使用DockerCompose搭建部署ElasticSearch集群

机器准备

模拟3台机器：

节点名称	ip:host	说明
elasticsearch1	192.168.200.135:9300	映射9200给kibana访问
elasticsearch2	192.168.200.135:9302
elasticsearch3	192.168.200.135:9303

需要注意的是elasticsearch1映射宿主机9200端口，主要用作给kibana访问。
官方的推荐做法是加一个协调节点，然后kibana通过该协调节点来访问。详情见：https://www.elastic.co/guide/en/kibana/6.8/production.html#load-balancing 。
其实个人觉得这种方案是有问题的，假设该协调节点故障，则会导致kibana无法连接。如果在生产环境，一般通过nginx做反向代理实现高可用，避免该协调节点故障导致kibana无法使用的问题。

docker-compolse.yml如下：

version: '3'
services:
  elasticsearch1:
    image: docker.elastic.co/elasticsearch/elasticsearch:6.8.13
    container_name: elasticsearch1
    environment:
      - node.name=elasticsearch1
      - node.master=true
      - node.data=true
      - http.cors.enabled=true
      - http.cors.allow-origin=*
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
      #- "discovery.zen.ping.unicast.hosts=elasticsearch"
      - discovery.zen.ping.unicast.hosts=192.168.200.135:9300,192.168.200.135:9302,192.168.200.135:9303
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - esdata1:/usr/share/elasticsearch/data
      - /docker/es-cluster/plugins:/usr/share/elasticsearch/plugins
    ports:
      - 9300:9300
      - 9200:9200
    networks:
      - esnet
    privileged: true    #环境变量
  elasticsearch2:
    image: docker.elastic.co/elasticsearch/elasticsearch:6.8.13
    container_name: elasticsearch2
    environment:
      - node.name=elasticsearch2
      - node.master=true
      - node.data=true
      - http.cors.enabled=true
      - http.cors.allow-origin=*
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
      - discovery.zen.ping.unicast.hosts=192.168.200.135:9300,192.168.200.135:9302,192.168.200.135:9303
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - esdata2:/usr/share/elasticsearch/data
      - /docker/es-cluster/plugins:/usr/share/elasticsearch/plugins
    ports:
      - 9301:9300
    networks:
      - esnet
    privileged: true    #环境变量
  elasticsearch3:
    image: docker.elastic.co/elasticsearch/elasticsearch:6.8.13
    container_name: elasticsearch3
    environment:
      - node.name=elasticsearch3
      - node.master=true
      - node.data=true
      - http.cors.enabled=true
      - http.cors.allow-origin=*
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
      - discovery.zen.ping.unicast.hosts=192.168.200.135:9300,192.168.200.135:9302,192.168.200.135:9303
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - esdata3:/usr/share/elasticsearch/data
      - /docker/es-cluster/plugins:/usr/share/elasticsearch/plugins
    ports:
      - 9303:9300
    networks:
      - esnet
    privileged: true    #环境变量
    
  kibana:
    image: kibana:6.8.13
    restart: always
    container_name: kibana
    environment:
      - SERVER_NAME=kibana
      - ELASTICSEARCH_URL=http://192.168.200.135:9200
      - XPACK_MONITORING_ENABLED=true
    #volumes:
      #- /docker/kibana/kibana.yml:/usr/share/kibana/config/kibana.yml
    ports:
      - 5601:5601
    networks:
      - esnet
    depends_on:
      - elasticsearch1
    privileged: true    #环境变量

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

networks:
  esnet:

参考：https://www.jianshu.com/p/dace6c3558a2