Varnish安装使用（初学）

本人对varnish也是新手，这里记录一下安装步骤！

环境：centos6.6

varnish安装包下载：wget https://repo.varnish-cache.org/source/varnish-3.0.7.tar.gz

先上我的拓扑图（基础拓扑为LVSDR环境）　　LVS不在这里讲解

安装

yum -y install gcc gcc-c++ make autoconf automake

yum -y install automake autoconf libtool ncurses-devel libxslt groff pcre-devel pkgconfig readline-devel
tar -zxf varnish-3.0.7.tar.gz
cd varnish-3.0.7
./configure --prefix=/usr/local/varnish
make;make install

拷贝文件到系统

cp redhat/varnish.initrc /etc/init.d/varnish

cp redhat/varnish.sysconfig /etc/sysconfig/varnish

cp redhat/varnish_reload_vcl /usr/local/varnish/bin

修改varnish配置文件

vim /etc/sysconfig/varnish

修改为如下内容（里面有许多varnish的性能配置）

VARNISH_VCL_CONF=/usr/local/varnish/etc/varnish/default.vcl

VARNISH_LISTEN_PORT=80

VARNISH_SECRET_FILE=/usr/local/varnish/etc/varnish/secret

vim /etc/init.d/varnish

pidfile=/var/run/varnish.pid

exec="/usr/local/varnish/sbin/varnishd"

reload_exec="/usr/local/varnish/bin/varnish_reload_vcl"

# Done parsing, set up command

VARNISHADM="/usr/local/varnish/bin/varnishadm $secret -T $VARNISH_ADMIN_LISTEN_ADDRESS:$VARNISH_ADMIN_LISTEN_PORT"

注:也可以将/usr/local/varnish/bin添加到系统的PATH中,这样就不需要编辑varnish_reload_vcl

生成varnish管理秘钥:

/usr/bin/uuidgen > /usr/local/varnish/etc/varnish/secret

chmod 644 /usr/local/varnish/etc/varnish/secret

VCL配置（对应拓扑图）

vim /usr/local/varnish/etc/varnish/default.vcl

backend web1 {

.host = "192.168.0.38";

.port = "80";

.connect_timeout = 1s;

.first_byte_timeout = 5s;

.between_bytes_timeout = 2s;

}

backend web2 {

.host = "192.168.0.162";

.port = "80";

.connect_timeout = 1s;

.first_byte_timeout = 5s;

.between_bytes_timeout = 2s;

}

director syw_web random {

        { .backend = web1; .weight =2; }

        { .backend = web2; .weight =2; }

}

#clean cache

acl purge {

        "localhost";

        "127.0.0.1";

        "192.168.0.162";

        "192.168.0.167";

}

sub vcl_recv {

        if (req.http.host ~ "^192.168.0.193"){

                set req.backend = syw_web;}

if (req.request == "PURGE") {

      if (!client.ip ~purge) {

        error 405 "Not Allowed";

    }

        return(lookup); #find localhost cache

}

if (req.request == "GET" && req.url ~ "\.(png|swf|txt|png|gif|jpg|css|js|htm|html)$") {

    unset req.http.cookie;

 }

if (req.url ~ "^/images") {

  unset req.http.cookie;

 }

#if (req.http.Cache-Control ~ "(no-cache|max-age=0)"){

#       purge_url(req.url);

#}

#       return (lookup);

#获取客户端ip

#     if (req.restarts == 0) {

  if (req.http.x-forwarded-for) {

         set req.http.X-Forwarded-For =

         req.http.X-Forwarded-For + ", " + client.ip;

     } else {

            set req.http.X-Forwarded-For = client.ip;

            }

  #   }

}

检查VCL配置是否正确:

/etc/init.d/varnish configtest

或

/usr/local/varnish/sbin/varnishd -C -f /usr/local/varnish/etc/varnish/fdfs.vcl    #启动varnish: 

service varnish start    #查看varnish状态: 

/etc/init.d/varnish status   # 动态加载VCL配置: 

/etc/init.d/varnish reload   # 停止varnish: 

/etc/init.d/varnish stop

先就说这么多吧

更多精华请参考

http://www.it165.net/admin/html/201405/2999.html

http://www.51itstudy.com/30132.html

巴特西

Varnish安装使用（初学）

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