We need a new filter that will ultimately work the same way as the API Validator filter. This story is to create the filter, use the Swagger Request Validator library, and provide the most basic functionality possible. Further features will be developed in future stories.

This filter will be shipped in the regular filter bundle.

Story grooming: we are assuming that RBAC validation will come later. This filter will simply validate the things specified by the OpenAPI document. We are also assuming the delegation is not necessary at this time.

Original spike: REP‌-7123

Prototype filter: https://github.com/rackerlabs/repose/commits/REP-7123

Acceptance Criteria

• The OpenAPI validation filter exists and can validate requests.

  • The filter is configurable and supports:

    • Specifying an OpenAPI document (API definition)