Docker – Page 2 – ITFROMZERO

Virtualization tutorial - IT technology blog

How to Use Vagrant for a Consistent Dev Environment — No More ‘Works on My Machine’

By admin March 1, 2026

Vagrant standardizes dev environments with a Vagrantfile committed to git — putting an end to the 'works on my machine' problem. This article compares manual VMs, Docker, and Vagrant, analyzes when to use each, and provides a step-by-step setup guide from a single VM to a multi-machine production simulation.

Docker

Deploying Node.js with Docker: Tips & Tricks from Real-World Experience

By admin March 1, 2026

Real-world experience deploying Node.js apps with Docker the right way: avoiding bloated images, handling graceful shutdown, managing environment variables securely, and configuring health checks for production.

Artificial Intelligence tutorial - IT technology blog

Installing Open WebUI: A Unified Web Interface for Managing Multiple AI Models

By admin February 28, 2026

A step-by-step guide to installing Open WebUI with Docker to manage multiple AI models — Ollama, GPT-4, Claude, and Gemini — from a single interface. Up and running in 5 minutes, with a full production deployment guide using Docker Compose and Nginx.

Docker

Install Portainer to Manage Docker via UI — No More Memorizing Commands, No More Mistakes

By admin February 28, 2026

Managing Docker via CLI every day is time-consuming and error-prone as your container count grows. This guide walks you through installing Portainer CE with Docker Compose v2, basic security configuration, and practical tips for more effective container management via the web interface.

Docker

Docker Swarm Basics: A Complete Guide to Deploying Container Clusters from A to Z

By admin February 28, 2026

Docker Swarm frees you from the single-host trap: automatically distributes containers, scales with a single command, and performs zero-downtime rolling updates. This guide walks from a real-world problem to a fully working cluster setup, step by step.