fix: check if record already exists

cli/domain/create.go

@@ -100,6 +100,19 @@ Which means you can then deploy an app against "myapp.foo.com" successfully.
 			record.Priority = priority
 		}
 
+		records, err := provider.GetRecords(c.Context, zone)
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
+		for _, existingRecord := range records {
+			if existingRecord.Type == record.Type &&
+				existingRecord.Name == record.Name &&
+				existingRecord.Value == record.Value {
+				logrus.Fatal("provider library reports that this record already exists?")
+			}
+		}
+
 		createdRecords, err := provider.SetRecords(
 			c.Context,
 			zone,
@@ -128,9 +141,10 @@ Which means you can then deploy an app against "myapp.foo.com" successfully.
 			strconv.Itoa(createdRecord.Priority),
 		})
 
-		table.SetCaption(true, "record created")
 		table.Render()
 
+		logrus.Info("record created")
+
 		return nil
 	},
 }