in-cluster-es.yml

apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: es-node
  labels:
    app: es-cluster
spec:
  serviceName: elasticsearch
  replicas: 2
  updateStrategy:
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: es-node
    spec:
      securityContext:
        fsGroup: 1000
      initContainers:
        - name: init-sysctl
          image: busybox
          imagePullPolicy: IfNotPresent
          securityContext:
            privileged: true
          command: ["sysctl", "-w", "vm.max_map_count=262144"]
      containers:
        - name: elasticsearch
          resources:
            requests:
              memory: 1Gi
          securityContext:
            privileged: true
            runAsUser: 1000
            capabilities:
              add:
                - IPC_LOCK
                - SYS_RESOURCE
          image: docker.elastic.co/elasticsearch/elasticsearch:7.3.1
          env:
            - name: discovery.seed_hosts
              value: "es-node.${namespace}.svc.cluster.local"
            - name: cluster.initial_master_nodes
              value: "es-node-0,es-node-1"
            - name: ES_JAVA_OPTS
              value: -Xms1g -Xmx1g
            - name: cluster.name
              value: bc-es-cluster
            - name: bootstrap.memory_lock
              value: "false"
            - name: xpack.security.enabled
              value: "false"
            - name: xpack.monitoring.enabled
              value: "false"
            - name: network.host
              value: "0.0.0.0"
            - name: node.name
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
          readinessProbe:
            httpGet:
              scheme: HTTP
              path: /_cluster/health?local=true
              port: 9200
            initialDelaySeconds: 5
          ports:
            - containerPort: 9200
              name: es-http
            - containerPort: 9300
              name: es-transport
          volumeMounts:
            - name: es-data
              mountPath: /usr/share/elasticsearch/data
  volumeClaimTemplates:
    - metadata:
        name: es-data
      spec:
        accessModes: [ "ReadWriteOnce" ]
        resources:
          requests:
            storage: 1Gi
---
apiVersion: v1
kind: Service
metadata:
  name: es-cluster-http
  labels:
    app: es-node
spec:
  ports:
    - port: 9200
      protocol: TCP
      name: es-http
  selector:
    app: es-node
---
apiVersion: v1
kind: Service
metadata:
  name: es-cluster-tcp
  labels:
    app: es-node
spec:
  clusterIP: None
  selector:
    app: es-node
  ports:
    - port: 9300
      protocol: TCP
      name: es-tcp