cometbft · hvanz · Feb 24, 2023 · Feb 10, 2023 · Feb 10, 2023 · Feb 10, 2023
@@ -65,6 +65,9 @@ services:
     ports:
     - 26656
     - {{ if .ProxyPort }}{{ .ProxyPort }}:{{ end }}26657
+{{- if .PrometheusProxyPort }}
+    - {{ .PrometheusProxyPort }}:26660
+{{- end }}
     - 6060
     volumes:
     - ./{{ .Name }}:/cometbft
@@ -86,6 +89,9 @@ services:
     ports:
     - 26656
     - {{ if .ProxyPort }}{{ .ProxyPort }}:{{ end }}26657
+{{- if .PrometheusProxyPort }}
+    - {{ .PrometheusProxyPort }}:26660
+{{- end }}
     - 6060
     volumes:
     - ./{{ .Name }}:/cometbft

@@ -82,6 +82,10 @@ type Manifest struct {
    	LoadTxSizeBytes   int `toml:"load_tx_size_bytes"`
 	LoadTxBatchSize   int `toml:"load_tx_batch_size"`
 	LoadTxConnections int `toml:"load_tx_connections"`
+
+	// Enable or disable Prometheus metrics on all nodes.
+	// Defaults to false (disabled).
+	Prometheus bool `toml:"prometheus"`
 }
 
 // ManifestNode represents a node in a testnet manifest.

@@ -19,8 +19,9 @@ import (
 )
 
 const (
-	randomSeed     int64  = 2308084734268
-	proxyPortFirst uint32 = 5701
+	randomSeed               int64  = 2308084734268
+	proxyPortFirst           uint32 = 5701
+	prometheusProxyPortFirst uint32 = 6701
 
 	defaultBatchSize   = 2
 	defaultConnections = 1
@@ -79,33 +80,34 @@ type Testnet struct {
 	ProcessProposalDelay time.Duration
 	CheckTxDelay         time.Duration
 	UpgradeVersion       string
+	Prometheus           bool
 }
 
 // Node represents a CometBFT node in a testnet.
 type Node struct {
-	Name             string
-	Version          string
-	Testnet          *Testnet
-	Mode             Mode
-	PrivvalKey       crypto.PrivKey
-	NodeKey          crypto.PrivKey
-	IP               net.IP
-	ProxyPort        uint32
-	StartAt          int64
-	BlockSync        string
-	StateSync        bool
-	Database         string
-	ABCIProtocol     Protocol
-	PrivvalProtocol  Protocol
-	PersistInterval  uint64
-	SnapshotInterval uint64
-	RetainBlocks     uint64
-	Seeds            []*Node
-	PersistentPeers  []*Node
-	Perturbations    []Perturbation
-
-	// SendNoLoad determines if the e2e test should send load to this node.
-	SendNoLoad bool
+	Name                string
+	Version             string
+	Testnet             *Testnet
+	Mode                Mode
+	PrivvalKey          crypto.PrivKey
+	NodeKey             crypto.PrivKey
+	IP                  net.IP
+	ProxyPort           uint32
+	StartAt             int64
+	BlockSync           string
+	StateSync           bool
+	Database            string
+	ABCIProtocol        Protocol
+	PrivvalProtocol     Protocol
+	PersistI
8000
nterval     uint64
+	SnapshotInterval    uint64
+	RetainBlocks        uint64
+	Seeds               []*Node
+	PersistentPeers     []*Node
+	Perturbations       []Perturbation
+	SendNoLoad          bool
+	Prometheus          bool
+	PrometheusProxyPort uint32
 }
 
 // LoadTestnet loads a testnet from a manifest file, using the filename to
@@ -117,6 +119,7 @@ func LoadTestnet(manifest Manifest, fname string, ifd InfrastructureData) (*Test
 	dir := strings.TrimSuffix(fname, filepath.Ext(fname))
 	keyGen := newKeyGenerator(randomSeed)
 	proxyPortGen := newPortGenerator(proxyPortFirst)
+	prometheusProxyPortGen := newPortGenerator(prometheusProxyPortFirst)
 	_, ipNet, err := net.ParseCIDR(ifd.Network)
 	if err != nil {
 		return nil, fmt.Errorf("invalid IP network address %q: %w", ifd.Network, err)
@@ -141,6 +144,7 @@ func LoadTestnet(manifest Manifest, fname string, ifd InfrastructureData) (*Test
 		ProcessProposalDelay: manifest.ProcessProposalDelay,
 		CheckTxDelay:         manifest.CheckTxDelay,
 		UpgradeVersion:       manifest.UpgradeVersion,
+		Prometheus:           manifest.Prometheus,
 	}
 	if len(manifest.KeyType) != 0 {
 		testnet.KeyType = manifest.KeyType
@@ -202,6 +206,7 @@ func LoadTestnet(manifest Manifest, fname string, ifd InfrastructureData) (*Test
 			RetainBlocks:     nodeManifest.RetainBlocks,
 			Perturbations:    []Perturbation{},
 			SendNoLoad:       nodeManifest.SendNoLoad,
+			Prometheus:       testnet.Prometheus,
 		}
 		if node.StartAt == testnet.InitialHeight {
 			node.StartAt = 0 // normalize to 0 for initial nodes, since code expects this
@@ -221,6 +226,9 @@ func LoadTestnet(manifest Manifest, fname string, ifd InfrastructureData) (*Test
 		if nodeManifest.PersistInterval != nil {
 			node.PersistInterval = *nodeManifest.PersistInterval
 		}
+		if node.Prometheus {
+			node.PrometheusProxyPort = prometheusProxyPortGen.Next()
+		}
 		for _, p := range nodeManifest.Perturb {
 			node.Perturbations = append(node.Perturbations, Perturbation(p))
 		}
@@ -327,13 +335,22 @@ func (n Node) Validate(testnet Testnet) error {
 	if !testnet.IP.Contains(n.IP) {
 		return fmt.Errorf("node IP %v is not in testnet network %v", n.IP, testnet.IP)
 	}
-	if n.ProxyPort > 0 {
-		if n.ProxyPort <= 1024 {
-			return fmt.Errorf("local port %v must be >1024", n.ProxyPort)
+	if n.ProxyPort == n.PrometheusProxyPort {
+		return fmt.Errorf("node local port %v used also for Prometheus local port", n.ProxyPort)
+	}
+	if n.ProxyPort > 0 && n.ProxyPort <= 1024 {
+		return fmt.Errorf("local port %v must be >1024", n.ProxyPort)
+	}
+	if n.PrometheusProxyPort > 0 && n.PrometheusProxyPort <= 1024 {
+		return fmt.Errorf("local port %v must be >1024", n.PrometheusProxyPort)
+	}
+	for _, peer := range testnet.Nodes {
+		if peer.Name != n.Name && peer.ProxyPort == n.ProxyPort {
+			return fmt.Errorf("peer %q also has local port %v", peer.Name, n.ProxyPort)
 		}
-		for _, peer := range testnet.Nodes {
-			if peer.Name != n.Name && peer.ProxyPort == n.ProxyPort {
-				return fmt.Errorf("peer %q also has local port %v", peer.Name, n.ProxyPort)
+		if n.PrometheusProxyPort > 0 {
+			if peer.Name != n.Name && peer.PrometheusProxyPort == n.PrometheusProxyPort {
+				return fmt.Errorf("peer %q also has local port %v", peer.Name, n.PrometheusProxyPort)
 			}
 		}
 	}

@@ -243,6 +243,11 @@ func MakeConfig(node *e2e.Node) (*config.Config, error) {
 		}
 		cfg.P2P.PersistentPeers += peer.AddressP2P(true)
 	}
+
+	if node.Prometheus {
+		cfg.Instrumentation.Prometheus = true
+	}
+
 	return cfg, nil
 }
 

@@ -49,7 +49,11 @@ func Start(testnet *e2e.Testnet) error {
 		if _, err := waitForNode(node, 0, 15*time.Second); err != nil {
 			return err
 		}
-		logger.Info("start", "msg", log.NewLazySprintf("Node %v up on http://127.0.0.1:%v", node.Name, node.ProxyPort))
+		if node.PrometheusProxyPort > 0 {
+			logger.Info("start", "msg", log.NewLazySprintf("Node %v up on http://127.0.0.1:%v; with Prometheus on http://127.0.0.1:%v/metrics", node.Name, node.ProxyPort, node.PrometheusProxyPort))
+		} else {
+			logger.Info("start", "msg", log.NewLazySprintf("Node %v up on http://127.0.0.1:%v", node.Name, node.ProxyPort))
+		}
 	}
 
 	networkHeight := testnet.InitialHeight