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<br>tar -zxf varnish-3.0.7.tar.gz<br>cd varnish-3.0.7<br>./configure --prefix=/usr/local/varnish<br>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