laravel-oauth | laravel 4 OAuth wrapper | OAuth library

The note you refer to is for the base64 encoded string itself (not the content that was encoded).

Using secrets as env var will potentially expose them via the dashboard "preview eye" (if you use the Kube Dashboard), you should mount them into a directory and make the app load them from there instead; I fell for that too and was surprised I was able to view the secret.

I've not come across the stripping of new line characters, as the above command would simply do a base64 of the content (including new line chars). That said, storing the secrets b64 encoded is not exactly safe either, you should consider using sealed-secrets (bitnami) instead, it works just like normal secrets, but is actually encrypted at rest.

HTH, Alex