Nginx-在proxy_pass中添加变量时无限重载 [英] Nginx - Infinite reload when adding variable in proxy_pass

问题描述

我正在Docker上使用Nginx，我想将每个用户分配到不同的端口.

I am working with Nginx on Docker and I want to assign each user to a different port.

首先，不添加任何内容，我的代码可以正常工作:

First, without adding anything, my code works fine:

    location  /viewer/ {
        proxy_pass http://xx.xxx.xxx.xxx:18080/Road/;
    }

按照预期，转到URL中的"/viewer/"将代理端口18080.

Going to "/viewer/" in URL will proxy to the port 18080, just as expected.

但是，如果我向proxy_pass添加任何变量，例如:

But if I add any variable to the proxy_pass like:

set $test 1;
proxy_pass http://xx.xxx.xxx.xxx:18080/Road/?$test;

然后，首先，静态文件不再加载，我必须添加如下代码:

then, first of all, the static files do not load anymore and I have to add lines like these:

    location ~ \.css {
       add_header  Content-Type    text/css;
    }
    location ~ \.js {
       add_header  Content-Type    application/x-javascript;
    }

此后，静态文件再次工作，但是页面开始无限重装.

After this, the static files work again but the page starts to reload infinitely.

在我想这是因为我用proxy_pass中的一个变量替换了端口，但是正如我向您展示的那样，当我在其中添加任何变量时会发生这种情况.

Before I was thinking it was because I replaced the port by a variable in proxy_pass, but as I showed you it happens when I add any variable there.

您认为我可以做错什么?谢谢您的帮助！

What do you think I could do wrong? Thank you for your help!

推荐答案

向 proxy_pass 添加变量会改变其行为.您将需要构建整个URI.

Adding a variable to proxy_pass changes it's behaviour. You will need to construct the entire URI.

在您的原始配置中，将URI /viewer/foo 传递给/Road/foo ，然后再传递给上游.

In your original configuration, the URI /viewer/foo is translated to /Road/foo before passing upstream.

在新配置中，URI /viewer/foo 被转换为/Road/?1 ，原始URI的尾部丢失了.

In your new configuration, the URI /viewer/foo is translated to /Road/?1 and the tail of the original URI is lost.

使用 rewrite ... break 修改URI可能会获得更大的成功.

You may have more success using rewrite...break to modify the URI.

例如:

location  /viewer/ {
    rewrite ^/viewer(.*)$ /road$1?something break;
    proxy_pass http://xx.xxx.xxx.xxx:18080;
}

有关详细信息，请参见此文档.

See this document for details.

根据您的评论，您希望更改目标端口.

According to your comment, you wish to change the destination port.

例如:

location  /viewer/ {
    rewrite ^/viewer(.*)$ /road$1 break;
    proxy_pass http://xx.xxx.xxx.xxx:$myport;
}

如果您通过IP地址指定上游服务器，则不需要 resolver 语句.但是，如果您通过名称指定上游，则需要定义一个 resolver .有关详细信息，请参见本文档.

If you specify the upstream server by IP address, a resolver statement will not be required. But if you specify the upstream by name, you will need to define a resolver. See this document for details.

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