TRAFFIC SPLITTING WITH SESSION AFFINITY IN GLOBAL APPLICATION LOAD BALANCER NOT WORKING

[AKASHCHAND]

HI TEAM,

I'M USING CLOUD DEPLOY FOR MY CANARY DEPLOYMENT WITH TRAFFIC SPLITTING, AND ALSO USING GLOBAL APPLICATION LOAD BALANCER WITH IT FOR ROUTING, NOW I NEED TO USE SESSION AFFINITY BASED ON COOKIE WHICH I HAVE CONFIGURED FOR LOAD BALANCER, HOW CAN I ACHIEVE BOTH BECAUSE IT'S TAKING PRECEDENCE FOR TRAFFIC SPLITTING.

ANY ALTERNATIVE TO ACHIEVE BOTH (WEIGHTED TRAFFIC SPLITTING & SESSION AFFINITY) ?

[garisingh]

Can you describe your exact setup?  Are you configuring this using the Gateway API or are you directly configuring the load balancer?

[AKASHCHAND]

Hi Gari,

I'm configuring this using the Gateway API with Cloud Deploy for canary deployments. The Global Application Load Balancer is handling routing, and I have configured session affinity based on cookies using a GCPBackendPolicy. However, when traffic splitting is applied during a canary rollout, it seems to take precedence, and session affinity is not consistently maintained.

I want to achieve both weighted traffic splitting and session affinity together. Do you have any recommendations or alternatives to make this work?