Elasticsearch statefulset 不会在 rook-cephfs 上创建卷声明

问题描述

我正在尝试部署一个 elasticsearch statfulset 并通过 rook-ceph 存储类配置存储。

Pod 处于挂起模式是因为： 警告 FailedScheduling 87s default-scheduler 0/4 节点可用：4 个 pod 具有未绑定的直接 PersistentVolumeClaims。

全状态集如下所示：

apiVersion: apps/v1
kind: StatefulSet
Metadata:
  name: elasticsearch
  namespace: rcc
  labels:
    app: elasticsearch
    tier: backend
    type: db
spec:
  serviceName: es
  replicas: 3
  selector:
    matchLabels:
      app: elasticsearch
      tier: backend
      type: db
  template:
    Metadata:
      labels:
        app: elasticsearch
        tier: backend
        type: db
    spec:
      terminationGracePeriodSeconds: 300
      initContainers:
      - name: fix-the-volume-permission
        image: busyBox
        command:
        - sh
        - -c
        - chown -R 1000:1000 /usr/share/elasticsearch/data
        securityContext:
          privileged: true
        volumeMounts:
        - name: data
          mountPath: /usr/share/elasticsearch/data
      - name: increase-the-vm-max-map-count
        image: busyBox
        command:
        - sysctl
        - -w
        - vm.max_map_count=262144
        securityContext:
          privileged: true
      - name: increase-the-ulimit
        image: busyBox
        command:
        - sh
        - -c
        - ulimit -n 65536
        securityContext:
          privileged: true
      containers:
      - name: elasticsearch
        image: docker.elastic.co/elasticsearch/elasticsearch-oss:7.7.1
        ports:
        - containerPort: 9200
          name: http
        - containerPort: 9300
          name: tcp
        resources:
          requests:
            memory: 4Gi
          limits:
            memory: 6Gi
        env:
          - name: cluster.name
            value: elasticsearch
          - name: node.name
            valueFrom:
              fieldRef:
                fieldpath: Metadata.name
          - name: discovery.zen.ping.unicast.hosts
            value: "elasticsearch-0.es.default.svc.cluster.local,elasticsearch-1.es.default.svc.cluster.local,elasticsearch-2.es.default.svc.cluster.local"
          - name: ES_JAVA_OPTS
            value: -xms4g -Xmx4g
        volumeMounts:
        - name: data
          mountPath: /usr/share/elasticsearch/data
  volumeClaimTemplates:
  - Metadata:
      name: data
    spec:
      accessModes:
        - ReadWriteOnce
      storageClassName: rook-cephfs
      resources:
        requests:
          storage: 5Gi

未创建 pvc 的原因是：

normal FailedBinding 47s (x62 over 15m) persistentvolume-controller 没有持久卷可用于此声明，也没有设置存储类

知道我做错了什么吗？

解决方法

添加 rook-ceph-block 存储类并将存储类更改为它可以正常工作后没有任何问题。