devops - ITNotes

Predicting CPU and RAM Load with Python and Scikit-learn: ML for System Resource Monitoring

March 29, 2026

A practical guide to building a machine learning model that predicts CPU and RAM load before spikes happen — using Python, psutil, and Scikit-learn. Born from a real 2 AM production incident, this tutorial covers data collection, feature engineering, model training with TimeSeriesSplit, and automated Slack alerting.

DevOps

Cloud Cost Optimization in DevOps: A Practical Guide with AWS Cost Explorer and Savings Strategies

March 28, 2026

Facing escalating cloud bills is a common nightmare. This guide walks you through practical strategies and using AWS Cost Explorer to identify and implement significant cost savings in your DevOps environment.

HomeLab

Building a Private Docker Registry on Your HomeLab: Host & Manage Your Own Docker Images

March 27, 2026

Learn to set up your own private Docker Registry on your HomeLab. This tutorial covers everything from basic setup to securing it with HTTPS and authentication, based on 6 months of real-world usage. Gain full control, improve local network speeds, and enhance the security of your Docker image management.

DevOps

Platform Engineering — The Future Beyond Traditional DevOps?

March 26, 2026

Platform Engineering is emerging as the next evolution beyond traditional DevOps, focusing on creating internal developer platforms for enhanced productivity. This guide explores the differences, benefits, and challenges of Platform Engineering, offering a practical approach to implementation. Learn how a dedicated platform team can abstract infrastructure complexity, empowering developers to focus on core application logic and accelerate software delivery.

Linux

Compiling and Installing Software from Source on Linux: Dependency Management and Optimization

March 26, 2026

Learn to compile and install software from source on Linux, gaining full control over features and optimizations. This comprehensive guide walks you through dependency management, the build process, configuration, and crucial verification steps. Master custom installations for your specific needs.

DevOps

Managing Persistent Storage in Kubernetes with PersistentVolume and PersistentVolumeClaim

March 26, 2026

A hands-on look at Kubernetes persistent storage after six months in production — covering static vs dynamic provisioning, StorageClass configuration, PVC binding, and StatefulSet volume management with real examples.

HomeLab

Automate Your HomeLab with Ansible: Configuration & Rapid Service Deployment

March 25, 2026

Streamline your HomeLab with Ansible automation. This tutorial covers quick setup, deep dives into core concepts, advanced usage with roles and vaults, and essential best practices for efficient service configuration and deployment.

DevOps

Navigating Self-Hosted PaaS: My 2 AM Rescue with Coolify (Heroku Alternative)

March 25, 2026

Tired of high Heroku costs and limited control? Discover Coolify, a powerful self-hosted PaaS alternative. This guide covers installation, configuration, and monitoring, ensuring stable and cost-effective application deployments.

DevOps

Comprehensive Observability in DevOps: A Guide to OpenTelemetry

March 25, 2026

This guide demonstrates how to implement comprehensive observability in DevOps using OpenTelemetry. Learn to unify traces, metrics, and logs for faster incident response and a deeper understanding of your distributed systems, complete with practical code examples.

Linux

Centralized Log Management on Linux: Your Rsyslog and Logrotate Playbook

March 25, 2026

Centralized log management is vital for monitoring and troubleshooting Linux environments effectively. This guide provides a hands-on approach to setting up rsyslog for collecting logs and logrotate for managing their lifecycle. Learn to configure your Linux systems for robust, efficient log handling.