Function runLogout

cli/command/registry/logout.go:44–89

(ctx context.Context, dockerCLI command.Cli, serverAddress string)

}

func runLogout(ctx context.Context, dockerCLI command.Cli, serverAddress string) error {
	maybePrintEnvAuthWarning(dockerCLI)

	var isDefaultRegistry bool

	if serverAddress == "" {
		serverAddress = registry.IndexServer
		isDefaultRegistry = true
	}

	var (
		regsToLogout    = []string{serverAddress}
		hostnameAddress = serverAddress
	)
	if !isDefaultRegistry {
		hostnameAddress = credentials.ConvertToHostname(serverAddress)
		// the tries below are kept for backward compatibility where a user could have
		// saved the registry in one of the following format.
		regsToLogout = append(regsToLogout, hostnameAddress, "http://"+hostnameAddress, "https://"+hostnameAddress)
	}

	if isDefaultRegistry {
		store := dockerCLI.ConfigFile().GetCredentialsStore(registry.IndexServer)
		if err := manager.NewManager(store).Logout(ctx); err != nil {
			_, _ = fmt.Fprintln(dockerCLI.Err(), "WARNING:", err)
		}
	}

	_, _ = fmt.Fprintln(dockerCLI.Out(), "Removing login credentials for", hostnameAddress)
	errs := make(map[string]error)
	for _, r := range regsToLogout {
		if err := dockerCLI.ConfigFile().GetCredentialsStore(r).Erase(r); err != nil {
			errs[r] = err
		}
	}

	// if at least one removal succeeded, report success. Otherwise report errors
	if len(errs) == len(regsToLogout) {
		_, _ = fmt.Fprintln(dockerCLI.Err(), "WARNING: could not erase credentials:")
		for k, v := range errs {
			_, _ = fmt.Fprintf(dockerCLI.Err(), "%s: %s\n", k, v)
		}
	}

	return nil
}