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…
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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…
LLM Sandbox: изолированная среда для исполнения кода от LLM [часть 1, теория]
В большинстве бизнес-сценариев LLM перестала быть просто чат-ботом. Современные модели становятся частью агентских систем: у них есть инструменты, дос…
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…
Deploying Seafile Secure File Sync on Ubuntu 24.04
Seafile is an open-source file sync and share platform focused on speed, reliability, and end-to-end encrypted libraries, with desktop and mobile clie…
Deploying a Dockerized Node.js Application on Kubernetes 🚀
After containerizing an application with Docker, the next logical step is deploying it on Kubernetes. Kubernetes helps automate application deployment…
Docker Pass vs Docker Secret: What Is the Difference?
If you have been working with Docker secrets locally, you may have noticed two commands that sound similar but behave very differently: docker pass an…
GPU_WORKLOAD_MISMATCH: A Novel Security Finding Category for AI Container Workloads
Defensive Publication: GPU_WORKLOAD_MISMATCH A Novel Security Finding Category for AI Container Workloads Author: Carnell Smith, Champtron Systems LLC…
ConfigMaps for Environment Variables in a React App: Stop Rebuilding, Start Injecting
TL;DR: Create React App builds bake environment variables at build time. ConfigMaps let you inject runtime configs into your container. Here’s how to …
How to fix ImagePullBackOff error in Kubernetes
Quick Answer (TL;DR) ImagePullBackOff means the kubelet cannot pull your container image and is now backing off before retrying. The fix is almost alw…
Services without Docker-in-Docker: how PikoCI handles test dependencies
If you've ever needed a database for your integration tests in CI, you've probably encountered one of these solutions: Docker-in-Docker. A separate do…
Deploying Hermes WebUI with Docker — The 8 Errors I Hit and How to Fix Them
Deploying Hermes WebUI with Docker — The 8 Errors I Hit and How to Fix Them I needed a web UI for the Hermes Agent. Docker Compose looked simple. Eigh…
Docker Security Dispatch — Issue 2: From JCON to Zurich 🏔️
Welcome to the second issue of Docker Security Dispatch . April was a whirlwind of conferences, articles, and interviews. From the cathedrals of Colog…