Forum Discussion

Cirrostratus

Sep 14, 2021

Session Persistence based on http header value using iRule

Hello Kindly i need to apply Session Persistence based on http header : Payment application working as follow: At first request (Login) the server response with http header named "X-Token" with "...

application delivery

iRules

TMOS

xuwen
Sep 16, 2021
when HTTP_RESPONSE {
if { [HTTP::header exists "X-Token"] } {
if { [HTTP::header "X-Token"] != "" } {
persist add uie [HTTP::header "X-Token"]
}
}
}
when HTTP_REQUEST {
if { [HTTP::header exists "X-Auth-Token"] } {
set value [persist lookup uie [HTTP::header "X-Auth-Token"]]
log local0. "value is $value"
if { $value != "" } {
persist uie [HTTP::header "X-Auth-Token"]
}
}
}

oguzy

Cirrostratus

Hi Mohanad,

Your irule seems correct. Maybe you can add a fallback persistence in an else condition.

According to the article (Overview of universal persistence (f5.com), in addition to your irule, you should also create a universal persistence profile as follows:

To create a universal persistence profile and reference the persistence iRule you created in the previous procedure, perform the following procedure:

Log in to the Configuration utility.
Navigate to Local Traffic > Profiles.
From the Persistence menu, click Create.
Type a name for the universal persistence profile.
For Persistence, click Universal.
For Configuration, select the iRule check box, then click the persistence iRule you created.
Click Finished.