与本地卷一起使用时出现错误“未知字段 hostPath”Kubernetes Elasticsearch

Question

我正在尝试使用本地驱动器卷部署 elastic-search in kubernetes，但出现以下错误，请您纠正我。 使用 ubuntu 16.04 Kubernetes v1.11.0 Docker 版本 17.03.2-ce 与本地卷一起使用时出现错误“未知字段 hostPath”Kubernetes Elasticsearch

error: error validating "es-d.yaml": error validating data: ValidationError(StatefulSet.spec.template.spec.containers[1]): unknown field "hostPath" in io.k8s.api.core.v1.Container; if you choose to ignore these errors, turn validation off with --validate=false

这是statefulSet的yaml文件：

apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: es-data
  labels:
    component: elasticsearch
    role: data
spec:
  serviceName: elasticsearch-data
  replicas: 1
  template:
    metadata:
      labels:
        component: elasticsearch
        role: data
    spec:
      initContainers:
      - name: init-sysctl
        image: alpine:3.6
        command:
        - sysctl
        - -w
        - vm.max_map_count=262144
        securityContext:
          privileged: true
      containers:
      - name: es-data
        image: quay.io/pires/docker-elasticsearch-kubernetes:6.3.0
        env:
        - name: NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: CLUSTER_NAME
          value: myesdb
        - name: NODE_MASTER
          value: "false"
        - name: NODE_INGEST
          value: "false"
        - name: HTTP_ENABLE
          value: "true"
        - name: ES_JAVA_OPTS
          value: -Xms256m -Xmx256m
        - name: PROCESSORS
          valueFrom:
            resourceFieldRef:
              resource: limits.cpu
        resources:
          requests:
            cpu: 0.25
          limits:
            cpu: 1
        ports:
        - containerPort: 9200
          name: http
        - containerPort: 9300
          name: transport
        livenessProbe:
          tcpSocket:
            port: transport
          initialDelaySeconds: 20
          periodSeconds: 10
        readinessProbe:
          httpGet:
            path: /_cluster/health
            port: http
          initialDelaySeconds: 20
          timeoutSeconds: 5
        volumeMounts:
        - name: storage
          mountPath: /es
        volumes:
      - name: storage

Answer 1

你有错误的结构。 volumes 必须与containers、initContainers 处于同一级别。

apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: es-data
  labels:
    component: elasticsearch
    role: data
spec:
  serviceName: elasticsearch-data
  replicas: 1
  template:
    metadata:
      labels:
        component: elasticsearch
        role: data
    spec:
      initContainers:
      - name: init-sysctl
        image: alpine:3.6
        command:
        - sysctl
        - -w
        - vm.max_map_count=262144
        securityContext:
          privileged: true
      containers:
      - name: es-data
        image: quay.io/pires/docker-elasticsearch-kubernetes:6.3.0
        env:
        - name: NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: CLUSTER_NAME
          value: myesdb
        - name: NODE_MASTER
          value: "false"
        - name: NODE_INGEST
          value: "false"
        - name: HTTP_ENABLE
          value: "true"
        - name: ES_JAVA_OPTS
          value: -Xms256m -Xmx256m
        - name: PROCESSORS
          valueFrom:
            resourceFieldRef:
              resource: limits.cpu
        resources:
          requests:
            cpu: 0.25
          limits:
            cpu: 1
        ports:
        - containerPort: 9200
          name: http
        - containerPort: 9300
          name: transport
        livenessProbe:
          tcpSocket:
            port: transport
          initialDelaySeconds: 20
          periodSeconds: 10
        readinessProbe:
          httpGet:
            path: /_cluster/health
            port: http
          initialDelaySeconds: 20
          timeoutSeconds: 5
        volumeMounts:
        - name: storage
          mountPath: /es
      volumes:
      - name: storage

你可以找到example here。

Answer 2

检查你的格式，hostPath 不应该在容器部分，'volume'不在它的位置。