Currently HTTP(S) L7 load balancer, created out of the box by GKE ingress, configures load balancing mode to RPS.I want to set the load balancing mode to Utilization. Is there a way to configure it within the manifest yaml file? (I don't wan't to set it manually)
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Now, without seeing your manifest file - I'm going to guess that you're talking about an L7 ILB - I would recommend that you use the API section of the GCP docs for reference as you edit your manifest. Translating the JSON reference there into YAML, it would probably look something like this:
name: l7-ilb-backend-service
backends:
- group: projects/[project-id]/zones/us-west1-a/instanceGroups/l7-ilb-backend-example
balancingMode: UTILIZATION
Untested, because there's no manifest to work with.