K8s存储原理

PV与PVC

PV是集群级存储资源，PVC声明式存储需求。

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv-volume
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Delete
​

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pvc-volume
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi
​

StorageClass

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: standard
provisioner: kubernetes.io/aws-ebs
parameters:
  type: gp2
reclaimPolicy: Delete
​

CSI驱动

CSI驱动实现存储供应商无关。

chmod 644 /tmp/k8s_storage.md
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