Update k8s ConfigMap or Secret without deleting the existing one

Question

I\'ve been using K8S ConfigMap and Secret to manage our properties. My design is pretty simple, that keeps properties files in a git repo and use build server such as Though

Answer 1

Take a copy of the existing configmap:

kubectl get configmap foo -o yaml > foo.yaml

And then do the modifications and use apply command, this should work.

kubectl apply -f foo.yaml

Note: Incase if you see any of the following issue, then include latest "resourceVersion" from the existing config map and try again.

" Operation cannot be fulfilled on configmaps "foo": the object has been modified; please apply your changes to the latest version and try again"