Ephemeral storage

When local ephemeral (temporal) storage is needed, an emptyDir should be issued. It is local to the node, on Rahti 2 this is RAID-1 SSD storage. It can be shared across several containers in the same Pod, and it the fastest filesystem available in Rahti 2 but it will be lost when the Pod is killed or restarted. It is declared directly in the Pod definition:

podWithEmptydDir.yaml:

apiVersion: v1
kind: Pod
metadata:
  name: my-app
  labels:
    app: my-application
spec:
  volumes:
  - name: volume-a
    emptyDir: {}
  containers:
  - name: container-a
    image: centos:7
    volumeMounts:
    - mountPath: /outputdata
      name: volume-a
  - name: container-b
    image: centos:7
    volumeMounts:
    - mountPath: /interm
      name: volume-a

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Last update: July 26, 2024

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