How to add SelectedMember to URI

It can also be the last octet of the selected/responding servers IP Address if it makes things more simple.

 

 

I'm not sure if this can be done without redirecting the user to another page (every time)...?

You'd probably be better off changing the application to insert the server name in the page content somehow.

 

 

You could insert it into the URI in the HTTP_RESPONSE event after collecting it in the HTTP_REQUEST event (LB::selected I think), but then you'd have to also strip it back out with every HTTP_REQUEST, because if you send it to the client, it will make it's next request to that URI, which I'm assuming the app wouldn't know how to handle.

 

 

So roughly the rule logic would have to be (I'm not in front of a box to test syntax so this is just an outline off the top of my head...)

 

 

when HTTP_REQUEST {

 

put URI back the way it should be

 

select pool member

 

put that selection in a variable

 

lookup that variable against an array of names

 

set another variable to hold the name

 

 

when HTTP_RESPONSE {

 

change URI to include name from previous variable

 

 

That's a lot of extra processing it seems.

 

 

Denny

I'm already running a HTTP_Request iRule for every request which validates and enforces a specific URL pattern.

 

 

I could add a line to that which stores the selected node's IP address into a variable.

 

 

That variable would then be available to the HTTP_Response? Such that the variable's value would be accurate to the matching HTTP_Request? I just want to make sure that the client's selected node is valid and that I can see the value in the URL.

 

 

I'm not sharp on the syntax for modifying the URI query and such... I could not find a reference to edit the URI Query... just to read it. I'm also not sure how to set a variable that would be usable by the HTTP_Response if set by the HTTP_Request.

 

 

Thanks for your help.

 

 

Ryan

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