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Concept and Usage

Volumes are used to store and persist data in containers. The data will not be lost when the container is restarted or deleted. Volumes can also be used to share data between containers.
Refer to Kubernetes Volume Types for the full list of supported volume types.

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Example

pod-volume.yaml
apiVersion: v1
kind: Pod
metadata:
  name: my-pod
spec:
  containers:
    - name: ubuntu
      image: ubuntu
      command: ["/bin/sh", "-c"]
      args: ["for i in {1..10}; do echo $i >> /output/numbers.txt; done"]
      volumeMounts:
        - name: my-volume    # Must match the volume name below
          mountPath: /output
  volumes:
    - name: my-volume
      hostPath:
        path: /data/output
        type: Directory
In this example, the container output at /output is stored in the host path /data/output. The hostPath volume mounts a file or directory from the host node’s filesystem into the pod.

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