Forum Discussion
rb1980_75708
Nimbostratus
Nimbostratusnode names
Is there any way to get the node "name" in an iRule?
I have a rule that is currently putting the info from LB::server name
into a header for diagnostics, but I have a lot of nodes and would really like to be able to see the "screen" name of the node selected rather than its IP address.
in the conf they appear as:
node 192.168.0.100 {
screen webserver1
}
I'm looking to get that value "webserver1" to put in a header...
rb1980_75708I did find this post that suggests doing a lookup on the IP. While not really desirable, I guess would work if there are no other options.- Chris_Miller
Altostratus
One option would be using a class/data group. You could create a relationship between the node's IP address and it's friendly name. What version are you using?
An example for 10.1 and later would be to use class search - value.
You'd define a string-type data group (named servernames below) where the field was 192.168.0.100 and value was webserver1. Then, you might use a rule like the following:when HTTP_REQUEST { HTTP::header insert "server_name" [class search - value servernames eq [LB::server addr]] } 
hoolioCirrostratus
You could also open a request for enhancement with F5 Support for getting this functionality to get the node name added to iRules.
Aaron- Chris_MillerPosted By hoolio on 01/30/2011 10:22 PM
You could also open a request for enhancement with F5 Support for getting this functionality to get the node name added to iRules.
Aaron
That would be much cooler. :-P - rb1980_75708Posted By Chris Miller on 01/31/2011 06:27 AM
Posted By hoolio on 01/30/2011 10:22 PM
You could also open a request for enhancement with F5 Support for getting this functionality to get the node name added to iRules.
Aaron
That would be much cooler. :-P
Agreed! But at least I have a couple of options... Thanks. 
adharkraderDid anything like this get implemented? It seems like the properties of the various "lists" (pools, nodes, etc) should be accessible from an iRule... maybe I'm just missing it?
