Интеграционные тесты в Java: ускоряем Testcontainers через tmpfs и прединициализацию
Testcontainers - Java-библиотека, которая управляет Docker-контейнерами прямо из тестового кода. Во время выполнения тестов она запускает нужный конте…
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Building and Deploying Spring Petclinic Microservices on AWS: My Experience as Co-Project Lead and App & Docker Lead
Introduction As part of the DMI (DevOps Micro Internship) Cohort 2, our team successfully deployed the Spring Petclinic Microservices application on A…
Stop Leaving Containers Exposed: Practical AppArmor Profiles for Podman and Docker on Linux
Containers give us isolation, but by default they still share the host's attack surface more than many realize. AppArmor (and its cousin SELinux) lets…
Your AI Agent Can Delete Every Container on Your Machine
Your AI coding assistant just wiped your local Docker environment. You asked it to "clean up that test container," and it decided to be thorough — rem…
Забыл продлить VPS? Сделал open‑source панель с напоминаниями и sync API хостеров
В какой‑то момент у меня накопилось несколько VPS у разных провайдеров. Не десятки, но уже достаточно, чтобы каждый месяц лов…
Introducing Security Profiles for Container Permission Management
Introduction In this article, I want to introduce Security Profiles , a feature I added to Raind , a container runtime I have been developing. In a pr…
Deploying Spring Petclinic Microservices with Docker Compose: A Complete DevOps Walkthrough
Introduction As part of my DevOps learning journey in DMI Cohort 2, I deployed the Spring Petclinic Microservices application locally using Docker Com…
From Variant CSV to Review-Ready Report: A Python Workflow With Docker and GitHub Actions
Variant prioritisation often starts with a table. But a table alone does not answer the most important question: Which variants deserve closer review,…
Docker Security Best Practices for Beginners
Docker is a game-changer for developers—making it easier to package, ship, and run applications. But with great power comes great responsibility. Whet…
A Docker Build Failure That Had Nothing to Do With Docker
A local Docker build suddenly started failing with a MODULE_NOT_FOUND error, while the exact same build continued to pass in CI/CD. Here’s…
Cloudflare Tunnel Is the Home Lab Setup You Didn't Know You Needed (Until Your ISP Blocked You)
3 AM. Your error rate just jumped 12%. You've spent the last three weeks debugging intermittent failures on your home lab setup, and the coffee's cold…
Run Real Docker on Android — No Root, No Tricks, Just QEMU
Run Real Docker on Android — No Root, No Tricks, Just QEMU You have an old Android phone in a drawer. It has 8 cores, 8–12 GB of RAM, and a fast SSD. …
I Built a Private AI Brain on My Laptop for $0
Last week I couldn't shake an idea: what if I had an AI that knew everything I know ? Not ChatGPT — something on my hardware, holding my knowledge, an…
Building a Universal Container System (So I Never Have to Write Another Dockerfile)
TL;DR: Built a modular Dockerfile system that lets you compose dev/prod containers using build arguments instead of writing custom Dockerfiles. Includ…
Django Debug Toolbar + Docker: The Missing INTERNAL_IPS Problem
Django Debug Toolbar Didn't Appear When Running Django in Docker I'm currently working on an online accessories shop as a personal project. I usually …
What is Docker? Containerization Made Simple
By Sailee Shingare | M.S. in Computer Science, Northern Illinois University (NIU) In the last post, we learned what containers are — lightweight, port…
DynamoDB and SQS containers with Docker Compose
Docker Compose facilitates spinning up local AWS-compatible services without an AWS account. This post covers DynamoDB Local for key-value storage and…
You Might Not Need Docker: The Case for Lightweight, Headless VMs
Lately, whenever I need to run a quick experiment or spin up a localized environment with multiple moving pieces, I've completely stopped using Docker…
Testing Neovim in a Container with Finch (like Docker)
So developers like CI... for everything! We do this because we like things to be automated. Building software is tedious and risky. If we can push a c…
I got tired of SSH and Loki for four containers, so I built DockLog
If you run a few containers on one VPS or homelab box, you've probably lived this loop: SSH in docker logs -f something Realize someone else on your t…
How I Completed My Home Server Hardware Selection and Migration in One Day Using Claude
Introduction Until recently, my home server was running on AMD BC-250 + Bazzite . The BC-250 is a former mining board sold on AliExpress. I chose it s…
My complete self-hosting stack: Docker Compose + hardening scripts I use on Hetzner (sharing everything)
Originally written for r/selfhosted on Reddit — sharing here for the dev.to community. After running my self-hosted setup for 2+ years on a single Het…
FastAPI и S3 — строим сервис безопасной генерации временных ссылок
В современных веб-приложениях хранение файлов часто отдают специализированным объектным хранилищам, таким как S3 . Это удобно, масштабируемо и надежно…
Делаем автоматизацию для Spotify, которая создаёт плейлисты из избранного
Когда-то музыку слушали на пластинках, затем на кассетах, CD-дисках, потом пришёл Winamp и mp3-плееры. Теперь же у нас есть м…
Deploying Vector High-Performance Observability Data Pipeline on Ubuntu 24.04
Vector is a high-performance observability data pipeline from Datadog that collects, transforms, and routes logs, metrics, and traces across heterogen…
Deploying Dokku Lightweight Open-Source PaaS on Ubuntu 24.04
Dokku is an open-source, Heroku-like Platform-as-a-Service that lets you git push apps and have them built and deployed automatically. This guide depl…
Installing WGDashboard, an Open-Source Web UI for WireGuard VPN, on Ubuntu 24.04
WGDashboard is an open-source web UI for managing WireGuard VPN configurations, peers, and traffic statistics. This guide installs WGDashboard using D…
Deploying Pi-hole DNS Sinkhole Service on Ubuntu 24.04
Pi-hole is a network-level ad and tracker blocking application that acts as a DNS sinkhole, returning a null address for known ad and tracking domains…
Deploying AdGuard Home Network Traffic Filtering on Ubuntu 24.04
AdGuard Home is an open-source, network-wide ad and tracker blocking DNS server with a web dashboard, parental controls, and DNS-over-HTTPS/TLS suppor…
Deploying Ant Media Server Live Video Streaming on Ubuntu 24.04
Ant Media Server is an open-source live video streaming engine that handles WebRTC, RTMP, HLS, and DASH for ultra-low-latency broadcasts. This guide d…