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.
Docker BuildKit Cache Optimization for Faster CI Pipelines
Slow Docker builds in CI waste engineering time and inflate infrastructure costs — BuildKit's registry cache backend eliminates redundant layer rebuilds across pipeline runs. This walkthrough covers enabling BuildKit, configuring cache-from and cache-to flags, and wiring everything into a GitHub Actions workflow with verified cache hits.
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.
EventBridge Retry Policies and DLQ Handling in Production on AWS
Silent event loss is one of the most deceptive failure modes in event-driven architectures on AWS. This tutorial walks through configuring EventBridge retry policies and dead letter queues correctly — from IAM permissions to CloudWatch alerting and replay strategies.
Jenkins to AWS Authentication with OIDC: Replacing Static Keys with Federated Identity
Static AWS access keys in Jenkins are a persistent security liability — rotation is manual, secrets sprawl across credential stores, and a single leak can compromise entire environments. This post walks through configuring OIDC federation between Jenkins and AWS IAM so your pipelines authenticate with short-lived tokens and no stored secrets.
Jenkins Shared Library Structure for Reusable CI Pipelines
A Jenkins shared library centralizes pipeline logic in a single versioned repository, eliminating copy-paste Groovy across every team's Jenkinsfile. This post covers directory structure, step conventions, end-to-end consumption examples, and the serialization pitfalls that catch most engineers off guard.
Loki Retention and Index Tuning for High-Volume Log Pipelines
When log ingestion rates climb into the tens of gigabytes per day, default Loki settings quickly become a liability — bloated indexes, runaway storage costs, and silent retention failures are the most common consequences. This guide walks through a production-grade configuration covering retention policies, TSDB index tuning, and compactor validation for Loki deployments under sustained load.
Reducing Alert Fatigue with Prometheus Alertmanager Routing
Alert fatigue silently degrades incident response — engineers start ignoring notifications, and real incidents get buried in noise. This post walks through Alertmanager routing configuration with inhibition rules, grouping strategies, and tiered receivers to restore signal quality in production monitoring.
Argo CD Progressive Delivery: Canary Releases with Automated Health Gates
Progressive delivery with Argo CD and Argo Rollouts gives platform teams fine-grained control over canary promotions, replacing manual intervention with metric-driven health gates. This tutorial walks through defining a Rollout resource, wiring AnalysisTemplates to Prometheus, and operating a full canary cycle from image push to stable promotion.
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