Configuring a subnet in an upstream server

[Aleksandar Lazic]

Am 03-04-2017 18:09, schrieb Dynastic Space:

> I used a poor example.
> The functionality I was interested in was adding a range of application 
> servers, all part of the same domain.

I think you have the following options.

.) or list every app server in the upstream block 
http://nginx.org/en/docs/http/ngx_http_upstream_module.html#upstream
.) DNS rr with resolver 
http://nginx.org/en/docs/http/ngx_http_core_module.html#resolver
.) in the commercial version is also a service=name and resolve possible 
http://nginx.org/en/docs/http/ngx_http_upstream_module.html#server

You can also use a script which creates from 192.168.0.0/16 a server 
line for the upstream and include it into the nginx.conf

You can add in the log format the upstream address to see to which app 
server the request was forwarded.
http://nginx.org/en/docs/http/ngx_http_upstream_module.html#variables

Regards
Aleks

> D
> 
> On Mon, Apr 3, 2017 at 11:04 AM, B.R. via nginx <nginx at nginx.org> 
> wrote:
> 
> What would be the meaning of that?
> 
> How do you route traffic to 192.168.0.0? Do you really want to send 
> requests to 192.168.255.255?
> How would you handle requests sent to some servers (but not all) if 
> some are not responsive?
> 
> I suspect what you want to use is dynamic IP addresses for your 
> backends. Good news: you can use domain names.
> 
> ---
> B. R.
> 
> On Sun, Apr 2, 2017 at 8:42 AM, Dynastic Space 
> <dynasticspace at gmail.com> wrote:
> 
> Is it possible to configure a collection of servers using subnet 
> notation in the upstream server knob? e.g. server 192.168.0.0/16.
> 
> Thanks,
> 
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