[API] Implement Release channels (#3135)

* implement release channels

Signed-off-by: whitneygriffith <[email protected]>

* implement release channels without multiple crds

Signed-off-by: whitneygriffith <[email protected]>

---------

Signed-off-by: whitneygriffith <[email protected]>

Author: whitneygriffith

extensions/v1alpha1/wasm.pb.go

@@ -221,6 +221,7 @@ option go_package="istio.io/api/extensions/v1alpha1";
 // +cue-gen:WasmPlugin:subresource:status
 // +cue-gen:WasmPlugin:spec:required
 // +cue-gen:WasmPlugin:scope:Namespaced
+// +cue-gen:WasmPlugin:releaseChannel:extended
 // +cue-gen:WasmPlugin:resource:categories=istio-io,extensions-istio-io
 // +cue-gen:WasmPlugin:preserveUnknownFields:pluginConfig
 // +cue-gen:WasmPlugin:printerColumn:name=Age,type=date,JSONPath=.metadata.creationTimestamp,description="CreationTimestamp is a timestamp

extensions/v1alpha1/wasm.proto

@@ -410,6 +410,7 @@ option go_package = "istio.io/api/networking/v1alpha3";
 // +cue-gen:EnvoyFilter:labels:app=istio-pilot,chart=istio,heritage=Tiller,release=istio
 // +cue-gen:EnvoyFilter:subresource:status
 // +cue-gen:EnvoyFilter:scope:Namespaced
+// +cue-gen:EnvoyFilter:releaseChannel:extended
 // +cue-gen:EnvoyFilter:resource:categories=istio-io,networking-istio-io
 // +cue-gen:EnvoyFilter:preserveUnknownFields:configPatches.[].patch.value
 // -->

networking/v1alpha3/envoy_filter.pb.go

@@ -0,0 +1,10 @@
+apiVersion: release-notes/v2
+kind: feature
+area: installation
+
+issue: 
+  - https://github.com/istio/enhancements/issues/173 
+
+releaseNotes:
+  - |
+    **Added** the `releaseChannel:extended` flag to non-GA features and APIs.