nginx redirect using /etc/hosts

Question

I have a confusion and problem with doing maybe strange thing. I've got application, where we send a request at http://somehost:9000/endpoint/x. In /etc/hosts where is our app running we've got 123.123.123.123:somehost mapping. But on our production environment we can't touch hosts file. So we've got create proxy on nginx. So.. Is it possible to request into nginx (http://nginx:80/endpoint/x) for example and he will do that hosts mapping inside? Additional things is that we have to add .p12 certificate (it can be copied straight to nginx directories) and body + HTTP headers from request which we send from application. I think that part with hosts mapping is mostly confusing me - I don't know how to make it.

server {
    listen              80;

    location / {
        proxy_pass http://somehost:9000;

    }
}

It is a idea about sample proxy, but how to make this host mapping from that given host? Thanks!

Do you want to specify the IP address of the service in the Nginx configuration file? — Richard Smith
Hm, what do you mean? Problem is that I can't send request directly to 123.123.123.123, I have to request it by somehost and map DNS in hosts file 123.123.123.123:somehost — saculo

YuriB. YuriB. · Accepted Answer · 2020-12-08T17:30:57

You cant' use /etc/hosts on server but you could use nginx upstream module. Like this

upstream somehost {
  server 123.123.123.123:9000;
}

server {
    ...
    location / {
        proxy_pass http://somehost;

    }
}

nginx redirect using /etc/hosts

1 Answers