Introduced additional identity label to metrics.

cmd/solana_exporter/exporter.go

@@ -20,6 +20,7 @@ const (
 	VersionLabel    = "version"
 	AddressLabel    = "address"
 	EpochLabel      = "epoch"
+	IdentityLabel   = "identity"
 
 	StatusSkipped = "skipped"
 	StatusValid   = "valid"
@@ -38,6 +39,7 @@ type SolanaCollector struct {
 	// config:
 	slotPace         time.Duration
 	balanceAddresses []string
+	identity         *string
 
 	/// descriptors:
 	totalValidatorsDesc     *prometheus.Desc
@@ -51,13 +53,12 @@ type SolanaCollector struct {
 	numSlotsBehind          *prometheus.Desc
 }
 
-func NewSolanaCollector(
+func NewSolanaCollector(provider rpc.Provider, slotPace time.Duration, balanceAddresses []string, nodekeys []string, votekeys []string, identity *string) *SolanaCollector {
-	provider rpc.Provider, slotPace time.Duration, balanceAddresses []string, nodekeys []string, votekeys []string,
-) *SolanaCollector {
 	collector := &SolanaCollector{
 		rpcClient:        provider,
 		slotPace:         slotPace,
 		balanceAddresses: CombineUnique(balanceAddresses, nodekeys, votekeys),
+		identity:         identity,
 		totalValidatorsDesc: prometheus.NewDesc(
 			"solana_active_validators",
 			"Total number of active validators by state",
@@ -103,13 +104,13 @@ func NewSolanaCollector(
 		isHealthy: prometheus.NewDesc(
 			"solana_is_healthy",
 			"Whether the node is healthy or not.",
-			nil,
+			[]string{IdentityLabel},
 			nil,
 		),
 		numSlotsBehind: prometheus.NewDesc(
 			"solana_num_slots_behind",
 			"The number of slots that the node is behind the latest cluster confirmed slot.",
-			nil,
+			[]string{IdentityLabel},
 			nil,
 		),
 	}
@@ -241,8 +242,8 @@ func (c *SolanaCollector) collectHealth(ctx context.Context, ch chan<- prometheu
 		}
 	}
 
-	ch <- prometheus.MustNewConstMetric(c.isHealthy, prometheus.GaugeValue, float64(isHealthy))
+	ch <- prometheus.MustNewConstMetric(c.isHealthy, prometheus.GaugeValue, float64(isHealthy), *c.identity)
-	ch <- prometheus.MustNewConstMetric(c.numSlotsBehind, prometheus.GaugeValue, float64(numSlotsBehind))
+	ch <- prometheus.MustNewConstMetric(c.numSlotsBehind, prometheus.GaugeValue, float64(numSlotsBehind), *c.identity)
 
 	return
 }
@@ -273,8 +274,11 @@ func main() {
 	if err != nil {
 		klog.Fatalf("Failed to get associated vote accounts for %v: %v", config.NodeKeys, err)
 	}
-
+	identity, err := client.GetIdentity(ctx)
-	collector := NewSolanaCollector(client, slotPacerSchedule, config.BalanceAddresses, config.NodeKeys, votekeys)
+	if err != nil {
+		klog.Fatalf("Failed to get identity: %v", err)
+	}
+	collector := NewSolanaCollector(client, slotPacerSchedule, config.BalanceAddresses, config.NodeKeys, votekeys, identity)
 	slotWatcher := NewSlotWatcher(
 		client, config.NodeKeys, votekeys, config.ComprehensiveSlotTracking, config.MonitorBlockSizes,
 	)

cmd/solana_exporter/exporter_test.go

@@ -43,6 +43,7 @@ type (
 var (
 	identities      = []string{"aaa", "bbb", "ccc"}
 	votekeys        = []string{"AAA", "BBB", "CCC"}
+	identity        = "aaa"
 	balances        = map[string]float64{"aaa": 1, "bbb": 2, "ccc": 3, "AAA": 4, "BBB": 5, "CCC": 6}
 	identityVotes   = map[string]string{"aaa": "AAA", "bbb": "BBB", "ccc": "CCC"}
 	nv              = len(identities)
@@ -420,7 +421,7 @@ func runCollectionTests(t *testing.T, collector prometheus.Collector, testCases
 }
 
 func TestSolanaCollector_Collect_Static(t *testing.T) {
-	collector := NewSolanaCollector(&staticRPCClient{}, slotPacerSchedule, nil, identities, votekeys)
+	collector := NewSolanaCollector(&staticRPCClient{}, slotPacerSchedule, nil, identities, votekeys, &identity)
 	prometheus.NewPedanticRegistry().MustRegister(collector)
 
 	testCases := []collectionTest{
@@ -492,7 +493,7 @@ solana_node_version{version="1.16.7"} 1
 
 func TestSolanaCollector_Collect_Dynamic(t *testing.T) {
 	client := newDynamicRPCClient()
-	collector := NewSolanaCollector(client, slotPacerSchedule, nil, identities, votekeys)
+	collector := NewSolanaCollector(client, slotPacerSchedule, nil, identities, votekeys, &identity)
 	prometheus.NewPedanticRegistry().MustRegister(collector)
 
 	// start off by testing initial state:

pkg/rpc/client.go

@@ -75,6 +75,7 @@ type Provider interface {
 	GetBlock(ctx context.Context, commitment Commitment, slot int64, transactionDetails string) (*Block, error)
 
 	GetHealth(ctx context.Context) (*string, error)
+	GetIdentity(ctx context.Context) (*string, error)
 }
 
 func (c Commitment) MarshalJSON() ([]byte, error) {
@@ -315,3 +316,13 @@ func (c *Client) GetHealth(ctx context.Context) (*string, error) {
 	}
 	return &resp.Result, nil
 }
+
+// GetIdentity Returns the identity pubkey for the current node
+// See API docs: https://solana.com/docs/rpc/http/getidentity
+func (c *Client) GetIdentity(ctx context.Context) (*string, error) {
+	var resp response[Identity]
+	if err := getResponse(ctx, c, "getIdentity", []any{}, &resp); err != nil {
+		return nil, err
+	}
+	return &resp.Result.Identity, nil
+}

pkg/rpc/responses.go

@@ -98,6 +98,9 @@ type (
 		RewardType  string `json:"rewardType"`
 		Commission  uint8  `json:"commission"`
 	}
+	Identity struct {
+		Identity string `json:"identity"`
+	}
 )
 
 func (e *RPCError) Error() string {