Nginx +keepalived+varnish+lamp实现高可用、负载均衡集群

Nginx +keepalived+varnish+lamp实现高可用、负载均衡集群

3、再通过varnish实现动静分离

所有主机必做的步骤 systemctl stop firewalld //关闭防火墙 setenforce 0 //关闭监控

1、装Nginx +keepalived（两台机子都要做的）（100主101备） systemctl stop firewalld //关闭防火墙 setenforce 0 //关闭监控 cd /etc/yum.repos.d/ mv back/* ./

yum install -y epel-release

yum install -y nginx

yum install keepalived -y

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主（80.100）

vi /etc/keepalived/keepalived.conf(把里面内容全删了添加以下内容) ! Configuration File for keepalived global_defs { route_id NGINX-01 } vrrp_script nginx { script "/opt/nginx.sh" interval 2 weight -10 } vrrp_instance VI_1 { state MASTER interface ens32 virtual_router_id 51 priority 150 advert_int 1 authentication { auth_type PASS auth_pass 1111 } track_script { nginx } virtual_ipaddress { 192.168.80.188 } }

scp /etc/keepalived/keepalived.conf root@192.168.80.101:/etc/keepalived/keepalived.conf

备（80.101）

vi /etc/keepalived/keepalived.conf（修改以下画圈部分）

vi /opt/nginx.sh（添加以下内容） #!/bin/bash A=$(ps -ef | grep keepalived | grep -v grep | wc -l) if [ $A -gt 0 ];then systemctl start nginx else systemctl sop nginx fi

chmod +x /opt/nginx.sh ll /opt/nginx.sh

netstat -anpt | grep nginx systemctl start keepalived netstat -anpt | grep nginx

ip addr show ens32

vi /opt/nginx.sh（添加以下内容） #!/bin/bash A=$(ip addr | grep 192.168.80.188/32 | grep -v grep | wc -l) if [ $A -gt 0 ];then systemctl start nginx else systemctl stop nginx fi

chmod +x /opt/nginx.sh systemctl start keepalived cat /var/log/messages

cat /var/log/messages

vi /etc/nginx/nginx.conf（修改以下内容） upstream varnish_pool { server 192.168.80.102:80; server 192.168.80.103:80; } proxy_pass http://varnish_pool; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $remote_addr;

nginx -t

scp /etc/nginx/nginx.conf 192.168.80.101:/etc/nginx/nginx.conf

systemctl restart nginx

2、装varnish（80.102,80.103）（两台机子都需要做） systemctl stop firewalld //关闭防火墙 setenforce 0 //关闭监控 cd /etc/yum.repos.d/ mv back/* ./ yum install epel-release -y //需要联网

yum install -y varnish

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vi /etc/varnish/varnish.params（修改环圈部分）

vi /etc/varnish/default.vcl（修改添加以下部分） backend web1 { .host = "192.168.80.104"; .port = "80"; } backend web2 { .host = "192.168.80.105"; .port = "80"; } sub vcl_recv { if (req.url ~ "(?i)\.php$"){ set req.backend_hint = web1; }else{ set req.backend_hint = web2; }

systemctl start varnish netstat -anpt | grep varnish

vi /etc/varnish/varnish.params（修改以下内容）

scp /etc/varnish/default.vcl 192.168.80.103:/etc/varnish/default.vcl

80.103

systemctl start varnish netstat -anpt | grep varnish

3、装lamp（两台机子都要做的）（100主101备） systemctl stop firewalld //关闭防火墙 setenforce 0 //关闭监控 cd /etc/yum.repos.d/ mv back/* ./ 安装wget yum install -y wget

yum install -y start httpd systemctl enable httpd 获取rpm软件包： wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm

安装rpm包 rpm -ivh mysql-community-release-el7-5.noarch.rpm

安装mysql yum install -y mysql-community-server

启动 systemctl start mysql systemctl enable mysql 修改root密码并设置允许远程连接 进入mysql mysql -uroot

设置root密码为123456 set password for 'root'@'localhost' =password('123456'); 设置允许用root账户进行远程连接，并设置其密码为123456 grant all privileges on *.* to root@'%'identified by '123456'; 修改的配置立即生效 flush privileges; 退出： exit

部署php yum install -y php

安装组件是php支持mysql yum install -y \ php-mysql \ php-gd \ libjpeg* \ php-ldap \ php-odbc \ php-pear \ php-xml \ php-xmlrpc \ php-mbstring \ php-bcmath \ php-mhash

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80.104

vi /etc/httpd/conf/httpd.conf（修改以下内容） ServerName example.com:80去掉#号

systemctl start httpd echo "192.168.80.101" > /var//etc/httpd/conf/httpd.conf（修改以下内容） ServerName example.com:80去掉#号

systemctl start httpd echo "192.168.80.102" > /var/www/html/index.html

任务栏搜索192.168.80.100

任务栏搜索192.168.80.102

任务栏搜索192.168.80.103

任务栏搜索192.168.80.104

任务栏搜索192.168.80.105

任务栏搜索192.168.80.188

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