Beispiel #1
0
func runLogout(dockerCli *command.DockerCli, serverAddress string) error {
	ctx := context.Background()
	var isDefaultRegistry bool

	if serverAddress == "" {
		serverAddress = dockerCli.ElectAuthServer(ctx)
		isDefaultRegistry = true
	}

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

	// check if we're logged in based on the records in the config file
	// which means it couldn't have user/pass cause they may be in the creds store
	for _, s := range regsToTry {
		if _, ok := dockerCli.ConfigFile().AuthConfigs[s]; ok {
			loggedIn = true
			regsToLogout = append(regsToLogout, s)
		}
	}

	if !loggedIn {
		fmt.Fprintf(dockerCli.Out(), "Not logged in to %s\n", hostnameAddress)
		return nil
	}

	fmt.Fprintf(dockerCli.Out(), "Removing login credentials for %s\n", hostnameAddress)
	for _, r := range regsToLogout {
		if err := command.EraseCredentials(dockerCli.ConfigFile(), r); err != nil {
			fmt.Fprintf(dockerCli.Err(), "WARNING: could not erase credentials: %v\n", err)
		}
	}

	return nil
}