Forum Discussion
Hille_de_Graaf_
Nimbostratus
NimbostratusSimplify iRule
I have an iRule which would look at the content of the HTTP-header and loadbalance on behalve of that content.
Is there a more efficient way to build an iRule with the same results as the example below?
when HTTP_REQUEST {
if { [HTTP::uri] ends_with "ACCBPMv1" } {
pool xml-fw
} elseif { [HTTP::uri] ends_with "ACCTVIv1" } {
pool xml-fw
} elseif { [HTTP::uri] ends_with "ACCDVSv1" } {
pool xml-fw
} elseif { [HTTP::uri] ends_with "BPMv1" } {
pool xml-fw
} elseif { [HTTP::uri] ends_with "TVIv1" } {
pool xml-fw
} elseif { [HTTP::uri] ends_with "DVSv1" } {
pool xml-fw
} else {
pool ws-accxml
}
}
Regards,
Hille
2 Replies
- The_BhattmanThere are 2 ways I can see this work.
1) Using SWITCH
You can use the switch statementwhen HTTP_REQUEST { switch [HTTP::uri] { "ACCBPMv1" {pool xml-fw } "ACCTVIv1" { pool xml-fw } "ACCTDSv1" { pool xml-fw } "BPMv1" { pool xml-fw } "TVIv1" { pool xml-fw } "DVSv1" { pool xml-fw } } }
orwhen HTTP_REQUEST { switch -glob [HTTP::uri] { "ACC*" {pool xml-fw } "BPMv1" { pool xml-fw } "TVIv1" { pool xml-fw } "DVSv1" { pool xml-fw } } }
orwhen HTTP_REQUEST { switch -glob [HTTP::uri] { "*v1" {pool xml-fw } } }
You would then set the virtual server to the default pool to ws-accxml for any of the switch irules listed above.
2) Using Datagroup the solution looks a bit cleaner.class uricontains { "ACCBPMv2" "ACCBPMv1" "ACCTVIv1" "ACCTDSv1" "BPMv1" "TVIv1" "DVSv1" } when HTTP_REQUEST { if { [matchclass [HTTP::uri] contains $::uricontains] } { pool xml-fw } else {pool xml-accxml } }
Hope this helps
/CB 
Nicolas_MenantEmployee
Hi,
Switch is the most efficient way to do the job if you have < 100 entries. If you have more entries then datagroup is the most efficient one
HTH
