Adjust instanceID for objectStorage to ensure uniqueness

the instanceID must be unique in a single SO. Since objectstorage is
billed on multiple metrics (storage, requests and trafficout) we need to
adjust the instanceID to ensure it's unique for all metrics.

Signed-off-by: Nicolas Bigler <nicolas.bigler@vshn.ch>

pkg/cloudscale/objectstorage.go

@@ -137,7 +137,7 @@ func (o *ObjectStorage) createOdooRecord(bucketMetricsData cloudscale.BucketMetr
 	return []odoo.OdooMeteredBillingRecord{
 		{
 			ProductID:            productIdStorage,
-			InstanceID:           instanceId,
+			InstanceID:           instanceId + "/storage",
 			ItemDescription:      bucketMetricsData.Subject.BucketName,
 			ItemGroupDescription: itemGroup,
 			SalesOrder:           salesOrder,
@@ -150,7 +150,7 @@ func (o *ObjectStorage) createOdooRecord(bucketMetricsData cloudscale.BucketMetr
 		},
 		{
 			ProductID:            productIdTrafficOut,
-			InstanceID:           instanceId,
+			InstanceID:           instanceId + "/trafficout",
 			ItemDescription:      bucketMetricsData.Subject.BucketName,
 			ItemGroupDescription: itemGroup,
 			SalesOrder:           salesOrder,
@@ -163,7 +163,7 @@ func (o *ObjectStorage) createOdooRecord(bucketMetricsData cloudscale.BucketMetr
 		},
 		{
 			ProductID:            productIdQueryRequests,
-			InstanceID:           instanceId,
+			InstanceID:           instanceId + "/requests",
 			ItemDescription:      bucketMetricsData.Subject.BucketName,
 			ItemGroupDescription: itemGroup,
 			SalesOrder:           salesOrder,

pkg/exoscale/objectstorage.go

@@ -126,7 +126,7 @@ func (o *ObjectStorage) getOdooMeteredBillingRecords(ctx context.Context, sosBuc
 
 			o := odoo.OdooMeteredBillingRecord{
 				ProductID:            productIdStorage,
-				InstanceID:           instanceId,
+				InstanceID:           instanceId + "/storage",
 				ItemDescription:      bucketDetail.BucketName,
 				ItemGroupDescription: itemGroup,
 				SalesOrder:           salesOrder,