Docker下安装 Elasticsearch5.x与相关插件（head、ik分词器）

• 拉取Elasticsearch镜像。https://hub.docker.com/_/elasticsearch/

$ docker pull elasticsearch:5.6

• 运行es容器，建立集群 。

$ docker run -p 9200:9200 -p 9300:9300 -d --name elas elasticsearch:5.6 -Etransport.host=0.0.0.0 -Ediscovery.zen.minimum_master_nodes=1

注意：

1. 系统参数 vm.max_map_count 须要调整， 不然容器可能运行失败。
2. 可以使用此命令临时调整 sysctl -w vm.max_map_count=262144。
3. 永久调整 修改配置文件/etc/sysctl.conf。
4. 最后记得配置跨域，重启 ES ，访问 http://localhost:9100/

   $ sed -i '$a http.cors.enabled: true' elasticsearch.yml
   $ sed -i '$a http.cors.allow-origin: "*"' elasticsearch.yml
   $ cat elasticsearch.yml 
   http.host: 0.0.0.0
   # Uncomment the following lines for a production cluster deployment
   #transport.host: 0.0.0.0
   #discovery.zen.minimum_master_nodes: 1
   http.cors.enabled: true
   http.cors.allow-origin: "*"

    

• 拉取head插件镜像，并运行。https://github.com/mobz/elasticsearch-head#running-with-built-in-server

$ docker pull mobz/elasticsearch-head:5
$ docker run -p 9100:9100 mobz/elasticsearch-head:5

•     ik分词器插件安装。https://github.com/medcl/elasticsearch-analysis-ik

$ docker exec -it elas
root@017ac94a0576:/usr/share/elasticsearch# ./bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v5.6.4/elasticsearch-analysis-ik-5.6.4.zip
-> Downloading https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v5.6.4/elasticsearch-analysis-ik-5.6.4.zip
[=================================================] 100%   
-> Installed analysis-ik
root@017ac94a0576:/usr/share/elasticsearch# ls plugins/
analysis-ik