Help - starts_with subdomain pool routing?

Maybe something like this? I'm not sure if you're using this rule on an HTTPS VIP which ftp.newdomain.com resolves to or not. If you do, then you shouldn't redirect requests made to ftp.newdomain.com with a uri of / to https://ftp.newdomain.com/ or you'll get a redirect loop.

 
 when HTTP_REQUEST { 
    log local0. "[IP::client_addr]:TCP::client_port]: New request to [HTTP::host], [HTTP::uri]" 
  
     Checks the URI and forces to all lowercase for the check first for subdomain1 
    switch [string tolower [HTTP::host]] { 
       "subdomain1.newdomain.com" { 
          if { [HTTP::path] eq "/"}{ 
             log local0. "[IP::client_addr]:TCP::client_port]: Matched subdomain1.newdomain.com with URI of /.  Redirecting to https" 
             HTTP::redirect "https://subdomain1.newdomain.com/virtualdir/" 
             return 
          } else { 
             log local0. "[IP::client_addr]:TCP::client_port]: Matched subdomain1.newdomain.com with URI not /.  Using pool subomain1" 
             pool subdomain1 
             return 
          } 
       } 
       "ftp.newdomain.com" { 
          if { [HTTP::path] eq "/"}{ 
             log local0. "[IP::client_addr]:TCP::client_port]: Matched ftp.newdomain.com with URI of /.  Redirecting to https" 
     HTTP::redirect "https://ftp.newdomain.com/new_uri/" 
             return 
          } else { 
             log local0. "[IP::client_addr]:TCP::client_port]: Matched ftp.newdomain.com with URI not /.  Using pool newdomainftp" 
             pool newdomainftp 
             return 
          } 
       } 
    } 
     If we got here, no condition was matched, so use default pool 
    pool errorpage 
    log local0. "[IP::client_addr]:TCP::client_port]: No match. Using default pool"  
 } 
 

Aaron