solo-io / gloo

The Cloud-Native API Gateway and AI Gateway

https://docs.solo.io/

Apache License 2.0

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extensibility for KRT and custom backend types #10272

Closed stevenctl closed 5 days ago

stevenctl commented 1 week ago

this is built on top of #10251

Description

Allows extensions to our core KRT collections, adding arbitrary Upstreams or Endpoints via KRTExtension.

Because these extensions could introduce new backend types, we also need a way to do custom backendRefs.

Code changes

Add KRTExtensions interface to allow adding arbitrary new Upstreams or Endpoints
Move some shared code out of proxy_syncer into krtcollections to avoid cyclic imports.
Add BackendRefResolver extensions to GatewayQueries for backend resolution
Add BackendRefPlugins to translation to allow converting these custom backend types into Destinations
Make it so the Istio transportsocket sets SNI in a way that Istio expects to match.

Testing steps

TODO

solo-changelog-bot[bot] commented 1 week ago

Issues linked to changelog: https://github.com/solo-io/gloo/pull/10251