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Curator简介和容器化参考

[TOC]

1. Curator简介

Elasticsearch Curator是一个帮助管理Elasticsearch的索引和快照的插件工具

2. Curator安装

Elasticsearch Curator是一款客户端工具,所以只需要在操作机器上安装即可使用。

rpm --import https://packages.elastic.co/GPG-KEY-elasticsearch

cat >/etc/yum.repos.d/es-curator.repo <<-EOF

[curator-5]

name=CentOS/RHEL 7 repository for Elasticsearch Curator 5.x packages

baseurl=https://packages.elastic.co/curator/5/centos/7

gpgcheck=1

gpgkey=https://packages.elastic.co/GPG-KEY-elasticsearch

enabled=1

EOF

yum install elasticsearch-curator -y  

或者通过pip更简单

pip install -U elasticsearch-curator
3. 容器化参考

因为Elasticsearch Curator的主要面对对象是Elasticsearch的索引和快照,且非容器化方案下一般会配合Crontab去实现具体期望,那么在Kubernetes环境下,用CronJob是操作最为合适

git clone https://github.com/KubeLouis/elasticsearch-curator.git

cd elasticsearch-curator

helm install -f values.yaml curator ./

kubectl get cj
# 可以看到预设好了的cronjob

kubectl get cm
# 对应要执行操作的配置文件和具体要操作的动作都可以在configmap里看到

通过编辑elasticsearch-curator/values.yaml中的cronjob和configMaps来具体定义自己的期望

4. values.yaml中常用字段
字段 简介 示例
cronjob.schedule cronjob执行的时间周期 schedule: "0 1 * * *"
image.repository cronjob拉起的镜像仓库 repository: untergeek/curator
image.tag cronjob拉起的镜像tag tag: 5.8.1
configMaps.action_file_yml Curator的Action file,用来具体书写自己操作Curator期望 参考:https://www.elastic.co/guide/en/elasticsearch/client/curator/current/actionfile.html
configMaps.config_yml Curator的Configuration file,用来做一些具体操作Action file之前的基础配置信息 参考:https://www.elastic.co/guide/en/elasticsearch/client/curator/current/configfile.html
5. 参考文档

​ Elastic Curator官方文档:https://www.elastic.co/guide/en/elasticsearch/client/curator/current/index.html

​ Kubernetes Cronjob官方文档:https://kubernetes.io/zh/docs/tasks/job/automated-tasks-with-cron-jobs/

​ Helm Hub:https://hub.helm.sh/charts/stable/elasticsearch-curator

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