nginx+ Keepalived+proxy_cache for Nginx high availability and cache

nginx+ Keepalived+proxy_cache for Nginx high availability and cache

Environment:

master:10.10.0.224

slave:10.10.0.225

Real Server 1:10.10.0.221

Real Server 2:10.10.0.226

vip:10.10.0.220

Real Server installs Web services in advance.

# yum Install Httpd-y

# cd/var/www/html

# Touch Test.html

# echo "10.10.0.221" > test.html # Real Server1

# echo "10.10.0.226" > test.html # Real Server2

Master/slave:

First, install Nginx

Installation dependencies

# yum install-y pcre pcre-devel gd gd-devel

# tar ZCVF nginx-1.9.1.tar.gz

# CD nginx-1.9.1

#./configure--prefix=/etc/nginx--with-http_ssl_module--with-http_spdy_module--with-http_stub_status_module-- With-pcre

# make

# make Install

Second, the configuration file modification

# cd/etc/nginx/conf

# vim Nginx

#负载均衡

Upstream Webs {

Server 10.10.0.221 weight=2;

Server 10.10.0.226 weight=1 max_fails=2 fail_timeout=2;

}

#设置缓存

Proxy_cache_path/data/cache levels=1:2 keys_zone=one:20m max_size=1g;

server {

Listen 80;

server_name www.a.com;

Location/{

Proxy_set_header Host $host;

Proxy_set_header X-real-ip $remote _addr;

Proxy_pass Http://webs;

Add_header X-via-ip $server _addr;

Add_header x-cache-status $upstream _cache_status;

Proxy_cache one;

Proxy_cache_valid 302 301 304 10m;

}

}

Startup scripts

# Vim/etc/init.d/nginx

#!/bin/bash

# It is Nginx

# Chkconfig:-85 15

# Discription:nginx is a high-performance web and proxy server

# date:2015-6-2

Nginxd=/etc/nginx/sbin/nginx

Nginx_config=/etc/nginx/conf/nginx.conf

Nginx_pid=/var/run/nginx.pid

Retval=0

Prog= "Nginx"

. /etc/rc.d/init.d/functions

. /etc/sysconfig/network

[${networking} = no] && exit 0

[-X $ngind] | | Exit 0

Start () {

If [-e $nginx _pid]

Then

echo "Nginx already running ..."

Exit 1

Fi

Echo-n $ "Staring $prog:"

Daemon $nginxd-C ${nginx_config}

Retval=$?

Echo

[$RETVAL = 0] && Touch/var/lock/subsys/nginx

Return $RETVAL

}

Stop () {

Echo-n $ "Stopping $prog:"

Killproc $nginxd

Retval=$?

Echo

[$RETVAL = 0] && rm-f/var/lock/subsys/nginx/var/run/nginx.pid

}

Reload () {

Echo-n $ "Reloading $prog:"

Killproc $nginxd-hup

Retval=$?

Echo

}

Case "$" in

Start

start;;

Stop

stop;;

Reload

reload;;

Restart

Stop

Start

;;

Status

Status $prog

Retval=$?;;

*)

echo $ "Usage: $prog {start|stop|status|reload|restart|help}"

Exit 1;;

Esac

Exit $RETVAL

# chmod +x/etc/init.d/nginx

# Service Nginx Restart

Third, testing

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Four, install the configuration keepalived (here with Yum installation)

# yum Install-y keepalived

# vim/etc/keepalived/keepalived.conf

! Configuration File for Keepalived

Global_defs {

Notification_email {

# [Email protected]

[Email protected]

}

Notification_email_from [email protected]

Smtp_server 127.0.0.1

Smtp_connect_timeout 30

router_id Lvs_devel1 #全局唯一, slave on need to modify

}

Vrrp_instance Vi_1 {

State MASTER

Interface eth0

VIRTUAL_ROUTER_ID 51

Priority #slave需修改

Advert_int 1

Authentication {

Auth_type PASS

Auth_pass 1111

}

virtual_ipaddress {

10.10.0.220/12 Dev eth0 label eth0:0

}

}

V. Open the service and start the boot

# service Keepalived Start

# Chkconfig keepalived on

# chkconfig Nginx on

VI. Testing

This article is from the "ngames" blog, make sure to keep this source http://ngames.blog.51cto.com/3187187/1658759

nginx+ Keepalived+proxy_cache for Nginx high availability and cache