Pod block device

container.yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: block-dev
spec:
  accessModes:
    - ReadWriteOnce
  volumeMode: Block
  storageClassName: rook-ceph-block
  resources:
    requests:
      storage: 3Gi
---
apiVersion: v1
kind: Pod
metadata:
  name: workspace
  namespace: default
spec:
  containers:
    - name: workspace
      image: ubuntu:22.04
      imagePullPolicy: IfNotPresent
      command: ["/usr/bin/sleep", "7200"]
      volumeDevices:
        - name: workspace
          devicePath: /dev/workspace
      securityContext:
        privileged: true
  volumes:
    - name: workspace
      persistentVolumeClaim:
        claimName: block-dev

initContainer.yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: block-dev
spec:
  accessModes:
    - ReadWriteOnce
  volumeMode: Block
  storageClassName: rook-ceph-block
  resources:
    requests:
      storage: 3Gi
---
apiVersion: v1
kind: Pod
metadata:
  name: workspace
  namespace: default
spec:
  initContainers:
    - name: mkfs-mount
      image: ubuntu:22.04
      command: ["/bin/bash","-c","/usr/sbin/mkfs.ext4 -m1 /dev/workspace && mount -t ext4 -o user_xattr /dev/workspace /workspace"]
      securityContext:
        privileged: true      
      volumeDevices:
        - name: dev-workspace
          devicePath: /dev/workspace
      volumeMounts:
        - name: dir-workspace
          mountPath: /workspace
  containers:
    - name: workspace
      image: ubuntu:22.04
      imagePullPolicy: IfNotPresent
      command: ["/usr/bin/sleep", "3600"]
      volumeMounts:
        - name: dir-workspace
          mountPath: /workspace
  volumes:
    - name: dev-workspace
      persistentVolumeClaim:
        claimName: block-dev
    - name: dir-workspace
      emptyDir: {}