feat(dot/babe) implement block production time metric

docker-compose.yml

@@ -0,0 +1,15 @@
+version:  '3.7'
+
+services: 
+    prometheus:
+        image: prom/prometheus
+        volumes:
+        - ./prometheus.yml:/etc/prometheus/prometheus.yml
+        command:
+        - '--config.file=/etc/prometheus/prometheus.yml'
+        - '--storage.tsdb.path=/prometheus'
+        - '--web.console.libraries=/usr/share/prometheus/console_libraries'
+        - '--web.console.templates=/usr/share/prometheus/consoles'
+        ports:
+        - 9090:9090
+        restart: always

docs/docs/integrate/using-prometheus.md

@@ -0,0 +1,29 @@
+---
+layout: default
+title: Using Prometheus
+permalink: /integrate/using-prometheus/
+---
+
+# Using Prometheus Locally
+
+To get started with Prometheus locally make sure you have installed [Docker](https://docs.docker.com/engine/install/) and [Docker Compose](https://docs.docker.com/compose/install/).
+
+The docker-compose.yml file has, currently, the Prometheus to collect metrics, so to start that service you can execute (in the project root folder):
+
+```
+docker-compose up (-d to disatach the terminal)
+
+or
+
+docker-compose up prometheus (-d to disatach the terminal)
+```
+
+the above command will starts the Prometheus service on `0.0.0.0:9090`.
+
+### Prometheus
+
+Actually the Prometheus service reads a file `prometheus.yml` placed in the root level project folder, this file contains the definitions that Prometheus needs to collect the metrics. 
+
+Linux: In the **job_name == gossamer** the **targets** property should be `[localhost:9876]`
+
+To publish metrics from the node use the flag **--publish-metrics**; i.e, `./bin/gossamer --chain {chain} --key {key} --publish-metrics`

dot/metrics/metrics.go

@@ -15,7 +15,6 @@ const (
 
 // CollectProcessMetrics periodically collects various metrics about the running process.
 func CollectProcessMetrics() {
-	metrics.Enabled = true
 	// Create the various data collectors
 	cpuStats := make([]*metrics.CPUStats, 2)
 	memStats := make([]*runtime.MemStats, 2)

dot/network/discovery.go

@@ -21,6 +21,7 @@ import (
 	"fmt"
 	"time"
 
+	ethmetrics "github.com/ethereum/go-ethereum/metrics"
 	badger "github.com/ipfs/go-ds-badger2"
 	libp2phost "github.com/libp2p/go-libp2p-core/host"
 	"github.com/libp2p/go-libp2p-core/peer"
@@ -31,6 +32,11 @@ import (
 	"github.com/libp2p/go-libp2p-kad-dht/dual"
 )
 
+const (
+	checkPeerCountMetrics = "gossamer/network/peer_count"
+	peersStoreMetrics     = "gossamer/network/peerstore_count"
+)
+
 var (
 	startDHTTimeout             = time.Second * 10
 	initialAdvertisementTimeout = time.Millisecond
@@ -115,6 +121,9 @@ func (d *discovery) stop() error {
 		return nil
 	}
 
+	ethmetrics.Unregister(checkPeerCountMetrics)
+	ethmetrics.Unregister(peersStoreMetrics)
+
 	return d.dht.Close()
 }
 

dot/network/discovery_test.go

@@ -213,4 +213,5 @@ func TestBeginDiscovery_ThreeNodes(t *testing.T) {
 	// assert B and C can discover each other
 	addrs := nodeB.host.h.Peerstore().Addrs(nodeC.host.id())
 	require.NotEqual(t, 0, len(addrs))
+
 }

dot/network/service.go

@@ -275,7 +275,6 @@ func (s *Service) Start() error {
 }
 
 func (s *Service) collectNetworkMetrics() {
-	metrics.Enabled = true
 	for {
 		peerCount := metrics.GetOrRegisterGauge("network/node/peerCount", metrics.DefaultRegistry)
 		totalConn := metrics.GetOrRegisterGauge("network/node/totalConnection", metrics.DefaultRegistry)

dot/node.go

@@ -361,6 +361,7 @@ func NewNode(cfg *Config, ks *keystore.GlobalKeystore, stopFunc func()) (*Node,
 }
 
 func publishMetrics(cfg *Config) {
+	metrics.Enabled = true
 	address := fmt.Sprintf("%s:%d", cfg.RPC.Host, cfg.Global.MetricsPort)
 	log.Info("Enabling stand-alone metrics HTTP endpoint", "address", address)
 	setupMetricsServer(address)

go.mod

@@ -10,18 +10,16 @@ require (
 	github.com/centrifuge/go-substrate-rpc-client/v2 v2.0.1
 	github.com/chyeh/pubip v0.0.0-20170203095919-b7e679cf541c
 	github.com/cosmos/go-bip39 v1.0.0
-	github.com/davidlazar/go-crypto v0.0.0-20190912175916-7055855a373f // indirect
 	github.com/dgraph-io/badger/v2 v2.2007.2
 	github.com/dgraph-io/ristretto v0.0.3-0.20200630154024-f66de99634de
 	github.com/disiqueira/gotree v1.0.0
 	github.com/docker/docker v1.13.1
 	github.com/elastic/gosigar v0.14.0 // indirect
 	github.com/ethereum/go-ethereum v1.9.7
 	github.com/go-playground/validator/v10 v10.4.1
-	github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7 // indirect
 	github.com/golang/protobuf v1.4.3
 	github.com/golang/snappy v0.0.3-0.20201103224600-674baa8c7fc3 // indirect
-	github.com/google/go-cmp v0.5.6 // indirect
+	github.com/google/go-cmp v0.5.6
 	github.com/google/uuid v1.1.5 // indirect
 	github.com/gorilla/mux v1.7.4
 	github.com/gorilla/rpc v1.2.0
@@ -35,13 +33,12 @@ require (
 	github.com/jpillora/backoff v1.0.0 // indirect
 	github.com/jpillora/ipfilter v1.2.2
 	github.com/kylelemons/godebug v1.1.0 // indirect
-	github.com/libp2p/go-libp2p v0.12.0
-	github.com/libp2p/go-libp2p-core v0.7.0
+	github.com/libp2p/go-libp2p v0.14.2
+	github.com/libp2p/go-libp2p-core v0.8.5
 	github.com/libp2p/go-libp2p-discovery v0.5.0
 	github.com/libp2p/go-libp2p-kad-dht v0.11.1
-	github.com/libp2p/go-libp2p-peerstore v0.2.6
+	github.com/libp2p/go-libp2p-peerstore v0.2.7
 	github.com/libp2p/go-libp2p-secio v0.2.2
-	github.com/libp2p/go-sockaddr v0.1.0 // indirect
 	github.com/mattn/go-colorable v0.1.4 // indirect
 	github.com/mattn/go-isatty v0.0.11 // indirect
 	github.com/multiformats/go-multiaddr v0.3.1
@@ -54,13 +51,11 @@ require (
 	github.com/syndtr/goleveldb v1.0.1-0.20200815110645-5c35d600f0ca // indirect
 	github.com/urfave/cli v1.20.0
 	github.com/wasmerio/go-ext-wasm v0.3.2-0.20200326095750-0a32be6068ec
-	go.opencensus.io v0.22.5 // indirect
-	golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad
-	golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f // indirect
-	golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c // indirect
-	golang.org/x/term v0.0.0-20201117132131-f5c789dd3221
+	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2
+	golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40 // indirect
+	golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1
 	google.golang.org/appengine v1.6.5 // indirect
-	google.golang.org/protobuf v1.25.0
+	google.golang.org/protobuf v1.26.0-rc.1
 )
 
 go 1.15