顶级工具 | Popeye帮你发现k8s集群潜在问题
Popeye 是一种实用程序,可扫描实时 Kubernetes 集群并报告已部署资源和配置的潜在问题。它根据部署的内容为您的集群消毒。通过扫描您的集群,它可以检测错误配置并帮助您确保最佳实践到位,从而防止未来出现问题。它旨在减少在运行 Kubernetes 集群时面临的认知过载。此外,如果您的集群使用metric-server,它会报告潜在的资源分配过多/不足,并在您的集群容量不足时尝试警告您。
Popeye 是一个只读工具,它不会以任何方式改变您的任何 Kubernetes 资源!Popeye 会扫描您的集群以寻找最佳实践和潜在问题。目前,Popeye 只查看节点、命名空间、pod 和服务。消毒器的目的是发现错误配置,即端口不匹配、无效或未使用的资源、指标利用率、探针、容器映像、RBAC 规则、裸露资源等。
安装
Popeye 适合 Kubernetes 1.13+,您可以将 Popeye 容器化并作为一次性或 CronJob 直接在您的 Kubernetes 集群中运行。它可在 Linux、MacOS 和 Windows 平台上使用。
下面在linux演示Popeye的使用:
wget https://github.com/derailed/popeye/releases/download/v0.9.8/popeye_Linux_x86_64.tar.gztar -zxf popeye_Linux_x86_64.tar.gz
tar -zxf popeye_Linux_x86_64.tar.gz
检查版本:
# ./popeye version
___ ___ _____ _____ K .-'-.
| _ \___| _ \ __\ \ / / __| 8 __| `\
| _/ _ \ _/ _| \ V /| _| s `-,-`--._ `\
|_| \___/_| |___| |_| |___| [] .->' a `|-'
Biffs`em and Buffs`em! `=/ (__/_ /
\_, ` _)
`----; |
Version: 0.9.8
Commit: 6db27f04407b337f6743faf4f382a61991aa5f31
Date: 2021-11-02T21:26:28Z
Logs:
执行扫描,默认扫描所有namespace:
# ./popeye
# ....
STATEFULSETS (5 SCANNED) 💥 2 😱 3 🔊 0 ✅ 0 0٪
┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅
· default/dubbo-monitor..........................................................................💥
😱 [POP-500] Zero scale detected.
🐳 dubbo-monitor
💥 [POP-100] Untagged docker image in use.
😱 [POP-106] No resources requests/limits defined.
· default/mongodb................................................................................😱
🐳 mongodb
😱 [POP-106] No resources requests/limits defined.
· default/redis..................................................................................💥
🐳 init-redis
💥 [POP-100] Untagged docker image in use.
😱 [POP-106] No resources requests/limits defined.
🐳 redis
😱 [POP-106] No resources requests/limits defined.
· default/redis-test.............................................................................😱
😱 [POP-500] Zero scale detected.
🐳 redis
😱 [POP-106] No resources requests/limits defined.
· default/zookeeper-one..........................................................................😱
🐳 zookeeper-one
😱 [POP-106] No resources requests/limits defined.
SUMMARY
┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅
Your cluster score: 74 -- C
可以看到当前集群评分为74:C
图示:
可以用-n参数指定namespace。
输出格式默认输出到控制台,也可以输出json、html、yaml等格式,可以将输出内容push到第三方服务,S3桶。
输出html格式到文件:
./popeye --out html --save --output-file log.html
/tmp/popeye/log.html
在浏览器中打开:
了解Popeye更多信息,请移步:
https://github.com/derailed/popeye
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