Singleton resource

Terraform Providers Plugin Development
1

I have a API which has GET,PUT,DELETE operations for a singleton resource The delete in this case is a ‘reset’ of the configuration.

Is it possible to define a resource as being a singleton for a given instance of a provider? To the extent that if you define two of the same resource for a given instance of a provider it would error or at least warn?

2

It is, unfortunately, not possible, given Terraform’s protocol. In the past, we have documented these kinds of situations as the best we can do.