[Feature Request] Add data source to list available machine types

[Manisha15]

Problem description

I'm implementing a STACKIT compute resource integration for Foreman via foreman_opentofu. Foreman needs to discover all available machine types and present them to the user when configuring and provisioning hosts.

Currently, there is no data source that returns the complete list of available machine types.

Proposed solution

Add a stackit_machine_types data source that returns all available machine types.

data "stackit_machine_types" "available" {
  project_id = var.project_id
}

output "machine_types" {
  value = data.stackit_machine_types.available.machine_types
}

Alternative solutions (optional)

The machine types could be retrieved externally via the STACKIT API/CLI, but this requires additional logic outside Terraform/OpenTofu.

Additional information

Other compute resources supported by Foreman provide machine type/flavor enumeration, so this would make the STACKIT integration consistent with them.

[marceljk]

Hello @Manisha15,

Thanks for the feature request! I've added a ticket for this to our internal backlog.

Best regards,
Marcel from the STACKIT Developer Tools Team