varnish

qiqijiang_

于 2021-01-06 15:04:58 发布

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文章标签： varnish

本文链接：https://blog.youkuaiyun.com/qiqijiang_/article/details/112262275

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本文介绍了在CentOS系统中如何安装Varnish缓存服务器，并详细说明了配置过程，包括设置监听端口、存储大小以及后端服务器地址。通过修改`varnish.params`和`default.vcl`文件，调整了Varnish的服务参数和后端服务器的指向。最后，通过`varnish_reload_vcl`命令实现了配置的热更新，确保服务正常运行。

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varnish

1、安装varnish

[root@Centos01 ~]#yum  install varnish -y
[root@Centos01 ~]# rpm -ql varnish
/etc/logrotate.d/varnish
/etc/varnish
/etc/varnish/default.vcl  //配置各Child/Cache线程的缓存策略；
/etc/varnish/varnish.params  // 配置varnish服务进程的工作特性，例如监听的地址和端口，缓存机制；
/usr/bin/varnishadm  
/usr/lib/systemd/system/varnish.service  //varnish服务
/usr/lib/systemd/system/varnishlog.service   //日志持久的服务
/usr/lib/systemd/system/varnishncsa.service   //日志持久的服务
/usr/sbin/varnish_reload_vcl   //VCL配置文件重载程序
/usr/sbin/varnishd       //主程序
/usr/bin/varnishtest  //测试工具程序
/var/lib/varnish
/var/log/varnish   
/usr/bin/varnishhist  //以下几个是Shared Memory Log交互工具
/usr/bin/varnishlog
/usr/bin/varnishncsa
/usr/bin/varnishstat
/usr/bin/varnishtop

2、修改/etc/varnish/varnish.params文件

[root@Centos01 ~]# vi /etc/varnish/varnish.params   //修改以下两项
VARNISH_LISTEN_PORT=80
VARNISH_STORAGE="file,/var/cache/varnish,256M"
[root@Centos01 ~]# mkdir pv /var/cache/varnish
[root@Centos01 ~]# chown varnish.varnish /var/cache/varnish //修改属主属组为varnish
[root@Centos01 ~]# systemctl start varnish
[root@Centos01 ~]# ss -tnl | egrep "80|6082"
LISTEN     0      10     127.0.0.1:6082                     *:*                  
LISTEN     0      128          *:80                       *:*                  
LISTEN     0      128         :::80                      :::*

3、修改后端服务器地址及端口

[root@Centos01 ~]# vi /etc/varnish/default.vcl  //修改以下内容
backend default {
    .host = "172.17.0.1";   //后端服务器地址
    .port = "80";
}
[root@Centos01 ~]# varnish_reload_vcl   //切记生产环境不能轻易重启缓存服务器，修改VCL配置文件后重载reload即可生效
Loading vcl from /etc/varnish/default.vcl
Current running config name is 
Using new config name reload_2021-01-06T14:35:13
VCL compiled.
VCL 'reload_2021-01-06T14:35:13' now active
available       0 boot
available       0 reload_2021-01-06T12:10:20
active          0 reload_2021-01-06T14:35:13

Done

[root@Centos01 ~]# docker run --name nginx1 -d nginx:alpine
[root@Centos01 ~]# docker exec -it nginx1 /bin/sh
/ # ifconfig
eth0      Link encap:Ethernet  HWaddr 02:42:AC:11:00:01  
          inet addr:172.17.0.1  Bcast:172.17.255.255  Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:656 (656.0 B)  TX bytes:0 (0.0 B)
/ # cd /usr/share/nginx/html/   //默认的网页文件路径
/usr/share/nginx/html # ls
50x.html    index.html

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