Schema Subject Promotion Evaluation

[MSeal]

Goals

1. Basic SR CRUD
2. Start a new schema based on an existing one
3. Does a dry run of produce/consume against existing topic messages with a new / proposed schemaversion successfully parse each message
4. If there are failed parses of messages they should be clearly be bubbled up
5. Verify compatibility of new schema versions
6. Smart parsing of schema file extension for richer evaluation of elements of a schema?

Non-Goals

1. Use an existing language assistant for the schema language format (e.g. not recreating Avro parsing)
2. Assist with migration of applications for use of new schema
3. Re-implementing schema compatibility logic

Background

TODO More... we want developer to comfortably use schemas in their work.

Proposal

Verify compatibility of new schema versions
Either help pushing a subject locally to confirm compatibility or do some static analysis to get the same outcome. For static analysis we could import schema registry and expose the logic for compatibility. To determine, what extent should we manipulate a local SR on behalf of the user.