Simplify irule (rather than if ,elseif, elseif ...)

And what problem if we using many "if" instead of if+elseif

like,

if {aaa}

if {bbb}

if {ccc}

I think you want something like:

when HTTP_REQUEST {

switch -glob [string tolower [HTTP::host]] {

    "/atm" {
        pool atm_HTTP
    }
    "/ammcontent*" {
        pool atm_HTTP
    }
}

}

You can then future proof it by redirecting based on URI and adding new lines easily.

    switch -glob [string tolower [HTTP::uri]] {
    "/ammcontent*" -
    "/htmlsite*" -
    "/publichtml*" -
    "/crmform*" -
    "/distsite*" -
    "/wttw*" -
    "/rules*" -
    "/attributeweb*" -
    "/contentweb*" } {pool atm_HTTP }
    default {pool default_pool }
}

Can I do like this?

when HTTP_REQUEST
if {[HTTP::uri] starts_with "/atm/"
            or [class match [HTTP::uri] contains my_uri_datagroup] }
                  {    pool atm_HTTP } 

and my_uri_datagroup is include with all those uri "/.."

Hello Teepan,

I hope this will work for you. Have you tried this ?

I would recommend converting the URL to lowercase before doing the comparison. Just make sure you always enter the values you want to check for in lowercase.

So, instead of:

if {[HTTP::uri] starts_with "/atm/"

[class match [HTTP::uri] contains my_uri_datagroup] }

You would use:

if {[string tolower[HTTP::uri]] starts_with "/atm/"

[class match [string tolower [HTTP::uri]] contains my_uri_datagroup] }

For scale-ability in the future if you ever needed to send traffic to other pools I would recommend creating your string data group with the URIs you want to match with values for the corresponding pool and use an iRule like this. I would also recommend setting the default pool on the virtual server itself.

when HTTP_REQUEST {
    if {[string tolower [HTTP::uri]] starts_with "/atm/"}{
        pool atm_HTTP
    }
    elseif {[class match [string tolower [HTTP::uri]] contains "/Common/my_uri_datagroup"]}{
        pool [class match -value [string tolower [HTTP::uri]] contains "/Common/my_uri_datagroup"]
    }
}