/
main.go
88 lines (72 loc) · 2.02 KB
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
package main
import (
"context"
"fmt"
"net"
"os"
"os/signal"
"syscall"
"time"
pbactivity "github.com/178inaba/grpc-microservices/proto/activity"
pb "github.com/178inaba/grpc-microservices/proto/project"
"github.com/178inaba/grpc-microservices/shared/interceptor"
grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
"go.uber.org/zap"
"google.golang.org/grpc"
)
const port = 50051
func main() {
var logger *zap.Logger
var err error
environment := os.Getenv("GRPC_MICROSERVICES_ENVIRONMENT")
if environment == "production" {
logger, err = zap.NewProduction()
} else {
logger, err = zap.NewDevelopment()
}
if err != nil {
panic(fmt.Sprintf("zap new: %v, environment: %s.", err, environment))
}
defer logger.Sync()
logger.Info("Start project service.", zap.String("environment", environment))
ctx := context.Background()
activityConn, err := grpc.DialContext(ctx, os.Getenv("ACTIVITY_SERVICE_ADDR"), grpc.WithInsecure())
if err != nil {
logger.Fatal("Failed to dial activity.", zap.Error(err))
}
activityClient := pbactivity.NewActivityServiceClient(activityConn)
srv := grpc.NewServer(grpc.UnaryInterceptor(grpc_middleware.ChainUnaryServer(
interceptor.XTraceID(),
interceptor.Logging(logger),
interceptor.XUserID(),
)))
pb.RegisterProjectServiceServer(srv, &projectService{
store: newStoreOnMemory(),
activityClient: activityClient,
})
go func() {
lis, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
if err != nil {
logger.Fatal("Failed to create listener.", zap.Error(err))
}
logger.Info("Start server.", zap.Int("port", port))
if err := srv.Serve(lis); err != nil {
logger.Info("Exit server.", zap.Error(err))
}
}()
quit := make(chan os.Signal, 1)
signal.Notify(quit, syscall.SIGQUIT)
<-quit
logger.Info("Received a signal of graceful shutdown.")
stopped := make(chan struct{})
go func() {
srv.GracefulStop()
close(stopped)
}()
select {
case <-time.After(time.Minute):
srv.Stop()
case <-stopped:
}
logger.Info("Completed graceful shutdown.")
}