docker-compose.cluster.yml

services:
  es1:
    image: docker.elastic.co/elasticsearch/elasticsearch:${VERSION:-7.14.0}
    hostname: es1
    environment:
      - bootstrap.memory_lock=true
      - cluster.name=elasticsearch
      - cluster.initial_master_nodes=es1
      - discovery.seed_hosts=es1
      - cluster.routing.allocation.disk.threshold_enabled=false
      - node.name=es1
      - logger.org.elasticsearch=warn
      - xpack.security.enabled=false
      - "ES_JAVA_OPTS=-Xms1g -Xmx1g"
    ulimits:
      nproc: 65536
      nofile:
        soft: 65536
        hard: 65536
      memlock:
        soft: -1
        hard: -1
    # volumes:
    #   - ./data/elasticsearch:/usr/share/elasticsearch/data
    ports:
      - 9200:9200

  es2:
    image: docker.elastic.co/elasticsearch/elasticsearch:${VERSION:-7.14.0}
    hostname: es2
    environment:
      - bootstrap.memory_lock=true
      - cluster.name=elasticsearch
      - cluster.initial_master_nodes=es1
      - discovery.seed_hosts=es1
      - cluster.routing.allocation.disk.threshold_enabled=false
      - node.name=es2
      - logger.org.elasticsearch=warn
      - xpack.security.enabled=false
      - "ES_JAVA_OPTS=-Xms1g -Xmx1g"
    ulimits:
      nproc: 65536
      nofile:
        soft: 65536
        hard: 65536
      memlock:
        soft: -1
        hard: -1
    # volumes:
    #   - ./data/elasticsearch:/usr/share/elasticsearch/data
    ports:
      - 9201:9200

  es3:
    image: docker.elastic.co/elasticsearch/elasticsearch:${VERSION:-7.14.0}
    hostname: es3
    environment:
      - bootstrap.memory_lock=true
      - cluster.name=elasticsearch
      - cluster.initial_master_nodes=es1
      - discovery.seed_hosts=es1
      - cluster.routing.allocation.disk.threshold_enabled=false
      - node.name=es3
      - logger.org.elasticsearch=warn
      - xpack.security.enabled=false
      - "ES_JAVA_OPTS=-Xms1g -Xmx1g"
    ulimits:
      nproc: 65536
      nofile:
        soft: 65536
        hard: 65536
      memlock:
        soft: -1
        hard: -1
    # volumes:
    #   - ./data/elasticsearch:/usr/share/elasticsearch/data
    ports:
      - 9202:9200