add get by name func.

internal/room/containers.go

@@ -74,11 +74,8 @@ func (manager *RoomManagerCtx) listContainers() ([]dockerTypes.Container, error)
 	return result, nil
 }
 
-func (manager *RoomManagerCtx) containerInfo(id string) (*dockerTypes.Container, error) {
-	args := filters.NewArgs(
-		filters.Arg("id", id),
-		filters.Arg("label", "m1k1o.neko_rooms.instance"),
-	)
+func (manager *RoomManagerCtx) containerFilter(args filters.Args) (*dockerTypes.Container, error) {
+	args.Add("label", "m1k1o.neko_rooms.instance")
 
 	containers, err := manager.client.ContainerList(context.Background(), dockerTypes.ContainerListOptions{
 		All:     true,
@@ -103,6 +100,18 @@ func (manager *RoomManagerCtx) containerInfo(id string) (*dockerTypes.Container,
 	return &container, nil
 }
 
+func (manager *RoomManagerCtx) containerById(id string) (*dockerTypes.Container, error) {
+	return manager.containerFilter(filters.NewArgs(
+		filters.Arg("id", id),
+	))
+}
+
+func (manager *RoomManagerCtx) containerByName(name string) (*dockerTypes.Container, error) {
+	return manager.containerFilter(filters.NewArgs(
+		filters.Arg("name", manager.config.InstanceName+"-"+name),
+	))
+}
+
 func (manager *RoomManagerCtx) inspectContainer(id string) (*dockerTypes.ContainerJSON, error) {
 	container, err := manager.client.ContainerInspect(context.Background(), id)
 	if err != nil {

internal/room/manager.go

@@ -73,6 +73,15 @@ func (manager *RoomManagerCtx) List() ([]types.RoomEntry, error) {
 	return result, nil
 }
 
+func (manager *RoomManagerCtx) FindByName(name string) (*types.RoomEntry, error) {
+	container, err := manager.containerByName(name)
+	if err != nil {
+		return nil, err
+	}
+
+	return manager.containerToEntry(*container)
+}
+
 func (manager *RoomManagerCtx) Create(settings types.RoomSettings) (string, error) {
 	if in, _ := utils.ArrayIn(settings.NekoImage, manager.config.NekoImages); !in {
 		return "", fmt.Errorf("invalid neko image")
@@ -220,7 +229,7 @@ func (manager *RoomManagerCtx) Create(settings types.RoomSettings) (string, erro
 }
 
 func (manager *RoomManagerCtx) GetEntry(id string) (*types.RoomEntry, error) {
-	container, err := manager.containerInfo(id)
+	container, err := manager.containerById(id)
 	if err != nil {
 		return nil, err
 	}

internal/types/room.go

@@ -163,6 +163,7 @@ type RoomMember struct {
 type RoomManager interface {
 	Config() RoomsConfig
 	List() ([]RoomEntry, error)
+	FindByName(name string) (*RoomEntry, error)
 
 	Create(settings RoomSettings) (string, error)
 	GetEntry(id string) (*RoomEntry, error)