haproxy nginx tomcat

拟机上搭了 haproxy nginx tomcat的架构模型

没有haproxy的时候 nginx监听80端口将动态请求转发给后端的8080

有haproxy后 haproxy监听80 转发给nginx的8001 nginx在讲动态的请求转发给tomcat的8080

但是就有了一个问题，请求的url后面会包含有8001端口的

最后找到了解决办法

在nginx.conf

server {
          listen       8001;
          server_name  beta.google.com;
        

location / {
             proxy_pass http://tomcat;

                   proxy_redirect off;
                   proxy_set_header Host $host;
                   proxy_set_header X-Real-IP $remote_addr;
                   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

这样就不会有8001了

haproxy.conf

listen lbserver  *:80
   cookie JSESSIONID prefix
  # - equal weights on all servers
  # - maxconn will queue requests at HAProxy if limit is reached
  # - minconn dynamically scales the connection concurrency (bound my maxconn) depending on size of HAProxy queue
  # - check health every 20000 microseconds
 option httpchk GET /index
  server nginx1  127.0.0.1:8001  weight 1 minconn 3 maxconn 6 check inter 20000
  server tomcat2  127.0.0.1:8082  weight 1 minconn 3 maxconn 6 check inter 20000

后来8001又出现了

因为配了一个

rewrite /mmm /fff permanent；

这样在转发后就又出现了8001

解决方法

rewrite /mmm http://beta.google.cn/fff permanent；

看现象的话 nginx内部转发的话你是什么端口的来的就转发到什么端口 8001 来的自然转发到8001

但从外部来的话就是80 来的

网上找相关资料

Hi, everyone.

I have a server running a php web forum. User logging into my site
using 'logging.php'.

I had set up a https server using nginx, but consdering server load, I
just want my user using https in only logging.php.

I want to settle this by using url rewrite. When my users click
http://mysite.com/logging.php,
 nginx will automatic change the url to
https://mysite.com/logging.php
. And when my user click any other links
in my site, for example, https://mysite.com/index.php,
 nginx will
change https to http.

Can rewrite work like this?

Thank you!

BTW,changing my forum codes may work, but I didn't know much about php
coding...so, I want to settle this in nginx rewrite...

In your plain http server block:

if ($uri ~* "/logging.php$") {
 rewrite ^/(.*)$ https://$host/$1
 redirect;
}


In your https server block

if ($uri !~* "/logging.php$") {
 rewrite ^/(.*)$ http://$host/$1
 redirect;
}


This is when you are using standard ports (80 for HTTP and 443 for 
HTTPS). If you are using non-standard ports (say 8080 for http, and 8443 
for https, then in this case, you should have in your http block)

if ($uri ~* "/logging.php$") {
 rewrite ^/(.*)$ https://$host:8443/$1
 redirect;
}

and correspondingly, in your https block, you should have:

if ($uri !~* "/logging.php$") {
 rewrite ^/(.*)$ http://$host:8080/$1
 redirect;
}

The $host variable is the host portion of the URL that was used to reach 
your server
See http://wiki.codemongers.com/NginxHttpCoreModule
 for the list of 
variables

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