return err
	}

	tag, err := GetTagVersion(operatorVer.OperatorVersionString)
	if err != nil {
		return fmt.Errorf("fetch Istio version: %v", err)
	}

	// return warning if current date is near the EOL date
	if operatorVer.IsEOL() {
		warnMarker := color.New(color.FgYellow).Add(color.Italic).Sprint("WARNING:")

## Certificate Rotation

The agent also handles rotating certificates near expiration. It does so by triggering a callback from the `SecretManager` to the SDS server
when a certificate is near expiration (configurable by `SECRET_GRACE_PERIOD_RATIO`, defaulting to half of the expiration). If the SDS server