apiVersion: apps/v1
kind: Deployment
metadata:
  name: changelog-server
  labels:
    app: changelog-server
spec:
  selector:
    matchLabels:
      app: changelog-server  
#  strategy:
#    type: RollingUpdate
#    rollingUpdate:
#      maxSurge: 1
#      maxUnavailable: 1
  replicas: 1
  template:
    metadata:
      labels:
        app: changelog-server
    spec:

      initContainers:
      - name: set-vm-sync-limit
        image: busybox
        imagePullPolicy: IfNotPresent
        command: ["sysctl", "-w", "vm.max_map_count=262144"]
        securityContext:
          privileged: true
      volumes:
       - name: changelog-server-esdata
         hostPath:
           # directory location on host
           path: /data
           # this field is optional
           type: Directory          
      containers:
      - name: app
        image: albancrommer/changelog-server:latest
        ports:
        - containerPort: 80
          protocol: TCP
      - name: es
        image: blacktop/elasticsearch:7.7
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9200
          protocol: TCP
        volumeMounts:
#          - name: elastic-config
#            mountPath: /etc/elasticsearch/elasticsearch.yaml
#            subPath: elasticsearch.yaml
          - name : changelog-server-esdata
            mountPath: /usr/share/elasticsearch/data
        env:
            - name: node.name
              value: "es01"
            - name: cluster.name
              value: "es-docker-cluster"
            - name: bootstrap.memory_lock
              value: "true"
            - name: ES_JAVA_OPTS
              value: "-Xms512m -Xmx512m"