Merge pull request #568 from flatcar/tormath1/aws

aws: fix nil pointer exception

platform/api/aws/images.go

@@ -207,14 +207,23 @@ func (a *API) finishSnapshotTask(snapshotTaskID, imageName string) (*Snapshot, e
 			return false, "", err
 		}
 
+		if len(taskRes.ImportSnapshotTasks) == 0 {
+			plog.Debugf("no import snapshot tasks in progress")
+			return false, "", nil
+		}
+
 		details := taskRes.ImportSnapshotTasks[0].SnapshotTaskDetail
+		if details == nil {
+			plog.Debugf("no details on the import snapshot task")
+			return false, "", nil
+		}
 
 		// I dream of AWS specifying this as an enum shape, not string
 		switch *details.Status {
 		case "completed":
 			return true, *details.SnapshotId, nil
 		case "pending", "active":
-			plog.Debugf("waiting for import task: %v (%v): %v", *details.Status, *details.Progress, *details.StatusMessage)
+			plog.Debugf("waiting for import task")
 			return false, "", nil
 		case "cancelled", "cancelling":
 			return false, "", fmt.Errorf("import task cancelled")