A simple overview of an Istio service-mesh architecture always starts with describing the control-plane and data-plane. From Istio’s documentation: Istio ArchitectureIt is important to understand that the sidecar injection into the application pods happens automatically, though manual injection is also possible. Traffic is directed from the application services to and from these sidecars without developers needing to worry about it. Once the applications are connected to the Istio service m...