func NewWatcher()

in docker/watcher.go [123:157]

29 lines of code
5 McCabe index (conditional complexity)


func NewWatcher(log *logp.Logger, host string, tls *TLSConfig, storeShortID bool) (Watcher, error) {
	var httpClient *http.Client
	if tls != nil {
		options := tlsconfig.Options{
			CAFile:   tls.CA,
			CertFile: tls.Certificate,
			KeyFile:  tls.Key,
		}

		tlsc, err := tlsconfig.Client(options)
		if err != nil {
			return nil, err
		}

		httpClient = &http.Client{
			Transport: &http.Transport{
				TLSClientConfig: tlsc,
			},
		}
	}

	client, err := NewClient(host, httpClient, nil)
	if err != nil {
		return nil, err
	}

	// Extra check to confirm that Docker is available
	_, err = client.Info(context.Background())
	if err != nil {
		client.Close()
		return nil, err
	}

	return NewWatcherWithClient(log, client, 60*time.Second, storeShortID)
}