https://aws.amazon.com/tnbFAQ:
Q: What do I need to provide as inputs to use AWS TNB?Define
the individual network function (NF) resource requirements, such as
compute, storage, and databases, as network function descriptors (NFD)
in the Topology and Orchestration Specification for Cloud Applications
(TOSCA) format. Along with these requirements, provide the software
images of NFs from your independent software vendor (ISV) as pointers to
Amazon ECR images.
You then define the network services that
comprise your networks as network services descriptors (NSD) in TOSCA
format. NSDs can include one or many NFs. AWS TNB offers many ways for
you to provide NFDs and NSDs, including through the use of
industry-specific APIs and directly through the AWS TNB console.