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我一直在尝试在我们的数据中心托管的 kubernetes 上配置 Elasticsearch 集群，在 CentOS 7 上配置 1 个主节点和 3 个节点。下面是我一直在使用的配置文件。我浏览了许多文档，它们都有一个共同点，那就是每个人都在 Azure、AWS 或 GCP 上做过，每个人都在使用动态卷配置，所以有人可以帮我解决以下问题。

es_namespace.yaml

kind: Namespace
apiVersion: v1
metadata:
  name: elastic

kind: Service
apiVersion: v1
metadata:
  name: elasticsearch
  namespace: elastic
  labels:
    app: elasticsearch
spec:
  selector:
    app: elasticsearch
  clusterIP: None
  ports:
    - port: 9200
      name: rest
    - port: 9300
      name: inter-node

es_statefulset.yaml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: es-cluster
  namespace: elastic
spec:
  serviceName: elasticsearch
  replicas: 3
  selector:
    matchLabels:
      app: elasticsearch
  template:
    metadata:
      labels:
        app: elasticsearch
    spec:
      containers:
      - name: elasticsearch
        image: docker.elastic.co/elasticsearch/elasticsearch:7.8.0
        resources:
            limits:
              cpu: 1000m
              memory: 2Gi
            requests:
              cpu: 500m
              memory: 1Gi
        ports:
        - containerPort: 9200
          name: rest
          protocol: TCP
        - containerPort: 9300
          name: inter-node
          protocol: TCP
        volumeMounts:
        - name: data
          mountPath: /usr/share/elasticsearch/data
        env:
          - name: cluster.name
            value: k8s-logs
          - name: node.name
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: discovery.seed_hosts
            value: "es-cluster-0.elasticsearch,es-cluster-1.elasticsearch,es-cluster-2.elasticsearch"
          - name: cluster.initial_master_nodes
            value: "es-cluster-0,es-cluster-1,es-cluster-2"
          - name: ES_JAVA_OPTS
            value: "-Xms512m -Xmx512m"
      initContainers:
      - name: fix-permissions
        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-vm-max-map
        image: busybox
        command: ["sysctl", "-w", "vm.max_map_count=262144"]
        securityContext:
          privileged: true
      - name: increase-fd-ulimit
        image: busybox
        command: ["sh", "-c", "ulimit -n 65536"]
        securityContext:
          privileged: true
  volumeClaimTemplates:
  - metadata:
      name: data
      labels:
        app: elasticsearch
    spec:
      accessModes: [ "ReadWriteOnce" ]
      storageClassName: standard
      resources:
        requests:
          storage: 10Gi

错误：

警告 FailedScheduling 59m default-scheduler 0/4 个节点可用：4 个 pod 有未绑定的立即 PersistentVolumeClaims。

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