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m_aremia's avatar
m_aremia
Icon for Nimbostratus rankNimbostratus
Nov 17, 2021

Insert Pool Name into serverside HTTP Header

Hello,   We currently use an irule to direct API calls to either a SOAP pool or REST pool based on URI Path. The Virtual Server has no Default pool configured. The way our current irule is config...
application delivery
iRules
LTM
m_aremia's avatar
m_aremia
Icon for Nimbostratus rankNimbostratus
Nov 18, 2021

There is no real pattern to the path and pool name and being so your suggestion would to use a datagroup, a class match condition to send the traffic to the pool with the following?

HTTP:header insert <value> <name>
  • jaikumar_f5's avatar
    jaikumar_f5
    Icon for MVP rankMVP
    Nov 18, 2021

    Create your datagroup with URI as record and pool name as value.

    then in your irule, use something like

    #take http uri
set httpuri [string tolower [HTTP::uri]]
 
#Compare against Datagroup and pull out the pool name
set poolname [class match -value $httpuri starts_with DATAGROUP_NAME]
 
#To insert the poolname as header
HTTP::header insert "X-Pool" $poolname
 
#To send the traffic to the respective pool
pool $poolname

    Hope you got the point !!!