-
Notifications
You must be signed in to change notification settings - Fork 1.7k
/
main.go
65 lines (54 loc) · 1.69 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
// Copyright 2019 Google LLC
//
// 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
//
// https://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.
// Sample grpc-ping acts as an intermediary to the ping service.
package main
import (
"log"
"net"
"os"
"google.golang.org/grpc"
pb "github.com/GoogleCloudPlatform/golang-samples/run/grpc-ping/pkg/api/v1"
)
// [START cloudrun_grpc_server]
func main() {
log.Printf("grpc-ping: starting server...")
port := os.Getenv("PORT")
if port == "" {
port = "8080"
log.Printf("Defaulting to port %s", port)
}
listener, err := net.Listen("tcp", ":"+port)
if err != nil {
log.Fatalf("net.Listen: %v", err)
}
grpcServer := grpc.NewServer()
pb.RegisterPingServiceServer(grpcServer, &pingService{})
if err = grpcServer.Serve(listener); err != nil {
log.Fatal(err)
}
}
// [END cloudrun_grpc_server]
// conn holds an open connection to the ping service.
var conn *grpc.ClientConn
func init() {
if os.Getenv("GRPC_PING_HOST") != "" {
var err error
conn, err = NewConn(os.Getenv("GRPC_PING_HOST"), os.Getenv("GRPC_PING_INSECURE") != "")
if err != nil {
log.Fatal(err)
}
} else {
log.Println("Starting without support for SendUpstream: configure with 'GRPC_PING_HOST' environment variable. E.g., example.com:443")
}
}