Posted inSecurity
Nipping Cloud Vulnerabilities in the Bud with Checkov
Automatically scan for IaC security flaws with Checkov. A solution to detect vulnerabilities in Terraform, Kubernetes, and CloudFormation before deploying to the Cloud.
Posted inDocker
k3d Guide: Create a “Lightweight” Kubernetes Cluster on Docker in Just 30 Seconds
Stop worrying about low-end hardware when learning Kubernetes. Detailed guide on using k3d to create lightweight clusters on Docker, saving RAM and booting in 30 seconds.
Posted inMonitoring
Prometheus Alertmanager Silences and Inhibition Rules: Reducing Alert Noise in Production Systems
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.
Posted inMonitoring
Prometheus Federation: Aggregating Metrics from Multiple Clusters into a Single Global View
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.
Posted inLinux
A Practical Guide to jq on Linux: Filtering and Processing JSON from APIs in the Terminal
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.
Posted inCentos
Deploying Kubernetes with kubeadm on CentOS Stream 9: Building a Production-Ready Cluster with Containerd and Calico CNI
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.
Posted inVMware
VMware Photon OS Deployment Guide: The Optimized Linux for Containers and Cloud-Native Workloads on vSphere
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.
Posted inPython
Kubernetes Automation with Python: Going Beyond kubectl
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.
Posted inFedora
Podman Pod on Fedora: Group Containers with Kubernetes-native Architecture and Auto-generate systemd Services
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.
Posted inDocker
Podman Desktop: A Smooth, Secure, and Lightweight Docker Desktop Alternative
Podman Desktop is the perfect Docker Desktop alternative: free, lightweight, and more secure with rootless mode. See our detailed guide for Windows and Linux.