对于理解，排查，解决系统性能问题有非常大的助益, 这本书简直就是 oncall saver, 我对这方面非常感兴趣，很幸运目前能遇到它而不是在几年之后。 此外我还有一篇博客总结了一下系统性能调优: <<Linux Performance Tunin ...
Yum Package Version Lock
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yum versionlock, to restrict a package to a fixed version against yum update/upgrade. The plugin stores a package list in /etc/yum ...
Ansible Quick Test
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Ansible
When I was working at IBM, I applied a dedicated cluster for Ansible learning. After I left, I decide to use Vagrant to create loc ...
Rebinding Release PV with PVC
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Reference Reuse existing Persistent Volume Background Prod env upgrade failed, rolled back leads to historical monitoring data los ...
Linux Performance Tuning
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最近一周在on-call，这里整理一下Linkedin Learn: Linux performance的内容. 这里主要关注4个方面: CPU, Memory, Disk and FileSystem IO, Network. 其实很多时候，alerts o ...
Kind
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Kubernetes
Kind helps you bring up local k8s cluster for testing and POC. Seamlessly working with kubectl and others: such as prometheus, ope ...
Terraform Deep Dive
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Infra
//TODO This is the follow up of <<Terraform Quick Start>>. github repo Working with Existing Resources # Configure an ...
Infrastructure as Code
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Book
刚看完第一版，第二版就出来了, hmmm… -_-||| This book doesn’t offer instructions in using specific scripting languages or tools. There are code e ...
Linux Make Big Files
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Storage
最近在学习Linux storage的过程中，研究了一下几个创建大文件的命令，特别是它们的区别. 可以参考这个提问Quickly create a large file on a Linux system. cd /tmp# slowdd if=/dev/ze ...
Python Linter
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最近项目codebase 迁移到了GoB/Gerrit 的体系中，提交代码后CI 会做code linting 操作并且提示错误信息，最好是在提交前在本地先自检，但目前似乎没有集成本地linting 的功能, 经过观察，可以自己搭建linting 的环境去对任 ...