1. 资料准备

环境：docker创建的宝塔lnmp

es下载地址https://www.elastic.co/cn/downloads/past-releases#elasticsearch

ik下载地址https://release.infinilabs.com/analysis-ik/stable/

es和ik下载对应的版本，这里我下载的版本都是8.13.4

2. 安装elasticsearch

由于我是宝塔部署的环境，所以直接将es解压到了/www/elasticsearch目录，

解压完成后，在elasticsearch目录创建data文件夹，全部文件如下

[es@b7cad506ef39 elasticsearch]$ ll
total 2248
-rw-r--r--  1 es es    3860 Mar 22 11:34 LICENSE.txt
-rw-r--r--  1 es es 2251484 Mar 22 11:37 NOTICE.txt
-rw-r--r--  1 es es    9070 Mar 22 11:34 README.asciidoc
drwxr-xr-x  2 es es    4096 Mar 22 11:43 bin
drwxr-xr-x  4 es es    4096 Aug 19 18:41 config
drwxr-xr-x  5 es es    4096 Aug 20 09:26 data
drwxr-xr-x  8 es es    4096 Mar 22 11:43 jdk
drwxr-xr-x  5 es es    4096 Mar 22 11:43 lib
drwxr-xr-x  2 es es    4096 Aug 20 09:11 logs
drwxr-xr-x 81 es es    4096 Mar 22 11:43 modules
drwxr-xr-x  3 es es    4096 Aug 19 18:38 plugins

3. 配置elasticsearch

然后修改elasticsearch配置信息/www/elasticsearch/config/elasticsearch.yml

# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: /www/elasticsearch/data
#
# Path to log files:
#
path.logs: /www/elasticsearch/logs

es升级到v8.x版本之后，自带有安全配置，把安全配置全部改为false，使用http才能访问成功

xpack.security.enabled: false

xpack.security.enrollment.enabled: false

# Enable encryption for HTTP API client connections, such as Kibana, Logstash, and Agents
xpack.security.http.ssl:
  enabled: false
  keystore.path: certs/http.p12

# Enable encryption and mutual authentication between cluster nodes
xpack.security.transport.ssl:
  enabled: false
  verification_mode: certificate
  keystore.path: certs/transport.p12
  truststore.path: certs/transport.p12
# Create a new cluster with the current node only
# Additional nodes can still join the cluster later

由于是虚拟环境，需要配置一下占用内存大小限制，修改/www/elasticsearch/config/jvm.options文件，将其改为512m

# Xms represents the initial size of total heap space
# Xmx represents the maximum size of total heap space

-Xms512m
-Xmx512m

4. 创建操作用户

es不允许root账号启动，创建其他用户密码。

[root@b7cad506ef39 elasticsearch]# adduser es
[root@b7cad506ef39 elasticsearch]# passwd es
Changing password for user es.
New password: 
BAD PASSWORD: The password is shorter than 8 characters
Retype new password: 
passwd: all authentication tokens updated successfully.

授权es用户文件夹操作权限

[root@b7cad506ef39 elasticsearch]# chown es /www/elasticsearch -R
[root@b7cad506ef39 elasticsearch]# chown -R es:es /www/elasticsearch

5. 安装分词器ik

在elasticsearch安装目录plugins里，新建ik文件夹，将ik文件解压到ik文件夹里面，解压后文件如下

[es@b7cad506ef39 ik]$ ll
total 1548
-rw-r--r-- 1 es es 335042 Mar 29 11:52 commons-codec-1.11.jar
-rw-r--r-- 1 es es  61829 Mar 29 11:52 commons-logging-1.2.jar
drwxr-xr-x 2 es es   4096 Mar 12 15:12 config
-rw-r--r-- 1 es es   8172 Mar 29 11:53 elasticsearch-analysis-ik-8.13.0.jar
-rw-r--r-- 1 es es 780321 Mar 29 11:52 httpclient-4.5.13.jar
-rw-r--r-- 1 es es 328593 Mar 29 11:52 httpcore-4.4.13.jar
-rw-r--r-- 1 es es  47931 Mar 29 11:53 ik-core-1.0.jar
-rw-r--r-- 1 es es   1802 Mar 29 11:51 plugin-descriptor.properties
-rw-r--r-- 1 es es    125 Mar 29 11:51 plugin-security.policy

6.启动es

切换es用户，启动elasticsearch

[root@b7cad506ef39 elasticsearch]# su es
[es@b7cad506ef39 elasticsearch]$ ./bin/elasticsearch -d

启动成功后，使用apipost测试，显示如下信息表示访问成功