adding/deleting class member by iRule

Well, this would be cool... I'm not sure about the approach though. Here are the problems:

 

a) log can only log one line at a time max 1024 chars.

 

b) RULE_INIT is a bit tricky to force to evaluate (it's only evaluated when a rule has been modified).

 

 

Another approach that I'm a little surprised no one has done yet is the following:

 

Create a dedicated tcp/http VIP. In the HTTP_REQUEST event, if the request is something like: "/vip_stat", then generate your payload into a variable and then use HTTP::respond to return the content. The same vip could report on other tcl statistics as well. If the request is invalid, simply use HTTP::respond to throw a 404. The vip would never really connect to anything on the backside. Then you could use curl or something to retrieve the status into a file from either the host or any other box...