Select node based on URI value

Here's an example iRule to do URI based pool member selection with persistence:

 

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/Select_pool_member_based_on_HTTP_query_string_parameter.html

 

 

The iRule allows clients to select a pool member based on a parameter set in the HTTP query string. The manual selection can be specified on any URI by appending member=1 to the query string. On responses, a session cookie is set to ensure the client requests are manually persisted to the same server as long as the browser is kept open. To have LTM clear the cookie, the member number can be set in the URI to 0.

 

 

For versions lower than 10.0, you could use a shell script run nightly to create a datagroup containing all of the pool members, regardless of state. This could be done on any LTM version. Then replace [active_members -list ..] with [lindex [lsort $::my_pool_members_class] $member_num] for 9.x or [lindex [lsort [class -get my_pool_members_class]] $member_num] for 10.x.

 

 

 

Aaron