https://thebighouse.nl/tags/secrets/Recent content in Secrets on TheBigHouseHugoenSat, 17 Oct 2026 00:00:00 +0000https://thebighouse.nl/writing/k8s-05-configmaps-and-secrets/Sat, 17 Oct 2026 00:00:00 +0000https://thebighouse.nl/writing/k8s-05-configmaps-and-secrets/<p>Give the same application different settings in development and production with ConfigMaps and Secrets.</p> <p>Both flats now have nginx, but they still serve the same welcome page. A real application might need a different API address in development, or credentials for a production database. Baking those into the image would mean rebuilding it whenever a setting changes.</p> <p>I prefer to keep the image the same and supply the settings separately. Think of a ConfigMap as a note on the fridge: instructions for whoever lives in that flat. Passwords deserve somewhere less public. Kubernetes has a separate resource for those, called a Secret, though the name needs a little unpacking.</p>