apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-pv
  labels:
    type: local
spec:
  storageClassName: manual
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  hostPath:
    path: "/mnt/data/mysql"
    # DirectoryOrCreate: kubelet will create the dir if it doesn't exist,
    # preventing MySQL CrashLoopBackOff due to missing mount path.
    type: DirectoryOrCreate
  # IMPORTANT for multi-node clusters: uncomment nodeAffinity and set your
  # node's hostname so MySQL always schedules on the node that has the data.
  # Run: kubectl get nodes  to find the hostname.
  # nodeAffinity:
  #   required:
  #     nodeSelectorTerms:
  #       - matchExpressions:
  #           - key: kubernetes.io/hostname
  #             operator: In
  #             values:
  #               - YOUR-NODE-HOSTNAME