DevOps & Infrastructure

Cloud API costs are the silent killer of SaaS unit economics. AI APIs in particular can generate unexpected bills when called without budgets, caching, or rate limiting. This guide covers a systematic approach to auditing, controlling, and testing your API cost assumptions before they become business-critical surprises.

Chaos engineering deliberately breaks things before they break on their own — in a controlled environment, with observability, and with a hypothesis. This guide covers practical chaos experiments for SaaS applications: network latency injection, dependency failure simulation, and building confidence that your system degrades gracefully under real-world failure conditions.

Webhooks are the nervous system of event-driven architectures — but they are also the most likely integration point to fail silently. A webhook that times out, delivers events out of order, or duplicates on retry can corrupt your application's state. This guide covers automated testing of every failure mode.

Infrastructure code is production code. Untested Helm charts, Terraform modules, and Kubernetes manifests are defects waiting to surface during the worst possible deployment. This guide covers how to test IaC with helm unittest, Conftest policies, Terraform test, and integration tests in real clusters.

Ephemeral per-PR environments solve the staging contention problem — every pull request gets its own isolated environment, runs tests against real infrastructure, and tears down automatically on merge. This guide covers building ephemeral Kubernetes test environments with namespace isolation and automated lifecycle management.