oauthConfig, err := adal.NewOAuthConfig(azure.PublicCloud.ActiveDirectoryEndpoint, conf.SPAuth.TenantID)
	if err != nil {
		return nil, err
	}
	spt, err := adal.NewServicePrincipalToken(*oauthConfig, conf.SPAuth.ClientID, conf.SPAuth.ClientSecret, azure.PublicCloud.ResourceIdentifiers.Storage)
	if err != nil {
		return nil, err
	}

	// Refresh obtains a fresh token
	err = spt.Refresh()