apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: temporal-elasticsearch-pvc
  namespace: temporal
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 20Gi

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: temporal-elasticsearch
  namespace: temporal
  labels:
    app: temporal-elasticsearch
spec:
  serviceName: temporal-elasticsearch
  replicas: 1
  selector:
    matchLabels:
      app: temporal-elasticsearch
  template:
    metadata:
      labels:
        app: temporal-elasticsearch
    spec:
      containers:
      - name: elasticsearch
        image: docker.elastic.co/elasticsearch/elasticsearch:7.10.0
        ports:
        - name: http
          containerPort: 9200
          protocol: TCP
        - name: transport
          containerPort: 9300
          protocol: TCP
        env:
        - name: discovery.type
          value: single-node
        - name: ES_JAVA_OPTS
          value: "-Xms512m -Xmx512m"
        - name: xpack.security.enabled
          value: "false"
        volumeMounts:
        - name: elasticsearch-storage
          mountPath: /usr/share/elasticsearch/data
        resources:
          requests:
            cpu: 250m
            memory: 512Mi
          limits:
            cpu: 500m
            memory: 1Gi
        livenessProbe:
          httpGet:
            path: /_cluster/health
            port: 9200
          initialDelaySeconds: 60
          periodSeconds: 10
        readinessProbe:
          httpGet:
            path: /_cluster/health
            port: 9200
          initialDelaySeconds: 30
          periodSeconds: 5
  volumeClaimTemplates:
  - metadata:
      name: elasticsearch-storage
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 20Gi

---
apiVersion: v1
kind: Service
metadata:
  name: temporal-elasticsearch
  namespace: temporal
  labels:
    app: temporal-elasticsearch
spec:
  type: ClusterIP
  clusterIP: None  # Headless service for StatefulSet
  ports:
  - port: 9200
    targetPort: 9200
    protocol: TCP
    name: http
  - port: 9300
    targetPort: 9300
    protocol: TCP
    name: transport
  selector:
    app: temporal-elasticsearch