Forum Discussion
Mohanad
Cirrostratus
CirrostratusSession 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 "fb9c2bb6-80f6-16c3-afcd-84e98976a4b7"
- The rest of http requests will have header name "X-Auth-Token" with the same value "fb9c2bb6-80f6-16c3-afcd-84e98976a4b7" assigned by the server
I want to make sure that the client land on the same server that sent the "X-Token"
I searched for iRule that match the http header, the following iRule will work or need to modify it?
when HTTP_REQUEST {
if { [HTTP::header exists "X-Auth-Token"]} {
persist uie [HTTP::header "X-Auth-Token"]
}
}Q
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"]
}
}
}
oguzyHi 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.
MohanadThank you Oguzy, i know this requires persistence profile
- xuwen
Cumulonimbus
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"]
}
}
}