Posts

Pod Disruption Budgets (PDBs) are crucial for maintaining application availability during voluntary disruptions like node drains or cluster upgrades. Understanding PDB Basics PDBs define the minimum number of pods that must remain available during voluntary disruptions. Basic PDB Configuration apiVersion: policy/v1 kind: PodDisruptionBudget metadata: name: app-pdb spec: minAvailable: 2 selector: matchLabels: app: critical-service Implementation Strategies 1. Absolute vs. Percentage Values Choose between: minAvailable: 2: Absolute number minAvailable: "50%": Percentage-based 2. Using maxUnavailable apiVersion: policy/v1 kind: PodDisruptionBudget metadata: name: app-pdb spec: maxUnavailable: 1 selector: matchLabels: app: critical-service Best Practices PDB Calculation ...

Horizontal Pod Autoscaling (HPA) is a crucial component for maintaining application performance and resource efficiency in Kubernetes clusters. This guide explores implementation best practices and common pitfalls to avoid. Understanding HPA Fundamentals HPA automatically scales the number of pods in a deployment based on observed metrics. While CPU and memory are common scaling triggers, custom metrics can provide more meaningful scaling decisions. Key Metrics Selection When choosing metrics for HPA, consider: ...

If you have a custom domain and want a professional website without ongoing hosting costs, consider building a static website delivered through a Content Delivery Network (CDN). This approach offers excellent performance, high availability, and simple maintenance. My website uses this architecture, with the domain registration as my only recurring cost. Prerequisites Before getting started, you’ll need: A domain name A Git account (GitHub, GitLab, or similar) Basic command line familiarity About 1-2 hours for initial setup Domain Registration Your choice of domain registrar can significantly impact your annual costs. For supported top-level domains (TLDs), Cloudflare’s Domain Registration service (https://www.cloudflare.com/products/registrar/) stands out by charging only wholesale prices without markup or hidden fees. ...