/nginx.conf
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s TERM $MAINPID

[Install]
WantedBy=multi-user.target

6.建立启动用户

[root@web1 nginx-1.14.2]# useradd -u2000 www

7.修改配置文件

[root@web1 nginx-1.14.2]# vim /apps/nginx/conf/nginx.conf
user  www;              #服务启动时以www用户为工做进程
pid        /apps/nginx/logs/nginx.pid;

8.启动服务

[root@web1 nginx-1.14.2]# nginx

编译安装php-fpm

1.解压缩源码包

[root@web1 ~]# tar xf php-7.1.30.tar.gz

2.检查编译环境

[root@web1 ~]# cd php-7.1.30
[root@web1 php-7.1.30]# ./configure --prefix=/apps/php --enable-mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-openssl --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d --enable-mbstring --enable-xml --enable-sockets --enable-fpm --enable-maintainer-zts --disable-fileinfo

3.编译模块并复制模块到指定目录

[root@web1 php-7.1.30]# make && make install

4.复制环境配置文件，修改时区

[root@web1 php-7.1.30]# cp php.ini-production /etc/php.ini
[root@web1 php-7.1.30]# sed -i '/;date.tim/s@.*@data.timezone = "Asia/Shanghai"@' /etc/php.ini

5.配置服务启动脚本

[root@web1 php-7.1.30]# cp sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
[root@web1 php-7.1.30]# chmod +x /etc/init.d/php-fpm
[root@web1 php-7.1.30]# chkconfig --add php-fpm

6.复制模板配置文件

[root@web1 php-7.1.30]# cp /apps/php/etc/php-fpm.conf.default /apps/php/etc/php-fpm.conf
[root@web1 php-7.1.30]# cp /apps/php/etc/php-fpm.d/www.conf.default /apps/php/etc/php-fpm.d/www.conf

配置nginx+php

1.修改nginx主配置文件导入其余配置文件

[root@web1 ~]# vim /apps/nginx/conf/nginx.conf
include /apps/nginx/conf/server/*.conf;

2.建立新的server段配置文件

[root@web1 ~]# mkdir /apps/nginx/conf/server
[root@web1 ~]# vim /apps/nginx/conf/server/mylinuxops.conf
server {
        server_name www.mylinuxops.com;
        listen 80;
        location / {
            root /data/www;
            index index.php index.html;
        }
        location ~ \.php$ {
            root           /data/www;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
        }
}

3.修改php-fpm配置文件

[root@web1 ~]# vim /apps/php/etc/php-fpm.d/www.conf
user = www
group = www
listen = 127.0.0.1:9000

4.重启服务

[root@web1 ~]# nginx -s reload
[root@web1 ~]# service php-fpm start
Starting php-fpm  done

测试

建立测试页面

[root@web1 ~]# mkdir /data/www
[root@web1 ~]# vim /data/www/index.php
<?php
phpinfo();
?>

浏览器访问
搭建高可用wordpress(keepalived+lvs)

配置keepalived+lvs

配置keepalived+lvs1

1.安装keepalived

[root@lvs1 ~]# yum install keepalived -y

2.修改配置文件

[root@lvs1 ~]# cat /etc/keepalived/keepalived.conf 
! Configuration File for keepalived

global_defs {
     root@mylinuxops.com
   }
   notification_email_from root@mylinuxops.com
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id s1.mylinuxops.com
   vrrp_skip_check_adv_addr
   vrrp_iptables
   #vrrp_strict
   vrrp_garp_interval 0
   vrrp_gna_interval 0
}

vrrp_instance VI_1 {
    state MASTER
    interface ens33
    virtual_router_id 27
    priority 100
    advert_int 2
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.27.100 dev ens33 label ens33:0
        192.168.27.101 dev ens33 label ens33:1
    }
    unicast_src_ip 192.168.27.11
    unicast_peer {
    192.168.27.12
    }
}

virtual_server 192.168.27.100 80 {
    delay_loop 5
    lb_algo wrr
    lb_kind DR
    protocol TCP

    real_server 192.168.27.21 80 {
        weight 1
    TCP_CHECK {
        connect_port 80
        connect_timeout 5
        retry 3
        delay_before_retry 3
    }
    }
    real_server 192.168.27.22 80 {
    weight 1
        TCP_CHECK {
            connect_port 80
            connect_timeout 5
            retry 3
            delay_before_retry 3
        }   

    }
}

virtual_server 192.168.27.101 3306 {
    delay_loop 5
    lb_algo wrr
    lb_kind DR
    protocol TCP

    real_server 192.168.27.31 3306 {
        weight 1
        TCP_CHECK {
            connect_port 3306
            connect_timeout 5
            retry 3
            delay_before_retry 3
        }
    }

}

重启服务

[root@lvs1 ~]# systemctl restart keepalived

查看是否存在lvs规则

[root@lvs1 ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  192.168.27.100:80 wrr
  -> 192.168.27.21:80             Route   1      0          0         
  -> 192.168.27.22:80             Route   1      0          0         
TCP  192.168.27.101:3306 wrr
  -> 192.168.27.31:3306           Route   1      0          1

配置keepalived+lvs2

[root@lvs2 ~]# cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived

global_defs {
     root@mylinuxops.com
   }
   notification_email_from root@mylinuxops.com
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id s1.mylinuxops.com
   vrrp_skip_check_adv_addr
   vrrp_iptables
   #vrrp_strict
   vrrp_garp_interval 0
   vrrp_gna_interval 0
}

vrrp_instance VI_1 {
    state BACKUP
    interface ens33
    virtual_router_id 27
    priority 80
    advert_int 2
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.27.100 dev ens33 label ens33:0
        192.168.27.101 dev ens33 label ens33:1
    }
    unicast_src_ip 192.168.27.12
    unicast_peer {
        192.168.27.11
    }
}

virtual_server 192.168.27.100 80 {
    delay_loop 5
    lb_algo wrr
    lb_kind DR
    protocol TCP

    real_server 192.168.27.21 80 {
        weight 1
        TCP_CHECK {
            connect_port 80
            connect_timeout 5
            retry 3
            delay_before_retry 3
        }
    }
    real_server 192.168.27.22 80 {
        weight 1
        TCP_CHECK {
            connect_port 80
            connect_timeout 5
            retry 3
            delay_before_retry 3
        }

    }
}

virtual_server 192.168.27.101 3306 {
    delay_loop 5
    lb_algo wrr
    lb_kind DR
    protocol TCP

    real_server 192.168.27.31 3306 {
        weight 1
        TCP_CHECK {
            connect_port 3306
            connect_timeout 5
            retry 3
            delay_before_retry 3
        }
    }

}

重启服务

[root@lvs2 ~]# systemctl restart keepalived

查看是否存在lvs规则

[root@lvs1 ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  192.168.27.100:80 wrr
  -> 192.168.27.21:80             Route   1      0          0         
  -> 192.168.27.22:80             Route   1      0          0         
TCP  192.168.27.101:3306 wrr
  -> 192.168.27.31:3306           Route   1      0          1

在后端web服务器及MySQL-master上配置vip

在web一、web二、mysql分别执行lvs_dr_rs脚本

[root@web1 ~]# bash lvs_dr_rs.sh start

脚本内容

#!/bin/bash
vip=192.168.27.100      #mysql将地址改成 192.168.27.101
mask='255.255.255.255'
dev=lo:1

case $1 in
start)
    echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
    echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
    echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
    echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
    ifconfig $dev $vip netmask $mask #broadcast $vip up
    #route add -host $vip dev $dev
    echo "The RS Server is Ready!"
    ;;
stop)
    ifconfig $dev down
    echo 0 > /proc/sys/net/ipv4/conf/all/arp_ignore
    echo 0 > /proc/sys/net/ipv4/conf/lo/arp_ignore
    echo 0 > /proc/sys/net/ipv4/conf/all/arp_announce
    echo 0 > /proc/sys/net/ipv4/conf/lo/arp_announce
    echo "The RS Server is Canceled!"
    ;;
*) 
    echo "Usage: $(basename $0) start|stop"
    exit 1
    ;;
esac

测试

分别在后端服务器上建立测试页面

[root@web1 ~]# echo "<h1>`hostname`</h1>" > /data/www/index.html

客户端上测试

[root@localhost ~]# curl www.mylinuxops.com/index.html
<h1>web1</h1>
[root@localhost ~]# curl www.mylinuxops.com/index.html
<h1>web2</h1>

暂停lvs1上的keepalived测试vip漂移

[root@lvs1 ~]# systemctl stop keepalived

查看lvs2上是否有vip

[root@lvs2 ~]# ifconfig

ens33:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.27.100  netmask 255.255.255.255  broadcast 0.0.0.0
        ether 00:0c:29:00:a5:1d  txqueuelen 1000  (Ethernet)

测试访问是否正常

[root@localhost ~]# curl www.mylinuxops.com/index.html
<h1>web2</h1>
[root@localhost ~]# curl www.mylinuxops.com/index.html
<h1>web1</h1>

测试数据链接

[root@localhost ~]# mysql -urepluser -p111111 -h192.168.27.101 -P3306
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MySQL connection id is 143
Server version: 5.6.34-log MySQL Community Server (GPL)

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

建立存放图片的nfs服务器

建立出须要共享的目录，并对其进行配置

[root@image ~]# mkdir /data/upload
[root@image ~]# vim /etc/exports
/data/upload *(rw,no_root_squash)

设置为开机启动

[root@image ~]# systemctl enable nfs
Created symlink from /etc/systemd/system/multi-user.target.wants/nfs-server.service to /usr/lib/systemd/system/nfs-server.service.

安装wordpress

1.在MySQL-Master上受权一个用于数据库操做的帐户，建立一个wordpress的数据库

[root@master ~]# mysql -e "GRANT ALL PRIVILEGES ON wordpress.* TO 'wpuser'@'192.168.27.%' IDENTIFIED BY'111111';"
[root@master ~]# mysql -e "CREATE DATABASE wordpress;"
[root@master ~]# mysql -e "show databases;"
+--------------------+
| Database           |
+--------------------+
| information_schema |
| hellodb            |
| mysql              |
| performance_schema |
| test               |
| wordpress          |
+--------------------+

2.分别在后端两个web服务器上解压wordpress

[root@web1 ~]# tar xf wordpress-5.0.1-zh_CN.tar.gz

3.将解压后的数据复制到站点目录

[root@web1 ~]# cp -a wordpress/* /data/www/

4.复制work

[root@web1 ~]# cp /data/www/{wp-config-sample.php,wp-config.php}
[root@web1 ~]# vim /data/www/wp-config.php
// ** MySQL 设置 - 具体信息来自您正在使用的主机 ** //
/** WordPress数据库的名称 */
define('DB_NAME', 'wordpress');

/** MySQL数据库用户名 */
define('DB_USER', 'wpuser');

/** MySQL数据库密码 */
define('DB_PASSWORD', '111111');

/** MySQL主机 */
define('DB_HOST', '192.168.27.100');

/** 建立数据表时默认的文字编码 */
define('DB_CHARSET', 'utf8');

/** 数据库整理类型。如不肯定请勿更改 */
define('DB_COLLATE', '');

/**#@+
 * 身份认证密钥与盐。      
 *
 * 修改成任意独一无二的字串！
 * 或者直接访问{@link https://api.wordpress.org/secret-key/1.1/salt/ WordPress.org密钥生成服务}
 * 任何修改都会致使全部cookies失效，全部用户将必须从新登陆。
 *
 * @since 2.6.0
 */
define('AUTH_KEY',         'Q8B&gE6k?}}bh|:23l/8Pq;#q$?4HT^-riv^Tnk5UcwDIf#g`I3+RJ~^+O7>nUk6');
define('SECURE_AUTH_KEY',  '?{2tjkt_KN(+:d|tWA}Th5fi!-y$xVO^sk#>F~{?B$X|#9)6S(~h`0KY?6CY|0jL');
define('LOGGED_IN_KEY',    'v:_a0a:2Eh^fj9-`&P+.i*V0#-M#jGjw<1*p/9Tea7y=q}R=Hy,Q,9qBX5Kx!ybV');
define('NONCE_KEY',        '^5g3j_7:H,_=m/T/ mB`JQxUgXFFjEkhJ)OV qy&|W}aoxQ11t_j;D;yl(w;MV46');
define('AUTH_SALT',        '8ZW}E[tXfRDd}$h02-hAgG]zZg4/NX}kM(K_M_Y|[fUz/C!.9|:lfcexu91kIe5q');
define('SECURE_AUTH_SALT', ']r+bt+7&_KkBE~!V+;}8fw|a8,&#5B+-H.ELKN.}!qhFL,LZ+Vj=p0@y5gi5Fo^F');
define('LOGGED_IN_SALT',   'jGwl&sWdAh.dNiGSy`qV.-6,DzaFYE;xG;Js*ZgM(E|7a57y(_?]^-u7>;)R<UjH');
define('NONCE_SALT',       '*Zl:=N-W!+B8kbaoY`-q)Mq8r7xK|I1^IT0;.ZMiB-Fh$?OtmD/+[![`I@)p~~Lw');
/**#@-*/

将此文件复制到web2服务器上

[root@web1 ~]# scp /data/www/wp-config.php 192.168.27.22:/data/www

分别在web服务器上挂载nfs，将图片存储到nfs上

[root@web1 ~]# mkdir /data/www/wp-content/uploads
[root@web1 ~]# mount 192.168.27.23:/data/upload /data/www/wp-content/uploads

测试登陆
搭建高可用wordpress(keepalived+lvs)

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