#Using an emptyDir

In Kubernetes, an emptyDir is a simple ephemeral volume type that provides temporary storage to a pod during its lifetime. It is created when a pod is assigned to a node, and deleted when the pod is removed from that node.

#Example emptyDir

This Pod creates a temporary volume mounted at /data, which is shared with the container.

apiVersion: v1
kind: Pod
metadata:
  name: emptydir-demo
spec:
  containers:
    - name: app
      image: busybox
      command: ["sh", "-c", "echo hello > /data/hello.txt && sleep 3600"]
      volumeMounts:
        - mountPath: /data
          name: cache-volume
  volumes:
    - name: cache-volume
      emptyDir: {}

#Optional Medium Setting

You can choose where the data is stored:

emptyDir:
  medium: "Memory"

#Key Characteristics

#Common Use Cases

• Caching intermediate build artifacts

• Buffering logs

• Temporary work directories

• Sharing data between containers in the same pod (like sidecars)