Dockerfiles: Building and Running a Node.js Application in a Container
Introduction Containers provide a consistent way to package applications together with the dependencies and configuration required to run them. A Do…
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How to move a Python service from a Docker Image -DHI without breaking package installs, root permissions?
You change one line in your Dockerfile — swap FROM python:3.11-slim for FROM dhi.io/python:3.11-debian12 — kick off the build, and watch it fall ove…
Running a container inside a non-privileged microVM, on an Apple Silicon Mac
If you let an AI agent run arbitrary code — npm install , a test suite, docker build , a Playwright run — you are running untrusted code , and a sha…
Migrating from cron to systemd timers
Cron has run the world’s scheduled jobs for forty years, and on most servers it still works fine. But the moment a job needs structured logging, a c…
Understanding the Kubernetes Architecture
Kubernetes is usually deployed across multiple servers sharing workloads, improving reliability and scaling efficiency called cluster. Kubernetes cl…
From Deployment to Automation: Containerizing a Microservice Application
Introduction After working on deploying a simple API, I wanted to gain a deeper understanding of how modern applications are packaged, tested, and d…