apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: mongodb-storage-class
  annotations:
    storageclass.kubernetes.io/is-default-class: 'false'
# Static class: the replica volumes are hostPath PVs generated one per member by
# MongoBootstrap.applyReplicaVolumes(), each pinned to one member via `claimRef`. It must NOT name a dynamic provisioner — with
# `rancher.io/local-path` the local-path controller also provisions for these PVCs, racing the
# static binder, so which volume a member ends up on is not deterministic. Two members landing
# on one directory is fatal: mongod dies on `WiredTiger.lock: fcntl: Resource temporarily
# unavailable`, since kind bind-mounts /data/mongodb from the host into every node.
provisioner: kubernetes.io/no-provisioner
reclaimPolicy: Retain
# Static hostPath PVs carry no nodeAffinity, so binding can safely wait for the scheduler.
volumeBindingMode: WaitForFirstConsumer