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Forum Discussion

Jan_384807's avatar
Jan_384807
Icon for Nimbostratus rankNimbostratus
7 years ago

irule based on URI to select pool redirected back to http

Hi, I need help here. I'm using the same VS to create a irule to redirect to different server pools based on URI. The irule which I created redirects back to http which is not what I'm expected. ...
devops
iRules
Andy_McGrath's avatar
Andy_McGrath
Icon for Cumulonimbus rankCumulonimbus
7 years ago

For your iRule, which looks ok but the following is a little improved:

when HTTP_REQUEST {

    if {[string tolower [HTTP::host]] starts_with "test.abc.com"}{

        if {([string tolower [HTTP::uri]] starts_with "/testing") }{
            HTTP::respond 301 Location "https://[getfield [HTTP::host] : 1]/homepage"
        } elseif { [string tolower [HTTP::uri]] starts_with "/homepage" }{
            pool "poolB"
        }
    }
}

If your web server is then doing a redirect it maybe using 

http
protocol instead of 
https
as the server is listening on HTTP. Should be able to change this setting on the web server so the Location in any redirect HTTP response uses 
https
as the protocol or you could write an iRule to change the Location value in any response.

The following iRules is an example of performing this 

Location
header replacement:

when HTTP_RESPONSE {

    if {([HTTP::header exists "Location"]) && ([HTTP::header value "Location"] starts_with "http://test.abc.com"))} {
        HTTP::header replace "Location" [string map "http://test.abc.com" "https://test.abc.com" [HTTP::header value "Location"]]
    }
}