forked from TrueCloudLab/frostfs-node
154 lines
3.5 KiB
Go
154 lines
3.5 KiB
Go
package main
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import (
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"context"
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"flag"
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"fmt"
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"log"
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"os"
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"os/signal"
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"syscall"
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"github.com/TrueCloudLab/frostfs-node/cmd/frostfs-node/config"
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"github.com/TrueCloudLab/frostfs-node/misc"
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"github.com/TrueCloudLab/frostfs-node/pkg/services/control"
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"go.uber.org/zap"
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)
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const (
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// SuccessReturnCode returns when application closed without panic.
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SuccessReturnCode = 0
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)
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// prints err to standard logger and calls os.Exit(1).
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func fatalOnErr(err error) {
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if err != nil {
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log.Fatal(err)
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}
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}
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// prints err with details to standard logger and calls os.Exit(1).
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func fatalOnErrDetails(details string, err error) {
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if err != nil {
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log.Fatal(fmt.Errorf("%s: %w", details, err))
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}
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}
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func main() {
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configFile := flag.String("config", "", "path to config")
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versionFlag := flag.Bool("version", false, "frostfs node version")
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dryRunFlag := flag.Bool("check", false, "validate configuration and exit")
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flag.Parse()
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if *versionFlag {
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fmt.Print(misc.BuildInfo("NeoFS Storage node"))
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os.Exit(SuccessReturnCode)
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}
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appCfg := config.New(config.Prm{}, config.WithConfigFile(*configFile))
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err := validateConfig(appCfg)
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fatalOnErr(err)
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if *dryRunFlag {
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return
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}
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c := initCfg(appCfg)
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initApp(c)
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c.setHealthStatus(control.HealthStatus_STARTING)
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bootUp(c)
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c.setHealthStatus(control.HealthStatus_READY)
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wait(c)
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c.setHealthStatus(control.HealthStatus_SHUTTING_DOWN)
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shutdown(c)
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}
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func initAndLog(c *cfg, name string, initializer func(*cfg)) {
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c.log.Info(fmt.Sprintf("initializing %s service...", name))
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initializer(c)
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c.log.Info(fmt.Sprintf("%s service has been successfully initialized", name))
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}
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func initApp(c *cfg) {
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initLocalStorage(c)
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c.ctx, c.ctxCancel = signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
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initAndLog(c, "storage engine", func(c *cfg) {
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fatalOnErr(c.cfgObject.cfgLocalStorage.localStorage.Open())
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fatalOnErr(c.cfgObject.cfgLocalStorage.localStorage.Init())
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})
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initAndLog(c, "gRPC", initGRPC)
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initAndLog(c, "netmap", initNetmapService)
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initAndLog(c, "accounting", initAccountingService)
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initAndLog(c, "container", initContainerService)
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initAndLog(c, "session", initSessionService)
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initAndLog(c, "reputation", initReputationService)
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initAndLog(c, "notification", initNotifications)
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initAndLog(c, "object", initObjectService)
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initAndLog(c, "pprof", initProfiler)
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initAndLog(c, "prometheus", initMetrics)
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initAndLog(c, "tree", initTreeService)
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initAndLog(c, "control", initControlService)
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initAndLog(c, "morph notifications", listenMorphNotifications)
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c.workers = append(c.workers, newWorkerFromFunc(c.configWatcher))
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}
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func runAndLog(c *cfg, name string, logSuccess bool, starter func(*cfg)) {
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c.log.Info(fmt.Sprintf("starting %s service...", name))
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starter(c)
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if logSuccess {
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c.log.Info(fmt.Sprintf("%s service started successfully", name))
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}
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}
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func bootUp(c *cfg) {
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runAndLog(c, "NATS", true, connectNats)
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runAndLog(c, "gRPC", false, serveGRPC)
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runAndLog(c, "notary", true, makeAndWaitNotaryDeposit)
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bootstrapNode(c)
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startWorkers(c)
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}
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func wait(c *cfg) {
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c.log.Info("application started",
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zap.String("version", misc.Version))
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select {
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case <-c.ctx.Done(): // graceful shutdown
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case err := <-c.internalErr: // internal application error
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close(c.internalErr)
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c.ctxCancel()
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c.log.Warn("internal application error",
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zap.String("message", err.Error()))
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}
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}
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func shutdown(c *cfg) {
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for _, closer := range c.closers {
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closer()
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}
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c.log.Debug("waiting for all processes to stop")
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c.wg.Wait()
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}
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func (c *cfg) onShutdown(f func()) {
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c.closers = append(c.closers, f)
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}
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