Fix compose volume creation and check this in volume e2e test

Signed-off-by: Guillaume Tardif <guillaume.tardif@gmail.com>

local/compose.go

@@ -1086,7 +1086,9 @@ func (s *composeService) ensureVolume(ctx context.Context, volume types.VolumeCo
 	// TODO could identify volume by label vs name
 	_, err := s.apiClient.VolumeInspect(ctx, volume.Name)
 	if err != nil {
-		if errdefs.IsNotFound(err) {
+		if !errdefs.IsNotFound(err) {
+			return err
+		}
 		eventName := fmt.Sprintf("Volume %q", volume.Name)
 		w := progress.ContextWriter(ctx)
 		w.Event(progress.CreatingEvent(eventName))
@@ -1103,7 +1105,5 @@ func (s *composeService) ensureVolume(ctx context.Context, volume types.VolumeCo
 		}
 		w.Event(progress.CreatedEvent(eventName))
 	}
-		return err
-	}
 	return nil
 }

local/e2e/volume-test/docker-compose.yml

@@ -5,3 +5,13 @@ services:
       - ./static:/usr/share/nginx/html
     ports:
       - 8090:80
+
+  nginx2:
+    build: nginx-build
+    volumes:
+      - staticVol:/usr/share/nginx/html
+    ports:
+      - 9090:80
+
+volumes:
+  staticVol: