Remote node

Elastic Stack Elasticsearch
2

OK.
For those who don't know so much like me :slight_smile:
in Host-1 which is your master node host, You should up a cluster with just one master node and if you want use kibana.
and on the other Hosts You should setup a single node cluster and change seed_host and initial_master_node to your master node host.
then if everything ok you can see the joining message in master node logs and data node logs.

for eg.:

master node:

version: "2.2"

services:
  es01:
    image: docker.elastic.co/elasticsearch/elasticsearch:${STACK_VERSION}
    volumes:
      - certs:/usr/share/elasticsearch/config/certs
      - esdata01:/usr/share/elasticsearch/data
    ports:
      - ${ES_PORT}:9200
      - 9300:9300
    environment:
      - network.publish_host="172.16.3.8"
      - xpack.security.enabled=false
      - node.name=es01
      - network.host=0.0.0.0
      - cluster.name=${CLUSTER_NAME}
      - cluster.initial_master_nodes=172.16.3.8
      - discovery.seed_hosts=172.16.3.8:9300
      - node.roles=[master, remote_cluster_client]
      - ELASTIC_PASSWORD=${ELASTIC_PASSWORD}
      - bootstrap.memory_lock=true
      - reindex.remote.whitelist=172.12.30.10:9280
      - xpack.license.self_generated.type=${LICENSE}
      - ES_JAVA_OPTS=-Xms4g -Xmx4g
      - reindex.ssl.verification_mode=none
    mem_limit: ${MEM_LIMIT_NODE}
    ulimits:
      memlock:
        soft: -1
        hard: -1
    healthcheck:
      test:
        [
          "CMD-SHELL",
          "curl localhost:9200/_cat/health",
        ]
      interval: 10s
      timeout: 10s
      retries: 120

  kibana:
    depends_on:
      es01:
        condition: service_healthy
    image: docker.elastic.co/kibana/kibana:${STACK_VERSION}
    volumes:
      - certs:/usr/share/kibana/config/certs
      - kibanadata:/usr/share/kibana/data

    ports:
      - 5601:5601
    environment:
      - SERVERNAME=kibana
      - ELASTICSEARCH_HOSTS=http://es01:9200
      - ELASTICSEARCH_USERNAME=kibana_system
      - ELASTICSEARCH_PASSWORD=${KIBANA_PASSWORD}
      - SERVER_HOST=0.0.0.0
    mem_limit: ${KIB_MEM_LIMIT}

    healthcheck:
      test:
        [
          "CMD-SHELL",
          "curl -s -I http://localhost:5601 | grep -q 'HTTP/1.1 302 Found'",
        ]
      interval: 10s
      timeout: 10s
      retries: 120

volumes:
  certs:
    driver: local
  esdata01:
    driver: local
  esdata02:
    driver: local
  kibanadata:
      driver: local

data node:

version: '3.8'
services:
  es03:
    image: docker.elastic.co/elasticsearch/elasticsearch:8.15.3
    container_name: es03
    ports:
      - 9200:9200
      - 9300:9300
    environment:
      - xpack.security.enabled=false
      - network.publish_host="172.16.3.10"
      - node.name=es03
      - cluster.initial_master_nodes=172.16.3.8:9300
      - cluster.name=docker-cluster
      - node.roles=[data, remote_cluster_client]
      - node.roles=data
      - network.host=0.0.0.0
      - discovery.seed_hosts=172.16.3.8:9300
      - bootstrap.memory_lock=true
      - ES_JAVA_OPTS=-Xms5g -Xmx5g
      - reindex.ssl.verification_mode=none
    mem_limit: ${MEM_LIMIT_NODE}
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - esdata03:/usr/share/elasticsearch/data
    networks:
      - es-net

volumes:
  esdata03:
    driver: local

networks:
  es-net:
    driver: bridge
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