基于docker构建es集群

首先,假定有三台机器，分别是elasticsearch_node1,elasticsearch_node2,elasticsearch_node3，将他们ip和域名写入/etc/hosts.

然后基于docker.1ms.run/elasticsearch:7.17.18镜像进行操作

一、先将ip和域名写入/etc/hosts

elasticsearch_node1, 192.168.1.1
elasticsearch_node2, 192.168.1.2
elasticsearch_node3， 192.168.1.3

二、先构建证书和三个节点的证书

#1-先构建公共证书
docker run --rm -it \
  -v /srv/share/elasticsearch/certs:/certs \
  docker.1ms.run/elasticsearch:7.17.18 \
  bin/elasticsearch-certutil ca \
  -s \
  -E xpack.security.http.ssl.enabled=false \
  --ip 127.0.0.1 \
  --pem \
  -out /certs/certs.zip


#将上面的压缩包解压，会有ca.crt  ca.key两个文件，下面要用
#2构建每个节点的证书
docker run --rm -it \
  -v /srv/share/elasticsearch/certs:/certs \
  docker.1ms.run/elasticsearch:7.17.18 \
  bin/elasticsearch-certutil cert \
  --ca-cert /certs/ca/ca/ca.crt \
  --ca-key /certs/ca/ca/ca.key \
  -name elasticsearch_node1 \
  --ip 192.168.1.1 \
  --dns elasticsearch_node1,localhost \
  --pem \
  -out /certs/node1.zip

docker run --rm -it \
  -v /srv/share/elasticsearch/certs:/certs \
  docker.1ms.run/elasticsearch:7.17.18 \
  bin/elasticsearch-certutil cert \
  --ca-cert /certs/ca/ca/ca.crt \
  --ca-key /certs/ca/ca/ca.key \
  -name elasticsearch_node2 \
  --ip 192.168.1.2 \
  --dns elasticsearch_node2,localhost \
  --pem \
  -out /certs/node2.zip

docker run --rm -it \
  -v /srv/share/elasticsearch/certs:/certs \
  docker.1ms.run/elasticsearch:7.17.18 \
  bin/elasticsearch-certutil cert \
  --ca-cert /certs/ca/ca/ca.crt \
  --ca-key /certs/ca/ca/ca.key \
  -name elasticsearch_node3 \
  --ip 192.168.1.3 \
  --dns elasticsearch_node3,localhost \
  --pem \
  -out /certs/node3.zip

上述会获得3个节点压缩包，解压后，
将/srv/share/elasticsearch/certs/ca/ca/ca.crt 复制到这3个节点文件夹中

三、分别在三台机器上启动

下面是节点1的docker-compose.yaml，其他2个节点改下对应的node

version: '3'
services:
  elasticsearch:
    image: docker.1ms.run/elasticsearch:7.17.18
    container_name: elasticsearch
    user: root
    restart: always
    environment:
      - node.name=elasticsearch_node1
      - cluster.name=elasticsearch_cluster
      - discovery.seed_hosts=elasticsearch_node2:9300,elasticsearch_node3:9300
      - cluster.initial_master_nodes=elasticsearch_node1,elasticsearch_node2,elasticsearch_node3
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms16g -Xmx16g"
      - ELASTIC_PASSWORD=password
      - network.host=0.0.0.0
      - xpack.security.transport.ssl.verification_mode=certificate
      - xpack.security.transport.ssl.key=/usr/share/elasticsearch/config/certs/elasticsearch_node1.key
      - xpack.security.transport.ssl.certificate=/usr/share/elasticsearch/config/certs/elasticsearch_node1.crt
      - xpack.security.transport.ssl.certificate_authorities=/usr/share/elasticsearch/config/certs/ca.crt
      - xpack.security.enabled=true
      - xpack.security.transport.ssl.enabled=true
      - xpack.security.http.ssl.enabled=false
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - /srv/share/elasticsearch/data:/usr/share/elasticsearch/data
      - /srv/share/elasticsearch/plugins:/usr/share/elasticsearch/plugins
      - /srv/share/elasticsearch/certs/elasticsearch_node1:/usr/share/elasticsearch/config/certs:ro
      - /etc/hosts:/etc/hosts:ro
      - /dev/random:/dev/random:ro
      - /dev/urandom:/dev/urandom:ro
    network_mode: host

四、构建kibana

version: '3'

services:
  kibana:
    image: docker.1ms.run/kibana:7.17.18
    container_name: kibana
    restart: always
    ports:
      - "32602:5601"
    environment:
      - SERVERNAME=kibana.example.com
      - ELASTICSEARCH_HOSTS=["http://192.168.1.1:9200"]  # 修改为你的任意一个 ES 节点 IP:9200
      - ELASTICSEARCH_USERNAME=elastic
      - ELASTICSEARCH_PASSWORD=password
      - SERVER_SSL_ENABLED=false
      - XPACK_SECURITY_ENABLED=true
      - XPACK_ENCRYPTEDSAVEDOBJECTS_ENCRYPTIONKEY=k3F8mPq9nR2sT7vX5wZ1aB6cD4eH8gJ2
      - XPACK_SECURITY_ENCRYPTIONKEY=s2K9nR3tT6vX8wZ4aB7cD5eH9gJ3kL5m
      - XPACK_REPORTING_ENCRYPTIONKEY=r5M8nS4uV7xY2bA6dE8fH1jK4nM7pQ9r
    volumes:
      # 如果你启用了 Elasticsearch HTTPS（HTTP SSL），需要挂载 CA 证书
       - /srv/share/elasticsearch/certs/ca/ca/ca.crt:/usr/share/kibana/config/certs/ca.crt:ro

networks:
  host-network:
    driver: host

五、安装ik分词器

分别进三台机器

docker exec -ti elasticsearch bash

#进去后执行
bin/elasticsearch-plugin install https://get.infini.cloud/elasticsearch/analysis-ik/7.17.18

大功告成