Submit feedback on
Orphaned and Overprovisioned Resources in GKE Clusters
We've received your feedback.
Thanks for reaching out!
Oops! Something went wrong while submitting the form.
Close
Orphaned and Overprovisioned Resources in GKE Clusters
Yisrael Gross
Service Category
Compute
Cloud Provider
GCP
Service Name
GCP GKE
Inefficiency Type
Inefficient Configuration
Explanation

As environments scale, GKE clusters tend to accumulate artifacts from ephemeral workloads, dev environments, or incomplete job execution. PVCs can continue to retain Persistent Disks, Services may continue to expose public IPs and provision load balancers, and node pools are often oversized for steady-state demand. This results in cloud spend that is not aligned with application activity.

Organizations that lack visibility into Kubernetes-level resource usage often miss these inefficiencies because GCP billing tools surface usage at the infrastructure level, not the Kubernetes object level.

Relevant Billing Model

GKE clusters incur costs for node VMs (in Standard mode) or pod resources and control plane (in Autopilot mode), Persistent Disks via PVCs, and external IP addresses and load balancers from exposed Services. Orphaned objects like unused volumes, idle services, and overprovisioned node pools continue to generate charges even when not tied to running workloads.

Detection
  • Identify Persistent Disks not mounted by any pod via PVCs
  • Find Services that expose public IPs or external load balancers with no active backend
  • Review node pools for consistently low utilization
  • Audit for stale namespaces or environments created by CI/CD pipelines
  • Check for lingering objects from terminated jobs or Helm charts
  • Look for secrets or config maps unused by any workload
  • Check for unused Network Endpoint Groups (NEGs) from deleted services
  • Audit for abandoned Ingress resources that may retain Global Load Balancers
Remediation
  • Delete PVCs with unmounted Persistent Disks
  • Clean up Services with no backend to release IPs and load balancers
  • Scale down overprovisioned node pools
  • Prune unused namespaces and workloads
  • Implement governance for ephemeral environments and pipelines
Relevant Documentation
Submit Feedback