devops Archives - Page 2 of 34

Deploying KubeVela on Kubernetes: Modern Application Delivery with Open Application Model (OAM)

July 17, 2026

After a painful 2 AM production incident caused by environment drift between staging and production Kubernetes clusters, I adopted KubeVela with the Open Application Model (OAM) to define applications once and deploy them consistently everywhere. This guide covers installation, OAM-based configuration with multi-environment policies and approval gates, and monitoring your deployments with CLI commands and Prometheus metrics.

HomeLab

Ditch the Cloud: Self-Host ntfy on Docker for Instant Lab Alerts

July 17, 2026

Tired of missing critical server alerts? Learn how to self-host ntfy on Docker for a private, lightning-fast notification system that works with any script or HomeLab service.

Linux

Mastering Advanced curl: A Guide to API Auth, TLS Debugging, and Automation

July 17, 2026

Learn how to use advanced curl flags for JWT authentication, TLS debugging, and automated API testing directly from the Linux command line.

DevOps

Stop Wasting RAM: Building a Lightweight CI/CD Pipeline with Drone and Gitea

July 16, 2026

Tired of Jenkins eating your RAM? Learn how to build a high-performance, self-hosted CI/CD pipeline using Drone CI and Gitea on Docker. Perfect for VPS environments.

DevOps

Argo CD ApplicationSet: Automate Multi-Cluster Kubernetes App Deployments at Scale

July 14, 2026

Argo CD ApplicationSet solves the multi-cluster app management problem by automatically generating Application resources from generators — turning hundreds of manual manifests into a single declarative spec. This guide walks through installation, List/Git/Matrix generator configuration, and monitoring your generated applications at scale.

DevOps

K9s Tutorial: Manage and Monitor Your Kubernetes Cluster Like a Pro from the Terminal

July 14, 2026

K9s is a terminal-based UI that transforms how you interact with Kubernetes clusters — real-time resource views, one-key log access, inline editing, and instant pod exec, all from your terminal. This guide covers installation, core navigation, and real debugging workflows to help you move faster in production.

AI-Driven SQL Optimization: Using LLMs to Decode Execution Plans

July 14, 2026

Learn how to automate SQL tuning by feeding PostgreSQL Execution Plans into LLMs. This guide shows you how to reduce query costs by 85% and prevent production bottlenecks.

DevOps

ExternalDNS on Kubernetes: Automatically Sync DNS Records to Cloudflare and Route53

July 13, 2026

Manually updating DNS records every time you deploy a Kubernetes service does not scale. ExternalDNS watches your Ingress and LoadBalancer resources and automatically keeps Cloudflare or Route53 in sync — no human intervention needed. This guide walks through installation, configuration for both providers, and how to verify and monitor the setup in production.

Database

PlanetScale Serverless Database: Zero-Downtime Schema Migration with Branching

July 13, 2026

PlanetScale brings Git-style branching to MySQL, making schema migrations non-blocking and reviewable. This guide walks through the deploy request workflow, practical CLI commands, and real-world tips for zero-downtime database changes.

Database

Fast, Typo-Tolerant Search with Typesense and Docker: The Lightweight Elasticsearch Alternative

July 12, 2026

Is Elasticsearch too heavy for your project? Discover how to set up Typesense with Docker for an ultra-fast, typo-tolerant search experience that won't crash your server.