dex/cmd/dex-overlord/main.go
Bobby Rullo 8b6a2699d9 cmd/dex-overlord, db: migrations in overlord
Migrations happen only in the overlord, so there's no thundering herd,
and database initialziation can be more easily controlled.
2015-08-20 11:44:43 -07:00

121 lines
3.1 KiB
Go

package main
import (
"expvar"
"flag"
"fmt"
"net/http"
"net/url"
"os"
"time"
"github.com/coreos/go-oidc/key"
"github.com/coreos/dex/admin"
"github.com/coreos/dex/db"
pflag "github.com/coreos/dex/pkg/flag"
"github.com/coreos/dex/pkg/log"
ptime "github.com/coreos/dex/pkg/time"
"github.com/coreos/dex/server"
"github.com/coreos/dex/user"
)
var version = "DEV"
func init() {
expvar.NewString("dex.version").Set(version)
}
func main() {
fs := flag.NewFlagSet("dex-overlord", flag.ExitOnError)
secret := fs.String("key-secret", "", "symmetric key used to encrypt/decrypt signing key data in DB")
dbURL := fs.String("db-url", "", "DSN-formatted database connection string")
dbMigrate := fs.Bool("db-migrate", true, "perform database migrations when starting up overlord. This includes the initial DB objects creation.")
keyPeriod := fs.Duration("key-period", 24*time.Hour, "length of time for-which a given key will be valid")
gcInterval := fs.Duration("gc-interval", time.Hour, "length of time between garbage collection runs")
adminListen := fs.String("admin-listen", "http://0.0.0.0:5557", "scheme, host and port for listening for administrative operation requests ")
localConnectorID := fs.String("local-connector", "local", "ID of the local connector")
logDebug := fs.Bool("log-debug", false, "log debug-level information")
logTimestamps := fs.Bool("log-timestamps", false, "prefix log lines with timestamps")
if err := fs.Parse(os.Args[1:]); err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
if err := pflag.SetFlagsFromEnv(fs, "DEX_OVERLORD"); err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
if *logDebug {
log.EnableDebug()
}
if *logTimestamps {
log.EnableTimestamps()
}
if len(*secret) == 0 {
log.Fatalf("--key-secret unset")
}
adminURL, err := url.Parse(*adminListen)
if err != nil {
log.Fatalf("Unable to use --admin-listen flag: %v", err)
}
dbCfg := db.Config{
DSN: *dbURL,
MaxIdleConnections: 1,
MaxOpenConnections: 1,
}
dbc, err := db.NewConnection(dbCfg)
if err != nil {
log.Fatalf(err.Error())
}
if *dbMigrate {
var sleep time.Duration
for {
if migrations, err := db.MigrateToLatest(dbc); err == nil {
log.Infof("Performed %d db migrations", migrations)
break
}
sleep = ptime.ExpBackoff(sleep, time.Minute)
log.Errorf("Unable to migrate database, retrying in %v: %v", sleep, err)
time.Sleep(sleep)
}
}
userRepo := db.NewUserRepo(dbc)
pwiRepo := db.NewPasswordInfoRepo(dbc)
userManager := user.NewManager(userRepo,
pwiRepo, db.TransactionFactory(dbc), user.ManagerOptions{})
adminAPI := admin.NewAdminAPI(userManager, userRepo, pwiRepo, *localConnectorID)
kRepo, err := db.NewPrivateKeySetRepo(dbc, *secret)
if err != nil {
log.Fatalf(err.Error())
}
krot := key.NewPrivateKeyRotator(kRepo, *keyPeriod)
s := server.NewAdminServer(adminAPI, krot)
h := s.HTTPHandler()
httpsrv := &http.Server{
Addr: adminURL.Host,
Handler: h,
}
gc := db.NewGarbageCollector(dbc, *gcInterval)
log.Infof("Binding to %s...", httpsrv.Addr)
go func() {
log.Fatal(httpsrv.ListenAndServe())
}()
gc.Run()
<-krot.Run()
}