force delete namespace

k get ns delete-ns-name -ojson

# edit finalizer to empty slice

kubectl proxy &
PID=$!
curl -X PUT http://localhost:8001/api/v1/namespaces/delete-me/finalize -H "Content-Type: application/json" --data-binary @ns-without-finalizers.json
kill $PID

reference

• There is no way to force delete Namespaces with invalid finalizers #77086