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aag
Asked: 2021-12-24 23:40:55 +0800 CST

nginx proxy_pass of different subdomains to different locations within one server block

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The typical way of reverse-proxying different subdomains to different places with Nginx is to install a unique server for each subdomain, like this:

server {
    server_name subdomain1.example.com;
    location / {
        proxy_pass       http://hostname1:port1;
    }
}
server {
    server_name subdomain2.example.com;
    location / {
        proxy_pass       http://hostname2:port2;
    }
}

Is it possible to achieve the same result within one single server block (e.g. server_name .example.com, without any specified subdomain), by specifying different locations within that server block?

nginx

2 Answers

  1. If you specify different locations then it won't be the same result as you have the same location / in two server blocks.

    • 1
  2. Best Answer

    Yes, it is possible.

    First, set up a map to map domains into proxy_pass destinations:

    map $host $dest {
    www1.example.com 192.168.10.10:8001;
    www2.example.com 192.168.10.11:8002;
    default 192.168.10.12;
}

server {
    server_name *.example.com;

    proxy_pass http://$dest;
}

    When nginx receives a request, it goes to proxy_pass directive. Then it resolves $dest using the map, which maps different virtual host names to destinations. Then nginx proxies the request using the resolved destination.

    Remember to set up the default destination properly. Every public web server receives requests for all kinds of domain names. Typically you want to return 404 on unknown virtual hosts.

    • 1