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/*
*
* Copyright 2022 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.
*
*/
// Package main runs an Echo service.
package main
import (
"flag"
"log"
"net"
"github.com/google/s2a-go"
"github.com/google/s2a-go/example/echo"
"google.golang.org/grpc"
pb "github.com/google/s2a-go/example/proto/echo_go_proto"
)
var (
port = flag.String("port", ":8080", "Echo service address port.")
s2aAddr = flag.String("s2a_addr", "0.0.0.0:61365", "S2A service address.")
)
func runServer(listenPort *string) {
creds, err := s2a.NewServerCreds(&s2a.ServerOptions{
S2AAddress: *s2aAddr,
VerificationMode: s2a.ConnectToGoogle,
LocalIdentities: []s2a.Identity{s2a.NewHostname("test_rsa_server_identity")},
})
if err != nil {
log.Fatalf("NewClientCreds() failed: %v", err)
}
listener, err := net.Listen("tcp", *port)
if err != nil {
log.Fatalf("Failed to listen on addres %s: %v", *port, err)
}
s := grpc.NewServer(grpc.Creds(creds))
log.Printf("Server: started gRPC Echo Server at: %s", *port)
pb.RegisterEchoServer(s, &echo.Server{})
if err := s.Serve(listener); err != nil {
log.Fatalf("Failed to serve: %v", err)
}
}
func main() {
runServer(port)
}
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