istioctl analyze samples/bookinfo/networking/bookinfo-gateway.yaml
`,
		Args: cobra.NoArgs,
		RunE: func(c *cobra.Command, _ []string) error {
			istioNamespace := ctx.IstioNamespace()
			defaultNamespace := ctx.NamespaceOrDefault("")
			return validateFiles(&istioNamespace, defaultNamespace, filenames, c.OutOrStderr())
		},
	}

	flags := c.PersistentFlags()