feat: show IMAGE column when listing services (uc ls) #13

cmd/uncloud/service/ls.go

@@ -60,19 +60,20 @@ func list(ctx context.Context, uncli *cli.CLI, contextName string) error {
 			return fmt.Errorf("write header: %w", err)
 		}
 	}
-	if _, err = fmt.Fprintln(tw, "NAME\tMODE\tREPLICAS\tENDPOINTS"); err != nil {
+	if _, err = fmt.Fprintln(tw, "NAME\tMODE\tREPLICAS\tIMAGE\tENDPOINTS"); err != nil {
 		return fmt.Errorf("write header: %w", err)
 	}
 	for _, s := range services {
-		endpointsSlice := s.Endpoints()
-		endpoints := strings.Join(endpointsSlice, ", ")
+		images := strings.Join(s.Images(), ", ")
+		endpoints := strings.Join(s.Endpoints(), ", ")
 
 		if haveDuplicateNames {
 			if _, err = fmt.Fprintf(tw, "%s\t", s.ID); err != nil {
 				return fmt.Errorf("write row: %w", err)
 			}
 		}
-		if _, err = fmt.Fprintf(tw, "%s\t%s\t%d\t%s\n", s.Name, s.Mode, len(s.Containers), endpoints); err != nil {
+		if _, err = fmt.Fprintf(tw, "%s\t%s\t%d\t%s\t%s\n",
+			s.Name, s.Mode, len(s.Containers), images, endpoints); err != nil {
 			return fmt.Errorf("write row: %w", err)
 		}
 	}

pkg/api/service.go

@@ -346,6 +346,15 @@ type MachineServiceContainer struct {
 	Container ServiceContainer
 }
 
+// Images returns a sorted list of unique images used by the service containers.
+func (s *Service) Images() []string {
+	images := make(map[string]struct{})
+	for _, ctr := range s.Containers {
+		images[ctr.Container.Config.Image] = struct{}{}
+	}
+	return slices.Sorted(maps.Keys(images))
+}
+
 // Endpoints returns the exposed HTTP and HTTPS endpoints of the service.
 func (s *Service) Endpoints() []string {
 	endpoints := make(map[string]struct{})