devops
Monitoring and Observability Basics
Monitoring tells you when your app is broken before your users do. This guide covers logs, metrics, error tracking, uptime monitoring, and the essential tools for small teams running live products.
Observability Deep Dive
The three pillars of observability in depth — logs, metrics, traces — plus OpenTelemetry, correlation IDs, and SLO-based alerting.
Secrets and Config Management
Every app has settings that change between environments and sensitive values that must never leak. This guide explains the difference between config and secrets, where each should live, and how to manage rotation.
SRE and Incident Management
Site Reliability Engineering — how to set reliability targets, manage incidents calmly, and run blameless postmortems so reliability compounds over time.
Testing and QA
Automated testing lets you ship fast without breaking things. This guide explains the test pyramid, types of tests, how they fit into CI/CD, and how to get started without overcomplicating it.