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
|
package cmd
import (
"context"
"flag"
"fmt"
"log/slog"
"net/http"
"os"
"os/signal"
"strings"
"syscall"
"time"
"github.com/jpappel/atlas/pkg/data"
"github.com/jpappel/atlas/pkg/server"
)
type ServerFlags struct {
Address string
Port int
}
func SetupServerFlags(args []string, fs *flag.FlagSet, flags *ServerFlags) {
fs.StringVar(&flags.Address, "address", "127.0.0.1", "the address to listen on, prefix with 'unix:' to create a unixsocket")
fs.IntVar(&flags.Port, "port", 8080, "the port to bind to")
fs.Parse(args)
}
func RunServer(gFlags GlobalFlags, sFlags ServerFlags, db *data.Query) byte {
var addr string
var s server.Server
if after, ok := strings.CutPrefix(sFlags.Address, "unix:"); ok {
slog.Debug("Preparing unix domain socket")
addr = after
s = &server.UnixServer{Addr: addr, Db: db, WorkersPerConn: gFlags.NumWorkers}
} else {
slog.Debug("Preparing http server")
addr = fmt.Sprintf("%s:%d", sFlags.Address, sFlags.Port)
s = &http.Server{Addr: addr, Handler: server.NewMux(db)}
}
serverErrors := make(chan error, 1)
exit := make(chan os.Signal, 1)
signal.Notify(exit, syscall.SIGTERM, os.Interrupt)
slog.Info("Starting server on", slog.String("addr", addr))
go func(serverErrors chan<- error) {
if err := s.ListenAndServe(); err != nil {
serverErrors <- err
}
close(serverErrors)
}(serverErrors)
optCtx, optCancel := context.WithCancel(context.Background())
go db.PeriodicOptimize(optCtx, 1*time.Hour)
defer optCancel()
select {
case <-exit:
slog.Info("Recieved signal to shutdown")
case err := <-serverErrors:
if err != nil {
slog.Error("Server error", slog.String("err", err.Error()))
}
}
slog.Info("Shutting down server")
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
if err := s.Shutdown(ctx); err != nil {
slog.Error("Error shutting down server",
slog.String("err", err.Error()))
return 1
}
return 0
}
|
