How to persist data on a legacy application in Kubernetes?

Question

You work on a legacy application that stores significant amount of data on the file system of its VM. You do not want to re-write the application to use an external service to persist the file system data. What should you do ?

Accepted Answer

Create a StatefulSet `statefulset.yaml` file . Run the  command `kubectl apply -f statefulset.yaml`

Answer

Create a StatefulList `statefullist.yaml` file . Run the  command `kubectl apply -f statefullist.yaml`

Answer

Create a  ReplicaSet `replicaset.yaml` file . Run the  command `kubectl apply -f replicaset.yaml`

Answer

Create a StatefulMap `statefulmap.yaml` file . Run the  command `kubectl apply -f statefulmap.yaml`

Question from the Kubernetes test

How to persist data on a legacy application in Kubernetes?