docker 安装 elasticsearch

1. 拉取镜像：

sudo docker pull elasticsearch:7.12.0

2. 创建docker容器挂载目录：

sudo mkdir -pv /opt/elasticsearch/config
sudo mkdir -pv /opt/elasticsearch/data
sudo mkdir -pv /opt/elasticsearch/plugins

mkdir 参数说明：

• -p, --parents 如果存在，则没有错误，根据需要创建父目录
• -v, --verbose 为每个创建的目录打印一条消息

3. 配置文件（elasticsearch.yml）：

echo "http.host: 0.0.0.0" > /opt/elasticsearch/config/elasticsearch.yml
chmod -R 777 /opt/elasticsearch/

参数说明：

• ">" 如果文件存在，清空文件内容并写入。

  ​ 如果文件不存在，创建新文件并写入。

• -R, --recursive 递归地更改文件和目录

• 777 可读、可写、可执行权限

4. 创建容器：

sudo docker run --name elasticsearch -p 9200:9200  -p 9300:9300 \
 -e "discovery.type=single-node" \
 -e ES_JAVA_OPTS="-Xms84m -Xmx512m" \
 -v /opt/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
 -v /opt/elasticsearch/data:/usr/share/elasticsearch/data \
 -v /opt/elasticsearch/plugins:/usr/share/elasticsearch/plugins \
 -d elasticsearch:7.12.0

docker run参数说明:

• --name string 为容器分配一个名称
• -p, --publish list 向主机发布容器的端口
• -P, --publish-all 将所有公开的端口发布到随机端口
• -e discovery.type=single-node 单点模式启动
• -e ES_JAVA_OPTS="-Xms84m -Xmx512m"：设置启动占用的内存范围
• -v, --volume list 绑定挂载卷
• -d, --detach 在后台运行容器并打印容器ID

5. 查看启动详情：

docker ps  查看是否启动
docker logs elasticsearch  启动日志查询
docker restart elasticsearch   重启
docker exec -it elasticsearch bash 进入

6. 操作明细

[root@localhost ~]# docker pull elasticsearch:7.12.0
7.12.0: Pulling from library/elasticsearch
7a0437f04f83: Pull complete 
2b674c951ca3: Pull complete 
06baeb69f25f: Pull complete 
eeff01d19ce5: Pull complete 
a994306398ca: Pull complete 
2c002d76c1f6: Pull complete 
6286f2196f9b: Pull complete 
Digest: sha256:383e9fb572f3ca2fdef5ba2edb0dae2c467736af96aba2c193722aa0c08ca7ec
Status: Downloaded newer image for elasticsearch:7.12.0
docker.io/library/elasticsearch:7.12.0
[root@localhost ~]# docker images
REPOSITORY      TAG       IMAGE ID       CREATED         SIZE
elasticsearch   7.12.0    9337ed510a0c   18 months ago   830MB
[root@localhost opt]# sudo mkdir -pv /opt/elasticsearch/config
mkdir: 已创建目录 "/opt/elasticsearch"
mkdir: 已创建目录 "/opt/elasticsearch/config"
[root@localhost opt]# sudo mkdir -pv /opt/elasticsearch/data
mkdir: 已创建目录 "/opt/elasticsearch/data"
[root@localhost opt]# sudo mkdir -pv /opt/elasticsearch/plugins
mkdir: 已创建目录 "/opt/elasticsearch/plugins"
[root@localhost config]# echo "http.host: 0.0.0.0" > /opt/elasticsearch/config/elasticsearch.yml
[root@localhost config]# sudo docker run --name elasticsearch -p 9200:9200  -p 9300:9300 \
>  -e "discovery.type=single-node" \
>  -e ES_JAVA_OPTS="-Xms84m -Xmx512m" \
>  -v /opt/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
>  -v /opt/elasticsearch/data:/usr/share/elasticsearch/data \
>  -v /opt/elasticsearch/plugins:/usr/share/elasticsearch/plugins \
>  -d elasticsearch:7.12.0
8f1930bde13101b5f0412d2e31c7ebc9114c80d95b36da4ead466262574642af
[root@localhost ~]# docker ps
CONTAINER ID   IMAGE                  COMMAND                  CREATED          STATUS             PORTS                                                                                  NAMES
8f1930bde131   elasticsearch:7.12.0   "/bin/tini -- /usr/l…"   13 minutes ago   Up 5 minutes       0.0.0.0:9200->9200/tcp, :::9200->9200/tcp, 0.0.0.0:9300->9300/tcp, :::9300->9300/tcp   elasticsearch

[root@localhost ~]# curl "http://127.0.0.1:9200"
{
  "name" : "8f1930bde131",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "XjL5BIXbRrOY0VR4HfloEQ",
  "version" : {
    "number" : "7.12.0",
    "build_flavor" : "default",
    "build_type" : "docker",
    "build_hash" : "78722783c38caa25a70982b5b042074cde5d3b3a",
    "build_date" : "2021-03-18T06:17:15.410153305Z",
    "build_snapshot" : false,
    "lucene_version" : "8.8.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}