25_deployment_elasticsearch.yml

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: elasticsearch
  namespace: zeebe
  labels:
    app: elasticsearch
spec:
  replicas: 1
  selector:
    matchLabels:
      app: elasticsearch
  template:
    metadata:
      labels:
        app: elasticsearch
    spec:
      terminationGracePeriodSeconds: 300
      initContainers:
      - 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
      - name: fix-permissions
        image: busybox
        command:
        - sh
        - -c
        - chown -R 1000:1000 /usr/share/elasticsearch/data
        securityContext:
          privileged: true
        volumeMounts:
        - name: data
          mountPath: /usr/share/elasticsearch/data
      containers:
      - name: elasticsearch
        image: docker.elastic.co/elasticsearch/elasticsearch-oss:6.7.0
        env:
        - name: discovery.type
          value: single-node
        - name: cluster.name
          value: elasticsearch-cluster
        - name: node.name
          value: elasticsearch
        - name: ES_JAVA_OPTS
          value: "-Xms512m -Xmx512m"
        resources:
          requests:
            cpu: 500m
            memory: 512Mi
          limits:
            cpu: 1000m
            memory: 1Gi
        securityContext:
          privileged: true
          runAsUser: 1000
          capabilities:
            add:
            - IPC_LOCK
            - SYS_RESOURCE
        ports:
        - containerPort: 9200
          name: http
        - containerPort: 9300
          name: transport
        livenessProbe:
          tcpSocket:
            port: transport
          initialDelaySeconds: 30
          periodSeconds: 10
        readinessProbe:
          httpGet:
            path: /_cluster/health
            port: http
          initialDelaySeconds: 30
          timeoutSeconds: 5
        volumeMounts:
        - name: data
          mountPath: /usr/share/elasticsearch/data
      volumes:
        - name: data
          persistentVolumeClaim:
            claimName: data-elasticsearch