Multiple proxy_pass destinations from a single location block

[Igor Sysoev]

On 04 Feb 2015, at 12:11, justink101 <nginx-forum at nginx.us> wrote:

> Is it possible to specify multiple proxy_pass destinations from a single
> location block? Currently we have:
> 
> location ~ ^/v1/?(?<url>.+)? {
>    resolver 208.67.222.222 208.67.220.220 valid=300s;
>    resolver_timeout 10s;
>    proxy_intercept_errors off;
>    proxy_hide_header Vary;
>    proxy_set_header Host "foo.mydomain.io";
>    proxy_set_header X-Real-IP $remote_addr;
>    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
>    proxy_pass https://foo.mydomain.io/api/$url;
>    proxy_connect_timeout 10s;
>    proxy_read_timeout 60s;
>    proxy_ssl_session_reuse on;
>    proxy_ssl_trusted_certificate /etc/pki/tls/certs/ca-bundle.crt;
>    proxy_ssl_verify on;
>    proxy_ssl_verify_depth 2;
>    proxy_ssl_ciphers "EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM
> EECDH+ECDSA+SHA384 EECDH+ECDSA+SHA256 EECDH+aRSA+SHA384 EECDH+aRSA+SHA256
> EECDH+aRSA+RC4 EECDH EDH+aRSA RC4 !aNULL !eNULL !LOW !3DES !MD5 !EXP !PSK
> !SRP !DSS";
>  }
> 
> I'd like to keep all the above logic, but ALSO set up another proxy_pass
> from this location block to say bar.mydomain.com. What is the best way to do
> this?

The first thing you do not need regex here:

location /v1/ {
    proxy_pass  http://foo.mydomain.io/api/;
    ...
}

is enough.

To add another server to proxy_pass you can use upstream:

upstream  mydomain  {
    server   foo.mydomain.io;
    server   bar.mydomain.com;
}

server {
    ...
    location /v1/ {
        proxy_pass  http://mydomain/api/;
        ...
    }



-- 
Igor Sysoev
http://nginx.com