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Add Status endpoint with Clair configuration

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Implement a status endpoint providing the current lister/detector in
the current instance of Clair.
This commit is contained in:
Sida Chen 2018-08-30 15:09:24 -04:00
parent 7f9c0b1b07
commit d28f3214ce
8 changed files with 381 additions and 113 deletions
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258
api/v3/clairpb/clair.pb.go
View File

@ -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) }
var fileDescriptor0 = []byte{
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}

95
api/v3/clairpb/clair.pb.gw.go
View File

@ -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
)

14
api/v3/clairpb/clair.proto
View File

@ -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" };
}
}

34
api/v3/clairpb/clair.swagger.json
View File

@ -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": {

10
api/v3/clairpb/run_in_docker.sh
View File

@ -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

40
api/v3/rpc.go
View File

@ -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())
}

12
api/v3/server.go
View File

@ -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)
}

31
api/v3/util.go Normal file
View File

@ -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
}