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Kubernetes right-sizing before budget drift becomes a platform issue

A practical way to reduce idle CPU and memory allocation using rightsizing, descheduling, and policy cleanup.

About this post

  • Implementation-first perspective from InfraShift engineers.
  • Patterns and decisions drawn from real cloud and DevOps delivery work.
  • Covering Kubernetes, AWS, Azure, CI/CD, FinOps, and infrastructure operations.
This post walks through how InfraShift approaches Kubernetes efficiency work when clusters are already in production. We start with actual workload behavior, not spreadsheet targets. Then we combine rightsizing, descheduler policies, autoscaler review, and node pool cleanup to remove waste without pushing instability into the platform team. The important part is sequencing. If requests and limits are wrong, autoscaling is noisy. If descheduling is enabled without placement guardrails, workloads get shuffled without real savings. A good optimization pass fixes those dependencies in the right order.
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