Hands-On Microservices with Kubernetes

Examining the Istio footprint

Istio deploys a lot of stuff into the cluster, so let's review some of it. Mercifully, the Istio control plane is isolated in its own istio-system namespace, but CRDs are always cluster-wide and Istio doesn't skimp on those:

$ kubectl get crd -l k8s-app=istio -o custom-columns="NAME:.metadata.name"  NAME adapters.config.istio.io apikeys.config.istio.io attributemanifests.config.istio.io authorizations.config.istio.io bypasses.config.istio.io checknothings.config.istio.io circonuses.config.istio.io deniers.config.istio.io destinationrules.networking.istio.io edges.config.istio.io envoyfilters.networking.istio.io fluentds.config.istio.io gateways.networking.istio.io handlers.config.istio.io httpapispecbindings.config.istio.io ...