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，没有添加任何东西，我的代码工作正常:

First, without adding anything, my code works fine:

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

转到 URL 中的/viewer/"将代理到端口 18080，正如预期的那样.

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，我必须添加如下行:

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，但页面开始无限重新加载.

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

之前我认为这是因为我用 proxy_pass 中的变量替换了端口，但正如我向您展示的那样，当我在那里添加任何变量时就会发生这种情况.

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.

你认为我做错了什么?感谢您的帮助！

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

推荐答案

向 proxy_pass 添加一个变量会改变它的行为.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，URI /viewer/foo 在传递到上游之前被转换为 /Road/foo.

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

在您的新配置中，URI /viewer/foo 被转换为 /Road/?1 并且原始 URI 的尾部丢失.

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 可能会取得更大的成功.

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，请参阅本文档.

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，如果您按名称指定上游，则需要定义一个 resolver.有关详细信息，请参阅本文档.

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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