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COMMS-CORE_1795's avatar
COMMS-CORE_1795
Icon for Nimbostratus rankNimbostratus
Feb 01, 2016

2 actions in the same rule: redirect + load balance

Hi all,   I need to make an iRule whose behaviour is:   1.- When the web starts with "/a/b" redirect to "/b" AND balance to the pool POOL_x.x.x.x_8090 2.- When the web starts with "/a/" redir...
application delivery
iRules
LTM
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Feb 01, 2016

Hi Comms-Core,

you can chain as many conditions in a single 

[if]
command by using 
elseif
or 
else
conditions. The most restictive conditions are evaluated first followed by the least most restictive conditions.

Based on your provided requirements, the 

[if]
command would look like this. 

when HTTP_REQUEST {
     Format the URI tolower to negate the CASE while comparing the requested URIs
    set low_uri [string tolower [HTTP::uri]]
     Evalute the contition step-by-step. Starting with the most restrictive condition...
    if { $low_uri starts_with "/a/b" } then { 
        HTTP::redirect "http://[HTTP::host]/b" 
    } elseif { $low_uri starts_with "/a" } then { 
        HTTP::redirect "http://[HTTP::host]/" 
    } elseif { $low_uri starts_with "/b" } then { 
        pool POOL_1.1.1.1_8090
    } else {
         The else condition will catch everything else (e.g. /*)
        pool POOL_2.2.2.2_8090
    }
}

Cheers, Kai