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#persistent-volumes

2 stories

Banner: unattached EBS volumes and old snapshots left behind by Kubernetes workloads

Cloud & Infrastructure Bug Report

Orphaned EBS volumes and snapshots after Kubernetes churn: 4,800 USD a month of nothing

Ryan Pham · Apr 16, 2025 · 6 min read

EBS storage kept rising while our clusters stayed the same size. Preview environments created PersistentVolumes with a Retain policy, deleted namespaces left the volumes behind, and a snapshot job never expired anything. We found, verified and deleted 612 volumes and 9,400 snapshots.

DevOps & CI/CD Bug Report

StatefulSet pod stuck Pending with volume node affinity conflict after a node moved zones

Priya Raghavan · Feb 25, 2025 · 7 min read

After a node group replacement, a Redis StatefulSet pod stayed Pending with 1 node(s) had volume node affinity conflict. Its EBS volume lived in eu-west-1a, and no node in that zone had room. How zonal volumes, WaitForFirstConsumer and topology interact, and how we made the StatefulSet survive node changes.