Working with Kubernetes Secrets

Assuming your kube context and namespace that are of your interest are kube-ctxand kube-ns respectively

To create a secret (using yaml configuration file secret.yml, see ex: below)

apiVersion: v1
kind: Secret
metadata:
  name: secret-name
  namespace: kube-ns
type: Opaque
data:
  secret-key: MWYyZDFlMmU2N2Rm

Visit the documentation, to see a full list of available options for defining a secret

To apply the above configuration file

kubectl --context kube-ctx apply -f secret.yml

To list all secrets for a namespace

kubectl --context kube-ctx -n kube-ns get secrets

To describe a secret (assuming you are interested in the secret secret-name), either use the describe option

kubectl --context kube-ctx -n kube-ns describe secret/secret-name

or the get option

kubectl --context kube-ctx -n kube-ns get secret/secret-name -o yaml

To decode (base64) the secret (assuming your secret key is secret-key, which you can get from the Data or data section from the previous command outputs)

kubectl --context kube-ctx -n kube-ns get secret secret-name -o jsonpath={.data."secret-key"} | base64 -D