Nginx：将除一个以外的所有子域都重写为www？

Question

Suppose I have a pair of servers that, due to the way things get deployed, need to use the same nginx.conf . One of the servers is at staging.someserver.com , and the other is at www.someserver.com .

What I want is a single rewrite line or an if condition that will redirect everything on the domain (mainly www and non-www on http, and non-www on https) to https://www.someserver.com/ , and for http://staging.someserver.com/ to redirect to https://staging.someserver.com/ , but not to https://www.someserver.com/ . How can I do this?

Answer 1

This is a trick on Nginx configuration : The first server block of HTTP block will be the "default" configuration.

So you can redirect in the first server block everything, and create another server block with your www. configuration !

Thats the best solution.

Answer 2

I don't know if this is strictly the best way to do this, but I figured something out:

server {
    listen 443 default deferred;

    # ...

    if ($host !~ (staging)|(www).*)
        rewrite ^(.*) https://www.someserver.com$1 permanent;
    }
}

server {
    listen 80;

    # ...

    if ($host !~ staging.*) {                                   
        rewrite ^(.*) https://www.someserver.com$1 permanent;    
    }                                                           
    if ($host ~ staging.*) {                                    
        rewrite ^(.*) https://staging.someserver.com$1 permanent;
    }                                                           
}