Docker部署elasticsearch集群
1、集群架构
| IP | hostname | ES节点 | ES镜像 |
|---|---|---|---|
| 10.1.1.19 | es1 | es01 | elasticsearch:7.14.2 |
| 10.1.1.20 | es2 | es02 | elasticsearch:7.14.2 |
| 10.1.1.21 | es3 | es03 | elasticsearch:7.14.2 |
2、安装docker
3、配置环境（三个节点都要做）
（1）创建挂载目录
# 三个目录分别对应配置文件、数据和日志目录
mkdir /elk/{config,data,logs}
（2）修改权限
chown -R 1000:1000 /elk
（3）调高JVM线程数限制数量
在centos窗口中，修改配置sysctl.conf
vim /etc/sysctl.conf
加入如下内容：
vm.max_map_count=262144
启用配置：
sysctl -p
4、创建/elk/config/es.yml配置文件：
es01：
cluster.name: my-elasticsearch node.name: es-node1 network.bind_host: 0.0.0.0 network.publish_host: 10.1.1.19 http.port: 9200 transport.tcp.port: 9300 http.cors.enabled: true http.cors.allow-origin: "*" node.master: true node.data: true cluster.initial_master_nodes: ["es-node1","es-node2","es-node3"] discovery.zen.ping.unicast.hosts: ["10.1.1.19:9300","10.1.1.20:9300","10.1.1.21:9300"] discovery.zen.minimum_master_nodes: 2
es02：
cluster.name: my-elasticsearch node.name: es-node2 network.bind_host: 0.0.0.0 network.publish_host: 10.1.1.20 http.port: 9200 transport.tcp.port: 9300 http.cors.enabled: true http.cors.allow-origin: "*" node.master: true node.data: true cluster.initial_master_nodes: ["es-node1","es-node2","es-node3"] discovery.zen.ping.unicast.hosts: ["10.1.1.19:9300","10.1.1.20:9300","10.1.1.21:9300"] discovery.zen.minimum_master_nodes: 2
es03：
cluster.name: my-elasticsearch node.name: es-node3 network.bind_host: 0.0.0.0 network.publish_host: 10.1.1.21 http.port: 9200 transport.tcp.port: 9300 http.cors.enabled: true http.cors.allow-origin: "*" node.master: true node.data: true cluster.initial_master_nodes: ["es-node1","es-node2","es-node3"] discovery.zen.ping.unicast.hosts: ["10.1.1.19:9300","10.1.1.20:9300","10.1.1.21:9300"] discovery.zen.minimum_master_nodes: 2
5、启动es节点
es01：
docker run -e ES_JAVA_OPTS="-Xms512m -Xmx512m" -d -p 9200:9200 -p 9300:9300 -v /elk/config/es.yml:/usr/share/elasticsearch/config/elasticsearch.yml -v /elk/data/:/usr/share/elasticsearch/data -v /elk/logs/:/usr/share/elasticsearch/logs --name es01 elasticsearch:7.14.2
es02：
docker run -e ES_JAVA_OPTS="-Xms512m -Xmx512m" -d -p 9200:9200 -p 9300:9300 -v /elk/config/es.yml:/usr/share/elasticsearch/config/elasticsearch.yml -v /elk/data/:/usr/share/elasticsearch/data -v /elk/logs/:/usr/share/elasticsearch/logs --name es02 elasticsearch:7.14.2
es03：
docker run -e ES_JAVA_OPTS="-Xms512m -Xmx512m" -d -p 9200:9200 -p 9300:9300 -v /elk/config/es.yml:/usr/share/elasticsearch/config/elasticsearch.yml -v /elk/data/:/usr/share/elasticsearch/data -v /elk/logs/:/usr/share/elasticsearch/logs --name es03 elasticsearch:7.14.2
