| 知乎专栏 ｜ 多维度架构 |
例 1.5. Nginx + Tomcat
server {
listen 80;
server_name www.example.com;
charset utf-8;
access_log /var/log/nginx/www.example.com.access.log;
location / {
proxy_pass http://127.0.0.1:8080;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
location ~ ^/WEB-INF/ {
deny all;
}
location ~ \.(html|js|css|jpg|png|gif|swf)$ {
root /www/example.com/www.example.com;
expires 1d;
}
location ~ \.(ico|fla|flv|mp3|mp4|wma|wmv|exe)$ {
root /www/example.com/www.example.com;
expires 7d;
}
location ~ \.flv {
flv;
}
location ~ \.mp4$ {
mp4;
}
}
背景：网站推广审核需要隐藏或不现实首页，其他页面正常
需求：要求访问首页事显示指定页面
server {
listen 80;
server_name any.netkiller.cn;
charset utf-8;
access_log /var/log/nginx/any.netkiller.cn.access.log;
error_log /var/log/nginx/any.netkiller.cn.error.log;
location /index.html {
ssi on;
proxy_set_header Accept-Encoding "";
proxy_pass http://172.16.0.1/www/temp.html;
proxy_set_header Host www.netkiller.cn;
}
location / {
ssi on;
rewrite ^/$ /zt/your.html;
proxy_set_header Accept-Encoding "";
proxy_pass http://127.0.0.1:8080;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
error_page 404 /error/404.html;
error_page 403 /error/403.html;
error_page 502 /error/502.html;
error_page 500 502 503 504 /error/500.html;
location ~ ^/WEB-INF/ {
deny all;
}
location ~ \.(html|js|css|jpg|png|gif|swf)$ {
root /www/netkiller.cn/www.netkiller.cn;
expires 1d;
}
location ~ \.(ico|fla|flv|mp3|mp4|wma|wmv|exe)$ {
root /www/netkiller.cn/www.netkiller.cn;
flv;
mp4;
expires 7d;
}
location /zt {
root /www/netkiller.cn/www.netkiller.cn;
rewrite ^(.*)\;jsessionid=(.*)$ $1 break;
expires 1d;
}
location ^~ /zt/other/ {
ssi on;
proxy_set_header Accept-Encoding "";
proxy_pass http://172.16.0.1/www/;
proxy_set_header Host www.netkiller.cn;
proxy_cache www;
proxy_cache_valid 200 302 1m;
}
location /module {
root /www/netkiller.cn/www.netkiller.cn;
}
}
环境
User -> Http2 CDN -> Http2 Nginx -> proxy_pass 1.1 -> Tomcat
背景，默认情况下 tomcat 不会主动推送 Cookie 域，例如下面的HTTP头
Set-Cookie: JSESSIONID=8542E9F58C71937B3ABC97F002CE039F;path=/;HttpOnly
这样带来一个问题，在浏览器中默认Cookie域等于 HTTP_HOST 头（www.example.com），如果网站只有一个域名没有问题，如果想共享Cookie给子域名下所有域名 *.example.com 无法显示。
通过配置Tomcat sessionCookieDomain="example.com" 可以实现推送 Cookie 域
<Context path="" docBase="/www/netkiller.cn/www.netkiller.cn" reloadable="false" sessionCookieName="PHPSESSID" sessionCookieDomain="netkiller.cn" sessionCookiePath="/" />
这样的配置一般用户的需求都可以满足。我的需求中还有一项，在服务器绑定多个域名（二级域名）。问题来了 Tomcat 将始终推送 netkiller.cn 这个域。其他域名无法正确设置Cookie
$ curl -s -I -H https://www.netkiller.cn/index.jsp | grep Set-Cookie Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=netkiller.cn;path=/;HttpOnly $ curl -s -I -H 'Host: www.test.com' https://www.test.com/index.jsp | grep Set-Cookie Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=netkiller.cn;path=/;HttpOnly $ curl -s -I -H 'Host: www.example.com' https://www.example.com/index.jsp | grep Set-Cookie Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=netkiller.cn;path=/;HttpOnly
怎样处理需求呢，我想了两个方案，一个方案是在Nginx中配置，另一个方案是在代码中解决。其中Nginx处理起来比较灵活无需开发测试介入，最终选择nginx方案
server {
listen 443 ssl http2 default_server;
server_name _;
location ~ \.(do|jsp|action)$ {
ssi on;
proxy_set_header Accept-Encoding "";
proxy_pass http://127.0.0.1:8080;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
set $domain $host;
if ($host ~* ^([^\.]+)\.([^\.]+)\.([^\.]+)$) {
set $domain $2.$3;
}
proxy_cookie_domain netkiller.cn $domain;
}
}
server_name _; 接受任何域名绑定，default_server 将vhost 设置为默认主机。最终测试结果：
$ curl -s -I -H https://www.netkiller.cn/index.jsp | grep Set-Cookie Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=netkiller.cn;path=/;HttpOnly $ curl -s -I -H https://www.example.com/index.jsp | grep Set-Cookie Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=example.com;path=/;HttpOnly $ curl -s -I -H https://www.domain.com/index.jsp | grep Set-Cookie Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=domain.com;path=/;HttpOnly