settings (--set meshConfig.enableTracing=true). See documentation for more info:` + url.IstioOperatorSpec
	// ManifestsFlagHelpStr is the command line description for --manifests
	ManifestsFlagHelpStr = `Specify a path to a directory of charts and profiles
(e.g. ~/Downloads/istio-` + baseVersion + `/manifests).
`
)

const (
	ChartsDeprecatedStr         = "Deprecated, use --manifests instead."

	"istio.io/istio/tools/bug-report/pkg/bugreport"
)

const (
	// Location to read istioctl defaults from
	defaultIstioctlConfig = "$HOME/.istioctl/config.yaml"
)

const (
	FlagCharts = "charts"
)

// ConfigAndEnvProcessing uses spf13/viper for overriding CLI parameters
func ConfigAndEnvProcessing() error {
	configPath := filepath.Dir(root.IstioConfig)
	baseName := filepath.Base(root.IstioConfig)

	registerStringParameter(constants.LogLevel, "warn", "Fallback value for log level in CNI config file, if not specified in helm template")

	// Not configurable in CNI helm charts
	registerStringParameter(constants.MountedCNINetDir, "/host/etc/cni/net.d", "Directory on the container where CNI networks are installed")
	registerStringParameter(constants.CNINetworkConfigFile, "", "CNI config template as a file")