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harton's avatar
harton
Icon for Nimbostratus rankNimbostratus
Feb 23, 2011

Host to pool mapping

Hello, we are running version 9.4.6, and I've been asked to see if there is a way to map hosts to pools to reduce the number of public IPs we use.

 

 

Previously, we were doing the normal www.xyz.com/customer, but do to an application change we now have to specify the customer in the host.

 

 

 

We currently have to configure a separate public VIP for each one of our customers. We would like to be able use only one public IP, but be able to direct the customer to a specific pool based on the host. Here's an example:

 

 

 

customer1.xyz.com send to pool1

 

customer2.xyz.com send to pool2

 

customer3.xyz.com send to pool3

 

etc.

 

 

 

 

 

Here's one idea I had, but it's not scalable if I have a lot of customers.

 

 

 

when HTTP_REQUEST {

 

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

 

if { [HTTP::host] starts_with "customer1" } {

 

pool pool1

 

elseif { [HTTP::host] starts_with "customer2" } {

 

pool pool2

 

elseif { [HTTP::host] starts_with "customer3" } {

 

pool pool3

 

}

 

}

 

 

 

 

Is there a better way to do this? I have about 50 customers I need to configure this for.

 

 

 

Thanks,

 

Harton

 

application delivery
dev
devops
iRules

2 Replies

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  • Chris_Miller's avatar
    Chris_Miller
    Icon for Altostratus rankAltostratus
    Feb 23, 2011
    Either a switch statement or a datagroup mapped to pool name as value would be my choices.

    In the example above, you don't actually use both the switch statement and the if/else. It would look like this: 

     
 when HTTP_REQUEST { 
     switch -glob [string tolower [HTTP::host]] { 
           "customer1*" { pool pool1 } 
           "customer2*" { pool pool2 } 
           "customer3*" { pool pool3 } 
    } 
 }

    If there's a character mapping between customer and pool, you could make this extremely easy...where something like "customerx = poolx"
  • harton's avatar
    harton
    Icon for Nimbostratus rankNimbostratus
    Feb 24, 2011
    Wow. This looks simple enough. I'll give it a try. I was way over thinking this one.

     

     

    Thanks for the quick reply.