package main import ( "context" "encoding/hex" "encoding/xml" "errors" "fmt" "io" "net/http" "os" "os/signal" "runtime/debug" "strings" "sync" "syscall" "time" v2container "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container" "git.frostfs.info/TrueCloudLab/frostfs-observability/tracing" grpctracing "git.frostfs.info/TrueCloudLab/frostfs-observability/tracing/grpc" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/cache" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/handler" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer" s3middleware "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/resolver" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/tokens" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs/frostfsid" ffidcontract "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs/frostfsid/contract" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs/policy" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs/policy/contract" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs/services" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/logs" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/version" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/wallet" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/metrics" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/pkg/service/tree" "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container" cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id" "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap" "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool" treepool "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool/tree" "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user" "github.com/go-chi/chi/v5/middleware" "github.com/nspcc-dev/neo-go/pkg/crypto/keys" "github.com/spf13/viper" "go.uber.org/zap" "golang.org/x/exp/slices" "golang.org/x/text/encoding/ianaindex" "google.golang.org/grpc" ) const awsDefaultNamespace = "http://s3.amazonaws.com/doc/2006-03-01/" type ( // App is the main application structure. App struct { ctr s3middleware.Center log *zap.Logger cfg *viper.Viper pool *pool.Pool treePool *treepool.Pool key *keys.PrivateKey obj *layer.Layer api api.Handler frostfsid *frostfsid.FrostFSID policyStorage *policy.Storage servers []Server unbindServers []ServerInfo mu sync.RWMutex metrics *metrics.AppMetrics bucketResolver *resolver.BucketResolver services []*Service settings *appSettings webDone chan struct{} wrkDone chan struct{} } appSettings struct { logLevel zap.AtomicLevel httpLogging s3middleware.LogHTTPConfig maxClient maxClientsConfig defaultMaxAge int reconnectInterval time.Duration resolveZoneList []string isResolveListAllow bool // True if ResolveZoneList contains allowed zones frostfsidValidation bool mu sync.RWMutex namespaces Namespaces defaultXMLNS bool bypassContentEncodingInChunks bool clientCut bool maxBufferSizeForPut uint64 md5Enabled bool namespaceHeader string defaultNamespaces []string policyDenyByDefault bool sourceIPHeader string retryMaxAttempts int domains []string vhsEnabled bool vhsHeader string servernameHeader string vhsNamespacesEnabled map[string]bool retryMaxBackoff time.Duration retryStrategy handler.RetryStrategy } maxClientsConfig struct { deadline time.Duration count int } Logger struct { logger *zap.Logger lvl zap.AtomicLevel } ) func newApp(ctx context.Context, log *Logger, v *viper.Viper) *App { objPool, treePool, key := getPools(ctx, log.logger, v) cfg := tokens.Config{ FrostFS: frostfs.NewAuthmateFrostFS(frostfs.NewFrostFS(objPool, key), log.logger), Key: key, CacheConfig: getAccessBoxCacheConfig(v, log.logger), RemovingCheckAfterDurations: fetchRemovingCheckInterval(v, log.logger), } // prepare auth center ctr := auth.New(tokens.New(cfg), v.GetStringSlice(cfgAllowedAccessKeyIDPrefixes)) app := &App{ ctr: ctr, log: log.logger, cfg: v, pool: objPool, treePool: treePool, key: key, webDone: make(chan struct{}, 1), wrkDone: make(chan struct{}, 1), settings: newAppSettings(log, v), } app.init(ctx) return app } func (a *App) init(ctx context.Context) { a.setRuntimeParameters() a.initFrostfsID(ctx) a.initPolicyStorage(ctx) a.initAPI(ctx) a.initMetrics() a.initServers(ctx) a.initTracing(ctx) } func (a *App) initLayer(ctx context.Context) { a.initResolver() // prepare random key for anonymous requests randomKey, err := keys.NewPrivateKey() if err != nil { a.log.Fatal(logs.CouldntGenerateRandomKey, zap.Error(err)) } var gateOwner user.ID user.IDFromKey(&gateOwner, a.key.PrivateKey.PublicKey) var corsCnrInfo *data.BucketInfo if a.cfg.IsSet(cfgContainersCORS) { corsCnrInfo, err = a.fetchContainerInfo(ctx, cfgContainersCORS) if err != nil { a.log.Fatal(logs.CouldNotFetchCORSContainerInfo, zap.Error(err)) } } var lifecycleCnrInfo *data.BucketInfo if a.cfg.IsSet(cfgContainersLifecycle) { lifecycleCnrInfo, err = a.fetchContainerInfo(ctx, cfgContainersLifecycle) if err != nil { a.log.Fatal(logs.CouldNotFetchLifecycleContainerInfo, zap.Error(err)) } } layerCfg := &layer.Config{ Cache: layer.NewCache(getCacheOptions(a.cfg, a.log)), AnonKey: layer.AnonymousKey{ Key: randomKey, }, GateOwner: gateOwner, Resolver: a.bucketResolver, TreeService: tree.NewTree(services.NewPoolWrapper(a.treePool), a.log), Features: a.settings, GateKey: a.key, CORSCnrInfo: corsCnrInfo, LifecycleCnrInfo: lifecycleCnrInfo, } // prepare object layer a.obj = layer.NewLayer(a.log, frostfs.NewFrostFS(a.pool, a.key), layerCfg) } func newAppSettings(log *Logger, v *viper.Viper) *appSettings { settings := &appSettings{ logLevel: log.lvl, httpLogging: s3middleware.LogHTTPConfig{}, maxClient: newMaxClients(v), defaultMaxAge: fetchDefaultMaxAge(v, log.logger), reconnectInterval: fetchReconnectInterval(v), frostfsidValidation: v.GetBool(cfgFrostfsIDValidationEnabled), } settings.resolveZoneList = v.GetStringSlice(cfgResolveBucketAllow) settings.isResolveListAllow = len(settings.resolveZoneList) > 0 if !settings.isResolveListAllow { settings.resolveZoneList = v.GetStringSlice(cfgResolveBucketDeny) } settings.update(v, log.logger) return settings } func (s *appSettings) update(v *viper.Viper, log *zap.Logger) { namespaceHeader := v.GetString(cfgResolveNamespaceHeader) nsConfig, defaultNamespaces := fetchNamespacesConfig(log, v) defaultXMLNS := v.GetBool(cfgKludgeUseDefaultXMLNS) bypassContentEncodingInChunks := v.GetBool(cfgKludgeBypassContentEncodingCheckInChunks) clientCut := v.GetBool(cfgClientCut) maxBufferSizeForPut := v.GetUint64(cfgBufferMaxSizeForPut) md5Enabled := v.GetBool(cfgMD5Enabled) policyDenyByDefault := v.GetBool(cfgPolicyDenyByDefault) sourceIPHeader := v.GetString(cfgSourceIPHeader) retryMaxAttempts := fetchRetryMaxAttempts(v) retryMaxBackoff := fetchRetryMaxBackoff(v) retryStrategy := fetchRetryStrategy(v) domains := fetchDomains(v, log) vhsEnabled := v.GetBool(cfgVHSEnabled) vhsHeader := v.GetString(cfgVHSHeader) servernameHeader := v.GetString(cfgServernameHeader) vhsNamespacesEnabled := s.prepareVHSNamespaces(v, log) httpLoggingEnabled := v.GetBool(cfgHTTPLoggingEnabled) httpLoggingMaxBody := v.GetInt64(cfgHTTPLoggingMaxBody) httpLoggingMaxLogSize := v.GetInt(cfgHTTPLoggingMaxLogSize) httpLoggingOutputPath := v.GetString(cfgHTTPLoggingDestination) httpLoggingUseGzip := v.GetBool(cfgHTTPLoggingGzip) s.mu.Lock() defer s.mu.Unlock() s.httpLogging.Enabled = httpLoggingEnabled s.httpLogging.MaxBody = httpLoggingMaxBody s.httpLogging.MaxLogSize = httpLoggingMaxLogSize s.httpLogging.OutputPath = httpLoggingOutputPath s.httpLogging.UseGzip = httpLoggingUseGzip s.httpLogging.InitHTTPLogger(log) s.namespaceHeader = namespaceHeader s.defaultNamespaces = defaultNamespaces s.namespaces = nsConfig.Namespaces s.defaultXMLNS = defaultXMLNS s.bypassContentEncodingInChunks = bypassContentEncodingInChunks s.clientCut = clientCut s.maxBufferSizeForPut = maxBufferSizeForPut s.md5Enabled = md5Enabled s.policyDenyByDefault = policyDenyByDefault s.sourceIPHeader = sourceIPHeader s.retryMaxAttempts = retryMaxAttempts s.retryMaxBackoff = retryMaxBackoff s.retryStrategy = retryStrategy s.domains = domains s.vhsEnabled = vhsEnabled s.vhsHeader = vhsHeader s.servernameHeader = servernameHeader s.vhsNamespacesEnabled = vhsNamespacesEnabled } func (s *appSettings) prepareVHSNamespaces(v *viper.Viper, log *zap.Logger) map[string]bool { nsMap := fetchVHSNamespaces(v, log) vhsNamespaces := make(map[string]bool, len(nsMap)) for ns, flag := range nsMap { vhsNamespaces[s.ResolveNamespaceAlias(ns)] = flag } return vhsNamespaces } func (s *appSettings) Domains() []string { s.mu.RLock() defer s.mu.RUnlock() return s.domains } func (s *appSettings) GlobalVHS() bool { s.mu.RLock() defer s.mu.RUnlock() return s.vhsEnabled } func (s *appSettings) VHSHeader() string { s.mu.RLock() defer s.mu.RUnlock() return s.vhsHeader } func (s *appSettings) ServernameHeader() string { s.mu.RLock() defer s.mu.RUnlock() return s.servernameHeader } func (s *appSettings) VHSNamespacesEnabled() map[string]bool { s.mu.RLock() defer s.mu.RUnlock() return s.vhsNamespacesEnabled } func (s *appSettings) BypassContentEncodingInChunks() bool { s.mu.RLock() defer s.mu.RUnlock() return s.bypassContentEncodingInChunks } func (s *appSettings) ClientCut() bool { s.mu.RLock() defer s.mu.RUnlock() return s.clientCut } func (s *appSettings) BufferMaxSizeForPut() uint64 { s.mu.RLock() defer s.mu.RUnlock() return s.maxBufferSizeForPut } func (s *appSettings) DefaultPlacementPolicy(namespace string) netmap.PlacementPolicy { s.mu.RLock() defer s.mu.RUnlock() return s.namespaces[namespace].LocationConstraints[defaultConstraintName] } func (s *appSettings) PlacementPolicy(namespace, constraint string) (netmap.PlacementPolicy, bool) { s.mu.RLock() placementPolicy, ok := s.namespaces[namespace].LocationConstraints[constraint] s.mu.RUnlock() return placementPolicy, ok } func (s *appSettings) CopiesNumbers(namespace, constraint string) ([]uint32, bool) { s.mu.RLock() copiesNumbers, ok := s.namespaces[namespace].CopiesNumbers[constraint] s.mu.RUnlock() return copiesNumbers, ok } func (s *appSettings) DefaultCopiesNumbers(namespace string) []uint32 { s.mu.RLock() defer s.mu.RUnlock() return s.namespaces[namespace].CopiesNumbers[defaultConstraintName] } func (s *appSettings) LogHTTPConfig() s3middleware.LogHTTPConfig { s.mu.RLock() defer s.mu.RUnlock() return s.httpLogging } func (s *appSettings) NewXMLDecoder(r io.Reader) *xml.Decoder { dec := xml.NewDecoder(r) dec.CharsetReader = func(charset string, reader io.Reader) (io.Reader, error) { enc, err := ianaindex.IANA.Encoding(charset) if err != nil { return nil, fmt.Errorf("charset %s: %w", charset, err) } return enc.NewDecoder().Reader(reader), nil } s.mu.RLock() if s.defaultXMLNS { dec.DefaultSpace = awsDefaultNamespace } s.mu.RUnlock() return dec } func (s *appSettings) DefaultMaxAge() int { return s.defaultMaxAge } func (s *appSettings) ResolveZoneList() []string { return s.resolveZoneList } func (s *appSettings) IsResolveListAllow() bool { return s.isResolveListAllow } func (s *appSettings) MD5Enabled() bool { s.mu.RLock() defer s.mu.RUnlock() return s.md5Enabled } func (s *appSettings) NamespaceHeader() string { s.mu.RLock() defer s.mu.RUnlock() return s.namespaceHeader } func (s *appSettings) FormContainerZone(ns string) string { if len(ns) == 0 { return v2container.SysAttributeZoneDefault } return ns + ".ns" } func (s *appSettings) isDefaultNamespace(ns string) bool { s.mu.RLock() namespaces := s.defaultNamespaces s.mu.RUnlock() return slices.Contains(namespaces, ns) } func (s *appSettings) ResolveNamespaceAlias(namespace string) string { if s.isDefaultNamespace(namespace) { return defaultNamespace } return namespace } func (s *appSettings) PolicyDenyByDefault() bool { s.mu.RLock() defer s.mu.RUnlock() return s.policyDenyByDefault } func (s *appSettings) SourceIPHeader() string { s.mu.RLock() defer s.mu.RUnlock() return s.sourceIPHeader } func (s *appSettings) RetryMaxAttempts() int { s.mu.RLock() defer s.mu.RUnlock() return s.retryMaxAttempts } func (s *appSettings) RetryMaxBackoff() time.Duration { s.mu.RLock() defer s.mu.RUnlock() return s.retryMaxBackoff } func (s *appSettings) RetryStrategy() handler.RetryStrategy { s.mu.RLock() defer s.mu.RUnlock() return s.retryStrategy } func (a *App) initAPI(ctx context.Context) { a.initLayer(ctx) a.initHandler() } func (a *App) initMetrics() { cfg := metrics.AppMetricsConfig{ Logger: a.log, PoolStatistics: frostfs.NewPoolStatistic(a.pool), TreeStatistic: a.treePool, Enabled: a.cfg.GetBool(cfgPrometheusEnabled), } a.metrics = metrics.NewAppMetrics(cfg) a.metrics.State().SetHealth(metrics.HealthStatusStarting) } func (a *App) initFrostfsID(ctx context.Context) { cli, err := ffidcontract.New(ctx, ffidcontract.Config{ RPCAddress: a.cfg.GetString(cfgRPCEndpoint), Contract: a.cfg.GetString(cfgFrostfsIDContract), ProxyContract: a.cfg.GetString(cfgProxyContract), Key: a.key, }) if err != nil { a.log.Fatal(logs.InitFrostfsIDContractFailed, zap.Error(err)) } a.frostfsid, err = frostfsid.NewFrostFSID(frostfsid.Config{ Cache: cache.NewFrostfsIDCache(getFrostfsIDCacheConfig(a.cfg, a.log)), FrostFSID: cli, Logger: a.log, }) if err != nil { a.log.Fatal(logs.InitFrostfsIDContractFailed, zap.Error(err)) } } func (a *App) initPolicyStorage(ctx context.Context) { policyContract, err := contract.New(ctx, contract.Config{ RPCAddress: a.cfg.GetString(cfgRPCEndpoint), Contract: a.cfg.GetString(cfgPolicyContract), ProxyContract: a.cfg.GetString(cfgProxyContract), Key: a.key, }) if err != nil { a.log.Fatal(logs.InitPolicyContractFailed, zap.Error(err)) } a.policyStorage = policy.NewStorage(policy.StorageConfig{ Contract: policyContract, Cache: cache.NewMorphPolicyCache(getMorphPolicyCacheConfig(a.cfg, a.log)), Log: a.log, }) } func (a *App) initResolver() { var err error a.bucketResolver, err = resolver.NewBucketResolver(a.getResolverOrder(), a.getResolverConfig()) if err != nil { a.log.Fatal(logs.FailedToCreateResolver, zap.Error(err)) } } func (a *App) getResolverConfig() *resolver.Config { return &resolver.Config{ FrostFS: frostfs.NewResolverFrostFS(a.pool), RPCAddress: a.cfg.GetString(cfgRPCEndpoint), } } func (a *App) getResolverOrder() []string { order := a.cfg.GetStringSlice(cfgResolveOrder) if a.cfg.GetString(cfgRPCEndpoint) == "" { order = remove(order, resolver.NNSResolver) a.log.Warn(logs.ResolverNNSWontBeUsedSinceRPCEndpointIsntProvided) } if len(order) == 0 { a.log.Info(logs.ContainerResolverWillBeDisabled) } return order } func (a *App) initTracing(ctx context.Context) { instanceID := "" if len(a.servers) > 0 { instanceID = a.servers[0].Address() } cfg := tracing.Config{ Enabled: a.cfg.GetBool(cfgTracingEnabled), Exporter: tracing.Exporter(a.cfg.GetString(cfgTracingExporter)), Endpoint: a.cfg.GetString(cfgTracingEndpoint), Service: "frostfs-s3-gw", InstanceID: instanceID, Version: version.Version, } updated, err := tracing.Setup(ctx, cfg) if err != nil { a.log.Warn(logs.FailedToInitializeTracing, zap.Error(err)) } if updated { a.log.Info(logs.TracingConfigUpdated) } } func (a *App) shutdownTracing() { const tracingShutdownTimeout = 5 * time.Second shdnCtx, cancel := context.WithTimeout(context.Background(), tracingShutdownTimeout) defer cancel() if err := tracing.Shutdown(shdnCtx); err != nil { a.log.Warn(logs.FailedToShutdownTracing, zap.Error(err)) } } func newMaxClients(cfg *viper.Viper) maxClientsConfig { config := maxClientsConfig{} config.count = fetchMaxClientsCount(cfg) config.deadline = fetchMaxClientsDeadline(cfg) return config } func getPools(ctx context.Context, logger *zap.Logger, cfg *viper.Viper) (*pool.Pool, *treepool.Pool, *keys.PrivateKey) { var prm pool.InitParameters var prmTree treepool.InitParameters password := wallet.GetPassword(cfg, cfgWalletPassphrase) key, err := wallet.GetKeyFromPath(cfg.GetString(cfgWalletPath), cfg.GetString(cfgWalletAddress), password) if err != nil { logger.Fatal(logs.CouldNotLoadFrostFSPrivateKey, zap.Error(err)) } prm.SetKey(&key.PrivateKey) prmTree.SetKey(key) logger.Info(logs.UsingCredentials, zap.String("FrostFS", hex.EncodeToString(key.PublicKey().Bytes()))) for _, peer := range fetchPeers(logger, cfg) { prm.AddNode(peer) prmTree.AddNode(peer) } connTimeout := fetchConnectTimeout(cfg) prm.SetNodeDialTimeout(connTimeout) prmTree.SetNodeDialTimeout(connTimeout) streamTimeout := fetchStreamTimeout(cfg) prm.SetNodeStreamTimeout(streamTimeout) prmTree.SetNodeStreamTimeout(streamTimeout) healthCheckTimeout := fetchHealthCheckTimeout(cfg) prm.SetHealthcheckTimeout(healthCheckTimeout) prmTree.SetHealthcheckTimeout(healthCheckTimeout) rebalanceInterval := fetchRebalanceInterval(cfg) prm.SetClientRebalanceInterval(rebalanceInterval) prmTree.SetClientRebalanceInterval(rebalanceInterval) errorThreshold := fetchErrorThreshold(cfg) prm.SetErrorThreshold(errorThreshold) prm.SetGracefulCloseOnSwitchTimeout(fetchSetGracefulCloseOnSwitchTimeout(cfg)) prm.SetLogger(logger) prmTree.SetLogger(logger) prmTree.SetMaxRequestAttempts(cfg.GetInt(cfgTreePoolMaxAttempts)) var apiGRPCDialOpts []grpc.DialOption var treeGRPCDialOpts []grpc.DialOption if cfg.GetBool(cfgTracingEnabled) { interceptors := []grpc.DialOption{ grpc.WithUnaryInterceptor(grpctracing.NewUnaryClientInteceptor()), grpc.WithStreamInterceptor(grpctracing.NewStreamClientInterceptor()), } treeGRPCDialOpts = append(treeGRPCDialOpts, interceptors...) apiGRPCDialOpts = append(apiGRPCDialOpts, interceptors...) } prm.SetGRPCDialOptions(apiGRPCDialOpts...) prmTree.SetGRPCDialOptions(treeGRPCDialOpts...) p, err := pool.NewPool(prm) if err != nil { logger.Fatal(logs.FailedToCreateConnectionPool, zap.Error(err)) } if err = p.Dial(ctx); err != nil { logger.Fatal(logs.FailedToDialConnectionPool, zap.Error(err)) } treePool, err := treepool.NewPool(prmTree) if err != nil { logger.Fatal(logs.FailedToCreateTreePool, zap.Error(err)) } if err = treePool.Dial(ctx); err != nil { logger.Fatal(logs.FailedToDialTreePool, zap.Error(err)) } return p, treePool, key } func remove(list []string, element string) []string { for i, item := range list { if item == element { return append(list[:i], list[i+1:]...) } } return list } // Wait waits for an application to finish. // // Pre-logs a message about the launch of the application mentioning its // version (version.Version) and its name (frostfs-s3-gw). At the end, it writes // about the stop to the log. func (a *App) Wait() { a.log.Info(logs.ApplicationStarted, zap.String("name", "frostfs-s3-gw"), zap.String("version", version.Version), ) a.metrics.State().SetVersion(version.Version) a.setHealthStatus() <-a.webDone // wait for web-server to be stopped a.log.Info(logs.ApplicationFinished) } func (a *App) setHealthStatus() { a.metrics.State().SetHealth(metrics.HealthStatusReady) } // Serve runs HTTP server to handle S3 API requests. func (a *App) Serve(ctx context.Context) { cfg := api.Config{ Throttle: middleware.ThrottleOpts{ Limit: a.settings.maxClient.count, BacklogTimeout: a.settings.maxClient.deadline, }, Handler: a.api, Center: a.ctr, Log: a.log, Metrics: a.metrics, MiddlewareSettings: a.settings, PolicyChecker: a.policyStorage, FrostfsID: a.frostfsid, FrostFSIDValidation: a.settings.frostfsidValidation, XMLDecoder: a.settings, Tagging: a.obj, } chiRouter := api.NewRouter(cfg) // Use mux.Router as http.Handler srv := new(http.Server) srv.Handler = chiRouter srv.ErrorLog = zap.NewStdLog(a.log) srv.ReadTimeout = a.cfg.GetDuration(cfgWebReadTimeout) srv.ReadHeaderTimeout = a.cfg.GetDuration(cfgWebReadHeaderTimeout) srv.WriteTimeout = a.cfg.GetDuration(cfgWebWriteTimeout) srv.IdleTimeout = a.cfg.GetDuration(cfgWebIdleTimeout) a.startServices() servs := a.getServers() for i := range servs { go func(i int) { a.log.Info(logs.StartingServer, zap.String("address", servs[i].Address())) if err := srv.Serve(servs[i].Listener()); err != nil && err != http.ErrServerClosed { a.metrics.MarkUnhealthy(servs[i].Address()) a.log.Fatal(logs.ListenAndServe, zap.Error(err)) } }(i) } if len(a.unbindServers) != 0 { a.scheduleReconnect(ctx, srv) } sigs := make(chan os.Signal, 1) signal.Notify(sigs, syscall.SIGHUP) LOOP: for { select { case <-ctx.Done(): break LOOP case <-sigs: a.configReload(ctx) } } ctx, cancel := shutdownContext() defer cancel() a.log.Info(logs.StoppingServer, zap.Error(srv.Shutdown(ctx))) a.metrics.Shutdown() a.stopServices() a.shutdownTracing() close(a.webDone) } func shutdownContext() (context.Context, context.CancelFunc) { return context.WithTimeout(context.Background(), defaultShutdownTimeout) } func (a *App) configReload(ctx context.Context) { a.log.Info(logs.SIGHUPConfigReloadStarted) if !a.cfg.IsSet(cmdConfig) && !a.cfg.IsSet(cmdConfigDir) { a.log.Warn(logs.FailedToReloadConfigBecauseItsMissed) return } if err := readInConfig(a.cfg); err != nil { a.log.Warn(logs.FailedToReloadConfig, zap.Error(err)) return } if err := a.bucketResolver.UpdateResolvers(a.getResolverOrder()); err != nil { a.log.Warn(logs.FailedToReloadResolvers, zap.Error(err)) } if err := a.updateServers(); err != nil { a.log.Warn(logs.FailedToReloadServerParameters, zap.Error(err)) } a.setRuntimeParameters() a.stopServices() a.startServices() a.updateSettings() a.metrics.SetEnabled(a.cfg.GetBool(cfgPrometheusEnabled)) a.initTracing(ctx) a.setHealthStatus() a.log.Info(logs.SIGHUPConfigReloadCompleted) } func (a *App) updateSettings() { if lvl, err := getLogLevel(a.cfg); err != nil { a.log.Warn(logs.LogLevelWontBeUpdated, zap.Error(err)) } else { a.settings.logLevel.SetLevel(lvl) } a.settings.update(a.cfg, a.log) } func (a *App) startServices() { a.services = a.services[:0] pprofService := NewPprofService(a.cfg, a.log) a.services = append(a.services, pprofService) go pprofService.Start() prometheusService := NewPrometheusService(a.cfg, a.log, a.metrics.Handler()) a.services = append(a.services, prometheusService) go prometheusService.Start() } func (a *App) initServers(ctx context.Context) { serversInfo := fetchServers(a.cfg, a.log) a.servers = make([]Server, 0, len(serversInfo)) for _, serverInfo := range serversInfo { fields := []zap.Field{ zap.String("address", serverInfo.Address), zap.Bool("tls enabled", serverInfo.TLS.Enabled), zap.String("tls cert", serverInfo.TLS.CertFile), zap.String("tls key", serverInfo.TLS.KeyFile), } srv, err := newServer(ctx, serverInfo) if err != nil { a.unbindServers = append(a.unbindServers, serverInfo) a.metrics.MarkUnhealthy(serverInfo.Address) a.log.Warn(logs.FailedToAddServer, append(fields, zap.Error(err))...) continue } a.metrics.MarkHealthy(serverInfo.Address) a.servers = append(a.servers, srv) a.log.Info(logs.AddServer, fields...) } if len(a.servers) == 0 { a.log.Fatal(logs.NoHealthyServers) } } func (a *App) updateServers() error { serversInfo := fetchServers(a.cfg, a.log) a.mu.Lock() defer a.mu.Unlock() var found bool for _, serverInfo := range serversInfo { ser := a.getServer(serverInfo.Address) if ser != nil { if serverInfo.TLS.Enabled { if err := ser.UpdateCert(serverInfo.TLS.CertFile, serverInfo.TLS.KeyFile); err != nil { return fmt.Errorf("failed to update tls certs: %w", err) } found = true } } else if unbind := a.updateUnbindServerInfo(serverInfo); unbind { found = true } } if !found { return fmt.Errorf("invalid servers configuration: no known server found") } return nil } func (a *App) stopServices() { ctx, cancel := shutdownContext() defer cancel() for _, svc := range a.services { svc.ShutDown(ctx) } } func getCacheOptions(v *viper.Viper, l *zap.Logger) *layer.CachesConfig { cacheCfg := layer.DefaultCachesConfigs(l) cacheCfg.Objects.Lifetime = fetchCacheLifetime(v, l, cfgObjectsCacheLifetime, cacheCfg.Objects.Lifetime) cacheCfg.Objects.Size = fetchCacheSize(v, l, cfgObjectsCacheSize, cacheCfg.Objects.Size) cacheCfg.ObjectsList.Lifetime = fetchCacheLifetime(v, l, cfgListObjectsCacheLifetime, cacheCfg.ObjectsList.Lifetime) cacheCfg.ObjectsList.Size = fetchCacheSize(v, l, cfgListObjectsCacheSize, cacheCfg.ObjectsList.Size) cacheCfg.SessionList.Lifetime = fetchCacheLifetime(v, l, cfgSessionListCacheLifetime, cacheCfg.SessionList.Lifetime) cacheCfg.SessionList.Size = fetchCacheSize(v, l, cfgSessionListCacheSize, cacheCfg.SessionList.Size) cacheCfg.Buckets.Lifetime = fetchCacheLifetime(v, l, cfgBucketsCacheLifetime, cacheCfg.Buckets.Lifetime) cacheCfg.Buckets.Size = fetchCacheSize(v, l, cfgBucketsCacheSize, cacheCfg.Buckets.Size) cacheCfg.Names.Lifetime = fetchCacheLifetime(v, l, cfgNamesCacheLifetime, cacheCfg.Names.Lifetime) cacheCfg.Names.Size = fetchCacheSize(v, l, cfgNamesCacheSize, cacheCfg.Names.Size) cacheCfg.System.Lifetime = fetchCacheLifetime(v, l, cfgSystemCacheLifetime, cacheCfg.System.Lifetime) cacheCfg.System.Size = fetchCacheSize(v, l, cfgSystemCacheSize, cacheCfg.System.Size) cacheCfg.AccessControl.Lifetime = fetchCacheLifetime(v, l, cfgAccessControlCacheLifetime, cacheCfg.AccessControl.Lifetime) cacheCfg.AccessControl.Size = fetchCacheSize(v, l, cfgAccessControlCacheSize, cacheCfg.AccessControl.Size) return cacheCfg } func getAccessBoxCacheConfig(v *viper.Viper, l *zap.Logger) *cache.Config { cacheCfg := cache.DefaultAccessBoxConfig(l) cacheCfg.Lifetime = fetchCacheLifetime(v, l, cfgAccessBoxCacheLifetime, cacheCfg.Lifetime) cacheCfg.Size = fetchCacheSize(v, l, cfgAccessBoxCacheSize, cacheCfg.Size) return cacheCfg } func getMorphPolicyCacheConfig(v *viper.Viper, l *zap.Logger) *cache.Config { cacheCfg := cache.DefaultMorphPolicyConfig(l) cacheCfg.Lifetime = fetchCacheLifetime(v, l, cfgMorphPolicyCacheLifetime, cacheCfg.Lifetime) cacheCfg.Size = fetchCacheSize(v, l, cfgMorphPolicyCacheSize, cacheCfg.Size) return cacheCfg } func getFrostfsIDCacheConfig(v *viper.Viper, l *zap.Logger) *cache.Config { cacheCfg := cache.DefaultFrostfsIDConfig(l) cacheCfg.Lifetime = fetchCacheLifetime(v, l, cfgFrostfsIDCacheLifetime, cacheCfg.Lifetime) cacheCfg.Size = fetchCacheSize(v, l, cfgFrostfsIDCacheSize, cacheCfg.Size) return cacheCfg } func (a *App) initHandler() { var err error a.api, err = handler.New(a.log, a.obj, a.settings, a.policyStorage, a.frostfsid) if err != nil { a.log.Fatal(logs.CouldNotInitializeAPIHandler, zap.Error(err)) } } func (a *App) getServer(address string) Server { for i := range a.servers { if a.servers[i].Address() == address { return a.servers[i] } } return nil } func (a *App) updateUnbindServerInfo(info ServerInfo) bool { for i := range a.unbindServers { if a.unbindServers[i].Address == info.Address { a.unbindServers[i] = info return true } } return false } func (a *App) getServers() []Server { a.mu.RLock() defer a.mu.RUnlock() return a.servers } func (a *App) setRuntimeParameters() { if len(os.Getenv("GOMEMLIMIT")) != 0 { // default limit < yaml limit < app env limit < GOMEMLIMIT a.log.Warn(logs.RuntimeSoftMemoryDefinedWithGOMEMLIMIT) return } softMemoryLimit := fetchSoftMemoryLimit(a.cfg) previous := debug.SetMemoryLimit(softMemoryLimit) if softMemoryLimit != previous { a.log.Info(logs.RuntimeSoftMemoryLimitUpdated, zap.Int64("new_value", softMemoryLimit), zap.Int64("old_value", previous)) } } func (a *App) scheduleReconnect(ctx context.Context, srv *http.Server) { go func() { t := time.NewTicker(a.settings.reconnectInterval) defer t.Stop() for { select { case <-t.C: if a.tryReconnect(ctx, srv) { return } t.Reset(a.settings.reconnectInterval) case <-ctx.Done(): return } } }() } func (a *App) tryReconnect(ctx context.Context, sr *http.Server) bool { a.mu.Lock() defer a.mu.Unlock() a.log.Info(logs.ServerReconnecting) var failedServers []ServerInfo for _, serverInfo := range a.unbindServers { fields := []zap.Field{ zap.String("address", serverInfo.Address), zap.Bool("tls enabled", serverInfo.TLS.Enabled), zap.String("tls cert", serverInfo.TLS.CertFile), zap.String("tls key", serverInfo.TLS.KeyFile), } srv, err := newServer(ctx, serverInfo) if err != nil { a.log.Warn(logs.ServerReconnectFailed, zap.Error(err)) failedServers = append(failedServers, serverInfo) a.metrics.MarkUnhealthy(serverInfo.Address) continue } go func() { a.log.Info(logs.StartingServer, zap.String("address", srv.Address())) a.metrics.MarkHealthy(serverInfo.Address) if err = sr.Serve(srv.Listener()); err != nil && !errors.Is(err, http.ErrServerClosed) { a.log.Warn(logs.ListenAndServe, zap.Error(err)) a.metrics.MarkUnhealthy(serverInfo.Address) } }() a.servers = append(a.servers, srv) a.log.Info(logs.ServerReconnectedSuccessfully, fields...) } a.unbindServers = failedServers return len(a.unbindServers) == 0 } func (a *App) fetchContainerInfo(ctx context.Context, cfgKey string) (info *data.BucketInfo, err error) { containerString := a.cfg.GetString(cfgKey) var id cid.ID if err = id.DecodeString(containerString); err != nil { i := strings.Index(containerString, ".") if i < 0 { return nil, fmt.Errorf("invalid container address: %s", containerString) } if id, err = a.bucketResolver.Resolve(ctx, containerString[i+1:], containerString[:i]); err != nil { return nil, fmt.Errorf("resolve container address %s: %w", containerString, err) } } return getContainerInfo(ctx, id, a.pool) } func getContainerInfo(ctx context.Context, id cid.ID, frostFSPool *pool.Pool) (*data.BucketInfo, error) { prm := pool.PrmContainerGet{ ContainerID: id, } res, err := frostFSPool.GetContainer(ctx, prm) if err != nil { return nil, err } return &data.BucketInfo{ CID: id, HomomorphicHashDisabled: container.IsHomomorphicHashingDisabled(res), }, nil }