Unable to create Fsx for OpenZFS Multi-AZ file system

[shmulikah]

What happened?

When trying to create Fsx filesystem for OpenZFS with deployment type: Multi-AZ, I received the following error:

  aws:fsx:OpenZfsFileSystem (fsxOpenZfs):
    error: 1 error occurred:
        * creating FSx for OpenZFS File System: BadRequest: 1 validation error detected: Value '[subnet-xxxxxxxxxxxxxxxxx,
           subnet-xxxxxxxxxxxxxxxxx]' at 'subnetIds' failed to satisfy constraint: Member must satisfy constraint: 
           [Member must have length less than or equal to 24, Member must have length greater than or equal to 15, 
           Member must satisfy regular expression pattern: ^(subnet-[0-9a-f]{8,})$]

Example

fsx_open_zfs = fsx.OpenZfsFileSystem(
                        "fsxOpenZfs",
                        subnet_ids="subnet-xxxxxxxxxxxxxxxxx,subnet-xxxxxxxxxxxxxxxxx",
                        deployment_type="MULTI_AZ_1",
                        throughput_capacity=320,
                        automatic_backup_retention_days=7,
                        storage_capacity=500,        
                        preferred_subnet_id="subnet-xxxxxxxxxxxxxxxxx",
                        disk_iops_configuration=fsx.OpenZfsFileSystemDiskIopsConfigurationArgs(
                            iops=3000,
                            mode="USER_PROVISIONED"
                        ),
                        root_volume_configuration=fsx.OpenZfsFileSystemRootVolumeConfigurationArgs(
                            data_compression_type="LZ4",
                            record_size_kib=128,
                        ),
                        weekly_maintenance_start_time="2:00:00"
                    ),

Output of pulumi about

CLI
Version 3.94.2
Go Version go1.21.4
Go Compiler gc

Plugins
NAME VERSION
aws 6.13.0
kubernetes 4.5.4

Host
OS darwin
Version 14.1
Arch arm64

This project is written in python: executable='/Library/Frameworks/Python.framework/Versions/3.11/bin/python3' version='3.11.5'

Backend
Name << REDACTED >>
URL s3://<< REDACTED >>
User xxxxxxxx
Organizations xxxxxxxx
Token type personal

Dependencies:
NAME VERSION
@pulumi/aws 6.13.0
@pulumi/pulumi 3.94.2

Additional context

Passing a list instead of a string result in a type error.
Passing only single subnet to the subnetIds resulted in another error/;

  aws:fsx:OpenZfsFileSystem (fsxOpenZfs):
    error: 1 error occurred:
        * creating FSx for OpenZFS File System: BadRequest: Exactly 2 subnet IDs are required for MULTI_AZ_1.

Contributing

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[iwahbe]

Hi @shmulikah. Thanks for reporting this. I'm sorry you're hitting this error. We will try to get a fix out soon.

---

This is caused by enforcing a maxItemsOne: true field here:

https://github.com/pulumi/pulumi-aws/blob/08401e22ddaab298c9006c17aabb605fcaa87d0e/provider/cmd/pulumi-resource-aws/bridge-metadata.json#L10794-L10797

I see two options for a fix:

1. Remove the maxItemsOne: true. This would fix the problem simply, but create a breaking change for all users of this field.
2. Patch this field to split on , if present, making "subnet-xxxxxxxxxxxxxxxxx,subnet-xxxxxxxxxxxxxxxxx" a valid input.

[mikhailshilkov]

@iwahbe Do you know why we have maxItemsOne: true on it? I don't see a manual annotation in resources.go, so it must be a bridge logic that goes wrong?

[mikhailshilkov]

Ah, this was removed upstream in hashicorp/terraform-provider-aws@dba62f6 and we are keeping the backwards compatibility until the next major version by default

[pulumi-bot]

This issue has been addressed in PR #4095 and shipped in release v6.42.0.