Docker安裝ElasticSearch詳細教程

安裝要求：

1. docker已安裝並配置阿里等鏡像加速

2. 采用docker-compose部署時，需安裝docker-compose

3. CentOS基本操作指令

4. docker基本操作指令

一、拉取ElasticSearch鏡像

1、鏡像倉庫

https://hub.docker.com/

2、下拉鏡像

#拉取鏡像文件
docker pull elasticsearch
#說明：此處也可在Tags中選擇指定版本的elasticsearch

3、查看鏡像

docker images

二、創建Elasticsearch容器

1、創建所需文件夾

#1、創建Elasticsearch配置文件夾
mkdir -p /usr/local/data-docker/elasticsearch/config
​
#2、創建Elasticsearch數據文件夾
mkdir -p /usr/local/data-docker/elasticsearch/data
​
#3、創建Elasticsearch插件文件夾（如：ik）
mkdir -p /usr/local/data-docker/elasticsearch/plugins
​
#說明：目的將CentOS本地的文件夾映射到Elasticsearch容器，以實現容器數據的持久化到CentOS本地，以及通過CentOS本地文件夾內容的修改同步到容器

 

echo "http.host: 0.0.0.0">>/usr/local/data-docker/elasticsearch/config/elasticsearch.yml

#創建並寫入elasticsearch.yml配置，注意：http.host: 0.0.0.0 冒號后有一空格

2、文件夾賦權

chmod -R 777 elasticsearch/

3、命令啟動

docker run --name elasticsearch -p 9200:9200 \
 -p 9300:9300 \
 -e "discovery.type=single-node" \
 -e ES_JAVA_OPTS="-Xms64m -Xmx128m" \
 -v /usr/local/data-docker/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
 -v /usr/local/data-docker/elasticsearch/data:/usr/share/elasticsearch/data \
 -v /usr/local/data-docker/elasticsearch/plugins:/usr/share/elasticsearch/plugins \
 -d elasticsearch

參數說明

--name elasticsearch：將Elasticsearch容器命名為 elasticsearch

-p 9200:9200：將容器的9200端口映射到宿主機9200端口

-p 9300:9300：將容器的9300端口映射到宿主機9300端口，目的是集群互相通信

-e "discovery.type=single-node"：單例模式

-e ES_JAVA_OPTS="-Xms64m -Xmx128m"：配置內存大小

-v /usr/local/data-docker/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml：將配置文件掛載到宿主機

-v /usr/local/data-docker/elasticsearch/data:/usr/share/elasticsearch/data：將數據文件夾掛載到宿主機

-v /usr/local/data-docker/elasticsearch/plugins:/usr/share/elasticsearch/plugins：將插件目錄掛載到宿主機(需重啟)

-d elasticsearch：后台運行容器，並返回容器ID

三、docker-compose啟動

version: '2'
services:
 elasticsearch:
   container_name: elasticsearch
   image: elasticsearch
   ports:
     - "9200:9200"
   volumes:
     - /usr/local/data-docker/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml
     - /usr/local/data-docker/elasticsearch/data:/usr/share/elasticsearch/data
     - /usr/local/data-docker/elasticsearch/plugins:/usr/share/elasticsearch/plugins
   environment:
     - "ES_JAVA_OPTS=-Xms64m -Xmx128m"
     - "discovery.type=single-node"
     - "COMPOSE_PROJECT_NAME=elasticsearch-server"
   restart: always

四、查看容器

docker ps -a

五、驗證是否成功

#說明：安裝完后，通過如下指令查看elasticsearch是否安裝成功
curl http://localhost:9200

展示結果如下：

{
 "name" : "550eca5cf3b2",
 "cluster_name" : "elasticsearch",
 "cluster_uuid" : "1mP9IJU3TUy_C2DZMfKGBg",
 "version" : {
   "number" : "7.7.0",
   "build_flavor" : "default",
   "build_type" : "docker",
   "build_hash" : "81a1e9eda8e6183f5237786246f6dced26a10eaf",
   "build_date" : "2020-05-12T02:01:37.602180Z",
   "build_snapshot" : false,
   "lucene_version" : "8.5.1",
   "minimum_wire_compatibility_version" : "6.8.0",
   "minimum_index_compatibility_version" : "6.0.0-beta1"
 },
 "tagline" : "You Know, for Search"
}

注意：如展示上邊內容，說明docker安裝elasticsearch成功，如遠程訪問無法展示上述內容，請關防火牆或防火牆開放9200、9300端口

六、Docker啟動容器自啟

docker update elasticsearch --restart=always