fix(prod): raise pipelines memory request 1Gi→3Gi (stop eviction loop)

[sumit-badsara]

What

pipelines-prod mem request 1Gi → 3Gi (limit kept 4Gi), prod-only override.

Why

pipelines uses ~1978Mi = 193% of its 1Gi request. As Burstable QoS exceeding its request, the kubelet evicts it first under node memory pressure — repeatedly → 27 evicted zombie pods piled up + KubePodNotReady alert noise, and its memory-based HPA read ~193%/75% so it stayed pinned at maxReplicas. 3Gi request stops the evictions and lets the HPA scale on real load. Verified with helm template (renders memory: 3Gi).

🤖 Generated with Claude Code

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Note

Low Risk
Single prod Helm resource tuning with documented rationale; no app code or security surface changes, though it increases guaranteed memory per pod on nodes.

Overview
Prod-only override in k8s/prod/values.yaml sets explicit resources for pipelines-prod: memory request goes from the chart default 1Gi to 3Gi, while limits stay 4Gi CPU/2 (same as before).

This targets a Burstable pod running ~1978Mi (~193% of the old request), which was getting kubelet-evicted under node memory pressure (many evicted pods, KubePodNotReady noise) and kept the memory HPA saturated at maxReplicas (~193%/75%). Raising the request should reduce evictions and let autoscaling reflect real load.

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Greptile Summary

This PR raises the prod memory request for the pipelines deployment.

• Adds a prod-only resources override in k8s/prod/values.yaml.
• Changes the memory request from 1Gi to 3Gi.
• Keeps the existing CPU request, CPU limit, and memory limit values.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.

Important Files Changed

Filename	Overview
k8s/prod/values.yaml	Adds a prod-specific resources override that matches the chart's existing container resources shape.

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Learned From
websentry-ai/ai-gateway-data#448