AAAdnan Arifinqacop.hashnode.devDocker for People Who Just Want It to WorkDocker for People Who Just Want It to Work Docker tutorials love to explain Linux namespaces, cgroups, and container internals. You don't care about that. You just want your application to run the same way everywhere—on your machine, on your colleagu...16h ago·5 min read
KRKunja Ravi Kiranincodeops-labshashnodedev.hashnode.dev🚀 Docker Multi-Stage Builds & Distroless Images — Reducing ~700MB to ~2MB (Practical Demo)One of the most common production problems in containerized applications is unnecessarily large Docker images. You build a small application…And your final Docker image is: 700MB 800MB Sometimes ev1d ago·7 min read
AMAndrii Melashchenko, PhDinblog.javatask.devWhy Quadlet Is Different. Part 1: Resource Governance That Compose Can't Express [WIP]This series examines the specific technical capabilities — not available in the Compose specification — that make Podman Quadlet a structurally different tool for production workloads on industrial ed1d ago·9 min read
AMAndrii Melashchenko, PhDinblog.javatask.devWhy Quadlet Is Different. Part 2: Defence-in-Depth Cybersecurity at the Service Level [WIP]From Resource Limits to Security Boundaries Part 1 of this series showed how Quadlet inherits resource governance capabilities from systemd that Compose structurally cannot express — soft memory throt1d ago·10 min read
AMAndrii Melashchenko, PhDinblog.javatask.devWhy Quadlet Is Different. Part 3: Production Lifecycle on the Factory Floor [WIP]How It Starts, Stops, and Recovers Matters Part 1 covered resource governance — the directives that protect shared hardware from its workloads. Part 2 covered cybersecurity — the defense-in-depth laye1d ago·10 min read
ARAmir Reza Dalirinunderthehood.hashnode.devDocker vs Singularity: What Changes When You Move to HPCIf you've spent years with Docker and suddenly land on an HPC cluster that runs SingularityCE, the transition is smoother than you'd expect. Here's a condensed comparison covering the key differences.1d ago·3 min read
MSManvendra Singhincloud-club.hashnode.devKubernetes for Beginners: A Simple Guide to Container OrchestrationThe art of dealing with modern applications is somewhat like an octopus dealing with different tasks simultaneously and keeping control. Modern software applications are spread across different machin2d ago·7 min read
Ttarunintarungampa.hashnode.dev10 kubectl Tips Every Kubernetes User Should KnowIf you've been using Kubernetes for a while, you probably have a handful of kubectl commands memorized. kubectl get pods, kubectl apply -f, kubectl logs — the classics. But there's a lot more hiding i2d ago·5 min read
DYDharamraj Yadavindharamin.hashnode.devGetting Started with Docker: Images, Containers, Volumes, and Networks 🐳Hello Everyone as part of my journey transitioning to DevSecOps, today i dove into Docker. In simple terms Docker is a software platform that allows you to build, test and deploy your applications qui3d ago·2 min read
ARAmir Reza Dalirindiphyx.hashnode.devInstalling Docker or Podman Shouldn't Require a PhDYou just want to run a container. Maybe it's a web app. Maybe it's a machine learning model. Maybe it's a simulation for your research. Whatever it is, you need Docker or Podman on your Linux machine,4d ago·3 min read
