instruction: Create a Kubernetes Pod configuration with best practices
output: ```dockerfile
  from the kubelet base directory (usually
  the root disk) or RAM
  configMap,
  downwardAPI,
  secret: inject different
  kinds of Kubernetes data into a Pod
  CSI ephemeral volumes:
  similar to the previous volume kinds, but provided by special CSI drivers
  which specifically support this feature
  generic ephemeral volumes, which
  can be provided by all storage drivers that also support persistent volumes
  
  emptyDir, configMap, downwardAPI, secret are provided as
  local ephemeral
  storage.
  They are managed by kubelet on each node.
  CSI ephemeral volumes must be provided by third-party CSI storage
  drivers.
  Generic ephemeral volumes can be provided by third-party CSI storage
  drivers, but also by any other storage driver that supports dynamic
  provisioning. Some CSI drivers are written specifically for CSI
  ephemeral volumes and do not support dynamic provisioning: those then
  cannot be used for generic ephemeral volumes.
  The advantage of using third-party drivers is that they can offer
  functionality that Kubernetes itself does not support, for example
  storage with different performance characteristics than the disk that
  is managed by kubelet, or injecting different data.
  CSI ephemeral volumes
  
  FEATURE STATE: Kubernetes v1.25 [stable]
  
  Note:CSI ephemeral volumes are only supported by a subset of CSI drivers.
  The Kubernetes CSI Drivers list
  shows which drivers support ephemeral volumes.
  Conceptually, CSI ephemeral volumes are similar to configMap,
  downwardAPI and secret volume types: the storage is managed locally on each
  node and is created together with other local resources after a Pod has been
  scheduled onto a node. Kubernetes has no concept of rescheduling Pods
  anymore at this stage. Volume creation has to be unlikely to fail,
  otherwise Pod startup gets stuck. In particular, storage capacity
  aware Pod scheduling is not
  supported for these volumes. They are currently also not covered by
  the storage resource usage limits of a Pod, because that is something
  that kubelet can only enforce for storage that it manages itself.
  Here's an example manifest for a Pod that uses CSI ephemeral storage:
  kind: Pod
  apiVersion: v1
  metadata:
   name: my-csi-app
  spec:
   containers:
   - name: my-frontend
   image: busybox:1.28
   volumeMounts:
   - mountPath: "/data"
   name: my-csi-inline-vol
   command: [ "sleep", "1000000" ]
   volumes:
   - name: my-csi-inline-vol
   csi:
   driver: inline.storage.kubernetes.io
   volumeAttributes:
   foo: bar
  The volumeAttributes determine what volume is prepared by the
  driver. These attributes are specific to each driver and not
  standardized. See the documentation of each CSI driver for further
  instructions.
  CSI driver restrictions
  CSI ephemeral volumes allow users to provide volumeAttributes
  directly to the CSI driver as part of the Pod spec. A CSI driver
  allowing volumeAttributes that are typically restricted to
  administrators is NOT suitable for use in an inline ephemeral volume.
  For example, parameters that are normally defined in the StorageClass
  should not be exposed to users through the use of inline ephemeral volumes.
  Cluster administrators who need to restrict the CSI drivers that are
  allowed to be used as inline volumes within a Pod spec may do so by:
  
  Removing Ephemeral
  ```