Add Status endpoint with Clair configuration

Implement a status endpoint providing the current lister/detector in
the current instance of Clair.

api/v3/clairpb/clair.pb.go

@@ -21,6 +21,8 @@ It has these top-level messages:
 	PagedVulnerableAncestries
 	MarkNotificationAsReadRequest
 	MarkNotificationAsReadResponse
+	GetStatusRequest
+	GetStatusResponse
 */
 package clairpb
 
@@ -677,6 +679,39 @@ func (m *MarkNotificationAsReadResponse) String() string            { return pro
 func (*MarkNotificationAsReadResponse) ProtoMessage()               {}
 func (*MarkNotificationAsReadResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{12} }
 
+type GetStatusRequest struct {
+	Test string `protobuf:"bytes,1,opt,name=test" json:"test,omitempty"`
+}
+
+func (m *GetStatusRequest) Reset()                    { *m = GetStatusRequest{} }
+func (m *GetStatusRequest) String() string            { return proto.CompactTextString(m) }
+func (*GetStatusRequest) ProtoMessage()               {}
+func (*GetStatusRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{13} }
+
+func (m *GetStatusRequest) GetTest() string {
+	if m != nil {
+		return m.Test
+	}
+	return ""
+}
+
+type GetStatusResponse struct {
+	// The status of the current Clair instance.
+	Status *ClairStatus `protobuf:"bytes,1,opt,name=status" json:"status,omitempty"`
+}
+
+func (m *GetStatusResponse) Reset()                    { *m = GetStatusResponse{} }
+func (m *GetStatusResponse) String() string            { return proto.CompactTextString(m) }
+func (*GetStatusResponse) ProtoMessage()               {}
+func (*GetStatusResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{14} }
+
+func (m *GetStatusResponse) GetStatus() *ClairStatus {
+	if m != nil {
+		return m.Status
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterType((*Vulnerability)(nil), "coreos.clair.Vulnerability")
 	proto.RegisterType((*Feature)(nil), "coreos.clair.Feature")
@@ -695,6 +730,8 @@ func init() {
 	proto.RegisterType((*PagedVulnerableAncestries_IndexedAncestryName)(nil), "coreos.clair.PagedVulnerableAncestries.IndexedAncestryName")
 	proto.RegisterType((*MarkNotificationAsReadRequest)(nil), "coreos.clair.MarkNotificationAsReadRequest")
 	proto.RegisterType((*MarkNotificationAsReadResponse)(nil), "coreos.clair.MarkNotificationAsReadResponse")
+	proto.RegisterType((*GetStatusRequest)(nil), "coreos.clair.GetStatusRequest")
+	proto.RegisterType((*GetStatusResponse)(nil), "coreos.clair.GetStatusResponse")
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -907,83 +944,152 @@ var _NotificationService_serviceDesc = grpc.ServiceDesc{
 	Metadata: "api/v3/clairpb/clair.proto",
 }
 
+// Client API for StatusService service
+
+type StatusServiceClient interface {
+	// The RPC used to show the internal state of current Clair instance.
+	GetStatus(ctx context.Context, in *GetStatusRequest, opts ...grpc.CallOption) (*GetStatusResponse, error)
+}
+
+type statusServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewStatusServiceClient(cc *grpc.ClientConn) StatusServiceClient {
+	return &statusServiceClient{cc}
+}
+
+func (c *statusServiceClient) GetStatus(ctx context.Context, in *GetStatusRequest, opts ...grpc.CallOption) (*GetStatusResponse, error) {
+	out := new(GetStatusResponse)
+	err := grpc.Invoke(ctx, "/coreos.clair.StatusService/GetStatus", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for StatusService service
+
+type StatusServiceServer interface {
+	// The RPC used to show the internal state of current Clair instance.
+	GetStatus(context.Context, *GetStatusRequest) (*GetStatusResponse, error)
+}
+
+func RegisterStatusServiceServer(s *grpc.Server, srv StatusServiceServer) {
+	s.RegisterService(&_StatusService_serviceDesc, srv)
+}
+
+func _StatusService_GetStatus_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetStatusRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(StatusServiceServer).GetStatus(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/coreos.clair.StatusService/GetStatus",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(StatusServiceServer).GetStatus(ctx, req.(*GetStatusRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _StatusService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "coreos.clair.StatusService",
+	HandlerType: (*StatusServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "GetStatus",
+			Handler:    _StatusService_GetStatus_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "api/v3/clairpb/clair.proto",
+}
+
 func init() { proto.RegisterFile("api/v3/clairpb/clair.proto", fileDescriptor0) }
 
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+	0xde, 0x15, 0x3d, 0xad, 0xf7, 0x60, 0x3d, 0x0e, 0xfd, 0xc2, 0x1a, 0x4e, 0xba, 0x43, 0xba, 0xaf,
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+	0xa3, 0xaf, 0x2a, 0xd5, 0xa4, 0xb8, 0x80, 0xa9, 0x3b, 0xf4, 0xd5, 0x01, 0xc9, 0x68, 0x61, 0xe5,
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+	0x63, 0x88, 0xc2, 0x2a, 0xad, 0x52, 0x93, 0xe4, 0x7d, 0x58, 0x88, 0x43, 0x5f, 0x9e, 0xd3, 0x5a,
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+	0xe7, 0xda, 0x0c, 0xe0, 0xe8, 0x3e, 0x66, 0xbd, 0x0f, 0x51, 0x01, 0x21, 0x40, 0xe6, 0x0a, 0x1b,
-	0x84, 0x6b, 0x80, 0x27, 0xf2, 0xb5, 0x7d, 0x13, 0xd7, 0x00, 0x4f, 0xac, 0x5f, 0x75, 0x58, 0x7d,
+	0x61, 0x1a, 0xe1, 0x91, 0xbc, 0xb6, 0x6f, 0x62, 0x1a, 0xe1, 0x91, 0xf3, 0x8b, 0x09, 0x1b, 0xaf,
-	0xad, 0x09, 0x59, 0x87, 0x9a, 0x33, 0x8a, 0x22, 0x0c, 0x78, 0x96, 0x08, 0x55, 0x85, 0xc9, 0x49,
+	0x55, 0x21, 0xdb, 0x50, 0xf7, 0x46, 0x49, 0x82, 0x11, 0xcf, 0x03, 0xa1, 0xa6, 0x78, 0x72, 0x92,
-	0xae, 0xc1, 0x7c, 0x80, 0xa7, 0x3c, 0x3b, 0xf2, 0x8a, 0x00, 0x2e, 0x18, 0xf3, 0x2e, 0x2c, 0xe4,
+	0x9b, 0x50, 0x8d, 0xf0, 0x05, 0xcf, 0x8f, 0xbc, 0x22, 0x18, 0x27, 0x8c, 0x79, 0x07, 0x96, 0x0b,
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+	0x70, 0x91, 0x9d, 0x38, 0xe5, 0x38, 0x16, 0x2d, 0xc8, 0xe7, 0x00, 0x34, 0x4b, 0x53, 0x1d, 0xd7,
-	0x7e, 0x74, 0xc5, 0xc2, 0x5b, 0x4f, 0x02, 0x17, 0x4f, 0xd1, 0xdd, 0xcd, 0xdc, 0x42, 0x76, 0x26,
+	0x0f, 0xce, 0x58, 0x78, 0xeb, 0x71, 0xe4, 0xe3, 0x0b, 0xf4, 0x77, 0x72, 0xaf, 0x90, 0x9b, 0x73,
-	0x9c, 0xf9, 0x31, 0xd4, 0x0b, 0x4c, 0x44, 0x31, 0x9e, 0x80, 0x65, 0x17, 0x4a, 0x76, 0x2c, 0xa4,
+	0x67, 0x7f, 0x08, 0x8d, 0x39, 0x2a, 0xa2, 0x98, 0x40, 0xb0, 0x65, 0x17, 0x4a, 0x6e, 0x4a, 0x64,
-	0xd4, 0xd0, 0x33, 0x9c, 0xdd, 0x86, 0x5b, 0x9f, 0xd2, 0xe8, 0x38, 0x4b, 0xa1, 0x5d, 0x66, 0x23,
+	0xd0, 0x30, 0x73, 0x98, 0xbd, 0x0d, 0x97, 0x3e, 0xa6, 0xc9, 0x61, 0x1e, 0x42, 0x3b, 0xcc, 0x45,
-	0x75, 0x93, 0x55, 0x2b, 0xe0, 0x93, 0xd5, 0x84, 0xdb, 0xaf, 0x73, 0x8a, 0x19, 0xdb, 0xf9, 0x57,
+	0xea, 0xeb, 0x55, 0x9b, 0x83, 0x27, 0x67, 0x0b, 0x2e, 0xbf, 0xce, 0x28, 0x45, 0xac, 0xf3, 0x0e,
-	0x83, 0xa5, 0x24, 0xa3, 0x17, 0x18, 0x8d, 0x3d, 0x07, 0xc9, 0x08, 0xaa, 0x99, 0xe7, 0x8a, 0x34,
+	0xac, 0x3d, 0x42, 0xae, 0x16, 0x7a, 0xea, 0x89, 0x23, 0xe3, 0xda, 0x93, 0xf8, 0x76, 0x76, 0xe1,
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+	0x5c, 0x4e, 0xef, 0xad, 0xdf, 0x8a, 0xce, 0x3f, 0x06, 0xac, 0xea, 0x0e, 0x3c, 0xc7, 0x64, 0x1c,
-	0xaf, 0xaf, 0x91, 0xd5, 0x76, 0x72, 0x51, 0xb7, 0x5f, 0xe6, 0xee, 0xf1, 0x57, 0xe4, 0x18, 0x6a,
+	0x78, 0x48, 0x46, 0x50, 0xcb, 0x9d, 0x47, 0xb2, 0x75, 0xc2, 0xe5, 0x94, 0x09, 0xda, 0xdb, 0xa7,
-	0xd9, 0x1b, 0x89, 0xac, 0x5f, 0x7a, 0x41, 0x9a, 0xd6, 0x45, 0x26, 0xea, 0xe4, 0x86, 0x3c, 0x79,
+	0xde, 0x56, 0x67, 0xfb, 0xab, 0x5f, 0xff, 0xfc, 0xce, 0xdc, 0x24, 0x1b, 0x6d, 0x7d, 0x18, 0xda,
-	0xd1, 0x9a, 0x4f, 0x4f, 0xde, 0xd1, 0x36, 0x3a, 0x3f, 0xea, 0x50, 0xcf, 0xb6, 0x25, 0xa9, 0xfd,
+	0x2f, 0x0b, 0x77, 0xe3, 0x15, 0x39, 0x84, 0x7a, 0xfe, 0x05, 0x24, 0xdb, 0xa7, 0x3e, 0xc8, 0xb6,
-	0x15, 0x2c, 0x4d, 0x2d, 0x37, 0x79, 0xef, 0x92, 0xdd, 0x8f, 0x53, 0xb9, 0x73, 0xa5, 0x1b, 0xc2,
+	0x73, 0x92, 0x8a, 0x8a, 0xdc, 0x94, 0x91, 0x57, 0x9c, 0x6a, 0x16, 0xf9, 0xae, 0x71, 0xa3, 0xf3,
-	0xba, 0x25, 0xb3, 0xb9, 0x41, 0xae, 0xb7, 0xb3, 0xb7, 0x03, 0x6b, 0xbf, 0x8c, 0x7b, 0xf0, 0x9d,
+	0x83, 0x09, 0x8d, 0xfc, 0x18, 0x74, 0xed, 0xaf, 0x60, 0x75, 0xe6, 0x31, 0x21, 0xff, 0x3f, 0xe5,
-	0x06, 0x2b, 0xc5, 0x13, 0x23, 0x53, 0x6f, 0xd5, 0x85, 0x64, 0x30, 0xdf, 0xbf, 0x9a, 0x71, 0x3e,
+	0xad, 0x49, 0x53, 0xb9, 0x7a, 0xa6, 0x17, 0xc9, 0xb9, 0x24, 0xb3, 0xb9, 0x40, 0xce, 0xb7, 0xf3,
-	0xa9, 0x8d, 0xe2, 0xa4, 0xf6, 0x6e, 0x43, 0xdd, 0x09, 0x07, 0xf9, 0x88, 0xc3, 0xde, 0x17, 0x65,
+	0xaf, 0x11, 0x6b, 0xbf, 0x4c, 0x7b, 0xf0, 0xad, 0x01, 0xeb, 0xf3, 0x11, 0x42, 0x66, 0x6e, 0xe3,
-	0xf5, 0x5f, 0x49, 0x6f, 0x4e, 0xfe, 0x31, 0xb7, 0xfd, 0x5f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xe6,
+	0x89, 0xe0, 0xb3, 0xdf, 0x3d, 0x9b, 0x72, 0x31, 0xa9, 0x1b, 0xf3, 0x93, 0xea, 0x44, 0xb0, 0x9c,
-	0x24, 0x28, 0x46, 0xae, 0x0c, 0x00, 0x00,
+	0xa2, 0x46, 0x37, 0xe9, 0x0b, 0xa8, 0x66, 0xe0, 0x23, 0x97, 0x8f, 0x15, 0x5e, 0x40, 0xaf, 0x7d,
+	0xe5, 0xb5, 0x72, 0x15, 0x7d, 0x55, 0x46, 0xaf, 0x92, 0x72, 0x3b, 0xc5, 0xe4, 0xbd, 0xcb, 0xd0,
+	0xf0, 0xe2, 0x41, 0xd1, 0x6c, 0xd8, 0xfb, 0xac, 0xac, 0xfe, 0xeb, 0xea, 0x2d, 0xc9, 0x3f, 0x56,
+	0x6f, 0xff, 0x1b, 0x00, 0x00, 0xff, 0xff, 0x25, 0xa8, 0x93, 0xc1, 0x8e, 0x0d, 0x00, 0x00,
 }

api/v3/clairpb/clair.pb.gw.go

@@ -140,6 +140,23 @@ func request_NotificationService_MarkNotificationAsRead_0(ctx context.Context, m
 
 }
 
+var (
+	filter_StatusService_GetStatus_0 = &utilities.DoubleArray{Encoding: map[string]int{}, Base: []int(nil), Check: []int(nil)}
+)
+
+func request_StatusService_GetStatus_0(ctx context.Context, marshaler runtime.Marshaler, client StatusServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetStatusRequest
+	var metadata runtime.ServerMetadata
+
+	if err := runtime.PopulateQueryParameters(&protoReq, req.URL.Query(), filter_StatusService_GetStatus_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.GetStatus(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
 // RegisterAncestryServiceHandlerFromEndpoint is same as RegisterAncestryServiceHandler but
 // automatically dials to "endpoint" and closes the connection when "ctx" gets done.
 func RegisterAncestryServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
@@ -361,3 +378,81 @@ var (
 
 	forward_NotificationService_MarkNotificationAsRead_0 = runtime.ForwardResponseMessage
 )
+
+// RegisterStatusServiceHandlerFromEndpoint is same as RegisterStatusServiceHandler but
+// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
+func RegisterStatusServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
+	conn, err := grpc.Dial(endpoint, opts...)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Printf("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+			return
+		}
+		go func() {
+			<-ctx.Done()
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Printf("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+		}()
+	}()
+
+	return RegisterStatusServiceHandler(ctx, mux, conn)
+}
+
+// RegisterStatusServiceHandler registers the http handlers for service StatusService to "mux".
+// The handlers forward requests to the grpc endpoint over "conn".
+func RegisterStatusServiceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
+	return RegisterStatusServiceHandlerClient(ctx, mux, NewStatusServiceClient(conn))
+}
+
+// RegisterStatusServiceHandler registers the http handlers for service StatusService to "mux".
+// The handlers forward requests to the grpc endpoint over the given implementation of "StatusServiceClient".
+// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "StatusServiceClient"
+// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
+// "StatusServiceClient" to call the correct interceptors.
+func RegisterStatusServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client StatusServiceClient) error {
+
+	mux.Handle("GET", pattern_StatusService_GetStatus_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		if cn, ok := w.(http.CloseNotifier); ok {
+			go func(done <-chan struct{}, closed <-chan bool) {
+				select {
+				case <-done:
+				case <-closed:
+					cancel()
+				}
+			}(ctx.Done(), cn.CloseNotify())
+		}
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_StatusService_GetStatus_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_StatusService_GetStatus_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+var (
+	pattern_StatusService_GetStatus_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0}, []string{"status"}, ""))
+)
+
+var (
+	forward_StatusService_GetStatus_0 = runtime.ForwardResponseMessage
+)

api/v3/clairpb/clair.proto

@@ -207,3 +207,17 @@ message MarkNotificationAsReadRequest {
 }
 
 message MarkNotificationAsReadResponse {}
+
+message GetStatusRequest {}
+
+message GetStatusResponse {
+  // The status of the current Clair instance.
+  ClairStatus status = 1;
+}
+
+service StatusService {
+  // The RPC used to show the internal state of current Clair instance.
+  rpc GetStatus(GetStatusRequest) returns (GetStatusResponse) {
+    option (google.api.http) = { get: "/status" };
+  }
+}

api/v3/clairpb/clair.swagger.json

@@ -152,6 +152,31 @@
           "NotificationService"
         ]
       }
+    },
+    "/status": {
+      "get": {
+        "summary": "The RPC used to show the internal state of current Clair instance.",
+        "operationId": "GetStatus",
+        "responses": {
+          "200": {
+            "description": "",
+            "schema": {
+              "$ref": "#/definitions/clairGetStatusResponse"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "test",
+            "in": "query",
+            "required": false,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "StatusService"
+        ]
+      }
     }
   },
   "definitions": {
@@ -329,6 +354,15 @@
         }
       }
     },
+    "clairGetStatusResponse": {
+      "type": "object",
+      "properties": {
+        "status": {
+          "$ref": "#/definitions/clairClairStatus",
+          "description": "The status of the current Clair instance."
+        }
+      }
+    },
     "clairLayer": {
       "type": "object",
       "properties": {

api/v3/clairpb/run_in_docker.sh

@@ -22,17 +22,7 @@ protoc -I/usr/include -I. \
   -I"${GOPATH}/src" \
   -I"${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis" \
   --go_out=plugins=grpc:. \
-  ./api/v3/clairpb/clair.proto
-
-protoc -I/usr/include -I. \
-  -I"${GOPATH}/src" \
-  -I"${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis" \
   --grpc-gateway_out=logtostderr=true:. \
-  ./api/v3/clairpb/clair.proto
-
-protoc -I/usr/include -I. \
-  -I"${GOPATH}/src" \
-  -I"${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis" \
   --swagger_out=logtostderr=true:. \
   ./api/v3/clairpb/clair.proto
 

api/v3/rpc.go

@@ -17,7 +17,6 @@ package v3
 import (
 	"fmt"
 
-	"github.com/golang/protobuf/ptypes"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
@@ -38,6 +37,20 @@ type AncestryServer struct {
 	Store database.Datastore
 }
 
+// StatusServer implements StatusService interface for serving RPC.
+type StatusServer struct {
+	Store database.Datastore
+}
+
+// GetStatus implements getting the current status of Clair via the Clair service.
+func (s *StatusServer) GetStatus(ctx context.Context, req *pb.GetStatusRequest) (*pb.GetStatusResponse, error) {
+	if clairStatus, err := GetClairStatus(s.Store); err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	} else {
+		return &pb.GetStatusResponse{Status: clairStatus}, nil
+	}
+}
+
 // PostAncestry implements posting an ancestry via the Clair gRPC service.
 func (s *AncestryServer) PostAncestry(ctx context.Context, req *pb.PostAncestryRequest) (*pb.PostAncestryResponse, error) {
 	ancestryName := req.GetAncestryName()
@@ -82,7 +95,7 @@ func (s *AncestryServer) PostAncestry(ctx context.Context, req *pb.PostAncestryR
 		return nil, status.Error(codes.Internal, "ancestry is failed to be processed: "+err.Error())
 	}
 
-	clairStatus, err := s.getClairStatus()
+	clairStatus, err := GetClairStatus(s.Store)
 	if err != nil {
 		return nil, status.Error(codes.Internal, err.Error())
 	}
@@ -90,27 +103,6 @@ func (s *AncestryServer) PostAncestry(ctx context.Context, req *pb.PostAncestryR
 	return &pb.PostAncestryResponse{Status: clairStatus}, nil
 }
 
-func (s *AncestryServer) getClairStatus() (*pb.ClairStatus, error) {
-	status := &pb.ClairStatus{
-		Listers:   clair.Processors.Listers,
-		Detectors: clair.Processors.Detectors,
-	}
-
-	t, firstUpdate, err := clair.GetLastUpdateTime(s.Store)
-	if err != nil {
-		return nil, err
-	}
-	if firstUpdate {
-		return status, nil
-	}
-
-	status.LastUpdateTime, err = ptypes.TimestampProto(t)
-	if err != nil {
-		return nil, err
-	}
-	return status, nil
-}
-
 // GetAncestry implements retrieving an ancestry via the Clair gRPC service.
 func (s *AncestryServer) GetAncestry(ctx context.Context, req *pb.GetAncestryRequest) (*pb.GetAncestryResponse, error) {
 	if req.GetAncestryName() == "" {
@@ -173,7 +165,7 @@ func (s *AncestryServer) GetAncestry(ctx context.Context, req *pb.GetAncestryReq
 		}
 	}
 
-	clairStatus, err := s.getClairStatus()
+	clairStatus, err := GetClairStatus(s.Store)
 	if err != nil {
 		return nil, status.Error(codes.Internal, err.Error())
 	}

api/v3/server.go

@@ -69,16 +69,17 @@ func newGrpcServer(store database.Datastore, tlsConfig *tls.Config) *grpc.Server
 	grpcServer := grpc.NewServer(grpcOpts...)
 	pb.RegisterAncestryServiceServer(grpcServer, &AncestryServer{Store: store})
 	pb.RegisterNotificationServiceServer(grpcServer, &NotificationServer{Store: store})
+	pb.RegisterStatusServiceServer(grpcServer, &StatusServer{Store: store})
 	return grpcServer
 }
 
-type httpStatusWritter struct {
+type httpStatusWriter struct {
 	http.ResponseWriter
 
 	StatusCode int
 }
 
-func (w *httpStatusWritter) WriteHeader(code int) {
+func (w *httpStatusWriter) WriteHeader(code int) {
 	w.StatusCode = code
 	w.ResponseWriter.WriteHeader(code)
 }
@@ -87,7 +88,7 @@ func (w *httpStatusWritter) WriteHeader(code int) {
 func logHandler(handler http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		start := time.Now()
-		lrw := &httpStatusWritter{ResponseWriter: w, StatusCode: http.StatusOK}
+		lrw := &httpStatusWriter{ResponseWriter: w, StatusCode: http.StatusOK}
 
 		handler.ServeHTTP(lrw, r)
 
@@ -139,6 +140,11 @@ func newGrpcGatewayServer(ctx context.Context, listenerAddr string, tlsConfig *t
 		log.WithError(err).Fatal("could not initialize notification grpc gateway")
 	}
 
+	err = pb.RegisterStatusServiceHandler(ctx, gwmux, conn)
+	if err != nil {
+		log.WithError(err).Fatal("could not initialize status grpc gateway")
+	}
+
 	return logHandler(gwmux)
 }
 

api/v3/util.go

@@ -0,0 +1,31 @@
+package v3
+
+import (
+	"github.com/coreos/clair"
+	pb "github.com/coreos/clair/api/v3/clairpb"
+	"github.com/coreos/clair/database"
+	"github.com/golang/protobuf/ptypes"
+)
+
+// GetClairStatus retrieves the current status of Clair and wrap it inside
+// protobuf struct.
+func GetClairStatus(store database.Datastore) (*pb.ClairStatus, error) {
+	status := &pb.ClairStatus{
+		Listers:   clair.Processors.Listers,
+		Detectors: clair.Processors.Detectors,
+	}
+
+	t, firstUpdate, err := clair.GetLastUpdateTime(store)
+	if err != nil {
+		return nil, err
+	}
+	if firstUpdate {
+		return status, nil
+	}
+
+	status.LastUpdateTime, err = ptypes.TimestampProto(t)
+	if err != nil {
+		return nil, err
+	}
+	return status, nil
+}