monitor upstream IP addr changes without using nginx's resolver

[Kunal Pariani]

Sorry am new to Lua but can you plz explain how this upstream status & control will help with this issue. How can i query for the upstream ip after every certain time interval and reconfigure nginx if there's a change detected ? 
The reason for not using nginx's resolver here is that i have to parse the resolv.conf to get the nameservers which is not a clean solution as there are still some linux distros that don't use /etc/resolv.conf. This should be OS & implementation independent. How to make this work everywhere ? 

Thanks 
-Kunal 


From: "itpp2012" <nginx-forum at nginx.us> 
To: nginx at nginx.org 
Sent: Tuesday, January 13, 2015 1:58:32 AM 
Subject: Re: resolver directive doesn't fallback to the system DNS resolver 

kunalvjti Wrote: 
------------------------------------------------------- 
> Is there already a patch for this ? 
> I am not completely sure of how to make the nginx resolver (in 
> ngx_resolver.c) fallback to libresolv automatically and if this not 

Have a look at a Lua solution, not everything works yet, 
patches/ideas/feedback welcome :) 
http://nginx-win.ecsds.eu/devtest/EBLB_upstream_dev1.zip 

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,255961,256081#msg-256081 

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