elastic.yaml

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: ssd
provisioner: kubernetes.io/gce-pd
parameters:
  type: pd-ssd
---
apiVersion: v1
kind: Service
metadata:
 name: es
 labels:
  service: elasticsearch
spec:
 clusterIP: None
 ports:
 - port: 9200
   name: serving
 - port: 9300
   name: node-to-node
 selector:
  service: elasticsearch
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: elasticsearch
  labels:
    service: elasticsearch
spec:
  serviceName: es
  replicas: 1
  selector:
    matchLabels:
      service: elasticsearch
  template:
    metadata:
      labels:
        service: elasticsearch
    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:6.2.4
        ports:
        - containerPort: 9200
          name: http
        - containerPort: 9300
          name: tcp
        resources:
          requests:
            memory: 1Gi
          limits:
            memory: 1Gi
        env:
          - name: cluster.name
            value: elasticsearch-cluster
          - name: node.name
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: ES_JAVA_OPTS
            value: -Xms512m -Xmx512m
        volumeMounts:
        - name: data
          mountPath: /usr/share/elasticsearch/data
  volumeClaimTemplates:
  - metadata:
      name: data
    spec:
      accessModes:
        - ReadWriteOnce
      storageClassName: ssd
      resources:
        requests:
          storage: 2Gi