Secrets stored in the etcd is not secure at rest, you can use the etcdctl...

Secrets stored in the etcd is not secure at rest, you can use the etcdctl command utility to find the secret value

for e.g:-

ETCDCTL_API=3 etcdctl get /registry/secrets/default/cks-secret --cacert="ca.crt" --cert="server.crt" --key="server.key"

Output

Using the Encryption Configuration, Create the manifest, which secures the resource secrets using the provider AES-CBC and identity, to encrypt the secret-data at rest and ensure all secrets are encrypted with the new configuration.