Add metrics

cmd/bailiff/main.go

@@ -13,6 +13,7 @@ import (
 	"github.com/ethereum-optimism/optimism/op-service/ctxinterrupt"
 	"github.com/ethereum-optimism/optimism/op-service/httputil"
 	oplog "github.com/ethereum-optimism/optimism/op-service/log"
+	opmetrics "github.com/ethereum-optimism/optimism/op-service/metrics"
 	"github.com/google/go-github/v66/github"
 	"github.com/urfave/cli/v2"
 )
@@ -61,12 +62,12 @@ var (
 	}
 )
 
-var GlobalFlags = append([]cli.Flag{
+var GlobalFlags = []cli.Flag{
 	ConfigPathFlag,
 	WebhookSecretFlag,
 	GithubTokenFlag,
 	PrivateKeyFileFlag,
-}, oplog.CLIFlags(EnvVarPrefix)...)
+}
 
 func main() {
 	app := cli.NewApp()
@@ -118,22 +119,42 @@ func main() {
 
 		ctx, cancel := context.WithCancel(cliCtx.Context)
 		defer cancel()
+
+		metricsCfg := opmetrics.ReadCLIConfig(cliCtx)
+		if metricsCfg.Enabled {
+			metricsSrv, err := opmetrics.StartServer(bailiff.MetricsRegistry, metricsCfg.ListenAddr, metricsCfg.ListenPort)
+			if err != nil {
+				return fmt.Errorf("failed to start metrics server: %w", err)
+			}
+			defer func() {
+				if err := metricsSrv.Stop(context.Background()); err != nil {
+					l.Error("failed to stop metrics server", "err", err)
+				}
+			}()
+
+			l.Info("metrics server is running", "addr", metricsCfg.ListenAddr)
+		}
+
 		httpSrv, err := httputil.StartHTTPServer(cfg.ListenAddr, srv)
 		if err != nil {
 			return fmt.Errorf("failed to start HTTP server: %w", err)
 		}
 
 		defer func() {
-			if err := httpSrv.Stop(ctx); err != nil {
+			if err := httpSrv.Stop(context.Background()); err != nil {
 				l.Error("failed to stop DA server", "err", err)
 			}
 		}()
 
 		l.Info("bailiff is running", "addr", cfg.ListenAddr)
-
 		return ctxinterrupt.Wait(ctx)
 	}
 	if err := app.Run(os.Args); err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Application failed: %v\n", err)
 	}
 }
+
+func init() {
+	GlobalFlags = append(GlobalFlags, oplog.CLIFlags(EnvVarPrefix)...)
+	GlobalFlags = append(GlobalFlags, opmetrics.CLIFlags(EnvVarPrefix)...)
+}

go.mod

@@ -9,31 +9,73 @@ require (
 	github.com/google/go-github/v66 v66.0.0
 	github.com/gorilla/mux v1.8.0
 	github.com/migueleliasweb/go-github-mock v1.0.1
+	github.com/prometheus/client_golang v1.20.5
 	github.com/stretchr/testify v1.9.0
 	github.com/urfave/cli/v2 v2.27.4
 )
 
 require (
+	github.com/DataDog/zstd v1.5.6-0.20230824185856-869dae002e5e // indirect
 	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/bits-and-blooms/bitset v1.13.0 // indirect
+	github.com/btcsuite/btcd/btcec/v2 v2.3.4 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/cockroachdb/errors v1.11.3 // indirect
+	github.com/cockroachdb/fifo v0.0.0-20240606204812-0bbfbd93a7ce // indirect
+	github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b // indirect
+	github.com/cockroachdb/pebble v1.1.2 // indirect
+	github.com/cockroachdb/redact v1.1.5 // indirect
+	github.com/cockroachdb/tokenbucket v0.0.0-20230807174530-cc333fc44b06 // indirect
+	github.com/consensys/bavard v0.1.13 // indirect
+	github.com/consensys/gnark-crypto v0.12.1 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.4 // indirect
+	github.com/crate-crypto/go-ipa v0.0.0-20240223125850-b1e8a79f509c // indirect
+	github.com/crate-crypto/go-kzg-4844 v1.0.0 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/deckarep/golang-set/v2 v2.6.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
+	github.com/ethereum/c-kzg-4844 v1.0.0 // indirect
+	github.com/ethereum/go-verkle v0.1.1-0.20240829091221-dffa7562dbe9 // indirect
+	github.com/getsentry/sentry-go v0.27.0 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
+	github.com/gofrs/flock v0.8.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb // indirect
 	github.com/google/go-github/v64 v64.0.0 // indirect
 	github.com/google/go-querystring v1.1.0 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
 	github.com/holiman/uint256 v1.3.1 // indirect
+	github.com/klauspost/compress v1.17.9 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/mmcloughlin/addchain v0.4.0 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/olekukonko/tablewriter v0.0.5 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
+	github.com/prometheus/common v0.55.0 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/rivo/uniseg v0.4.4 // indirect
+	github.com/rogpeppe/go-internal v1.11.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
+	github.com/supranational/blst v0.3.13 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20220614013038-64ee5596c38a // indirect
 	github.com/tklauser/go-sysconf v0.3.12 // indirect
 	github.com/tklauser/numcpus v0.6.1 // indirect
 	github.com/xrash/smetrics v0.0.0-20240521201337-686a1a2994c1 // indirect
 	github.com/yusufpapurcu/wmi v1.2.3 // indirect
 	golang.org/x/crypto v0.27.0 // indirect
 	golang.org/x/exp v0.0.0-20240808152545-0cdaa3abc0fa // indirect
+	golang.org/x/sync v0.8.0 // indirect
 	golang.org/x/sys v0.25.0 // indirect
 	golang.org/x/term v0.24.0 // indirect
+	golang.org/x/text v0.18.0 // indirect
 	golang.org/x/time v0.6.0 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	rsc.io/tmplfunc v0.0.3 // indirect
 )