// errors if the requested configmap does not exist in the given namespace
	if err != nil {
		return nil, fmt.Errorf("configmap %s was not found in namespace %s: %v", istioCM, istioNamespace, err)
	}
	// fill some fields before applying the yaml to prevent errors later
	meshConfig := &meshconfig.MeshConfig{
		DefaultConfig: &meshconfig.ProxyConfig{
			ProxyMetadata: map[string]string{},
		},
	}