add Mode to Service entity

cmd/uncloud/service/inspect.go

@@ -60,6 +60,7 @@ func inspect(ctx context.Context, uncli *client.CLI, opts *inspectOptions) error
 
 	fmt.Printf("ID:    %s\n", svc.ID)
 	fmt.Printf("Name:  %s\n", svc.Name)
+	fmt.Printf("Mode:  %s\n", svc.Mode)
 	fmt.Println()
 
 	// Print the list of containers in a table format.

internal/machine/api/pb/machine.pb.go

@@ -366,7 +366,8 @@ type Service struct {
 
 	Id         string               `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 	Name       string               `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
-	Containers []*Service_Container `protobuf:"bytes,3,rep,name=containers,proto3" json:"containers,omitempty"`
+	Mode       string               `protobuf:"bytes,3,opt,name=mode,proto3" json:"mode,omitempty"`
+	Containers []*Service_Container `protobuf:"bytes,4,rep,name=containers,proto3" json:"containers,omitempty"`
 }
 
 func (x *Service) Reset() {
@@ -415,6 +416,13 @@ func (x *Service) GetName() string {
 	return ""
 }
 
+func (x *Service) GetMode() string {
+	if x != nil {
+		return x.Mode
+	}
+	return ""
+}
+
 func (x *Service) GetContainers() []*Service_Container {
 	if x != nil {
 		return x.Containers
@@ -522,6 +530,7 @@ type Service_Container struct {
 	unknownFields protoimpl.UnknownFields
 
 	MachineId string `protobuf:"bytes,1,opt,name=machine_id,json=machineId,proto3" json:"machine_id,omitempty"`
+	// JSON encoded Docker types.Container.
 	Container []byte `protobuf:"bytes,2,opt,name=container,proto3" json:"container,omitempty"`
 }
 
@@ -618,49 +627,50 @@ var file_internal_machine_api_pb_machine_proto_rawDesc = []byte{
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 }
 
 var (

internal/machine/api/pb/machine.proto

@@ -49,13 +49,15 @@ message TokenResponse {
 message Service {
   string id = 1;
   string name = 2;
+  string mode = 3;
 
   message Container {
     string machine_id = 1;
+    // JSON encoded Docker types.Container.
     bytes container = 2;
   }
 
-  repeated Container containers = 3;
+  repeated Container containers = 4;
 }
 
 message InspectServiceRequest {

internal/machine/machine.go

@@ -703,6 +703,8 @@ func (m *Machine) InspectService(
 	if len(records) == 0 {
 		return nil, status.Error(codes.NotFound, "service not found")
 	}
+	// TODO: handle multiple services with the same name but different IDs. This can happen when two services
+	//  with the same name are created concurrently on different machines.
 
 	containers := make([]*pb.Service_Container, len(records))
 	for i, r := range records {
@@ -719,6 +721,7 @@ func (m *Machine) InspectService(
 	svc := &pb.Service{
 		Id:         records[0].Container.ServiceID(),
 		Name:       records[0].Container.ServiceName(),
+		Mode:       records[0].Container.ServiceMode(),
 		Containers: containers,
 	}
 	return &pb.InspectServiceResponse{Service: svc}, nil

internal/service/container.go

@@ -8,6 +8,7 @@ import (
 const (
 	LabelServiceID   = "uncloud.service.id"
 	LabelServiceName = "uncloud.service.name"
+	LabelServiceMode = "uncloud.service.mode"
 )
 
 type Container struct {
@@ -24,6 +25,11 @@ func (c *Container) ServiceName() string {
 	return c.Labels[LabelServiceName]
 }
 
+// ServiceMode returns the replication mode of the service that the container is part of.
+func (c *Container) ServiceMode() string {
+	return c.Labels[LabelServiceMode]
+}
+
 // runningStatusRegex matches the status string of a running container.
 // - "Up 3 minutes (healthy)" -> groups: ["Up 3 minutes (healthy)", "healthy"]
 // - "Up 5 seconds" -> groups: ["Up 5 seconds", ""]

internal/service/service.go

@@ -14,6 +14,7 @@ const (
 type Service struct {
 	ID         string
 	Name       string
+	Mode       string
 	Containers []MachineContainer
 }
 
@@ -35,6 +36,7 @@ func FromProto(s *pb.Service) (Service, error) {
 	return Service{
 		ID:         s.Id,
 		Name:       s.Name,
+		Mode:       s.Mode,
 		Containers: containers,
 	}, nil
 }