|
| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "os" |
| 6 | + runtimeDebug "runtime/debug" |
| 7 | + "time" |
| 8 | + |
| 9 | + joonix "github.com/joonix/log" |
| 10 | + "github.com/prysmaticlabs/prysm/cmd/client-stats/flags" |
| 11 | + "github.com/prysmaticlabs/prysm/shared/clientstats" |
| 12 | + "github.com/prysmaticlabs/prysm/shared/cmd" |
| 13 | + "github.com/prysmaticlabs/prysm/shared/journald" |
| 14 | + "github.com/prysmaticlabs/prysm/shared/logutil" |
| 15 | + "github.com/prysmaticlabs/prysm/shared/version" |
| 16 | + "github.com/sirupsen/logrus" |
| 17 | + "github.com/urfave/cli/v2" |
| 18 | + prefixed "github.com/x-cray/logrus-prefixed-formatter" |
| 19 | +) |
| 20 | + |
| 21 | +var appFlags = []cli.Flag{ |
| 22 | + cmd.VerbosityFlag, |
| 23 | + cmd.LogFormat, |
| 24 | + cmd.LogFileName, |
| 25 | + cmd.ConfigFileFlag, |
| 26 | + flags.BeaconnodeMetricsURLFlag, |
| 27 | + flags.ValidatorMetricsURLFlag, |
| 28 | + flags.ClientStatsAPIURLFlag, |
| 29 | + flags.ScrapeIntervalFlag, |
| 30 | +} |
| 31 | +var scrapeInterval = 60 * time.Second |
| 32 | + |
| 33 | +func main() { |
| 34 | + app := cli.App{} |
| 35 | + app.Name = "client-stats" |
| 36 | + app.Usage = "daemon to scrape client-stats from prometheus and ship to a remote endpoint" |
| 37 | + app.Action = run |
| 38 | + app.Version = version.Version() |
| 39 | + |
| 40 | + app.Flags = appFlags |
| 41 | + |
| 42 | + // logging/config setup cargo-culted from beaconchain |
| 43 | + app.Before = func(ctx *cli.Context) error { |
| 44 | + // Load flags from config file, if specified. |
| 45 | + if err := cmd.LoadFlagsFromConfig(ctx, app.Flags); err != nil { |
| 46 | + return err |
| 47 | + } |
| 48 | + |
| 49 | + verbosity := ctx.String(cmd.VerbosityFlag.Name) |
| 50 | + level, err := logrus.ParseLevel(verbosity) |
| 51 | + if err != nil { |
| 52 | + return err |
| 53 | + } |
| 54 | + logrus.SetLevel(level) |
| 55 | + |
| 56 | + format := ctx.String(cmd.LogFormat.Name) |
| 57 | + switch format { |
| 58 | + case "text": |
| 59 | + formatter := new(prefixed.TextFormatter) |
| 60 | + formatter.TimestampFormat = "2006-01-02 15:04:05" |
| 61 | + formatter.FullTimestamp = true |
| 62 | + // If persistent log files are written - we disable the log messages coloring because |
| 63 | + // the colors are ANSI codes and seen as gibberish in the log files. |
| 64 | + formatter.DisableColors = ctx.String(cmd.LogFileName.Name) != "" |
| 65 | + logrus.SetFormatter(formatter) |
| 66 | + case "fluentd": |
| 67 | + f := joonix.NewFormatter() |
| 68 | + if err := joonix.DisableTimestampFormat(f); err != nil { |
| 69 | + panic(err) |
| 70 | + } |
| 71 | + logrus.SetFormatter(f) |
| 72 | + case "json": |
| 73 | + logrus.SetFormatter(&logrus.JSONFormatter{}) |
| 74 | + case "journald": |
| 75 | + if err := journald.Enable(); err != nil { |
| 76 | + return err |
| 77 | + } |
| 78 | + default: |
| 79 | + return fmt.Errorf("unknown log format %s", format) |
| 80 | + } |
| 81 | + |
| 82 | + logFileName := ctx.String(cmd.LogFileName.Name) |
| 83 | + if logFileName != "" { |
| 84 | + if err := logutil.ConfigurePersistentLogging(logFileName); err != nil { |
| 85 | + log.WithError(err).Error("Failed to configuring logging to disk.") |
| 86 | + } |
| 87 | + } |
| 88 | + return nil |
| 89 | + } |
| 90 | + |
| 91 | + defer func() { |
| 92 | + if x := recover(); x != nil { |
| 93 | + log.Errorf("Runtime panic: %v\n%v", x, string(runtimeDebug.Stack())) |
| 94 | + panic(x) |
| 95 | + } |
| 96 | + }() |
| 97 | + |
| 98 | + if err := app.Run(os.Args); err != nil { |
| 99 | + log.Error(err.Error()) |
| 100 | + } |
| 101 | +} |
| 102 | + |
| 103 | +func run(ctx *cli.Context) error { |
| 104 | + if ctx.IsSet(flags.ScrapeIntervalFlag.Name) { |
| 105 | + scrapeInterval = ctx.Duration(flags.ScrapeIntervalFlag.Name) |
| 106 | + } |
| 107 | + |
| 108 | + var upd clientstats.Updater |
| 109 | + if ctx.IsSet(flags.ClientStatsAPIURLFlag.Name) { |
| 110 | + u := ctx.String(flags.ClientStatsAPIURLFlag.Name) |
| 111 | + upd = clientstats.NewClientStatsHTTPPostUpdater(u) |
| 112 | + } else { |
| 113 | + log.Warn("No --clientstats-api-url flag set, writing to stdout as default metrics sink.") |
| 114 | + upd = clientstats.NewGenericClientStatsUpdater(os.Stdout) |
| 115 | + } |
| 116 | + |
| 117 | + scrapers := make([]clientstats.Scraper, 0) |
| 118 | + if ctx.IsSet(flags.BeaconnodeMetricsURLFlag.Name) { |
| 119 | + u := ctx.String(flags.BeaconnodeMetricsURLFlag.Name) |
| 120 | + scrapers = append(scrapers, clientstats.NewBeaconNodeScraper(u)) |
| 121 | + } |
| 122 | + if ctx.IsSet(flags.ValidatorMetricsURLFlag.Name) { |
| 123 | + u := ctx.String(flags.ValidatorMetricsURLFlag.Name) |
| 124 | + scrapers = append(scrapers, clientstats.NewValidatorScraper(u)) |
| 125 | + } |
| 126 | + |
| 127 | + ticker := time.NewTicker(scrapeInterval) |
| 128 | + for { |
| 129 | + select { |
| 130 | + case <-ticker.C: |
| 131 | + for _, s := range scrapers { |
| 132 | + r, err := s.Scrape() |
| 133 | + if err != nil { |
| 134 | + log.Errorf("Scraper error: %s", err) |
| 135 | + continue |
| 136 | + } |
| 137 | + err = upd.Update(r) |
| 138 | + if err != nil { |
| 139 | + log.Errorf("client-stats collector error: %s", err) |
| 140 | + continue |
| 141 | + } |
| 142 | + } |
| 143 | + case <-ctx.Done(): |
| 144 | + ticker.Stop() |
| 145 | + return nil |
| 146 | + } |
| 147 | + } |
| 148 | +} |
0 commit comments