AI Code Review for Terraform PRs: CI Checklist and Automation
Set up AI Terraform PR review in CI with this 15-item checklist covering tflint, checkov, GPT-4o plan analysis, and GitHub Actions automation.
WooCommerce DB Is Slow: Fix Missing Indexes and Autoload Bloat
Your WooCommerce store passes every load test — until it hits 10,000 orders and the admin grinds to a halt. Here's the exact runbook we use to diagnose and fix the database-layer issues WordPress's default schema never addresses.
WordPress php-fpm Profiling: Three Mistakes That Hid the Real Bottleneck
We had php-fpm slow logging enabled for six weeks and thought we were monitoring everything. Turns out every slow request was silently vanishing into /dev/null — and php-fpm never said a word.
AWS DataSync Task Failures: Finding the Error the Console Hides
DataSync tasks fail silently more often than AWS lets on. Here's the exact runbook — symptoms, root causes, and three fixes — to recover a broken transfer and prevent it from happening again.
WireGuard Multi-Peer Configuration and Zero-Downtime Key Rotation
WireGuard multi-peer configuration and zero-downtime key rotation require careful attention to AllowedIPs scoping, preshared key management, and the correct use of wg syncconf to avoid tunnel disruption. This post walks through the full setup, a reusable automation script, and the operational patterns that keep mesh networks stable under change.
Ansible Rolling Deployment with Zero Downtime, Batch Control, and Automatic Rollback
Ansible rolling deployments with zero downtime give you fine-grained control over how application updates propagate across a fleet — one batch at a time, with automatic rollback if anything goes wrong. This tutorial walks through inventory structure, HAProxy drain/restore integration, and block/rescue failure handling for production-grade deployments.
Nginx Static Asset Caching Strategy and Cache-Control Header Tuning
A focused walkthrough on configuring Nginx location blocks with precise cache lifetimes for static assets. Covers Cache-Control tuning, ETag support, and header validation using real HTTP responses.
Nginx Rate Limiting and Abuse Protection for Public APIs
Unprotected public APIs are a reliable target for scrapers, credential stuffers, and volumetric abuse — and Nginx's built-in rate limiting modules give you a surprisingly capable first line of defense. This tutorial covers zone configuration, burst tuning, connection caps, and proper 429 error responses for API consumers.
PostgreSQL VACUUM Monitoring and Bloat Prevention in Production
Table bloat is one of the quieter killers of PostgreSQL performance — it accumulates gradually, inflates I/O, and often goes unnoticed until query times spike. This post walks through a production-grade approach to measuring bloat, tuning autovacuum per table, and wiring Prometheus alerts before the damage compounds.
RDS Backup Validation and Automated Restore Testing on AWS
Automated RDS snapshot restores give you a repeatable, auditable process for verifying that your database backups are actually recoverable — before an incident forces you to find out otherwise. This post walks through the full pipeline: environment setup, CLI and Terraform configuration, end-to-end validation scripting, and the failure modes that quietly break restore workflows in production.
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