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Prometheus Alertmanager Silences and Inhibition Rules: Reducing Alert Noise in Production Systems

By admin July 15, 2026

A guide to configuring Alertmanager Silences and Inhibition Rules to reduce alert noise in production environments. Covers integrating amtool into a CI/CD pipeline and setting up inhibition rules for Kubernetes clusters.

Monitoring

Prometheus Federation: Aggregating Metrics from Multiple Clusters into a Single Global View

By admin July 14, 2026

Prometheus Federation lets you aggregate metrics from multiple clusters and regions into a single Global Prometheus, enabling infrastructure-wide queries and alerts without installing Thanos or Cortex. This guide covers practical configuration with recording rules and PromQL queries for multi-region environments.

Linux

A Practical Guide to jq on Linux: Filtering and Processing JSON from APIs in the Terminal

By admin July 8, 2026

When you're debugging production at 2 AM staring at an unreadable wall of JSON in your logs, jq saves you more time than any other approach. This guide compares jq against grep and Python for handling JSON in the terminal, covering everything from basic syntax to filtering Docker containers and Kubernetes API responses in practice.

Centos

Deploying Kubernetes with kubeadm on CentOS Stream 9: Building a Production-Ready Cluster with Containerd and Calico CNI

By admin June 29, 2026

A guide to deploying a production-ready Kubernetes cluster on CentOS Stream 9 with kubeadm, Containerd runtime, and Calico CNI. Covers real-world tips: proper firewall configuration, etcd backup, node draining during maintenance, and avoiding common cluster setup mistakes.

VMware

VMware Photon OS Deployment Guide: The Optimized Linux for Containers and Cloud-Native Workloads on vSphere

By admin June 26, 2026

VMware Photon OS is a minimal Linux distribution purpose-built for running containers and cloud-native workloads on vSphere. This article shares real-world deployment experience from start to finish: deploying from OVA, configuring networking with systemd-networkd, optimizing Docker, and monitoring across an ESXi cluster.

Python

Kubernetes Automation with Python: Going Beyond kubectl

By admin June 19, 2026

Don't let Kubernetes management become a burden. Learn how to use the Python Kubernetes Client to automate Pods, Deployments, and real-time events efficiently.

Fedora

Podman Pod on Fedora: Group Containers with Kubernetes-native Architecture and Auto-generate systemd Services

By admin June 16, 2026

A guide to using Podman Pod on Fedora to group related containers into a single unit following Kubernetes-native architecture. Covers a real-world WordPress + MariaDB example and how to auto-generate systemd services with podman generate systemd so the Pod starts automatically after a reboot.

Docker

Podman Desktop: A Smooth, Secure, and Lightweight Docker Desktop Alternative

By admin June 10, 2026

Podman Desktop is the perfect Docker Desktop alternative: free, lightweight, and more secure with rootless mode. See our detailed guide for Windows and Linux.

Monitoring

How to Install and Configure Thanos to Scale Prometheus: Long-Term Metrics Storage and Global View Across Multiple Clusters

By admin May 29, 2026

Thanos extends Prometheus with long-term metrics storage on S3/MinIO and a global view across multiple clusters in a single dashboard. A step-by-step setup guide using Docker Compose and Kubernetes, with practical operational tips.

Database

Microservices Configuration Management: Why etcd is the Top Choice?

By admin May 24, 2026

Don't let microservices configuration management become a nightmare. Learn how to use etcd to effectively automate configurations and service discovery.