nyxd now builds images, is rootless, runs on macOS & Windows
Back in May, Mohamed wrote about getting fed up with the container stack using more RAM than the workloads on his Raspberry Pis, and building nyxd t…
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Our autoscaler stopped scaling the day we added a sidecar without a CPU request
On the first Monday of January, when our trade customers restock after the holidays, the catalogue API slowed to four seconds a page by half past ei…
Day 62: Secrets and Tags
Day 62 of DevOps, Day 12 of Azure. Both tasks today turned on a name I did not choose. Kubernetes named the file inside my Secret after the file on…
From Docker to Kubernetes: When Docker Stops Being Enough
You learned how to build an image. You can start a container: docker run myapp You can inspect it, read its logs, attach volumes, configure networks…
Build Your Own Kubernetes: A Small Orchestrator That Teaches the Real System
A container can be started with one command. Keeping the right number of containers running after machines fail, requests race, and processes restar…
Dockerizing a Node App & Shipping It to Azure: Build, Break, Fix & Ship (3 Errors, Zero Regrets) 🐳
I wanted a hands-on project to actually cement what I'd been learning in Docker and Azure, build something small, break it, fix it, and ship it for…
Kubernetes Series - Part 2: Container vs Pod vs Deployment Explained
Kubernetes Series - Part 2: Container vs Pod vs Deployment Explained In the previous article, we explored Kubernetes Architecture and how different…
Docker vs Podman in 2026: The Benchmarks Contradict Each Other. Here Is How to Decide.
You are setting up a new Linux server in 2026 and you have to pick a container engine. You search for benchmarks. One writeup says Podman starts con…
Kubernetes Isn't a Container Manager, It's a Reconciliation System
Subtitle A first-principles mental model for understanding Kubernetes controllers, desired state, actual state, and why this changes the way you deb…
Kubernetes Architecture
🚀 Kubernetes Architecture Explained Before diving into Kubernetes architecture, let's first understand why Kubernetes is preferred for running conta…
The Linux process that even SIGKILL can't kill
URL: https://www.youtube.com/watch?v=TLaLW84egMk The short version, for anyone who'd rather read it: When a process exits, the kernel frees basicall…
Day 47: Copy Requirements Before the Code, and SQS Has No Priority Feature
Neither of today's tasks has a setting for the thing it delivers. Docker has no switch that makes rebuilds fast, and SQS has no switch that makes a…
The configuration we changed in June arrived one pod at a time in August
A support ticket said our dispatch emails were going out twice. Not always, not to any customer we could pick out, and never while we watched. Twent…
Docker
Docker Desktop 1.Open terminal 2.Run docker pull nginx docker pull httpd docker pull docker/getting-started in docker hub terminal to pull docker im…
Stop Guessing Your Node Groups: A Deep Dive Into Karpenter on EKS
If you have run a production EKS cluster for more than a few months, you already know the ritual. You size your node groups based on a rough estimat…
Docker Images vs Containers, Explained
If you are new to Docker, this is probably the first thing that trips you up: people say "image" and "container" like they mean the same thing, and…
🚀 Kubernetes: From YAML to Running Pods
Kubernetes may look complicated at first, but the basic process becomes much easier to understand when we break it into five stages: 1️⃣ Define the…
Docker vs. Kubernetes: Which Should You Learn First?
Docker vs. Kubernetes: Which Should You Learn First? This question comes up constantly, and the honest answer is that it's not really a choice betwe…
`gh attestation verify` said yes to an image we never released
The four questions, and the one nobody asks Pulling a container image somebody else built asks four separate questions. Most people answer three of…
Docker Engine 29's default image store lets --storage-opt size fail silently
Docker Engine 29 switches new installs from the classic overlay2 graphdriver to the containerd snapshotter as the default image store. I wanted to k…
K8s: Node Maintenance & Eviction
If you read my previous posts on topology spread and the affinity club , we mostly talked about Pod placement: which nodes can accept a new Pod, and…
I Threw the Box Away. The Damage Was Already Done.
ShrekOS field notes · August 2026 I have no idea what I'm f*cking doing. Something I learned today: Throwing away a disposable sandbox is a cleanup…
Installing Longhorn on Kubernetes
Longhorn is an open-source, lightweight distributed block storage system for Kubernetes that provides persistent, highly available storage for state…
Installing Docker on Ubuntu 24.04
Docker is an open-source containerization platform that automates deploying, scaling, and managing applications in containers — lightweight, portabl…
How to Set Up n8n Locally with Docker Desktop:
This complete beginner's guide walks through every step to prepare your computer, install Docker Desktop, and run n8n locally with persistent storag…
How to quickly deploy a website with Docker
Hey everyone! Do you find it tedious to manually create Docker Compose files whenever you want to spin up multiple web servers? Or are you tired of…
Managing External Secrets in Docker Swarm
I've been working with Docker Swarm secrets and kept running into the same limitation: secrets are immutable. Once a secret is created, you can't up…
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 — oft…
Understanding Kubernetes: A Beginner's Guide to Container Orchestration
If you have already explored Docker , you know how convenient containers are. You package your application, dependencies, and environment into a nea…
Docker Demystified: The Ultimate Guide to Containers and Architecture
If you have ever dealt with the nightmare of "it works on my machine but crashes in production," you have felt the pain that containerization was bu…