DevOps – ITFROMZERO – Share tobe shared!

Add Columns to a 200 Million Record Table in 0.1 Seconds: The Power of ALGORITHM=INSTANT in MySQL 8.0

By admin June 8, 2026

Discover how to use ALGORITHM=INSTANT in MySQL 8.0 to add or drop columns on tables with hundreds of millions of records in milliseconds, completely eliminating downtime.

MySQL

Cleaning Up Million-Row MySQL Tables: Don’t Let DELETE Commands Crash Your System

By admin June 7, 2026

Don't let a DELETE command crash your server! Discover 3 safe techniques for cleaning up million-row MySQL tables: Batching, Partitioning, and pt-archiver based on real-world experience.

Linux

Practical Bash Scripting: Automating Linux from Scratch

By admin June 7, 2026

Learn how to write professional Bash Scripts to automate Linux. Detailed guide on variables, loops, functions, and practical error-handling techniques like set -euo pipefail.

Python

Mastering Subprocess in Python: Don’t Let Your Scripts Crash Due to os.system

By admin June 6, 2026

Learn how to use subprocess instead of os.system to run system commands safely, handle output intelligently, and avoid shell injection security risks.

Python

Automating AWS S3 with Boto3: Don’t Let File Management Become a Nightmare

By admin June 6, 2026

Managing millions of files on AWS S3 no longer has to be a nightmare. Discover how to use Boto3 Python to automate uploads, downloads, and optimize performance with Multipart Upload.

VMware

Automating VMware vSphere with Ansible: From ‘Manual Clicks’ to Infrastructure as Code

By admin June 6, 2026

A complete guide to automating VMware vSphere with Ansible. Learn how to set up pyVmomi, write Playbooks for bulk VM deployment, and manage an 8-host cluster efficiently.

Artificial Intelligence tutorial - IT technology blog

Streamlining AI Agents with Smolagents: A Lightweight Automation ‘Weapon’ for DevOps

By admin June 6, 2026

Don't let heavy AI frameworks slow down your workflow. Smolagents helps you build lightweight AI agents that execute Python code directly to handle real-world tasks with just a few lines of code.

Git

Stop Manual Versioning! Automate Your Version Strings with git describe

By admin June 6, 2026

Forget manual versioning! Learn how to use git describe to automatically generate professional version strings from commit history, making your CI/CD workflow more accurate and effortless.

Monitoring

Monitoring Apache Kafka with Prometheus and Grafana: Consumer Lag, Throughput, and Topic Health in Production

By admin June 5, 2026

A comparison of Apache Kafka monitoring approaches (AKHQ, Burrow, JMX Exporter) and a hands-on deployment guide using JMX Exporter + kafka-exporter + Prometheus + Grafana to track consumer lag, broker throughput, and topic health. Includes production-ready PromQL queries and alert rules.

Fedora

Configuring Fedora Server as an iSCSI Target with targetcli: Sharing Block Storage Over a Local Network

By admin June 5, 2026

A guide to configuring Fedora Server as an iSCSI Target using targetcli — covering installation, creating file-based or LVM backstores, configuring ACLs for security, connecting from a Linux initiator, and real-world I/O monitoring. Suitable for virtualization labs, home servers, or shared storage in small teams.