Story #9502: [EPIC] Contrainer Signing and Verification
As a user, my image signature JSON payload is validated
Ticket moved to GitHub: "pulp/pulp_container/512":https://github.com/pulp/pulp_container/issues/512
JSON provided with signature needs to adhere to the format described in the containers/images docs.
Proposed solution: use jsonschema to define format and validate against it. See an example in the migration plugin.