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K8S-030Low severity-4 points

No resource requests

Part of Architecture & Best Practices, which counts for 15% of the overall score. When this check fires it deducts 4 points from that category, once per scan, no matter how many places it turns up.

What it detects

A workload defines containers but no resource requests, so the scheduler cannot place it accurately and it may be evicted or land on an overcommitted node.

Why it matters

Without resource requests the scheduler has no idea how much CPU and memory a workload needs, so it can pack the pod onto an already busy node. The pod then competes for resources it was never guaranteed and is a prime candidate for eviction under pressure. Requests are how Kubernetes reserves capacity. This is a heuristic that checks for any requests block.

How to fix it

Add resources.requests to each container based on typical steady-state usage, and set limits alongside them. Measure with metrics-server or Prometheus rather than guessing where you can. A namespace LimitRange can supply defaults so nothing is scheduled with zero requests.

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