Select Pool Based on URI with Host Rewrite

Question

Hi All, In short we are going from SharePoint 2007 to 2010. To ease the pain of migrating sites I suggested we use the F5 LTMs to redirect based on the URI. I attempted this with a http class until I discovered that SharePoint checks the host name in the HTTP header. I've been told we might have as many as 30 URIs/Paths to redirect to the old 2007 instance and will need to remove them from the list so to speak as they migrate to 2010. I've done my very best to try to piece together a script that will do the trick and unfortunately I'm falling short :( &nbsp;
&nbsp;Summary:&nbsp;http://www.abc.com
&nbsp;/uri1 
&nbsp;/uri2 
&nbsp;/uri3 
&nbsp;/uri4 
&nbsp;etc. needs to go to sharepoint2007pool and change host from www.abc.com to www.xyz.com. Everything else needs to go to sharepoint2010pool with no host change. &nbsp;
&nbsp;Here is my attempt to accomplish: 
&nbsp;when HTTP_REQUEST { 
&nbsp;       switch -glob [HTTP::path]
&nbsp;       if { [HTTP::path]] "/sites/dts*" } {
&nbsp; Rewrite host header value and select pool 
&nbsp;          HTTP::header replace Host www.xyz.com    
&nbsp;         pool sharepoing2007pool
&nbsp;       }
&nbsp;       else {
&nbsp;        pool sharepoint2010pool
&nbsp;      }
&nbsp;}&nbsp;
&nbsp;***For ease of adding and removing multiple sites, I'm very interested in how I might use the datagroups. That would make it much easier for me to add and remove sites as needed.***&nbsp;

hooleylist · Answer

Hi Jeff, 
&nbsp;  
&nbsp; So are all of the sites on www.abc.com but with different URIs?  Which LTM version are you running? 
&nbsp;  
&nbsp; Aaron

jba3126 · Answer

All of the request will come in as www.abc.com but with different URI; however when the request is passed to the web server it will need to be different based on which sharepoint instance it goes to.  Apparently sharepoint looks at the host header.  The sharepoint team is going to provide us with a list of URI that will need to go to the old sharepoint.  Everything else can just go straight to the new sharepoint pool.  In reading other posts I'm wondering if I should try to create a datagroup/class.  Anything that matches the class would get sent to the old pool and the host would be changed and everything else would be sent to the new pool and the host header left in tact. 
&nbsp;  
&nbsp; Example - 
&nbsp; New Web Server Pool 
&nbsp; Comes in www.abc.com 
&nbsp; /uri1 - New Site 
&nbsp; /uri2 - New Site 
&nbsp;  
&nbsp; When the request is sent to the new web server pool the host would stay in tact - so www.abc.com/uri1 or www.abc.com/uri2 
&nbsp;  
&nbsp; Old Web Server Pool 
&nbsp; Comes in www.abc.com 
&nbsp; /uri3 - Old Site 
&nbsp; /uri4 - Old Site 
&nbsp;  
&nbsp; When the request is sent to the old web server pool the host would need to change - so www.xyz.com/uri3 or www.xyz.com/uri4 
&nbsp;  &nbsp;

colin_walker_12 · Answer

It sounds like the class approach would be solid. If you have a set list of URIs that need to be redirected, that would be the easiest way to do it, and also the most manageable long term. 
&nbsp;  
&nbsp; Now, are you looking to do a full client redirect or to re-write the header in line both directions? 
&nbsp;  
&nbsp; Colin &nbsp;

kevin_davies_40 · Answer

when HTTP_REQUEST {  
  if { [string tolower [HTTP::path]] starts_with "/sites/dts" } { 
     Rewrite host header value and select pool  
    HTTP::header replace Host www.xyz.com     
    pool sharepoing2007pool 
  } 
  else { 
    pool sharepoint2010pool 
  } 
}

You pretty much had it... just left a switch statement in that you didn't need anymore 🙂 For robustness I added a lowercase conversion.
 Jarvil

jba3126 · Answer

That is a great question.  I would like this to be as transparent as possible to the end user.  In other words I want the users typing www.abc.com from here on out.  If the site did a full redirect, I'd be a afraid I'd start having users bookmark the old www.xyz.com site.

Forum Discussion

Select Pool Based on URI with Host Rewrite

Recent Discussions

CRYPTO SCAM RECOVERY SERVICE – A LEGIT COMPANY FOR HIRE- DIGITAL TECH GUARD RECOVERY

Bypass "Bad unescape" in Body POST (ASM, POST, JSON)

URL redirect

Bypass the character for Evasion technique Detected violation

URL redirection

Related Content

Select pool based on HTTP host header

Demystifying Time-based OTP

Rewriting iRules...LIVE!

Rewriting Redirects

Select pool member based on HTTP query string parameter