Observability Glossary Content

1. Citadel

For more information see the Citadel definition in Istio Citadel Documentation.

2. Envoy

A proxy that Istio starts for each pod in the service mesh. For more information see the Envoy definition in Istio Envoy Documentation.

2.1. Envoy Health

A health check performed by Envoy proxies, for inbound and outbound traffic: see membership_healthy and membership_total from Envoy documentation.

3. Mixer

For more information see the Mixer definition in Istio Mixer Documentation.

4. Pilot

For more information see the Pilot definition in Istio Pilot Documentation.

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Figure 1. Kiali Graph