peridot/apollo/impl/v1/server.go

// Copyright (c) All respective contributors to the Peridot Project. All rights reserved.
// Copyright (c) 2021-2022 Rocky Enterprise Software Foundation, Inc. All rights reserved.
// Copyright (c) 2021-2022 Ctrl IQ, Inc. All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
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// may be used to endorse or promote products derived from this software without
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package apolloimpl

import (
	"context"
	"github.com/sirupsen/logrus"
	"github.com/spf13/viper"
	"google.golang.org/grpc"
	apollodb "peridot.resf.org/apollo/db"
	apollopb "peridot.resf.org/apollo/pb"
	commonpb "peridot.resf.org/common"
	"peridot.resf.org/utils"
)

type Server struct {
	apollopb.UnimplementedApolloServiceServer

	log                *logrus.Logger
	db                 apollodb.Access
	rssFeedTitle       string
	rssFeedDescription string
	homepage           string
}

// NewServer creates a new Apollo server.
func NewServer(db apollodb.Access) *Server {
	return &Server{
		log:                logrus.New(),
		db:                 db,
		rssFeedTitle:       "RESF Errata Feed",
		rssFeedDescription: "Advisories issued by the Rocky Enterprise Software Foundation",
		homepage:           viper.GetString("homepage"),
	}
}

func (s *Server) interceptor(ctx context.Context, req interface{}, usi *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
	n := utils.EndInterceptor

	return n(ctx, req, usi, handler)
}

func (s *Server) Run() {
	res := utils.NewGRPCServer(
		&utils.GRPCOptions{
			Interceptor: s.interceptor,
		},
		func(r *utils.Register) {
			endpoints := []utils.GrpcEndpointRegister{
				commonpb.RegisterHealthCheckServiceHandlerFromEndpoint,
				apollopb.RegisterApolloServiceHandlerFromEndpoint,
			}

			for _, endpoint := range endpoints {
				err := endpoint(r.Context, r.Mux, r.Endpoint, r.Options)
				if err != nil {
					s.log.Fatalf("could not register handler - %v", err)
				}
			}
		},
		func(r *utils.RegisterServer) {
			commonpb.RegisterHealthCheckServiceServer(r.Server, &utils.HealthServer{})

			apollopb.RegisterApolloServiceServer(r.Server, s)
		},
	)

	defer res.Cancel()
	res.WaitGroup.Wait()
}