pmem-app-block-volume.yaml

kind: Pod
apiVersion: v1
metadata:
  name: my-csi-app
spec:
  initContainers:
    # This init container is a workaround for https://github.com/kubernetes/kubernetes/issues/85624.
    - name: store-device
      image: ubuntu
      command:
        - "sh"
        - "-c"
        - "(echo '#!/bin/sh' && stat -c 'mknod /dev-xpmem b 0x%t 0x%T' /dev-xpmem) >/data/create-dev.sh && chmod a+x /data/create-dev.sh"
      volumeMounts:
        - name: data
          mountPath: /data
      volumeDevices:
        - name: my-csi-device
          devicePath: /dev-xpmem
  containers:
    - name: my-frontend
      image: ubuntu
      securityContext:
        privileged: True
      command:
        - "sh"
        - "-c"
        # mkfs.ext4 may fail here if the volume was already formatted before, so we ignore the return code.
        - "if [ ! -e /dev-xpmem ]; then /data/create-dev.sh; fi && mkfs.ext4 -b 4096 /dev-xpmem; mkdir -p /mnt && mount -odax /dev-xpmem /mnt && mount | grep /mnt | grep dax && sleep 100000"
      volumeMounts:
        - name: data
          mountPath: /data
  volumes:
  - name: my-csi-device
    persistentVolumeClaim:
      claimName: pmem-csi-pvc-block-volume
  - name: data
    emptyDir: