elasticsearch.yaml

apiVersion: v1 
kind: Service
metadata:
  name: elasticsearch
  namespace: elk-stack
spec:
  ports:
    - name: http-rest
      protocol: TCP
      port: 9200
      targetPort: 9200
    - name: tcp
      protocol: TCP
      port: 9300
      targetPort: 9300
  selector:
    app: elasticsearch
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: elasticsearch
  namespace: elk-stack
spec:
  replicas: 1
  selector:
    matchLabels:
      app: elasticsearch
  template:
    metadata:
      labels:
        app: elasticsearch
    spec:
      containers:
        - name: elasticsearch
          image: 'docker.elastic.co/elasticsearch/elasticsearch:7.15.2'
          imagePullPolicy: IfNotPresent
          resources:
            limits:
              cpu: "1"
              memory: 8Gi
            requests:
              cpu: 500m
              memory: 4Gi          
          env:
            - name: ES_JAVA_OPTS
              value: '-Xmx2g -Xms2g'
            - name: discovery.type
              value: single-node
          ports: 
            - name: http-rest
              containerPort: 9200
              protocol: TCP
            - name: tcp
              containerPort: 9300
              protocol: TCP
          volumeMounts:
            - name: elasticsearch-data-volume
              mountPath: /usr/share/elasticsearch/data
      restartPolicy: Always
  volumeClaimTemplates:
    - kind: PersistentVolumeClaim
      apiVersion: v1
      metadata:
        name: elasticsearch-data-volume
      spec:
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 10Gi
        storageClassName: ssd-ceph-fs
        volumeMode: Filesystem