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Forum Discussion

JWhitesPro_1928's avatar
JWhitesPro_1928
Icon for Cirrostratus rankCirrostratus
Oct 03, 2016

Best way to rewrite and choose different pool at same time

What would be the best method to achieve the following:   If incoming url starts with "/test" replace /test with just "/" and choose pool "test"   I've done some of my other pool selection wit...
application delivery
iRules
LTM
VernonWells's avatar
VernonWells
Icon for Employee rankEmployee
Oct 03, 2016
when HTTP_REQUEST {
    if { [HTTP::path] equals "/test" } {
        HTTP::path "/"
        pool test
    }
}

This will match exactly (and only) /test and nothing else.

Josh_Jacobson_4's avatar
Josh_Jacobson_4
Icon for Altostratus rankAltostratus
Oct 04, 2016

You can use [HTTP::uri] to preserve any GET vars (if you don't care about GET vars [HTTP::path] is fine too of course). Here's one way to strip the first segment of the path and send the rest on. I broke it out into two statements in case that's easier to read, and there's a one-liner version of it at the end too.

when HTTP_REQUEST {
if { [HTTP::uri] starts_with "/test/" } {
     This will find the position of the second slash (starts searching at position 1; first slash is position 0)
    set slashpos [string first / [HTTP::uri] 1]
     Substring from the position of the second slash through the end of the URI
    set newuri [substr [HTTP::uri] $slashpos]
     Here's the one-liner to accomplish the same thing (it was just easier to comment as two statements):
    set newuri [substr [HTTP::uri] [string first / [HTTP::uri] 1]]
    log local0. "New URI: $newuri"
    HTTP::uri $newuri
    pool test
}
}