"These checks are extremely expensive, so this should be used only for testing, not production.",
	).Get()

	SharedMeshConfig = env.Register("SHARED_MESH_CONFIG", "",
		"Additional config map to load for shared MeshConfig settings. The standard mesh config will take precedence.").Get()

	MultiRootMesh = env.Register("ISTIO_MULTIROOT_MESH", false,

	// This field should only be set when DeployIstio is false
	EgressGatewayIstioLabel string

	// SharedMeshConfigName is the name of the user's local ConfigMap to be patched, which the user sets as the SHARED_MESH_CONFIG pilot env variable
	// upon installing Istio.
	// This field should only be set when DeployIstio is false.
	SharedMeshConfigName string
}

func (c *Config) OverridesYAML(s *resource.Settings) string {

#### Mesh Config

Mesh Config controller is a pretty simple controller, reading from `ConfigMap`(s) (multiple if `SHARED_MESH_CONFIG` is used), processing and merging these into a the typed `MeshConfig`. It then exposes this over a simple `mesh.Watcher`, which just exposes a way to access the current `MeshConfig` and get notified when it changes.

#### Ingress