k8s 部署 elasticsearch 单节点

• 创建 /data/es-data路径，更改/data/es-data 777

• 下载es镜像 docker pull elasticsearch:7.6.2

• 将下面的yaml复制到file.yaml,执行 kubectl apply -f file.yaml

• 查看 pods kubectl get pods

• 执行请求查看 curl http://${你的IP}:30105

  pv和pvc

  apiVersion: v1
  kind: PersistentVolume
  metadata:
  name: es-pv
  spec:
  capacity:
  storage: 5Gi
  accessModes:

  • ReadWriteMany
    persistentVolumeReclaimPolicy: Retain
    storageClassName: es-host
    hostPath:
    path: /data/es-data

  ---

  apiVersion: v1
  kind: PersistentVolumeClaim
  metadata:
  name: es-pvc
  spec:
  accessModes:

  • ReadWriteMany
    resources:
    requests:
    storage: 5Gi
    storageClassName: es-host

  ---

  apiVersion: v1
  kind: ConfigMap
  metadata:
  name: es
  data:
  elasticsearch.yml: |
  cluster.name: my-cluster
  node.name: node-1
  node.max_local_storage_nodes: 3
  network.host: 0.0.0.0
  http.port: 9200
  discovery.seed_hosts: [“127.0.0.1”, “[::1]”]
  cluster.initial_master_nodes: [“node-1”]
  http.cors.enabled: true
  http.cors.allow-origin: /.*/

  apiVersion: apps/v1
  kind: Deployment
  metadata:
  name: elasticsearch
  spec:
  selector:
  matchLabels:
  name: elasticsearch
  replicas: 1
  template:
  metadata:
  labels:
  name: elasticsearch
  spec:
  initContainers:
  - name: init-sysctl
  image: busybox
  command:
  - sysctl
  - -w
  - vm.max_map_count=262144
  securityContext:
  privileged: true
  containers:
  - name: elasticsearch
  image: elasticsearch:7.6.2
  imagePullPolicy: IfNotPresent
  resources:
  limits:
  cpu: 1000m
  memory: 2Gi
  requests:
  cpu: 100m
  memory: 1Gi
  env:
  - name: ES_JAVA_OPTS
  value: -Xms512m -Xmx512m
  ports:
  - containerPort: 9200
  - containerPort: 9300
  volumeMounts:
  - name: elasticsearch-data
  mountPath: /usr/share/elasticsearch/data/
  - name: es-config
  mountPath: /usr/share/elasticsearch/config/elasticsearch.yml
  subPath: elasticsearch.yml
  volumes:
  - name: elasticsearch-data
  persistentVolumeClaim:
  claimName: es-pvc
  # hostPath:
  # path: /data/es
  - name: es-config
  configMap:
  name: es

  ---

  apiVersion: v1
  kind: Service
  metadata:
  name: elasticsearch
  labels:
  name: elasticsearch
  spec:
  type: NodePort
  ports:

  • name: web-9200
    port: 9200
    targetPort: 9200
    protocol: TCP
    nodePort: 30105
  • name: web-9300
    port: 9300
    targetPort: 9300
    protocol: TCP
    nodePort: 30106
    selector:
    name: elasticsearch