linux下varnish安装及配置使用

1、源码下载

下载地址：http://sourceforge.net/projects/varnish/files/ 可以找最新稳定版下载

官网：https://www.varnish-cache.org

2、解压安装

tar -zxvf varnish-2.1.3.tar.gz
cd /usr/local/src/varnish-2.1.3
./autogen.sh
./configure --prefix=/usr/local/varnish --enable-debugging-symbols --enable-developer-warnings --enable-dependency-tracking

make && make install

注：编译过程可能出现：No package 'libpcre' found 是pcre少了开发包

解决办法：yum -y install pcre pcre-devel

To build Varnish on a Red Hat or Centos system you need the following packages installed:

• automake
• autoconf
• libtool
• ncurses-devel
• libxslt
• groff
• pcre-devel
• pkgconfig

（centos下以上的包必须确保安装 其他系统参见：https://www.varnish-cache.org/docs/2.1/installation/install.html）

yum -y install automake autoconf libtool ncurses-devel libxslt groff pcre-devel pkgconfig

3、配置参数说明

启动参数说明  
  -a address:port              # varnishd httpd监听地址及其端口 
    -b address:port              # 后台服务器地址及其端口 
                                 #    -b  
                                 #    -b ':' 
    -d                           # 使用debug模式 
    -f file                      # varnishd 服务器存取规则文件 
    -F                           # Run in foreground 
    -h kind[,hashoptions]        # Hash specification 
                                 #   -h simple_list 
                                 #   -h classic  [default] 
                                 #   -h classic, 
    -n dir                       # varnishd working directory 
    -P file                      # PID file 
    -p param=value               # 服务器参数，用来优化性能 
    -s kind[,storageoptions]     # 缓存内容存放方式 
                                 #   -s malloc 
                                 #   -s file  [default: use /tmp] 
                                 #   -s file, 
                                 #   -s file,, 
    -t                           # Default TTL 
    -T address:port              # telnet管理地址及其端口 
    -V                           # version 
    -w int[,int[,int]]           # 工作线程数 
                                 #   -w  
                                 #   -w min,max 

一般使用varnishd-aaddress:port-baddress:port其他使用默认即可启动(注意:vcl中指定后台服务器的话就不用使用-b参数了)

4、 配置文件说明

进入配置文件目录

cd/usr/local/varnish/etc/varnish

cp default.vcl varnish.vcl

vim varnish.vcl（拷贝以下参数）

backend server {
      .host = "127.0.0.1";
      .port = "80";
}

acl purge {
       "localhost";
       "127.0.0.1";
       "192.168.1.0"/24;
}

sub vcl_recv {
       if (req.request == "PURGE") {
               if (!client.ip ~ purge) {
                       error 405 "Not allowed.";
               }
               return(lookup);
       }

}

sub vcl_hit {
       if (req.request == "PURGE") {
               set obj.ttl = 0s;
               error 200 "Purged.";
       }
}

sub vcl_miss {
       if (req.request == "PURGE") {
               error 404 "Not in cache.";
       }
}

sub vcl_fetch {
       if (req.request == "GET" && req.url ~ "\.(txt|js){1}quot;) {
                 set beresp.ttl = 3600s;
       }
       else {
                 set beresp.ttl = 30d;
       }
}

由于版本不同有关配置请参看官网：https://www.varnish-cache.org/docs/2.1/tutorial/index.html#tutorial-index（2.1版本配置地址）

更多版本配置见：https://www.varnish-cache.org/docs/

参考文章：http://kerry.blog.51cto.com/172631/402923

启动命令：

/usr/local/varnish/sbin/varnishd -f /usr/local/varnish/etc/varnish/varnish.vcl -a 0.0.0:800 -s file,/var/vcache/varnish_cache.data,1G -g www -u www -w 30000,51200,10 -T 127.0.0.1:3500

Now you have Varnish running. Let us make sure that it works properly. Use your browser to go tohttp://youwebsite:800/- you should now see your web application running there.

在你浏览器输入：http://youwebsite:800/即可

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