Emissary-Ingress - v3.9.0

:tada: Emissary Ingress 3.9.0 :tada:

Emissary Ingress is an open source, Kubernetes-native microservices API gateway built on the Envoy Proxy.

Upgrade Emissary - https://www.getambassador.io/reference/upgrading.html
View changelog - https://github.com/emissary-ingress/emissary/blob/v3.9.0/CHANGELOG.md
Get started with Emissary on Kubernetes - https://www.getambassador.io/user-guide/getting-started

• Feature: This upgrades Emissary-ingress to be built on Envoy v1.27.2 which provides security,
  performance and feature enhancements. You can read more about them here: Envoy Proxy
  1.27.2 Release Notes

• Feature: By default, Emissary-ingress will return an UNAVAILABLE code when a request using gRPC
  is rate limited. The RateLimitService resource now exposes a new
  grpc.use_resource_exhausted_code field that when set to true, Emissary-ingress will return a
  RESOURCE_EXHAUSTED gRPC code instead. Thanks to Jerome
  Froelich for contributing this feature!

• Feature: Envoy runtime fields that were provided to mitigate the recent HTTP/2 rapid reset
  vulnerability can now be configured via the Module resource so the configuration will persist
  between restarts. This configuration is added to the Envoy bootstrap config, so restarting
  Emissary is necessary after changing these fields for the configuration to take effect.

• Change: APIExt would previously allow for TLS 1.0 connections. We have updated it to now only use
  a minimum TLS version of 1.3 to resolve security concerns.

• Change: - Update default image to Emissary-ingress v3.9.0.
  

• Bugfix: The APIExt server provides CRD conversion between the stored version v2 and the version
  watched for by Emissary-ingress v3alpha1. Since this component is required to operate
  Emissary-ingress, we have introduced an init container that will ensure it is available before
  starting. This will help address some of the intermittent issues seen during install and
  upgrades.