DevOps&SRE Library
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Библиотека статей по теме DevOps и SRE.

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How we cut Kubernetes costs by ~60% for Feature Environments with KEDA and Prometheus

https://pierreraffa.medium.com/reducing-feature-environment-costs-with-keda-and-prometheus-in-kubernetes-307d0dcc3264
Build Your Own Kubernetes based SaaS Cloud Platform with Kamaji and GitOps

Think building a SaaS platform is out of reach? With Kamaji, GitOps, and Kubernetes, it’s simpler — and more powerful — than it seems.


https://itnext.io/build-your-own-saas-cloud-platform-with-kamaji-and-gitops-aeec1b5f17fd
gateway-api-bench

This repo aims to provide a comprehensive test suite that goes far beyond the conformance tests, to help users better understand the real-world behavior of implementations.


https://github.com/howardjohn/gateway-api-bench
helm-unittest

Unit test for helm chart in YAML to keep your chart consistent and robust!


https://github.com/helm-unittest/helm-unittest
k8skonf

Write Kubernetes manifests in TypeScript.


https://github.com/konfjs/k8skonf
keel

Kubernetes Operator to automate Helm, DaemonSet, StatefulSet & Deployment updates


https://github.com/keel-hq/keel
kaniko

kaniko is a tool to build container images from a Dockerfile, inside a container or Kubernetes cluster.

This is a supported replacement of the original GoogleContainerTools/kaniko repository, which was archived in June of 2025.


https://github.com/chainguard-forks/kaniko
You probably don't need Oh My Zsh

Oh My Zsh is still getting recommended a lot. The main problem with Oh My Zsh is that it adds a lot of unnecessary bloat that affects shell startup time.

Since OMZ is written in shell scripts, every time you open a new terminal tab, it has to interpret all those scripts. Most likely, you don't need OMZ at all.


https://rushter.com/blog/zsh-shell
I Cannot SSH Into My Server Anymore (And That’s Fine)

https://soap.coffee/~lthms/posts/i-cannot-ssh-into-my-server-anymore.html
terraform-mcp-server

The Terraform MCP Server is a Model Context Protocol (MCP) server that provides seamless integration with Terraform Registry APIs, enabling advanced automation and interaction capabilities for Infrastructure as Code (IaC) development.


https://github.com/hashicorp/terraform-mcp-server
What came first: the CNAME or the A record?

On January 8, 2026, a routine update to 1.1.1.1 aimed at reducing memory usage accidentally triggered a wave of DNS resolution failures for users across the Internet. The root cause wasn't an attack or an outage, but a subtle shift in the order of records within our DNS responses.


https://blog.cloudflare.com/cname-a-record-order-dns-standards
The Biggest Time Sinks During Outages

https://uptimelabs.io/articles/time-outages
qmd

An on-device search engine for everything you need to remember. Index your markdown notes, meeting transcripts, documentation, and knowledge bases. Search with keywords or natural language. Ideal for your agentic flows.


https://github.com/tobi/qmd
zedis

Zedis is a next-generation Redis GUI client designed for developers who demand speed.

Unlike Electron-based clients that can feel sluggish with large datasets, Zedis is built on GPUI (the same rendering engine powering the Zed Editor). This ensures a native, 60 FPS experience with minimal memory footprint, even when browsing millions of keys.


https://github.com/vicanso/zedis
ansible-collection-hardening

This Ansible collection provides battle tested hardening for Linux, SSH, nginx, MySQL


https://github.com/dev-sec/ansible-collection-hardening
Introduction to PostgreSQL Indexes

This text is for developers that have an intuitive knowledge of what database indexes are, but don’t necessarily know how they work internaly, what are the tradeoffs associated with indexes, what are the types of indexes provided by postgres and how you can use some of its more advanced options to make them more optimized for your use case.


https://dlt.github.io/blog/posts/introduction-to-postgresql-indexes
Quiet Influence: A Guide to Nemawashi in Engineering

Being an excellent engineer helps you advance through the ranks to become a Staff Engineer; “quiet influence” keeps you there.

I’ve learned the hard way that my architectural proposals didn’t fail on technical merits (mostly 😅); they failed because of the social strategy (or lack thereof) I had employed behind them. I’d have a vision on how things were going to be improved, but struggled to recruit others to get behind the idea.

After a few painful misses, I started building a toolkit of approaches that actually get big changes through. In this post, I’ll share a technique I use: Nemawashi.


https://hodgkins.io/blog/quiet-influence-a-guide-to-nemawashi-in-engineering
The Art of Command Line

Master the command line, in one page


https://github.com/jlevy/the-art-of-command-line
The only Terraform pipeline you will ever need: GitHub Actions for Multi-Environment Deployments

https://medium.com/zencore/the-only-terraform-pipeline-you-will-ever-need-github-actions-for-multi-environment-deployments-a2cb25d72473
Managing Terraform at Scale: A Deep Dive into Terragrunt Configuration Hierarchy

How I manage 100+ infrastructure components across multiple products, environments, and regions without configuration duplication


https://devineer.medium.com/managing-terraform-at-scale-a-deep-dive-into-terragrunt-configuration-hierarchy-54f1f16e7c1f