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

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SPACE

SPACE (Sandboxed Platform for Agentic Code Execution) is a sandbox platform for running code in isolated Firecracker microVMs. Applications use its HTTP API to create Linux environments, execute commands, collect output, and manage sandbox lifecycles.

Use SPACE when your application needs a separate execution environment for an agent, a user workspace, or a code-running job. Your application decides what to run and what results to keep; SPACE manages the sandbox, its processes, and the connection carrying command output.


https://github.com/perplexityai/SPACE
Go CPU and Memory Requests and Limits in Kubernetes

A small Go heap does not always mean low container memory usage. The heap shares the container's memory limit with goroutine stacks, runtime metadata, cgo allocations, and memory mapped directly from the operating system. Linux can kill a Go process even when its heap looks healthy.


https://learnkube.com/go-kubernetes-requests-limits
What gcloud start-iap-tunnel is doing while your SSH session hangs

A Wi-Fi toggle took an IAP tunnel almost three minutes to recover. Why the relay reconnect stalls, and what close codes 4033, 4003 and 4047 mean.


https://medium.com/google-cloud/what-gcloud-start-iap-tunnel-is-doing-while-your-ssh-session-hangs-138a52cd6df8
RDP to a Windows VM over IAP: serial port 4, NLA and a certificate nobody checks

Google says to verify the RDP thumbprint from serial port 1. On a real VM it was gone. How the password reaches you, what CredSSP protects, and the errors in between.


https://medium.com/google-cloud/rdp-to-a-windows-vm-over-iap-serial-port-4-nla-and-a-certificate-you-cant-check-90ec745f2df3
18 ноября пройдёт Positive AppSec Conf — первая конференция Positive Technologies по безопасной разработке.
Формат гибридный: офлайн в Кибердоме и онлайн-трансляция.

Практики AppSec и DevSecOps обсудят реальные кейсы и инциденты.

В программе:

🤖 ИИ пишет код быстрее, чем вы находите в нём дыры: как ускорить разработку и не нагенерировать уязвимость в прод
🔍 SAST/DAST/IaC-сканеры в пайплайне: где реально спасают, а где только шумят и создают иллюзию безопасности
⛓️ Атаки через цепочку поставок: почему одна уязвимость в open-source-библиотеке бьёт по сотням компаний сразу
🐛 Метрики AppSec: почему «сколько нашли уязвимостей» — плохой показатель и что считать вместо него
💸 Бюджет на безопасность: как обосновать его перед бизнесом, когда уязвимостей больше, а денег столько же

Конференция будет полезна DevOps- и DevSecOps-инженерам, AppSec-специалистам, архитекторам ИБ и CISO.

🗓 18 ноября, Кибердом (м. Улица 1905 года) + онлайн

Участие бесплатное, но регистрация проходит через подтверждение — подавайте заявку заранее.
codeg

Collaborative multi-agent AI coding workspace: aggregate sessions from Claude Code, Codex, OpenCode, Pi, Grok Build, etc. Desktop app, self-hosted server, or Docker.


https://github.com/spacering-net/codeg
difit

difit is a CLI tool that lets you view and review local git diffs with a GitHub-style viewer. In addition to clean visuals, comments can be copied as prompts for AI. The local code review tool for the AI era!


https://github.com/yoshiko-pg/difit
PaperPilot

PaperPilot is a PDF and document toolkit written in Rust.


https://github.com/KrushnaVardhanReddy/PaperPilot
Building Modelplane on Crossplane

The project is called Modelplane. It lets a platform team turn a pile of accelerators (across clouds, neoclouds, and on-premise) into one fleet. It also lets the ML teams they support deploy a model and get a stable, OpenAI-compatible endpoint without thinking about where it runs.


https://blog.crossplane.io/building-modelplane
Scaling Kubernetes Deployments to multiple Regions: A GitOps Reference Architecture

This article is the architecture I'd build to get from 2 to 25 regions without that fear: a GitOps-first model where each region is an independent, self-healing control loop, deployments are declarative commits, and rollback is a git revert scoped to exactly one region — fully isolated from every other.


https://medium.com/@vtulasinadh/scaling-kubernetes-deployments-to-multiple-regions-a-gitops-reference-architecture-ad18a55bdaac
How I Built a Kubernetes Rightsizer in 4 Days During Easter Vacation — and Cut k8s Costs by 36%

It became crystal clear that the only way to get real savings was to resize everything, all at once, cluster by cluster, automatically.


https://medium.com/@mcpunzo/how-i-built-a-kubernetes-rightsizer-in-4-days-during-easter-vacation-and-cut-k8s-costs-by-36-2c98c99b1956
How We Built Our Deployment Pipeline: GitOps, ArgoCD, and Kubernetes at Dodo Payments

We're Dodo Payments, a payment and billing infrastructure company. We process real money for businesses across multiple countries. That means PCI DSS compliance isn't optional - it's existential. And PCI requires something we didn't have: a complete, auditable trail of every change to our production environment.


https://dodopayments.com/engineering/deployment-pipeline-gitops-argocd-kubernetes
We Proved Multi-Cluster Kafka Works on Kubernetes… Here's Everything we Learned

We built a working prototype of Apache Kafka distributed across three independent Kubernetes clusters using Strimzi, Submariner, and Cilium, achieving zero-downtime failover when an entire cluster goes down.


https://aswin6303.medium.com/we-proved-multi-cluster-kafka-works-on-kubernetes-heres-everything-we-learned-853dd5f1c03c
Your Kubernetes Backup Restored Successfully. So Why Is the App Broken?

I spent a while building a backup-and-restore test environment with Velero, running MariaDB, PostgreSQL, and MongoDB under load, and learned that backing up databases on Kubernetes has two hard problems, not one. The first is getting a backup that isn't subtly corrupt. The second is getting that backup to restore somewhere else and actually run.


https://medium.com/@ishay7/your-kubernetes-backup-restored-successfully-so-why-is-the-app-broken-0685d0a43814
Deep Dive into Kubernetes Secrets Store CSI Driver

Following the Journey of a Secret from an External Secret Store to Your Pod.


https://medium.com/@agarwalaviral065/deep-dive-into-kubernetes-secrets-store-csi-driver-cf7f5e4e94c4
Zero Log Loss in Kubernetes: Why I Replaced a Single Fluentd DaemonSet with a Two-Layer Architecture

How separating log collection from log aggregation eliminated data loss during crashes, rolling updates, and infrastructure failures.


https://medium.com/@alexandreloureno_46066/your-kubernetes-cluster-is-probably-dropping-logs-mine-was-77966aced83b
Scale Kubernetes deployments to zero using KEDA

If you have a multi-cluster EKS deployment for your development, QA and staging environments, those generally don't need to run at 3AM. No one is using any of that, except for maybe a few cronjobs to refresh data. Everything else is wasted idle compute.


https://mijndertstuij.nl/posts/scale-to-zero-keda-cron-scaler
Your Docker Secrets Are Not Gone — They're Just Hidden

A developer writes a Dockerfile, adds a secret to set something up, then deletes the file a few lines later and pushes the image. From the container's perspective, the file is gone. But the secret is still in the image — permanently — and anyone with access to the image can pull it out with nothing more than tar and a few shell commands.


https://medium.com/@luka.klaric.1988/your-docker-secrets-are-not-gone-theyre-just-hidden-3bcc69fcf35a
Your Kubernetes Cluster Already Has a Certificate Authority — Use It for Everything

Here's the thing: cert-manager can issue that cert too. It can issue certs for anything you own a DNS name for, whether it runs in Kubernetes or not. Most teams don't know this.


https://medium.com/@michaelpechner/your-kubernetes-cluster-already-has-a-certificate-authority-use-it-for-everything-f6fbe3f20ada
⚡ Онлайн-митап IT_ONE: Между кодом и продом
 

Три прикладных доклада для тех, кто отвечает за стабильность инфраструктуры. Обсудим на встрече защиту Helm-чартов
от некорректных данных, научим писать надежные проверки
на helm-unittest и разберем развертывание собственной LLM-модели для всей команды.

Приглашаем разработчиков, DevOps-, QA- и SRE-инженеров, тимлидов и архитекторов.

12 ноября
18:00 (мск), онлайн
Регистрация:
по ссылке
 
В программе митапа — три выступления:
1⃣ Персональный ИИ своими руками.
Руслан Кашафутдинов расскажет, как развернуть свою ИИ-модель и работать без квот облачных сервисов.
2⃣ Helm-чарты: когда они действительно нужны.
Виталий Перваков разберет защиту от некорректных данных и сравнит инструменты проверки конфигураций.
3⃣ Стабильные unit-тесты для Helm-чартов.
Андрей Слатимов покажет, как с помощью helm-unittest находить ошибки шаблонизации и проверять обратную совместимость.

 
Приходи со своими рабочими вопросами — можно будет обсудить их с экспертами. Авторы лучших вопросов получат мерч IT_ONE: футболку, стикеры и плед.

📎 Всем зарегистрированным участникам после митапа отправим презентации спикеров и другие полезные материалы.

Регистрируйся до 11 ноября, 23:59 (мск)
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sholdee/crd-schema-publisher: CRD Docs and IDE Validation

Extracts CRD schemas from Kubernetes or YAML, converts Kubernetes built-in resource schemas from /openapi/v2, and publishes a searchable documentation site with interactive schema pages.


https://github.com/sholdee/crd-schema-publisher