cmd

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• Variables

Variables

var RootCmd = &cobra.Command{
	Use: "cache warmer",
	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
		if err := logging.Configure(logLevel, logFormat, logTimestamp); err != nil {
			return err
		}

		if val, ok := os.LookupEnv("KANIKO_REGISTRY_MAP"); ok {
			err := opts.RegistryMaps.Set(val)
			if err != nil {
				return err
			}
		}

		for _, target := range opts.RegistryMirrors {
			err := opts.RegistryMaps.Set(fmt.Sprintf("%s=%s", name.DefaultRegistry, target))
			if err != nil {
				return err
			}
		}

		if len(opts.RegistryMaps) > 0 {
			for src, dsts := range opts.RegistryMaps {
				logrus.Debugf("registry-map remaps %s to %s.", src, strings.Join(dsts, ", "))
			}
		}

		if len(opts.Images) == 0 && opts.DockerfilePath == "" {
			return errors.New("you must select at least one image to cache or a dockerfilepath to parse")
		}

		if opts.DockerfilePath != "" {
			if err := validateDockerfilePath(); err != nil {
				return fmt.Errorf("error validating dockerfile path: %w", err)
			}
		}

		return nil
	},
	Run: func(cmd *cobra.Command, args []string) {
		if _, err := os.Stat(opts.CacheDir); os.IsNotExist(err) {
			err = os.MkdirAll(opts.CacheDir, 0o755)
			if err != nil {
				exit(fmt.Errorf("failed to create cache directory: %w", err))
			}
		}
		if err := warmer.WarmCache(opts); err != nil {
			exit(fmt.Errorf("failed warming cache: %w", err))
		}
	},
}