How do I complete connections in apprunner?

As per the documentation, you should be able to create the connection initially via aws_apprunner_connection, but need to complete the process via the console, and it sounds like multiple people including yourself are reporting that this is not functioning as intended. I have attached links to these reports below (1)(2)(3).

As a workaround, you may need to create the connection via the console, and you can then either supply the ARN to aws_apprunner_service, or you can import the connection to aws_apprunner_connection.

(1) https://github.com/hashicorp/terraform-provider-aws/issues/19825

(2) https://github.com/hashicorp/terraform-provider-aws/issues/19884

(3) https://github.com/hashicorp/terraform-provider-aws/issues/22496