apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: elasticsearch
  namespace: elk
spec:
  serviceName: elasticsearch
  replicas: 1
  selector:
    matchLabels:
      app: elasticsearch
  template:
    metadata:
      labels:
        app: elasticsearch
    spec:
      containers:
        - name: elasticsearch
          image: docker.elastic.co/elasticsearch/elasticsearch:8.15.0
          env:
            - name: discovery.type
              value: single-node
            - name: ES_JAVA_OPTS
              value: "-Xms1g -Xmx1g"
          ports:
            - containerPort: 9200
            - containerPort: 9300
          volumeMounts:
            - name: elasticsearch-data
              mountPath: /usr/share/elasticsearch/data
  volumeClaimTemplates:
    - metadata:
        name: elasticsearch-data
      spec:
        accessModes: ["ReadWriteOnce"]
        storageClassName: longhorn
        resources:
          requests:
            storage: 30Gi