Envoy is an extremely exciting project. I've been following it closely since OSS inception and am thrilled to see the upcoming deep integration with the Kubernetes project. Such a natural and complimentary fit!
With flexibility as both a side car and host proxy network call fabric for polyglot distributed services, I see Envoy as a kind of modern ESB for the reincarnation of SOA we are seeing in the microservices movement. Congrats to the awesome contributors from Lyft/IBM/Google and others!