{{- if .Values.longhorn.enabled }}
# Tenant data StorageClass. Tower's instance overlays bind here in
# Phase 6 (Tower stamps storageClassName=longhorn-tenants on new
# instance PVCs). Existing instances on local-path stay where they
# are — Longhorn additive, doesn't replace.
#
# `replicaCount` comes from values; Standalone tier ships replicas=1
# (durability is hourly S3 backup, not local mirrors).
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: longhorn-tenants
  annotations:
    # Not the cluster default — explicit opt-in only via Tower's
    # PVC-stamp logic. (Two default storage classes is a k8s
    # misconfig; k3s already provides local-path as default.)
    storageclass.kubernetes.io/is-default-class: "false"
provisioner: driver.longhorn.io
allowVolumeExpansion: true
reclaimPolicy: Delete
volumeBindingMode: Immediate
parameters:
  numberOfReplicas: "{{ .Values.longhorn.replicas }}"
  staleReplicaTimeout: "30"
  fromBackup: ""
  # fsType: ext4 is the default; explicit so the contract is in Git.
  fsType: "ext4"
{{- end }}
# NOTE: The CSI VolumeSnapshotClass (snapshot.storage.k8s.io/v1) lives
# in Phase 3 of ADR 0003, alongside the Tower code that consumes it
# AND the external-snapshotter CRDs (which Longhorn does not ship —
# they're a separate install). Adding VolumeSnapshotClass here would
# fail the initial sync. Phase 3 lands all three together: snapshotter
# CRDs + controller + VolumeSnapshotClass + Tower VolumeClone path.