1、安装 curator

elasticsearch 与 curator 版本适配表：https://www.elastic.co/guide/en/elasticsearch/client/curator/5.8/version-compatibility.html#version-compatibility

下载方式有很多，比如：

  • rpm 包安装
  • pip 安装
  • 二进制安装

这里我是下载的二进制包，地址：https://github.com/elastic/curator/archive/v5.8.4.tar.gz

将 tar.gz 包解压，执行：python setup.py install

2、config.yml 文件（编辑与es的连接）

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---
# Remember,leave a key empty if there is no value.  None will be a string,
# not a Python "NoneType"
client:
  hosts:
    - 192.168.66.65
    - 192.168.66.52
    - 192.168.66.53
  port: 9200
  url_prefix:
  use_ssl: False
  certificate:
  client_cert:
  client_key:
  ssl_no_validate: False
  http_auth:
  timeout: 30
  master_only: False

logging:
  loglevel: INFO
  logfile: /opt/curaor-5.8.4/log/curator.log
  logformat: default
  blacklist: ['elasticsearch', 'urllib3']

注：上面配置的日志目录及文件需要自己预先创建好，否则报错。

3、action.yml 文件（编辑策略）

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---
# Remember, leave a key empty if there is no value.  None will be a string,
# not a Python "NoneType"
#
# Also remember that all examples have 'disable_action' set to True.  If you
# want to use this action as a template, be sure to set this to False after
# copying it.
actions:
  1:
    action: delete_indices
    description: >-
      delete index holli-msa-nacos-logfile-*
    options:
      ignore_empty_list: True
    filters:
    - filtertype: pattern
      kind: regex
      value: '^(holli-msa-nacos-logfile-).*$'
    - filtertype: space
      disk_space: 0.5

上面的过滤原则是：先用正则匹配索引列表，然后当哪个索引容量超过 0.5G，就删除哪个索引。

还有很多过滤场景，可以参考官方：https://www.elastic.co/guide/en/elasticsearch/client/curator/current/filter_elements.html

4、执行看效果

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curator --config my-config.yml my-action.yml --dry-run
  • –dry-run 表示预执行，不更改任何东西

5、设置定时任务

crontab -e，进入文件编辑：

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#定时清理es索引
0 * * * * cd /opt/curaor-5.8.4 && curator --config my-config.yml my-action.yml

crontab -l，查看定时任务列表。