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tftd
Asked: 2014-09-09 06:59:04 +0800 CST

How to properly configure nginx proxy pass when the endpoint is in a root context?

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I'm trying to figure out how to configure a reverse proxy in nginx when the endpoint is in a root context:

http://frontend.com/mylink proxy forwards to http://10.0.0.2:8000/

Unfortunately I can't change the context of the application at http://10.0.0.2:8000, so I'm trying to figure out a workaround in nginx for this issue. The following configuration usually works fine when there is a context, but doesn't work in the situation above:

location /mylink {
    proxy_pass     http://10.0.0.2:8000;
    proxy_redirect http://10.0.0.2:8000 /mylink;
    port_in_redirect off;
}

Any ideas what I'm missing here?

nginx

2 Answers

  1. I think if you change it to:

    location /mylink {
   proxy_pass     http://10.0.0.2:8000/;
   proxy_redirect http://10.0.0.2:8000 /mylink;
   port_in_redirect off;
}

    Notice the / on the proxy_pass line, this causes the matched part of your location not to be sent to the server.

    For reference, see http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_pass:

    If the proxy_pass directive is specified with a URI, then when a request is passed to the server, the part of a normalized request URI matching the location is replaced by a URI specified in the directive:

    • 3

  2. As your location and proxy_pass don't have a trailing slash the normalized URI won't see the /mylink part cut properly nor the proxy_redirect default behaviour append it. Simply use this :

    location /mylink/ {
    proxy_pass http://10.0.0.2:8000/;
}
    • 3