kubernetes 环境下部署 nacos 集群的持久化路径“不生效”问题请教

[cookgo]

遇到的疑点

• 在 kubernetes 里部署 nacos 集群的时候，集群部署成功了，能正常访问 nacos 了，但是检查 nacos 的日志存储的时候，发现文件并不存在?
• 进入 nacos 的容器里面，发现日志等文件都是存在的，但是登录 NFS 的挂载路径下，却没有任何文件，请问这是为何？ nacos 状态 /容器内日志 /NFS 浏览结果： https://imgur.com/a/4PtjUvK

YAML

存储类（ NFS 方式）

---
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  annotations:
    k8s.kuboard.cn/storageType: nfs_client_provisioner
  name: nfs-with-deleted
  resourceVersion: '351788'
parameters:
  archiveOnDelete: 'false'
provisioner: nfs-nfs-with-deleted
reclaimPolicy: Delete
volumeBindingMode: Immediate

---
apiVersion: apps/v1
kind: Deployment
metadata:
  annotations: {}
  labels:
    app: eip-nfs-nfs-with-deleted
  name: eip-nfs-nfs-with-deleted
  namespace: kube-system
  resourceVersion: '352584'
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: eip-nfs-nfs-with-deleted
  strategy:
    type: Recreate
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: eip-nfs-nfs-with-deleted
    spec:
      containers:
        - env:
            - name: PROVISIONER_NAME
              value: nfs-nfs-with-deleted
            - name: NFS_SERVER
              value: 10.2.0.108
            - name: NFS_PATH
              value: /volume1/nfs-k8s-unretain
          image: 'eipwork/nfs-subdir-external-provisioner:v4.0.2'
          imagePullPolicy: IfNotPresent
          name: nfs-client-provisioner
          resources: {}
          terminationMessagePath: /dev/termination-log
          terminationMessagePolicy: File
          volumeMounts:
            - mountPath: /persistentvolumes
              name: nfs-client-root
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      serviceAccount: eip-nfs-client-provisioner
      serviceAccountName: eip-nfs-client-provisioner
      terminationGracePeriodSeconds: 30
      volumes:
        - name: nfs-client-root
          persistentVolumeClaim:
            claimName: nfs-pvc-nfs-with-deleted

---
apiVersion: v1
kind: PersistentVolume
metadata:
  annotations:
    pv.kubernetes.io/bound-by-controller: 'yes'
  finalizers:
    - kubernetes.io/pv-protection
  name: nfs-pv-nfs-with-deleted
  resourceVersion: '351782'
spec:
  accessModes:
    - ReadWriteMany
  capacity:
    storage: '100'
  claimRef:
    apiVersion: v1
    kind: PersistentVolumeClaim
    name: nfs-pvc-nfs-with-deleted
    namespace: kube-system
    resourceVersion: '351779'
    uid: 2d84dd98-1e45-42e8-b343-21b21e003ca2
  nfs:
    path: /volume1/nfs-k8s-unretain
    server: 10.2.0.108
  persistentVolumeReclaimPolicy: Retain
  storageClassName: nfs-storageclass-provisioner
  volumeMode: Filesystem

---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  annotations:
    pv.kubernetes.io/bind-completed: 'yes'
  finalizers:
    - kubernetes.io/pvc-protection
  name: nfs-pvc-nfs-with-deleted
  namespace: kube-system
  resourceVersion: '351814'
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: '100'
  storageClassName: nfs-storageclass-provisioner
  volumeMode: Filesystem
  volumeName: nfs-pv-nfs-with-deleted

PVC

---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  annotations:
    pv.kubernetes.io/bind-completed: 'yes'
    pv.kubernetes.io/bound-by-controller: 'yes'
    volume.beta.kubernetes.io/storage-provisioner: nfs-nfs-with-deleted
    volume.kubernetes.io/storage-provisioner: nfs-nfs-with-deleted
  finalizers:
    - kubernetes.io/pvc-protection
  name: nacos-pvc
  namespace: default
  resourceVersion: '353666'
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 5Gi
  storageClassName: nfs-with-deleted
  volumeMode: Filesystem
  volumeName: pvc-b5cba474-47cb-44ee-b310-9722af14b2e1

StatefulSet

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  labels:
    app: nacos
  name: nacos
  namespace: default
  resourceVersion: '355133'
spec:
  podManagementPolicy: OrderedReady
  replicas: 3
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: nacos
  serviceName: nacos-headless
  template:
    metadata:
      annotations:
        kubectl.kubernetes.io/restartedAt: '2022-11-23T10:53:19+08:00'
        pod.alpha.kubernetes.io/initialized: 'true'
      creationTimestamp: null
      labels:
        app: nacos
    spec:
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: app
                    operator: In
                    values:
                      - nacos
              topologyKey: kubernetes.io/hostname
      containers:
        - env:
            - name: NACOS_REPLICAS
              value: '3'
            - name: SERVICE_NAME
              value: nacos-headless
            - name: DOMAIN_NAME
              value: cluster.local
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: metadata.namespace
            - name: MYSQL_SERVICE_DB_NAME
              valueFrom:
                configMapKeyRef:
                  key: mysql.db.name
                  name: nacos-configmap
            - name: MYSQL_SERVICE_HOST
              valueFrom:
                configMapKeyRef:
                  key: mysql.host
                  name: nacos-configmap
            - name: MYSQL_SERVICE_PORT
              valueFrom:
                configMapKeyRef:
                  key: mysql.port
                  name: nacos-configmap
            - name: MYSQL_SERVICE_USER
              valueFrom:
                configMapKeyRef:
                  key: mysql.user
                  name: nacos-configmap
            - name: MYSQL_SERVICE_PASSWORD
              valueFrom:
                secretKeyRef:
                  key: password
                  name: mysql-secret
            - name: NACOS_SERVER_PORT
              value: '8848'
            - name: NACOS_APPLICATION_PORT
              value: '8848'
            - name: PREFER_HOST_MODE
              value: hostname
          image: 'nacos/nacos-server:latest'
          imagePullPolicy: IfNotPresent
          name: nacos
          ports:
            - containerPort: 8848
              name: client-port
              protocol: TCP
            - containerPort: 9848
              name: client-rpc
              protocol: TCP
            - containerPort: 9849
              name: raft-rpc
              protocol: TCP
          resources:
            requests:
              cpu: '2'
              memory: 2Gi
          terminationMessagePath: /dev/termination-log
          terminationMessagePolicy: File
          volumeMounts:
            - mountPath: /home/nacos/plugins/peer-finder
              name: data
              subPath: peer-finder
            - mountPath: /home/nacos/data
              name: data
              subPath: data
            - mountPath: /home/nacos/logs
              name: data
              subPath: logs
      dnsPolicy: ClusterFirst
      initContainers:
        - image: 'nacos/nacos-peer-finder-plugin:1.1'
          imagePullPolicy: IfNotPresent
          name: peer-finder-plugin-install
          resources: {}
          terminationMessagePath: /dev/termination-log
          terminationMessagePolicy: File
          volumeMounts:
            - mountPath: /home/nacos/plugins/peer-finder
              name: data
              subPath: peer-finder
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30
      volumes:
        - emptyDir: {}
          name: data
  updateStrategy:
    rollingUpdate:
      partition: 0
    type: RollingUpdate

Service

---
apiVersion: v1
kind: Service
metadata:
  annotations: {}
  labels:
    app: nacos
  name: nacos-headless
  namespace: default
  resourceVersion: '352618'
spec:
  clusterIP: 10.233.251.189
  clusterIPs:
    - 10.233.251.189
  externalTrafficPolicy: Cluster
  internalTrafficPolicy: Cluster
  ipFamilies:
    - IPv4
  ipFamilyPolicy: SingleStack
  ports:
    - name: server
      nodePort: 30038
      port: 8848
      protocol: TCP
      targetPort: 8848
    - name: client-rpc
      nodePort: 31038
      port: 9848
      protocol: TCP
      targetPort: 9848
    - name: raft-rpc
      nodePort: 31039
      port: 9849
      protocol: TCP
      targetPort: 9849
  selector:
    app: nacos
  sessionAffinity: None
  type: NodePort

[NoahNye]

volumes:
- emptyDir: {}
name: data

没有挂到你的 nfs

[idblife]

说个题外话
nacos 这种不需要挂 pv

[CheckMySoul]

同 1 楼，StatefulSet 中没有使用 nfs

[b1ghawk]

说个题外话
nacos 这种不需要挂 pv 。

[cookgo]

如果 nacos 不挂载 PV ，那么用什么方式保存 nacos 的日志呢？

[cookgo]

确实如 1 楼所说，我 StatefulSet 原始的 yaml 里有

volumes:
- name: data
persistentVolumeClaim:
claimName: nacos-pvc
- name: nacos-configmap
configMap:
name: nacos-configmap

但是通过 Kuboard 创建的却没了，这个细节确实没注意。

[tudou1514]

举例：sts 要用这种方式。
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: data
resources:
requests:
storage: 200Gi

[tudou1514]

@tudou1514 格式错了，要缩进的。你看下官方的，