Volume Spec

One of the many types of storage available is an emptyDir. The kubelet will create the directory in the container, but not mount any storage. Any data created is written to the shared container space. As a result, it would not be persistent storage. When the Pod is destroyed, the directory would be deleted along with the container.

apiVersion: v1
kind: Pod
metadata:
    name: fordpinto 
    namespace: default
spec:
    containers:
    - image: simpleapp 
      name: gastank 
      command:
        - sleep
        - "3600"
      volumeMounts:
      - mountPath: /scratch
        name: scratch-volume
    volumes:
    - name: scratch-volume
            emptyDir: {}

The YAML file above would create a Pod with a single container with a volume named scratch-volume created, which would create the /scratch directory inside the container.