#config

2 posts.

Kubernetes ConfigMaps and Secrets

How to externalize configuration and credentials in Kubernetes — ConfigMap YAML, Secret YAML, mounting as env vars vs files, and patterns for reloading config without rebuilding images.

Jun 16, 2026 ·8 min read · #kubernetes#intermediate#config

Docker: Environment Variables and Secrets

How to feed configuration into Docker containers without baking it into the image — ENV vs ARG, --env-file, Compose env, BuildKit secret mounts, and Docker Swarm secrets, with safe defaults.

Jun 16, 2026 ·8 min read · #docker#intermediate#config