• The default kubecost cache store was set to a second PV, which was breaking upgrades for some regional kubernetes clusters. This has been rolled back to use the existing PV by default, though it is small (1GB on most providers, though as small as 0.2GB if your provisioner supports that). Larger clusters should consider increasing PV size to 32GB by setting persistentVolume.storage.size . More detailed instructions about PV sizing are available at http://docs.kubecost.com/storage