Forum Discussion
Force iRule to recompile
Hi Marc,
there is no build-in option to force an already established connections to use your updated iRules.
https://support.f5.com/kb/en-us/solutions/public/13000/200/sol13253.html
But you could implement some on-the-fly debug hooks using various coding techniques...
Example1: Using a static debug hook with options to enable/disable your debug code on-the-fly
when RULE_INIT {
set static::debug_hook_enable 1
set static::debug_logging_enable 1
}
when HTTP_REQUEST {
if { $static::debug_hook_enable } then {
Place your static debugging code here
}
if { $static::debug_logging_enable } then { log -noname local0.debug "DebugLog: [HTTP::uri] etc." }
Place your regular iRule code here
}Example2: Using a variable based debug hook with support to enable/disable/change the contained code on-the-fly
when RULE_INIT {
set static::debug_hook_enable 1
set static::debug_hook_code {
Place your dynamic debugging code here
Caution: The code insert here is not iControl checked for validity. Coding error would imediately kill every active session.
}
}
when HTTP_REQUEST {
if { $static::debug_hook_enable } then {
eval $static::debug_hook_code
}
Place your regular iRule code here
}Example3: Using a procedure based debug hook with support to enable/disable/change the contained code on-the-fly
when RULE_INIT {
set static::debug_hook_enable 1
}
when HTTP_REQUEST {
if { $static::debug_hook_enable } then {
eval [call DEBUG_PROC]
}
Place your regular iRule code here
}
proc DEBUG_PROC {} { return {
Place your dynamic debugging code here
Caution: The code insert here is not iControl checked for validity. Coding error would imediately kill every active session.
}}Note: Example2 or Example3 should be used with caution, since I haven't seen F5 employees to use/recomment/disagree this technique.
Cheers, Kai
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