残高に対するメトリクスを追加 (#3)

client.go

@@ -321,3 +321,25 @@ func (cc *ConohaClient) DatabaseInfo(databaseID string) (*Database, error) {
 
 	return &uResp.Database, nil
 }
+
+//JSON受取用
+type BillingPaymentSummaryResponce struct {
+	PaymentSummary PaymentSummary `json:"payment_summary"`
+}
+
+type PaymentSummary struct {
+	Deposit int `json:"total_deposit_amount"`
+}
+
+//入金サマリーの取得
+func (cc *ConohaClient) BillingPaymentSummary() (*PaymentSummary, error) {
+	resp, _, err := cc.get(cc.accountEndpoint + "/payment-summary")
+	if err != nil {
+		return nil, err
+	}
+	var uResp BillingPaymentSummaryResponce
+	if err := json.Unmarshal(resp, &uResp); err != nil {
+		return nil, err
+	}
+	return &uResp.PaymentSummary, nil
+}

exporter.go

@@ -38,6 +38,7 @@ func NewConohaCollector(client *ConohaClient) (*ConohaCollector, error) {
 			prometheus.NewDesc("database_usage", "Usage of Database (GB)", []string{"database"}, nil),
 			prometheus.NewDesc("database_quota", "Database Quota (GB)", []string{"service"}, nil),
 			prometheus.NewDesc("database_total_usage", "Total Database Usage (GB)", []string{"service"}, nil),
+			prometheus.NewDesc("total_deposit_amount", "Total Deposit Amount", []string{}, nil),
 		},
 		[]prometheus.Metric{},
 		databases,
@@ -93,6 +94,12 @@ func (cc *ConohaCollector) AutoUpdate() {
 			metrics = append(metrics, prometheus.MustNewConstMetric(cc.describes[7], prometheus.GaugeValue, float64(quota.TotalUsage), serviceID))
 		}
 
+		deposit, err := cc.BillingPaymentSummary()
+		if err != nil {
+			log.Fatal(err)
+		}
+		metrics = append(metrics, prometheus.MustNewConstMetric(cc.describes[8], prometheus.GaugeValue, float64(deposit.Deposit)))
+
 		// メトリクスデータ更新
 		cc.Lock()
 		cc.metrics = metrics