devops Archives - Page 14 of 47

Networking tutorial - IT technology blog

Ditch the VPN: Building an Identity-Aware Proxy with Pomerium

July 28, 2026

Tired of slow VPNs? This guide shows you how to set up Pomerium, a modern Identity-Aware Proxy, to secure your internal tools with Zero Trust logic using Docker and GitHub.

Database

Database Observability: Connecting SQL Queries to Application Traces with OpenTelemetry

July 27, 2026

Bridge the gap between application traces and database logs. This guide explains how to use OpenTelemetry and SQLCommenter to inject trace metadata into SQL queries for faster debugging.

Networking

Bypassing DPI: How to Tunnel WireGuard over WebSockets with WSTunnel

July 27, 2026

Bypass UDP blocking and DPI by tunneling WireGuard through WebSockets. This guide provides a step-by-step setup using WSTunnel to keep your VPN connected in restricted networks.

DevOps

Deploy Unleash on Docker: Self-Host Feature Flags for Zero-Downtime Feature Control and A/B Testing

July 21, 2026

Learn how to self-host Unleash on Docker to implement feature flags and A/B testing without redeploying your production apps. This guide covers a 5-minute quick start, SDK integration in Python and Node.js, gradual rollouts, variant-based A/B testing, and production hardening tips — written from real incident experience.

DevOps

Kubernetes Smart Alerting: Using Robusta to Automate Diagnostics and Slash MTTR

July 21, 2026

Slash your Kubernetes MTTR by automating alert enrichment. This guide explains how to use Robusta to turn vague notifications into diagnostic reports with logs and one-click remediation.

Database

PostgreSQL Job Queue with SKIP LOCKED and Advisory Locks: Background Tasks Without Redis or RabbitMQ

July 20, 2026

Learn how to build a reliable background job queue using PostgreSQL's SKIP LOCKED and Advisory Locks — no Redis or RabbitMQ required. Covers worker implementation in Python, retry logic with exponential backoff, per-resource locking, and queue monitoring using plain SQL.

DevOps

Kube-green: Automatically Suspend Kubernetes Workloads After Hours to Cut Dev/Staging Cloud Costs

July 20, 2026

After watching a $847/month dev cluster bill for workloads idle 65% of the time, I set up kube-green — a Kubernetes operator that suspends Deployments and StatefulSets outside working hours. Six months later, monthly costs dropped to $290 with zero operational issues.

Database

Mastering Database Replication Lag: Monitor, Diagnose, and Fix Sync Delays in PostgreSQL and MySQL

July 19, 2026

Database replication lag can silently corrupt your users' experience — orders appearing unpaid, inventory showing wrong counts. This guide covers how to monitor replication lag in PostgreSQL and MySQL, diagnose the root cause across network, disk, and query layers, and apply targeted fixes including parallel replication and WAL tuning.

Database

Deploying OpenSearch on Docker: A Guide to Full-Text Search and Log Analytics

July 19, 2026

Ditch slow SQL queries. This guide shows you how to set up OpenSearch and Dashboards using Docker for high-performance full-text search and log analytics.

HomeLab

Stop Using Bitly: Self-Host Your Own URL Shortener with Shlink and Docker

July 19, 2026

Ditch Bitly's restrictive limits. Learn to deploy Shlink, a modern self-hosted URL shortener, using Docker and MariaDB for professional link management and full data ownership.