My company has an OpenAPI3 spec. We have a community supported Terraform provider that we are moving in-house soon.

I was wondering why there is no easy way to generate a Terraform provider from an OpenAPI spec?

There's no open issue in the generator project[0].

Some googling turned up a couple of projects[1],[2], but they only support Swagger; OpenAPI is the successor to Swagger. There is some progress on supporting OpenAPI[3]. I also found this provider, which is a thin wrapper around REST calls[4].

It's not discussed very much on the Terraform forum[5].

Either I'm missing the need for this or underestimating the difficulty.

0: https://github.com/OpenAPITools/openapi-generator/issues?q=is%3Aissue+is%3Aopen+terraform

1: https://www.logicmonitor.com/blog/how-to-write-a-custom-terraform-provider-automatically-with-openapi

2: https://github.com/dikhan/terraform-provider-openapi

3: https://github.com/dikhan/terraform-provider-openapi/pull/320

4: https://github.com/Mastercard/terraform-provider-restapi

5: https://discuss.hashicorp.com/t/sdk-provider-development-anyone-ever-used-code-generation-or-other-tools-to-simplify-their-provider-development/20301/2