Updating Kubernetes ConfigMap and Secrets without removing the existing one

Posted on Edited on

Kubernetes ConfigMap & Secrets are both really useful for managing environment variables and credentials.

You can create a cnofigmap from shell easily:

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kubectl create configmap app-config --from-env-file ./.env.production

If you wanna change the configuration in configmap, you can just edit it from command line as well:

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kubectl edit configmap admin-config

Very nice and easy.