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habib_Khan's avatar
habib_Khan
Icon for Nimbostratus rankNimbostratus
Jan 12, 2016

Irule is not working. KIndly help.

I have a vip with below are the 2 irules confirgured for redirecting to different pools. The irules are not working when url is tried with htt://abc.com/socket.io. Please correct if irules.   irul...
application delivery
iRules
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Jan 12, 2016

Hi Habib,

I've optimized the iRules for you. Instead of chaining multiple 

[if { $condition} then { action }]
commands, you should use a single 
[if { $condition} then { action } elseif { $condition2 } then { action }]
command. Using the later would stop comparsion after the first match and would save some CPU cycles.

In addition I've integrated the abc.com requirement for your. Please review and tweak the desired actions for this URL as needed...

iRule1:

when HTTP_REQUEST { 
    set low_hostname [string tolower [HTTP::host]] 
    set low_uri [string tolower [HTTP::uri]]
    if { $low_hostname contains "topssit" } then { 
        pool topssit-http 
    } elseif { ( $low_hostname contains "topsstg" ) and ( $low_uri starts_with "/socket.io" ) } then {
        pool topsstg-socket-pool
    } elseif { ( $low_hostname equals "abc.com" ) and ( $low_uri starts_with "/socket.io" ) } then {
        pool abc_com-socket-pool
    } elseif { $low_hostname contains "topsstg" } then { 
        pool topsstg-pool 
    } elseif { $low_hostname contains "topstrg" } then { 
        pool topstrg-pool 
    } elseif { $low_hostname contains "topsfat" } then { 
        pool topsfat-prod-pool 
    } else {
         Rely on virtual server configuration
    }
}

iRule2:

when HTTP_REQUEST { 
    if { ( [HTTP::uri] equals "/" ) or ( [HTTP::uri] equals "/tops" ) } then { 
        HTTP::redirect "http://[HTTP::host]/tops/" 
    }
}

Cheers, Kai