func providerConfigure(d *schema.ResourceData) (interface{}, error) {
	var err error
	client := atlas.DefaultClient()
	if v := d.Get("address").(string); v != "" {
		client, err = atlas.NewClient(v)
		if err != nil {
			return nil, err
		}
	}
	client.DefaultHeader.Set(terraform.VersionHeader, terraform.VersionString())
	client.Token = d.Get("token").(string)

	return client, nil
}

		for _, id := range c.AllowedAccountIds {
			if id == accountId {
				return nil
			}
		}
		return fmt.Errorf("Account ID not allowed (%s)", accountId)
	}

	return nil
}

// addTerraformVersionToUserAgent is a named handler that will add Terraform's
// version information to requests made by the AWS SDK.
var addTerraformVersionToUserAgent = request.NamedHandler{
	Name: "terraform.TerraformVersionUserAgentHandler",
	Fn: request.MakeAddToUserAgentHandler(
		"terraform", terraform.VersionString()),
}

type awsLogger struct{}

func (l awsLogger) Log(args ...interface{}) {
	tokens := make([]string, 0, len(args))
	for _, arg := range args {
		if token, ok := arg.(string); ok {
			tokens = append(tokens, token)
		}
	}
	log.Printf("[DEBUG] [aws-sdk-go] %s", strings.Join(tokens, " "))
}

			if id == accountId {
				return nil
			}
		}
		return fmt.Errorf("Account ID not allowed (%s)", accountId)
	}

	return nil
}

// addTerraformVersionToUserAgent is a named handler that will add Terraform's
// version information to requests made by the AWS SDK.
var addTerraformVersionToUserAgent = request.NamedHandler{
	Name: "terraform.TerraformVersionUserAgentHandler",
	Fn: request.MakeAddToUserAgentHandler(
		"APN/1.0 HashiCorp/1.0 Terraform", terraform.VersionString()),
}

var debugAuthFailure = request.NamedHandler{
	Name: "terraform.AuthFailureAdditionalDebugHandler",
	Fn: func(req *request.Request) {
		if isAWSErr(req.Error, "AuthFailure", "AWS was not able to validate the provided access credentials") {
			log.Printf("[INFO] Additional AuthFailure Debugging Context")
			log.Printf("[INFO] Current system UTC time: %s", time.Now().UTC())
			log.Printf("[INFO] Request object: %s", spew.Sdump(req))
		}
	},
}

type awsLogger struct{}

func (c *Config) loadAndValidate() error {
	var account accountFile
	clientScopes := []string{
		"https://www.googleapis.com/auth/compute",
		"https://www.googleapis.com/auth/cloud-platform",
		"https://www.googleapis.com/auth/ndev.clouddns.readwrite",
		"https://www.googleapis.com/auth/devstorage.full_control",
	}

	var client *http.Client

	if c.Credentials != "" {
		contents, _, err := pathorcontents.Read(c.Credentials)
		if err != nil {
			return fmt.Errorf("Error loading credentials: %s", err)
		}

		// Assume account_file is a JSON string
		if err := parseJSON(&account, contents); err != nil {
			return fmt.Errorf("Error parsing credentials '%s': %s", contents, err)
		}

		// Get the token for use in our requests
		log.Printf("[INFO] Requesting Google token...")
		log.Printf("[INFO]   -- Email: %s", account.ClientEmail)
		log.Printf("[INFO]   -- Scopes: %s", clientScopes)
		log.Printf("[INFO]   -- Private Key Length: %d", len(account.PrivateKey))

		conf := jwt.Config{
			Email:      account.ClientEmail,
			PrivateKey: []byte(account.PrivateKey),
			Scopes:     clientScopes,
			TokenURL:   "https://accounts.google.com/o/oauth2/token",
		}

		// Initiate an http.Client. The following GET request will be
		// authorized and authenticated on the behalf of
		// your service account.
		client = conf.Client(oauth2.NoContext)

	} else {
		log.Printf("[INFO] Authenticating using DefaultClient")
		err := error(nil)
		client, err = google.DefaultClient(oauth2.NoContext, clientScopes...)
		if err != nil {
			return err
		}
	}

	versionString := terraform.VersionString()
	userAgent := fmt.Sprintf(
		"(%s %s) Terraform/%s", runtime.GOOS, runtime.GOARCH, versionString)

	var err error

	log.Printf("[INFO] Instantiating GCE client...")
	c.clientCompute, err = compute.New(client)
	if err != nil {
		return err
	}
	c.clientCompute.UserAgent = userAgent

	log.Printf("[INFO] Instantiating GKE client...")
	c.clientContainer, err = container.New(client)
	if err != nil {
		return err
	}
	c.clientContainer.UserAgent = userAgent

	log.Printf("[INFO] Instantiating Google Cloud DNS client...")
	c.clientDns, err = dns.New(client)
	if err != nil {
		return err
	}
	c.clientDns.UserAgent = userAgent

	log.Printf("[INFO] Instantiating Google Storage Client...")
	c.clientStorage, err = storage.New(client)
	if err != nil {
		return err
	}
	c.clientStorage.UserAgent = userAgent

	log.Printf("[INFO] Instantiating Google SqlAdmin Client...")
	c.clientSqlAdmin, err = sqladmin.New(client)
	if err != nil {
		return err
	}
	c.clientSqlAdmin.UserAgent = userAgent

	log.Printf("[INFO] Instatiating Google Pubsub Client...")
	c.clientPubsub, err = pubsub.New(client)
	if err != nil {
		return err
	}
	c.clientPubsub.UserAgent = userAgent

	log.Printf("[INFO] Instatiating Google CloudResourceManager Client...")
	c.clientResourceManager, err = cloudresourcemanager.New(client)
	if err != nil {
//.........这里部分代码省略.........

func setUserAgent(client *autorest.Client) {
	version := terraform.VersionString()
	client.UserAgent = fmt.Sprintf("HashiCorp-Terraform-v%s", version)
}