ElasticSearch docker cluster

docker-compose.yml

version: '3.5'
services:
  es01:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.12.0
    container_name: elasticsearch
    environment:
      - node.name=es01
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - discovery.seed_hosts=es02,es03
      - cluster.initial_master_nodes=es01,es02,es03
      - http.cors.enabled=true
      - http.cors.allow-origin=*
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - esdata1:/usr/share/elasticsearch/data
    ports:
      - 9200:9200
    networks:
      - esnet
  
  es02:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.12.0
    container_name: elasticsearch2
    environment:
      - node.name=es02
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - discovery.seed_hosts=es01,es03
      - cluster.initial_master_nodes=es01,es02,es03
      - http.cors.enabled=true
      - http.cors.allow-origin=*
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - esdata2:/usr/share/elasticsearch/data
    networks:
      - esnet
  
  es03:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.12.0
    container_name: elasticsearch3
    environment:
      - node.name=es03
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - discovery.seed_hosts=es01,es02
      - cluster.initial_master_nodes=es01,es02,es03
      - http.cors.enabled=true
      - http.cors.allow-origin=*
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - esdata3:/usr/share/elasticsearch/data
    networks:
      - esnet

  kibana:
    image: 'docker.elastic.co/kibana/kibana:7.12.0'
    container_name: kibana
    environment:
      SERVER_NAME: kibana.local
      ELASTICSEARCH_URL: http://es01:9200
    ports:
      - '5601:5601'
    networks:
      - esnet

  headPlugin:
    image: 'mobz/elasticsearch-head:5'
    container_name: head
    ports:
      - '9100:9100'
    networks:
      - esnet

volumes:
  esdata1:
    driver: local
  esdata2:
    driver: local
  esdata3:
    driver: local

networks:
  esnet: