Local path provisioner

Rancher's local-path-storage storage class enables dynamic provisioning of persistent volumes on Kubernetes worker.

curl https://raw.githubusercontent.com/rancher/local-path-provisioner/master/deploy/local-path-storage.yaml -O
kubectl apply -n local-path-storage -f local-path-storage.yaml

Known issues

No volume stats exported via kubelet_volume_stats_used_bytes metric
No capacity limit imposed. Not possible with ext4 filesystem, with XFS might be possible
No easy way to back up the volumes

Possible alternatives:

Longhorn with no redundancy
metal-stack/csi-lvm