How can I update a secret on Kubernetes when it is generated from a file?

Question

I've created a secret using

kubectl create secret generic production-tls \
  --from-file=./tls.key \
  --from-file=./tls.crt

If I'd like to update the values - how can I do this?

Answer 1

This should work:

kubectl create secret generic production-tls \
--save-config \
--dry-run=client \
--from-file=./tls.key --from-file=./tls.crt \
-o yaml | \
kubectl apply -f -