Linux Kernel Modules That Explain How Podman Really Works
Hi, readers this time I want to show you how to build and run three Linux kernel modules that illustrate core Operating Systems concepts: kernel debug…
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Docker Volumes vs Bind Mounts: Where Your Data Actually Lives
A container's writable layer feels like a filesystem, and that's exactly the trap. Write a database into it, remove the container, and the data is gon…
Docker for developers
"Works on my machine" is the most expensive sentence in software. Docker exists to kill it. At its core, Docker packages your application together wit…
Go-go Gadget...
Are you looking for vulnerability intel that standard scanners skip? OSV-Scanner is an awesome SCA tool for unearthing vulnerabilities in open-source …
I ran 29 real docker-compose projects on Apple's container runtime. Here's what broke
Docker Desktop keeps a ~7.8 GB Linux VM provisioned the entire time it's running — even when zero containers are up. Apple's new container runtime idl…
Container Security for SREs: The Practical Checklist
Security Is Part of Reliability SREs think about availability, latency, and throughput. But a security breach is just another type of incident — often…
EKS Security Deep Dive: IRSA vs. EKS Pod Identity
Introduction If you're running apps on Amazon EKS, you've faced this challenge: your pods need to talk to AWS services (S3, DynamoDB, SQS), and you mu…
Docker Containerization: Turning 'Works on My Machine' Into a Reproducible Artifact
"Works on my machine" is one of the oldest jokes in software, and it stopped being funny the first time it cost me a weekend. The code was fine. The e…
Docker Containerization Habits That Keep Production Calm
Most of the container incidents I've helped clean up didn't come from anything exotic. They came from small shortcuts that felt reasonable on a Tuesda…
What Is a Docker Image, Really? Layers, Caching, and Size
Most people learn Docker by copying a Dockerfile that works, shipping it, and moving on. That's fine until the day a build that used to take twenty se…
Why Your Docker Images Are Huge (and How I Slim Them Down)
A 1.2 GB image for a service that's a few megabytes of compiled code is one of those things everyone accepts until someone actually looks at it. Slow …
container escape is becoming an agent workload
The scary part of an agent-driven container escape is not the container escape. That sounds wrong, so let me be precise. The primitives in Sysdig's la…
CKA Exam study 2026 Scenario 1 - The etcd Endpoint Trap
The etcd Endpoint Trap A cluster migration just took your whole control plane offline. In the next few minutes you'll find out why, and fix it the way…
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…
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…
Hands-On AWS CI/CD: CodeBuild, CodeDeploy, CodePipeline & Zero-Downtime Blue/Green Releases
Introduction If you've ever wondered how production teams ship code dozens of times a day without breaking things (or how they recover fast when they …
How to upgrade an Enterprise Grade Kubernetes Cluster with Zero Downtime.
Introduction One of the common tasks performed by DevOps Engineers is upgrade of their organization's Kubernetes Cluster at least once every 3 months …
CIFSwitch - CVE-2026-46243
Just released an open-source bash checker for CIFSwitch (CVE-2026-46243) — the 19-year-old Linux kernel LPE disclosed last week that lets any unprivil…
Docker vs Kubernetes: Stop Comparing Them Like They Compete
Every developer hitting their first production deployment runs into this question: Do I need Docker, Kubernetes, or both? It's the wrong framing. They…
What is Kubernetes? The Technology Behind Modern Cloud Applications
Understanding the technology that manages millions of containers every day. Imagine you have built a Docker container for your application. Everything…
How to Run Untrusted AI Agent Code Without Docker
Docker shares the host kernel. That was always the trade. It was fine when a human read the script before it ran. It stopped being fine the second an …
Which Cloud Is Best for Containers & Microservices? Why IBM Cloud Stands Out
If you are building modern, cloud-native applications, you already know that containers and microservices are the gold standard. They give your archit…
Azure Container Apps Express: The Agent-First Platform You've Been Waiting For
I've been running AI workloads on Azure Container Apps for over a year. Every time I spin up a new agent backend, the ritual is the same: create an en…
Containers & Agents with Docker & OpenClaw
You have a fundamental problem in software: your code works on your machine, but breaks on someone else's. Different operating systems. Different vers…
How Logs Travel From Your EKS Pod to Datadog The Hidden Journey Inside / Kubernetes
How Logs Travel From Your EKS Pod to Datadog If you’re running applications on Kubernetes using Amazon EKS and suddenly seeing logs appear in Datadog,…
The Hidden Life of a Container: A Complete Lifecycle
The anatomy of a container tells you what the walls are made of. This article tells you when they go up, what happens inside them, and what the kernel…
DbxSmith: Forge Isolated Dev Environments and Manage Boxes Seamlessly
A pure Bash TUI toolkit for provisioning, isolating, and orchestrating Distrobox/Podman containers — without the overhead. arijit1begins / dbx-smith D…
Migrating Workloads to OpenShift: A Practical Approach
TL;DR This tutorial walks through migrating containerized applications to Red Hat OpenShift on IBM Cloud, covering assessment, containerization refine…
Virtual Machines, Virtual Environments and Containers: Understanding the Differences
INTRODUCTION When working in software development or data engineering, you will often hear terms like virtual machines, virtual environments and conta…
Why We Containerise Everything
On Second Thought — Episode 08 A new service is started. The README is written, then the Dockerfile. Within the hour the team is discussing the regist…