Suggest changing the architectural picture of the istio document.

[eottabom]

I want the picture for Pilot+Citadel+Galley to be removed from the architecture of the Istio document.

This seems to cause confusion rather.

Up until the version of isio 1.4, the isiod consisted of pilot, mixer, Citadel, and Galley (each Pod)

Beginning with version of isio 1.5, it was integrated into a single module called isiod (run with isiod Pod)
https://istio.io/latest/news/releases/1.5.x/announcing-1.5/
https://istio.io/latest/blog/2020/istiod/

Mixer is defined from 1.5 (completely disappeared from 1.7), and the role of Mixer is

It was used to combine with logging, metric APIs, and APIs for billing, but it was removed for performance reasons,

integrated into Envoy.
(Redefining extensibility in proxies - introducing WebAssembly to Envoy and Istio)

Citadel is a module that performs security-related functions and provides access to services such as services and services (Security)

Galley provides the configuration management services of isio (like changing to a structure applicable to kubenets.yaml → isio)
→ Currently, Citadel, Galley say only some code is built-in.

istio/istio#51359 (reply in thread)

[howardjohn]

cc @craigbox has been looking into this

[craigbox]

#15233 addresses this and is likely to be started in a couple weeks from now.