Does anyone have OpenZFS filesystem with AWS Parallelcluster working ?

Q: Has anyone created an OpenZFS volume in FSx and been able to mount the volume using the pcluster3 cli in AWS Parallelcluster ? It doesn't seem to work. I created an OpenZFS filesystem, but I can't get it to mount using from in the pcluster cli. I do not have this issue with other filesystems. The YAML descriptors for the filesystem mount looks like this:

SharedStorage:
  - Name: modelingtest
    StorageType: FsxLustre
    MountDir: /fsx
    FsxLustreSettings:
      FileSystemId: fs-045ffe08c17984010

It seems the CLI spits out a non-descriptive error before the cluster build even starts. This looks like a cli bug to me.

pcluster create-cluster --cluster-configuration ./bluefishtestfsx.yaml --cluster-name testami --region us-east-1
{
  "message": "'NoneType' object has no attribute 'get'"
}

The documenation for this is interesting too. It says you need to specifiy the storage size unless the "FileSystemID" is specified. https://docs.aws.amazon.com/parallelcluster/latest/ug/SharedStorage-v3.html

If I add the filesystem size, we get a different error which makes sense.

 pcluster create-cluster --cluster-configuration ./bluefishtestfsx.yaml --cluster-name testami --region us-east-1
{
  "configurationValidationErrors": [
    {
      "level": "ERROR",
      "type": "ConfigSchemaValidator",
      "message": "[('SharedStorage', {0: {'FsxLustreSettings': {'_schema': ['storage_capacity is ignored when an existing Lustre file system is specified.']}}})]"
    }
  ],
  "message": "Invalid cluster configuration."
}