func NewETCDMetrics(logger lager.Logger, etcdOptions *ETCDOptions) (*ETCDMetrics, error) {
var tlsConfig *tls.Config
if etcdOptions.CertFile != "" && etcdOptions.KeyFile != "" {
var err error
tlsConfig, err = cf_http.NewTLSConfig(etcdOptions.CertFile, etcdOptions.KeyFile, etcdOptions.CAFile)
if err != nil {
return nil, err
}
tlsConfig.ClientSessionCache = tls.NewLRUClientSessionCache(etcdOptions.ClientSessionCacheSize)
}
client := cf_http.NewClient()
client.CheckRedirect = func(*http.Request, []*http.Request) error {
return errRedirected
}
if tr, ok := client.Transport.(*http.Transport); ok {
tr.TLSClientConfig = tlsConfig
} else {
return nil, errors.New("Invalid transport")
}
return &ETCDMetrics{
logger: logger,
etcdCluster: etcdOptions.ClusterUrls,
client: client,
}, nil
}
func main() {
cf_debug_server.AddFlags(flag.CommandLine)
cf_lager.AddFlags(flag.CommandLine)
etcdFlags := AddETCDFlags(flag.CommandLine)
encryptionFlags := encryption.AddEncryptionFlags(flag.CommandLine)
flag.Parse()
cf_http.Initialize(*communicationTimeout)
logger, reconfigurableSink := cf_lager.New("bbs")
logger.Info("starting")
initializeDropsonde(logger)
clock := clock.NewClock()
consulClient, err := consuladapter.NewClient(*consulCluster)
if err != nil {
logger.Fatal("new-consul-client-failed", err)
}
sessionManager := consuladapter.NewSessionManager(consulClient)
serviceClient := initializeServiceClient(logger, clock, consulClient, sessionManager)
cbWorkPool := taskworkpool.New(logger, *taskCallBackWorkers, taskworkpool.HandleCompletedTask)
keyManager, err := encryptionFlags.Validate()
if err != nil {
logger.Fatal("cannot-setup-encryption", err)
}
cryptor := encryption.NewCryptor(keyManager, rand.Reader)
etcdOptions, err := etcdFlags.Validate()
if err != nil {
logger.Fatal("etcd-validation-failed", err)
}
storeClient := initializeEtcdStoreClient(logger, etcdOptions)
db := initializeEtcdDB(logger, cryptor, storeClient, cbWorkPool, serviceClient)
migrationsDone := make(chan struct{})
maintainer := initializeLockMaintainer(logger, serviceClient)
migrationManager := migration.NewManager(logger,
db,
cryptor,
storeClient,
migrations.Migrations,
migrationsDone,
clock,
)
encryptor := encryptor.New(logger, db, keyManager, cryptor, storeClient, clock)
hub := events.NewHub()
watcher := watcher.NewWatcher(
logger,
db,
hub,
clock,
bbsWatchRetryWaitDuration,
)
handler := handlers.New(logger, db, hub, migrationsDone)
metricsNotifier := metrics.NewPeriodicMetronNotifier(
logger,
*reportInterval,
etcdOptions,
clock,
)
var server ifrit.Runner
if *requireSSL {
tlsConfig, err := cf_http.NewTLSConfig(*certFile, *keyFile, *caFile)
if err != nil {
logger.Fatal("tls-configuration-failed", err)
}
server = http_server.NewTLSServer(*listenAddress, handler, tlsConfig)
} else {
server = http_server.New(*listenAddress, handler)
}
members := grouper.Members{
{"lock-maintainer", maintainer},
{"workPool", cbWorkPool},
{"server", server},
{"migration-manager", migrationManager},
{"encryptor", encryptor},
{"watcher", watcher},
{"hub-closer", closeHub(logger.Session("hub-closer"), hub)},
{"metrics", *metricsNotifier},
}
if dbgAddr := cf_debug_server.DebugAddress(flag.CommandLine); dbgAddr != "" {
members = append(grouper.Members{
{"debug-server", cf_debug_server.Runner(dbgAddr, reconfigurableSink)},
}, members...)
}
group := grouper.NewOrdered(os.Interrupt, members)
monitor := ifrit.Invoke(sigmon.New(group))
logger.Info("started")
err = <-monitor.Wait()
if err != nil {
logger.Error("exited-with-failure", err)
os.Exit(1)
}
logger.Info("exited")
}
func main() {
cf_debug_server.AddFlags(flag.CommandLine)
cf_lager.AddFlags(flag.CommandLine)
etcdFlags := AddETCDFlags(flag.CommandLine)
encryptionFlags := encryption.AddEncryptionFlags(flag.CommandLine)
flag.Parse()
cf_http.Initialize(*communicationTimeout)
logger, reconfigurableSink := cf_lager.New("bbs")
logger.Info("starting")
initializeDropsonde(logger)
clock := clock.NewClock()
consulClient, err := consuladapter.NewClientFromUrl(*consulCluster)
if err != nil {
logger.Fatal("new-consul-client-failed", err)
}
serviceClient := bbs.NewServiceClient(consulClient, clock)
maintainer := initializeLockMaintainer(logger, serviceClient)
_, portString, err := net.SplitHostPort(*listenAddress)
if err != nil {
logger.Fatal("failed-invalid-listen-address", err)
}
portNum, err := net.LookupPort("tcp", portString)
if err != nil {
logger.Fatal("failed-invalid-listen-port", err)
}
_, portString, err = net.SplitHostPort(*healthAddress)
if err != nil {
logger.Fatal("failed-invalid-health-address", err)
}
_, err = net.LookupPort("tcp", portString)
if err != nil {
logger.Fatal("failed-invalid-health-port", err)
}
registrationRunner := initializeRegistrationRunner(logger, consulClient, portNum, clock)
cbWorkPool := taskworkpool.New(logger, *taskCallBackWorkers, taskworkpool.HandleCompletedTask)
var activeDB db.DB
var sqlDB *sqldb.SQLDB
var sqlConn *sql.DB
var storeClient etcddb.StoreClient
var etcdDB *etcddb.ETCDDB
key, keys, err := encryptionFlags.Parse()
if err != nil {
logger.Fatal("cannot-setup-encryption", err)
}
keyManager, err := encryption.NewKeyManager(key, keys)
if err != nil {
logger.Fatal("cannot-setup-encryption", err)
}
cryptor := encryption.NewCryptor(keyManager, rand.Reader)
etcdOptions, err := etcdFlags.Validate()
if err != nil {
logger.Fatal("etcd-validation-failed", err)
}
if etcdOptions.IsConfigured {
storeClient = initializeEtcdStoreClient(logger, etcdOptions)
etcdDB = initializeEtcdDB(logger, cryptor, storeClient, cbWorkPool, serviceClient, *desiredLRPCreationTimeout)
activeDB = etcdDB
}
// If SQL database info is passed in, use SQL instead of ETCD
if *databaseDriver != "" && *databaseConnectionString != "" {
var err error
connectionString := appendSSLConnectionStringParam(logger, *databaseDriver, *databaseConnectionString, *sqlCACertFile)
sqlConn, err = sql.Open(*databaseDriver, connectionString)
if err != nil {
logger.Fatal("failed-to-open-sql", err)
}
defer sqlConn.Close()
sqlConn.SetMaxOpenConns(*maxDatabaseConnections)
sqlConn.SetMaxIdleConns(*maxDatabaseConnections)
err = sqlConn.Ping()
if err != nil {
logger.Fatal("sql-failed-to-connect", err)
}
sqlDB = sqldb.NewSQLDB(sqlConn, *convergenceWorkers, *updateWorkers, format.ENCRYPTED_PROTO, cryptor, guidprovider.DefaultGuidProvider, clock, *databaseDriver)
err = sqlDB.CreateConfigurationsTable(logger)
if err != nil {
logger.Fatal("sql-failed-create-configurations-table", err)
}
activeDB = sqlDB
}
if activeDB == nil {
logger.Fatal("no-database-configured", errors.New("no database configured"))
}
encryptor := encryptor.New(logger, activeDB, keyManager, cryptor, clock)
migrationsDone := make(chan struct{})
migrationManager := migration.NewManager(logger,
etcdDB,
storeClient,
sqlDB,
sqlConn,
cryptor,
migrations.Migrations,
migrationsDone,
clock,
*databaseDriver,
)
desiredHub := events.NewHub()
actualHub := events.NewHub()
repClientFactory := rep.NewClientFactory(cf_http.NewClient(), cf_http.NewClient())
auctioneerClient := initializeAuctioneerClient(logger)
exitChan := make(chan struct{})
handler := handlers.New(
logger,
*updateWorkers,
*convergenceWorkers,
activeDB,
desiredHub,
actualHub,
cbWorkPool,
serviceClient,
auctioneerClient,
repClientFactory,
migrationsDone,
exitChan,
)
metricsNotifier := metrics.NewPeriodicMetronNotifier(
logger,
*reportInterval,
etcdOptions,
clock,
)
var server ifrit.Runner
if *requireSSL {
tlsConfig, err := cf_http.NewTLSConfig(*certFile, *keyFile, *caFile)
if err != nil {
logger.Fatal("tls-configuration-failed", err)
}
server = http_server.NewTLSServer(*listenAddress, handler, tlsConfig)
} else {
server = http_server.New(*listenAddress, handler)
}
healthcheckServer := http_server.New(*healthAddress, http.HandlerFunc(healthCheckHandler))
members := grouper.Members{
{"healthcheck", healthcheckServer},
{"lock-maintainer", maintainer},
{"workpool", cbWorkPool},
{"server", server},
{"migration-manager", migrationManager},
{"encryptor", encryptor},
{"hub-maintainer", hubMaintainer(logger, desiredHub, actualHub)},
{"metrics", *metricsNotifier},
{"registration-runner", registrationRunner},
}
if dbgAddr := cf_debug_server.DebugAddress(flag.CommandLine); dbgAddr != "" {
members = append(grouper.Members{
{"debug-server", cf_debug_server.Runner(dbgAddr, reconfigurableSink)},
}, members...)
}
group := grouper.NewOrdered(os.Interrupt, members)
monitor := ifrit.Invoke(sigmon.New(group))
go func() {
// If a handler writes to this channel, we've hit an unrecoverable error
// and should shut down (cleanly)
<-exitChan
monitor.Signal(os.Interrupt)
}()
logger.Info("started")
err = <-monitor.Wait()
if sqlConn != nil {
sqlConn.Close()
}
if err != nil {
logger.Error("exited-with-failure", err)
os.Exit(1)
}
logger.Info("exited")
}