Golang slog.Fatalf函数代码示例

func win_service_main() {
	const svcName = "scollector"
	var err error
	switch *win_service_command {
	case "install":
		err = installService(svcName, "Stack Exchange's Metric Collection Agent")
	case "remove":
		err = removeService(svcName)
	case "start":
		err = startService(svcName)
	case "stop":
		err = controlService(svcName, svc.Stop, svc.Stopped)
	case "":
		isIntSess, err := svc.IsAnInteractiveSession()
		if err != nil {
			slog.Fatalf("failed to determine if we are running in an interactive session: %v", err)
		}
		if !isIntSess {
			go runService(svcName, false)
		}
		return
	default:
		slog.Fatalf("unknown winsvc command: %v", *win_service_command)
	}
	if err != nil {
		slog.Fatalf("failed to %s %s: %v", *win_service_command, svcName, err)
	}
	os.Exit(0)
}

func readConf() *conf.Conf {
	conf := &conf.Conf{
		Freq: 15,
	}
	loc := *flagConf
	if *flagConf == "" {
		p, err := exePath()
		if err != nil {
			slog.Error(err)
			return conf
		}
		dir := filepath.Dir(p)
		loc = filepath.Join(dir, "scollector.toml")
	}
	f, err := os.Open(loc)
	if err != nil {
		if *flagConf != "" {
			slog.Fatal(err)
		}
		if *flagDebug {
			slog.Error(err)
		}
	} else {
		defer f.Close()
		md, err := toml.DecodeReader(f, conf)
		if err != nil {
			slog.Fatal(err)
		}
		if u := md.Undecoded(); len(u) > 0 {
			slog.Fatalf("extra keys in %s: %v", loc, u)
		}
	}
	return conf
}

func DatabaseAddCollector(c conf.Database) {
	if c.Type != "mysql" {
		slog.Fatalf("%v: %v", "invalid Database Type", c.Type)
	}
	if c.DBName != "" {
		cleaned, _ := opentsdb.Clean(c.DBName)
		if c.DBName != cleaned {
			slog.Fatalf("%v: %v", "invalid Database DBName", c.DBName)
		}
	}
	if c.InstId < 1 {
		c.InstId = 1
	}
	if c.MaxOpenConns < 1 {
		c.MaxOpenConns = 2
	}
	if c.Username == "" {
		c.Username = "root"
	}
	if c.Protocol == "" {
		c.Protocol = "tcp"
	}
	if c.Address == "" {
		c.Address = "127.0.0.1"
	}
	if c.Port < 1 {
		c.Port = 3306
	}

	var tags opentsdb.TagSet
	if c.DBName == "" {
		tags = opentsdb.TagSet{"inst_id": strconv.Itoa(c.InstId)}
	} else {
		tags = opentsdb.TagSet{"db_name": c.DBName, "inst_id": strconv.Itoa(c.InstId)}
	}

	collectors = append(collectors, &ContinuousCollector{
		F: func(collectorStatsChan chan<- *ContinuousCollectorStats) {
			DatabaseCollect(c, collectorStatsChan)
		},
		name: c.Type,
		tags: tags,
	})
}

func main() {
	flag.Parse()
	if *flagToToml != "" {
		toToml(*flagToToml)
		fmt.Println("toml conversion complete; remove all empty values by hand (empty strings, 0)")
		return
	}
	if *flagPrint || *flagDebug {
		slog.Set(&slog.StdLog{Log: log.New(os.Stdout, "", log.LstdFlags)})
	}
	if *flagVersion {
		fmt.Println(version.GetVersionInfo("scollector"))
		os.Exit(0)
	}
	for _, m := range mains {
		m()
	}
	conf := readConf()
	if *flagHost != "" {
		conf.Host = *flagHost
	}
	if *flagFilter != "" {
		conf.Filter = strings.Split(*flagFilter, ",")
	}
	if !conf.Tags.Valid() {
		slog.Fatalf("invalid tags: %v", conf.Tags)
	} else if conf.Tags["host"] != "" {
		slog.Fatalf("host not supported in custom tags, use Hostname instead")
	}
	if conf.PProf != "" {
		go func() {
			slog.Infof("Starting pprof at http://%s/debug/pprof/", conf.PProf)
			slog.Fatal(http.ListenAndServe(conf.PProf, nil))
		}()
	}
	collectors.AddTags = conf.Tags
	util.FullHostname = conf.FullHost
	util.Set()
	if conf.Hostname != "" {
		util.Hostname = conf.Hostname
	}
	if err := collect.SetHostname(util.Hostname); err != nil {
		slog.Fatal(err)
	}
	if conf.ColDir != "" {
		collectors.InitPrograms(conf.ColDir)
	}
	var err error
	check := func(e error) {
		if e != nil {
			err = e
		}
	}
	collectors.Init(conf)
	for _, r := range conf.MetricFilters {
		check(collectors.AddMetricFilters(r))
	}
	for _, rmq := range conf.RabbitMQ {
		check(collectors.RabbitMQ(rmq.URL))
	}
	for _, cfg := range conf.SNMP {
		check(collectors.SNMP(cfg, conf.MIBS))
	}
	for _, i := range conf.ICMP {
		check(collectors.ICMP(i.Host))
	}
	for _, a := range conf.AWS {
		check(collectors.AWS(a.AccessKey, a.SecretKey, a.Region))
	}
	for _, v := range conf.Vsphere {
		check(collectors.Vsphere(v.User, v.Password, v.Host))
	}
	for _, p := range conf.Process {
		check(collectors.AddProcessConfig(p))
	}
	for _, p := range conf.ProcessDotNet {
		check(collectors.AddProcessDotNetConfig(p))
	}
	for _, h := range conf.HTTPUnit {
		if h.TOML != "" {
			check(collectors.HTTPUnitTOML(h.TOML))
		}
		if h.Hiera != "" {
			check(collectors.HTTPUnitHiera(h.Hiera))
		}
	}
	for _, r := range conf.Riak {
		check(collectors.Riak(r.URL))
	}

	for _, x := range conf.ExtraHop {
		check(collectors.ExtraHop(x.Host, x.APIKey, x.FilterBy, x.FilterPercent))
	}

	if err != nil {
		slog.Fatal(err)
	}
	collectors.KeepalivedCommunity = conf.KeepalivedCommunity
	// Add all process collectors. This is platform specific.
	collectors.WatchProcesses()
//.........这里部分代码省略.........

func toToml(fname string) {
	var c conf.Conf
	b, err := ioutil.ReadFile(*flagConf)
	if err != nil {
		slog.Fatal(err)
	}
	extra := new(bytes.Buffer)
	var hap conf.HAProxy
	for i, line := range strings.Split(string(b), "\n") {
		if strings.TrimSpace(line) == "" {
			continue
		}
		sp := strings.SplitN(line, "=", 2)
		if len(sp) != 2 {
			slog.Fatalf("expected = in %v:%v", *flagConf, i+1)
		}
		k := strings.TrimSpace(sp[0])
		v := strings.TrimSpace(sp[1])
		switch k {
		case "host":
			c.Host = v
		case "hostname":
			c.Hostname = v
		case "filter":
			c.Filter = strings.Split(v, ",")
		case "coldir":
			c.ColDir = v
		case "snmp":
			for _, s := range strings.Split(v, ",") {
				sp := strings.Split(s, "@")
				if len(sp) != 2 {
					slog.Fatal("invalid snmp string:", v)
				}
				c.SNMP = append(c.SNMP, conf.SNMP{
					Community: sp[0],
					Host:      sp[1],
				})
			}
		case "icmp":
			for _, i := range strings.Split(v, ",") {
				c.ICMP = append(c.ICMP, conf.ICMP{Host: i})
			}
		case "haproxy":
			if v != "" {
				for _, s := range strings.Split(v, ",") {
					sp := strings.SplitN(s, ":", 2)
					if len(sp) != 2 {
						slog.Fatal("invalid haproxy string:", v)
					}
					if hap.User != "" || hap.Password != "" {
						slog.Fatal("only one haproxy line allowed")
					}
					hap.User = sp[0]
					hap.Password = sp[1]
				}
			}
		case "haproxy_instance":
			sp := strings.SplitN(v, ":", 2)
			if len(sp) != 2 {
				slog.Fatal("invalid haproxy_instance string:", v)
			}
			hap.Instances = append(hap.Instances, conf.HAProxyInstance{
				Tier: sp[0],
				URL:  sp[1],
			})
		case "tags":
			tags, err := opentsdb.ParseTags(v)
			if err != nil {
				slog.Fatal(err)
			}
			c.Tags = tags
		case "aws":
			for _, s := range strings.Split(v, ",") {
				sp := strings.SplitN(s, ":", 2)
				if len(sp) != 2 {
					slog.Fatal("invalid AWS string:", v)
				}
				accessKey := sp[0]
				idx := strings.LastIndex(sp[1], "@")
				if idx == -1 {
					slog.Fatal("invalid AWS string:", v)
				}
				secretKey := sp[1][:idx]
				region := sp[1][idx+1:]
				if len(accessKey) == 0 || len(secretKey) == 0 || len(region) == 0 {
					slog.Fatal("invalid AWS string:", v)
				}
				c.AWS = append(c.AWS, conf.AWS{
					AccessKey: accessKey,
					SecretKey: secretKey,
					Region:    region,
				})
			}
		case "vsphere":
			for _, s := range strings.Split(v, ",") {
				sp := strings.SplitN(s, ":", 2)
				if len(sp) != 2 {
					slog.Fatal("invalid vsphere string:", v)
				}
				user := sp[0]
//.........这里部分代码省略.........

func main() {
	flag.Parse()
	if *flagToToml != "" {
		toToml(*flagToToml)
		fmt.Println("toml conversion complete; remove all empty values by hand (empty strings, 0)")
		return
	}
	if *flagPrint || *flagDebug {
		slog.Set(&slog.StdLog{Log: log.New(os.Stdout, "", log.LstdFlags)})
	}
	if *flagVersion {
		fmt.Println(version.GetVersionInfo("scollector"))
		os.Exit(0)
	}
	for _, m := range mains {
		m()
	}
	conf := readConf()
	ua := "Scollector/" + version.ShortVersion()
	if conf.UserAgentMessage != "" {
		ua += fmt.Sprintf(" (%s)", conf.UserAgentMessage)
	}
	client := &http.Client{
		Transport: &scollectorHTTPTransport{
			ua,
			&httpcontrol.Transport{
				RequestTimeout: time.Minute,
			},
		},
	}
	http.DefaultClient = client
	collect.DefaultClient = client
	if *flagHost != "" {
		conf.Host = *flagHost
	}
	if *flagNtlm {
		conf.UseNtlm = *flagNtlm
	}
	if *flagFilter != "" {
		conf.Filter = strings.Split(*flagFilter, ",")
	}
	if !conf.Tags.Valid() {
		slog.Fatalf("invalid tags: %v", conf.Tags)
	} else if conf.Tags["host"] != "" {
		slog.Fatalf("host not supported in custom tags, use Hostname instead")
	}
	if conf.PProf != "" {
		go func() {
			slog.Infof("Starting pprof at http://%s/debug/pprof/", conf.PProf)
			slog.Fatal(http.ListenAndServe(conf.PProf, nil))
		}()
	}
	collectors.AddTags = conf.Tags
	util.FullHostname = conf.FullHost
	util.Set()
	if conf.Hostname != "" {
		util.Hostname = conf.Hostname
	}
	if err := collect.SetHostname(util.Hostname); err != nil {
		slog.Fatal(err)
	}
	if conf.ColDir != "" {
		collectors.InitPrograms(conf.ColDir)
	}
	if conf.SNMPTimeout > 0 {
		snmp.Timeout = conf.SNMPTimeout
	}
	var err error
	check := func(e error) {
		if e != nil {
			err = e
		}
	}
	collectors.Init(conf)
	for _, r := range conf.MetricFilters {
		slog.Infof("Adding MetricFilter: %v\n", r)
		check(collectors.AddMetricFilters(r))
	}
	for _, rmq := range conf.RabbitMQ {
		check(collectors.RabbitMQ(rmq.URL))
	}
	for _, cfg := range conf.SNMP {
		check(collectors.SNMP(cfg, conf.MIBS))
	}
	for _, i := range conf.ICMP {
		check(collectors.ICMP(i.Host))
	}
	for _, a := range conf.AWS {
		check(collectors.AWS(a.AccessKey, a.SecretKey, a.Region, a.BillingProductCodesRegex, a.BillingBucketName, a.BillingBucketPath, a.BillingPurgeDays))
	}
	for _, ea := range conf.AzureEA {
		check(collectors.AzureEABilling(ea.EANumber, ea.APIKey, ea.LogBillingDetails))
	}
	for _, v := range conf.Vsphere {
		check(collectors.Vsphere(v.User, v.Password, v.Host))
	}
	for _, p := range conf.Process {
		check(collectors.AddProcessConfig(p))
	}
	for _, p := range conf.ProcessDotNet {
//.........这里部分代码省略.........

func main() {
	instanceName = os.Getenv("BOSUN_NAME")

	flag.Parse()
	if *flagVersion {
		fmt.Println(version.GetVersionInfo("bosun"))
		os.Exit(0)
	}
	for _, m := range mains {
		m()
	}
	runtime.GOMAXPROCS(runtime.NumCPU())
	c, err := conf.ParseFile(*flagConf)
	if err != nil {
		slog.Fatal(err)
	}
	if *flagTest {
		os.Exit(0)
	}
	httpListen := &url.URL{
		Scheme: "http",
		Host:   c.HTTPListen,
	}
	if strings.HasPrefix(httpListen.Host, ":") {
		httpListen.Host = "localhost" + httpListen.Host
	}
	if err := metadata.Init(httpListen, false); err != nil {
		slog.Fatal(err)
	}
	if err := sched.Load(c); err != nil {
		slog.Fatal(err)
	}
	if c.RelayListen != "" {
		go func() {
			mux := http.NewServeMux()
			mux.Handle("/api/", util.NewSingleHostProxy(httpListen))
			s := &http.Server{
				Addr:    c.RelayListen,
				Handler: mux,
			}
			slog.Fatal(s.ListenAndServe())
		}()
	}
	if c.TSDBHost != "" {
		if err := collect.Init(httpListen, "bosun"); err != nil {
			slog.Fatal(err)
		}
		tsdbHost := &url.URL{
			Scheme: "http",
			Host:   c.TSDBHost,
		}
		if *flagReadonly {
			rp := util.NewSingleHostProxy(tsdbHost)
			ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				if r.URL.Path == "/api/put" {
					w.WriteHeader(204)
					return
				}
				rp.ServeHTTP(w, r)
			}))
			slog.Infoln("readonly relay at", ts.URL, "to", tsdbHost)
			tsdbHost, _ = url.Parse(ts.URL)
			c.TSDBHost = tsdbHost.Host
		}
	}
	if c.InternetProxy != "" {
		web.InternetProxy, err = url.Parse(c.InternetProxy)
		if err != nil {
			slog.Fatalf("InternetProxy error: %s", err)
		}
	}
	if *flagQuiet {
		c.Quiet = true
	}
	go func() { slog.Fatal(web.Listen(c.HTTPListen, *flagDev, c.TSDBHost)) }()
	go func() {
		if !*flagNoChecks {
			sched.Run()
		}
	}()
	go func() {
		sc := make(chan os.Signal, 1)
		signal.Notify(sc, os.Interrupt, syscall.SIGTERM)
		killing := false
		for range sc {
			if killing {
				slog.Infoln("Second interrupt: exiting")
				os.Exit(1)
			}
			killing = true
			go func() {
				slog.Infoln("Interrupt: closing down...")
				sched.Close()
				slog.Infoln("done")
				os.Exit(1)
			}()
		}
	}()
	if *flagWatch {
		watch(".", "*.go", quit)
//.........这里部分代码省略.........

func main() {
	flag.Parse()
	if *flagToToml != "" {
		toToml(*flagToToml)
		fmt.Println("toml conversion complete; remove all empty values by hand (empty strings, 0)")
		return
	}
	if *flagPrint || *flagDebug {
		slog.Set(&slog.StdLog{Log: log.New(os.Stdout, "", log.LstdFlags)})
	}
	if *flagVersion {
		fmt.Println(version.GetVersionInfo("scollector"))
		os.Exit(0)
	}
	for _, m := range mains {
		m()
	}
	conf := readConf()
	if *flagHost != "" {
		conf.Host = *flagHost
	}
	if *flagFilter != "" {
		conf.Filter = strings.Split(*flagFilter, ",")
	}
	if !conf.Tags.Valid() {
		slog.Fatalf("invalid tags: %v", conf.Tags)
	} else if conf.Tags["host"] != "" {
		slog.Fatalf("host not supported in custom tags, use Hostname instead")
	}
	collectors.AddTags = conf.Tags
	util.FullHostname = conf.FullHost
	util.Set()
	if conf.Hostname != "" {
		util.Hostname = conf.Hostname
		if err := collect.SetHostname(conf.Hostname); err != nil {
			slog.Fatal(err)
		}
	}
	if conf.ColDir != "" {
		collectors.InitPrograms(conf.ColDir)
	}
	var err error
	check := func(e error) {
		if e != nil {
			err = e
		}
	}
	for _, h := range conf.HAProxy {
		for _, i := range h.Instances {
			collectors.HAProxy(h.User, h.Password, i.Tier, i.URL)
		}
	}
	for _, s := range conf.SNMP {
		check(collectors.SNMP(s.Community, s.Host))
	}
	for _, i := range conf.ICMP {
		check(collectors.ICMP(i.Host))
	}
	for _, a := range conf.AWS {
		check(collectors.AWS(a.AccessKey, a.SecretKey, a.Region))
	}
	for _, v := range conf.Vsphere {
		check(collectors.Vsphere(v.User, v.Password, v.Host))
	}
	for _, p := range conf.Process {
		check(collectors.AddProcessConfig(p))
	}
	for _, h := range conf.HTTPUnit {
		if h.TOML != "" {
			check(collectors.HTTPUnitTOML(h.TOML))
		}
		if h.Hiera != "" {
			check(collectors.HTTPUnitHiera(h.Hiera))
		}
	}
	if err != nil {
		slog.Fatal(err)
	}
	collectors.KeepalivedCommunity = conf.KeepalivedCommunity
	// Add all process collectors. This is platform specific.
	collectors.WatchProcesses()
	collectors.WatchProcessesDotNet()

	if *flagFake > 0 {
		collectors.InitFake(*flagFake)
	}
	collect.Debug = *flagDebug
	util.Debug = *flagDebug
	collect.DisableDefaultCollectors = conf.DisableSelf
	c := collectors.Search(conf.Filter)
	if len(c) == 0 {
		slog.Fatalf("Filter %v matches no collectors.", conf.Filter)
	}
	for _, col := range c {
		col.Init()
	}
	u, err := parseHost(conf.Host)
	if *flagList {
		list(c)
		return
//.........这里部分代码省略.........