Secrets in Kubernetes are encoded using base64.
If you have the secret name, you can ask for its value. If not, then learn how to get a secret in Kubernetes.
How to retrieve the value of a secret in Kubernetes
kubectl get secret admin-user-pass -o jsonpath='{.data}'
This will output a JSON as follows:
{"password":"amYzOTJoZjc4MmhmOTMyaAo=","username":"YWRtaW51c2VyCg=="}
How to decode the value of a secret in Kubernetes
Values are always base64 encoded, so decoding it will look like this:
echo 'amYzOTJoZjc4MmhmOTMyaAo=' | base64 --decode
This prints the decoded value of our original secret we stored before.
jf392hf782hf932h