爱数博客

     爱数AnyRobot采用K8S集群环境，在搭建好的AnyRobot环境中，存在许多Pod，其中有一部分Pod数据是需要长久保存的，在K8S中，长久数据一般存储在PV中，那Pod是如何实现，如何把自身数据存储在PV里面的呢？本文讲重点讲解该方面知识。

apiVersion: v1
kind: PersistentVolume
metadata:
  annotations:
    pv.kubernetes.io/bound-by-controller: "yes"
  finalizers:
  - kubernetes.io/pv-protection
  labels:
    app: fine-report
  name: fine-report-pv   ---PV名为fine-report-pv
spec:
  accessModes:
  - ReadWriteOnce
  capacity:
    storage: 2Gi
  claimRef:
    apiVersion: v1
    kind: PersistentVolumeClaim
    name: data-fine-report-0     ---被名为data-fine-report-0引用
    namespace: anyrobot
  local:
    path: /mnt/data1/fine-report   ---为本地/mnt/data1/fine-report路径
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          - node109
  persistentVolumeReclaimPolicy: Retain
  storageClassName: local-storage   ---使用local-storage storageClassName
  volumeMode: Filesystem
status:
  phase: Bound

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  annotations:
    pv.kubernetes.io/bind-completed: "yes"
    pv.kubernetes.io/bound-by-controller: "yes"
  finalizers:
  - kubernetes.io/pvc-protection
  labels:
    anyrobot-module: fine-report
    cluster: anyrobot
    fine-report-anyrobot-service: "true"
  name: data-fine-report-0   ---PVC名为data-fine-report-0
  namespace: anyrobot
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 2Gi    --请求大小为2G
  selector:
    matchLabels:
      app: fine-report   
  storageClassName: local-storage
  volumeMode: Filesystem
  volumeName: fine-report-pv  ---PV名字
status:
  accessModes:
  - ReadWriteOnce
  capacity:
    storage: 2Gi
  phase: Bound

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"storage.k8s.io/v1","kind":"StorageClass","metadata":{"annotations":{},"name":"local-storage"},"provisioner":"kubernetes.io/no-provisioner","volumeBindingMode":"WaitForFirstConsumer"}
  name: local-storage  ---SC名字
  resourceVersion: "8201"
provisioner: kubernetes.io/no-provisioner
reclaimPolicy: Delete     ---回收相关策略
volumeBindingMode: WaitForFirstConsumer

 tolerations:
  - effect: NoExecute
    key: node.kubernetes.io/not-ready
    operator: Exists
    tolerationSeconds: 300
  - effect: NoExecute
    key: node.kubernetes.io/unreachable
    operator: Exists
    tolerationSeconds: 300
  volumes:
  - name: data
    persistentVolumeClaim:
      claimName: data-fine-report-0   # PVC名称