clair/pkg/grpcutil/server.go
Jimmy Zelinskie 1ec2759550 pkg/grpcutil: init
This change refactors gRPC code used within the v3 API package into
generic code that can be used for managing gRPC and gRPC Gateway.
2018-09-11 14:46:52 -04:00

47 lines
1.4 KiB
Go

// Copyright 2018 clair authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package grpcutil
import (
"crypto/tls"
"github.com/grpc-ecosystem/go-grpc-prometheus"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
)
// RegisterServicesFunc is a function that registers gRPC services with a given
// server.
type RegisterServicesFunc func(*grpc.Server)
// NewServer allocates a new grpc.Server and handles some some boilerplate
// configuration.
func NewServer(tlsConfig *tls.Config, fn RegisterServicesFunc) *grpc.Server {
// Default ServerOptions
grpcOpts := []grpc.ServerOption{
grpc.UnaryInterceptor(grpc_prometheus.UnaryServerInterceptor),
grpc.StreamInterceptor(grpc_prometheus.StreamServerInterceptor),
}
if tlsConfig != nil {
grpcOpts = append(grpcOpts, grpc.Creds(credentials.NewTLS(tlsConfig)))
}
// Register services with a new grpc.Server.
gsrv := grpc.NewServer(grpcOpts...)
fn(gsrv)
return gsrv
}