3 Node Elasticsearch Cluster for Docker

docker-compose.yml

version: '2'
services:
  es0:
    container_name: es0
    image: docker.elastic.co/elasticsearch/elasticsearch:6.8.6
    container_name: es0
    environment:
      - ES_SKIP_SET_KERNEL_PARAMETERS=true
      - cluster.name=docker-cluster
      - node.name=es0
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms256m -Xmx256m"
      - "discovery.zen.ping.unicast.hosts=es1,es2"
      - "discovery.zen.minimum_master_nodes=2"
      - "xpack.security.enabled=false"
      - "xpack.watcher.enabled=false"
      - "xpack.monitoring.enabled=false"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    mem_limit: 1g
    volumes:
      - esvol0:/usr/share/elasticsearch/data
    ports:
      - 9200:9200
    networks:
      - esnet

  es1:
    container_name: es1
    image: docker.elastic.co/elasticsearch/elasticsearch:6.8.6
    environment:
      - ES_SKIP_SET_KERNEL_PARAMETERS=true
      - cluster.name=docker-cluster
      - node.name=es1
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms256m -Xmx256m"
      - "discovery.zen.ping.unicast.hosts=es0,es2"
      - "discovery.zen.minimum_master_nodes=2"
      - "xpack.security.enabled=false"
      - "xpack.watcher.enabled=false"
      - "xpack.monitoring.enabled=false"
    depends_on:
      - es0
    ulimits:
      memlock:
        soft: -1
        hard: -1
    mem_limit: 1g
    volumes:
      - esvol1:/usr/share/elasticsearch/data
    networks:
      - esnet

  es2:
    container_name: es2
    image: docker.elastic.co/elasticsearch/elasticsearch:6.8.6
    environment:
      - ES_SKIP_SET_KERNEL_PARAMETERS=true
      - cluster.name=docker-cluster
      - node.name=es2
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms256m -Xmx256m"
      - "discovery.zen.ping.unicast.hosts=es0,es1"
      - "discovery.zen.minimum_master_nodes=2"
      - "xpack.security.enabled=false"
      - "xpack.watcher.enabled=false"
      - "xpack.monitoring.enabled=false"
    depends_on:
      - es0
    ulimits:
      memlock:
        soft: -1
        hard: -1
    mem_limit: 1g
    volumes:
      - esvol2:/usr/share/elasticsearch/data
    networks:
      - esnet

  kibana:
    container_name: kibana
    image: docker.elastic.co/kibana/kibana:6.8.6
    ports:
      - 5601:5601
    environment:
      - "ELASTICSEARCH_URL=http://es0:9200"
    ports:
      - 5601:5601
    links:
      - es0
    networks:
      - esnet

networks:
  esnet: {}

volumes:
  esvol0:
    driver: local
  esvol1:
    driver: local
  esvol2:
    driver: local