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main.go
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main.go
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// Copyright 2016 Google, Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"flag"
"log"
"net"
"net/http"
"os"
"path/filepath"
"time"
pb "github.com/kelseyhightower/grpc-hello-service/auth"
healthpb "google.golang.org/grpc/health/grpc_health_v1alpha"
"github.com/boltdb/bolt"
"golang.org/x/net/trace"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/health"
)
func withConfigDir(path string) string {
return filepath.Join(os.Getenv("HOME"), ".hello", "server", path)
}
var boltdb *bolt.DB
func main() {
var (
debugListenAddr = flag.String("debug-listen-addr", "127.0.0.1:7801", "HTTP listen address.")
listenAddr = flag.String("listen-addr", "127.0.0.1:7800", "HTTP listen address.")
tlsCert = flag.String("tls-cert", withConfigDir("cert.pem"), "TLS server certificate.")
tlsKey = flag.String("tls-key", withConfigDir("key.pem"), "TLS server key.")
jwtPrivateKey = flag.String("jwt-private-key", withConfigDir("jwt-key.pem"), "The RSA private key to use for signing JWTs")
)
flag.Parse()
var err error
log.Println("Auth service starting...")
for {
_, err := os.Open("/var/lib/auth.db")
if !os.IsNotExist(err) {
break
}
log.Println("missing auth database, retrying in 5 secs.")
time.Sleep(5 * time.Second)
}
boltdb, err = bolt.Open("/var/lib/auth.db", 0600, nil)
if err != nil {
log.Fatal(err)
}
ta, err := credentials.NewServerTLSFromFile(*tlsCert, *tlsKey)
if err != nil {
log.Fatal(err)
}
gs := grpc.NewServer(grpc.Creds(ta))
as, err := NewAuthServer(*jwtPrivateKey)
if err != nil {
log.Fatal(err)
}
pb.RegisterAuthServer(gs, as)
hs := health.NewHealthServer()
hs.SetServingStatus("grpc.health.v1.authservice", 1)
healthpb.RegisterHealthServer(gs, hs)
ln, err := net.Listen("tcp", *listenAddr)
if err != nil {
log.Fatal(err)
}
go gs.Serve(ln)
trace.AuthRequest = func(req *http.Request) (any, sensitive bool) { return true, true }
log.Println("Auth service started successfully.")
log.Fatal(http.ListenAndServe(*debugListenAddr, nil))
}