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NestJS Health Checks with Terminus for Kubernetes & Docker

Backend

June 20269 min read

NestJS Health Checks with Terminus for Kubernetes & Docker

A practical walkthrough of building liveness and readiness probes in NestJS with the official @nestjs/terminus package, wired into real Docker and Kubernetes configs.

Controlling Docker From Your Backend: dockerode and the Socket

DevOps

June 202611 min read

Controlling Docker From Your Backend: dockerode and the Socket

How to let a Node.js backend list, start, and create Docker containers directly with dockerode — and why mounting the Docker socket is a security decision, not a shortcut.

NestJS Custom Decorators: Metadata, Reflector & Guards

Backend

June 202610 min read

NestJS Custom Decorators: Metadata, Reflector & Guards

The mental model most NestJS tutorials skip: decorators just attach metadata, and guards read that metadata back at request time with Reflector. Once that clicks, custom decorators stop feeling like magic.

Docker BuildKit Cache Mounts: Cut CI Build Times in Half

DevOps

June 20269 min read

Docker BuildKit Cache Mounts: Cut CI Build Times in Half

Package manager installs shouldn't re-download from scratch on every commit. BuildKit cache mounts let npm, apt, pip, and Go caches survive across builds without bloating your final image.