Artifacts for Node Interfaces

The TOSCA standard includes the definition of lifecycle operations which may be performed on nodes or relationships. Such operation definitions are grouped into TOSCA interface definitions. Node templates may include such interfaces.

A common pattern for servers to expose operations is via a RESTful API. The contract between a client and a server using a RESTful API is often described using common file format, either swagger or its successor OpenAPI.

When a node template relates to a node which implements a REST API it may be desirable to supply the relevant OpenAPI file as an artifact.

With the current grammar an artefact can be supplied with a node template and also with an interface operation. However while OpenAPI describes the operation of the whole interface, TOSCA does not allow an artefact to be supplied at the level of node:interface.

Would it be possible to add keyname artefact to the definition of Interface Assignment?

Paul Jordan
OSS Specialist
BT Technology | Tel +44 (0) 3316252643 | paul.m.jordan@bt.com

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