// The actual name can be different - use getMeshConfigMapName
	defaultMeshConfigMapName = "istio"
	// configMapKey should match the expected MeshConfig file name
	configMapKey = "mesh"
)

// initMeshConfiguration creates the mesh in the pilotConfig from the input arguments.
// Original/default behavior:
// - use the mounted file, if it exists.
// - use istio-REVISION if k8s is enabled
// - fallback to default
//