[root@hadoop-keda /]# docker pull elasticsearch:7.4.2
7.4.2: Pulling from library/elasticsearch
2、先配置宿主機的 參數，否則無法啟動，會報錯：
max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[root@study-01 ~]# vim /etc/sysctl.conf
vm.max_map_count=655360
[root@study-01 ~]# sysctl -p
3、先啟動簡潔版的容器
sudo docker run -id \
--net docker-hadoop-net \
--ip 172.170.0.15 \
--restart=always \
--hostname=hadoop_elasticsearch \
--name=hadoop-elasticsearch \
-p 19200:9200 \
-p 19300:9300 \
-v /etc/localtime:/etc/localtime \
-e ES_JAVA_OPTS="-Xms2g -Xmx2g" \
-e "discovery.type=single-node" \
-e TZ='Asia/Shanghai' \
-e LANG="en_US.UTF-8" \
elasticsearch:7.4.2
4、copy容器中的文件，到宿主機上
[root@hadoop-keda software]# docker cp 97d21381af5a4e49e:/usr/share/elasticsearch/config/ /usr/docker/software/elasticsearch/
[root@hadoop-keda software]# docker cp 97d21381af5a4e49e:/usr/share/elasticsearch/data/ /usr/docker/software/elasticsearch/
[root@hadoop-keda software]# docker cp 97d21381af5a4e49e:/usr/share/elasticsearch/logs/ /usr/docker/software/elasticsearch/
[root@hadoop-keda software]# docker cp 97d21381af5a4e49e:/usr/share/elasticsearch/plugins/ /usr/docker/software/elasticsearch/
5、啟動 elasticsearch 容器
sudo docker run -tid \
--net docker-hadoop-net \
--ip 172.170.0.15 \
--restart=always \
--hostname=hadoop_elasticsearch \
--name=hadoop-elasticsearch \
-p 19200:9200 \
-p 19300:9300 \
-v /usr/docker/software/elasticsearch/config/:/usr/share/elasticsearch/config/ \
-v /usr/docker/software/elasticsearch/data/:/usr/share/elasticsearch/data/ \
-v /usr/docker/software/elasticsearch/logs/:/usr/share/elasticsearch/logs/ \
-v /usr/docker/software/elasticsearch/plugins/:/usr/share/elasticsearch/plugins/ \
-v /etc/localtime:/etc/localtime \
-e ES_JAVA_OPTS="-Xms2g -Xmx2g" \
-e "discovery.type=single-node" \
-e TZ='Asia/Shanghai' \
-e LANG="en_US.UTF-8" \
elasticsearch:7.4.2
註：
-e "discovery.type=single-node" 表示 單節點啟動。
如果yml文件中，配置是集群環境，需要把這個去掉
6、開放宿主機的端口，（阿裏雲服務器，需要通過控制臺來開啟19200端口）
7、訪問測試
8、安裝 IK 分詞器（進入docker容器安裝插件）
[root@hadoop-keda config]# docker exec -it 9e4e12672334 bash
[root@hadoop_elasticsearch elasticsearch]# ls
bin config data jdk lib LICENSE.txt logs modules NOTICE.txt plugins README.textile
[root@hadoop_elasticsearch elasticsearch]# cd bin/
[root@hadoop_elasticsearch bin]# ls
elasticsearch elasticsearch-cli elasticsearch-enve elasticsearch-node elasticsearch-setup-passwords elasticsearch-sql-cli-7.4.2.jar x-pack-env
elasticsearch-certgen elasticsearch-croneval elasticsearch-keystore elasticsearch-plugin elasticsearch-shard elasticsearch-syskeygen x-pack-security-env
elasticsearch-certutil elasticsearch-env elasticsearch-migrate elasticsearch-saml-metadata elasticsearch-sql-cli elasticsearch-users x-pack-watcher-env
[root@hadoop_elasticsearch bin]# elasticsearch-plugin install /medcl/elasticsearch-analysis-ik/releases/download/v7.4.2/elasticsearch-analysis-ik-7.4.2.zip
-> Downloading /medcl/elasticsearch-analysis-ik/releases/download/v7.4.2/elasticsearch-analysis-ik-7.4.2.zip
[=================================================] 100%
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: plugin requires additional permissions @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
* java.net.SocketPermission * connect,resolve
See /javase/8/docs/technotes/guides/security/permissions.html
for descriptions of what these permissions allow and the associated risks.
Continue with installation? [y/N]y
-> Installed analysis-ik
9、安裝mobz/elasticsearch-head 容器並連接到 elasticsearch
[root@hadoop-keda ~]# sudo docker run -dit \
> --net docker-hadoop-net \
> --ip 172.170.0.18 \
> --restart=always \
> --hostname=hadoop_elasticsearch_head \
> --name=hadoop-elasticsearch-head \
> -p 19100:9100 \
> -v /etc/localtime:/etc/localtime \
> -e TZ='Asia/Shanghai' \
> -e LANG="en_US.UTF-8" \
> mobz/elasticsearch-head:5
10、開放宿主機的端口，（阿裏雲服務器，需要通過控制臺來開啟19100端口）