DevOps – ITFROMZERO – Share tobe shared!

Installing Node.js and PM2 on Fedora Server: Deploying JavaScript Applications in Production with SELinux and firewalld

By admin July 19, 2026

A step-by-step guide to installing Node.js and PM2 on Fedora Server and properly handling SELinux and firewalld to deploy JavaScript applications in production. Covers SELinux port labeling, network connect boolean, PM2 cluster mode, and systemd integration.

Virtualization

Automating Proxmox VE with Python: Stop Wasting Time on Manual Clicks

By admin July 19, 2026

Automating Proxmox VE with Python saves you hours of manual clicking. A detailed guide on cloning VMs, managing snapshots, and monitoring resources automatically.

Docker

Optimizing Docker Compose: Using YAML Anchors and Merge Keys to Clean Up Redundant Code

By admin July 19, 2026

Learn how to use YAML Anchors and Merge Keys to clean up Docker Compose. A solution for tidier, more maintainable, and professional microservices configuration files.

Python

Automating Docker with Python: From Bash Scripts to a Professional SDK

By admin July 18, 2026

No more typing Docker commands by hand. Learn to use the Docker SDK for Python to automate Container, Image, and Network management — with real-world error handling experience included.

Docker

Docker Scout: A ‘Magnifying Glass’ for Security Vulnerabilities and How to Patch Images from CLI to CI/CD

By admin July 18, 2026

Learn how to use Docker Scout to scan for security vulnerabilities, patch critical CVEs, and automate testing with GitHub Actions to protect your images.

Ubuntu

Building Your Own S3-Compatible Object Storage with MinIO on Ubuntu Server

By admin July 18, 2026

A detailed guide on installing MinIO Object Storage on Ubuntu Server. The perfect AWS S3 alternative to optimize storage costs and boost application performance.

Python

Building a Telegram Bot with Python and python-telegram-bot: Receive Notifications and Control Your Server Remotely

By admin July 17, 2026

A step-by-step guide to building a Telegram Bot with Python and python-telegram-bot v20+ for remote server monitoring and control. Covers command handling, inline confirmation keyboards, proactive alerts from cron jobs, and running the bot as a systemd service.

Docker

nsenter: The Network Debugging “Lifesaver” for Lightweight Docker Containers (Distroless/Alpine)

By admin July 17, 2026

Stop rebuilding Docker images just to install curl or ping. Use nsenter to directly access the Network Namespace and debug like a pro.

Docker

Docker Volume & NFS: The ‘Lifesaver’ Solution for Multi-Host Data

By admin July 17, 2026

A guide on configuring Docker Volumes with the NFS Driver for multi-host data sharing. A simple, effective solution for Docker Swarm and High Availability.

Docker

Colima Guide: A Smooth Docker Desktop Alternative, a ‘Lifesaver’ for RAM on macOS

By admin July 17, 2026

Don't let Docker Desktop hog all your RAM. Learn how to switch to Colima: a lightweight, free Docker Engine alternative perfectly optimized for macOS M1/M2/M3.