PMM-13575 use self label for agent metric (#1033)

* PMM-13575: add self label to agent status

* tidy go mod

* use own role to determine self-label

Author: idoqo

exporter/pbm_collector.go

@@ -25,6 +25,8 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/sirupsen/logrus"
 	"go.mongodb.org/mongo-driver/mongo"
+
+	"github.com/percona/mongodb_exporter/internal/util"
 )
 
 // pbm collector collects metrics from PBM (Percona Backup for MongoDb).
@@ -125,14 +127,19 @@ func (p *pbmCollector) collect(ch chan<- prometheus.Metric) {
 }
 
 func (p *pbmCollector) pbmAgentMetrics(ctx context.Context, pbmClient *sdk.Client, l *logrus.Entry) []prometheus.Metric {
+	currentNode, err := util.MyRole(ctx, p.base.client)
+	if err != nil {
+		l.Errorf("failed to get current node info: %s", err.Error())
+		return nil
+	}
+
 	clusterStatus, err := cli.ClusterStatus(ctx, pbmClient, cli.RSConfGetter(p.mongoURI))
 	if err != nil {
 		l.Errorf("failed to get cluster status: %s", err.Error())
 		return nil
 	}
 
 	metrics := make([]prometheus.Metric, 0, len(clusterStatus))
-
 	for replsetName, nodes := range clusterStatus {
 		for _, node := range nodes {
 			var pbmStatusMetric float64
@@ -146,14 +153,20 @@ func (p *pbmCollector) pbmAgentMetrics(ctx context.Context, pbmClient *sdk.Clien
 			default: // !node.OK
 				pbmStatusMetric = float64(pbmAgentStatusError)
 			}
+			labels := map[string]string{
+				"host":        node.Host,
+				"replica_set": replsetName,
+				"role":        string(node.Role),
+				"self":        "0",
+			}
+			if node.Host == currentNode.Me {
+				labels["self"] = "1"
+			}
 			metrics = append(metrics, createPBMMetric("agent_status",
 				"PBM Agent Status",
 				pbmStatusMetric,
-				map[string]string{
-					"host":        node.Host,
-					"replica_set": replsetName,
-					"role":        string(node.Role),
-				}),
+				labels,
+			),
 			)
 		}
 	}

go.mod

@@ -22,18 +22,18 @@ require github.com/foxcpp/go-mockdns v1.1.0
 
 require github.com/hashicorp/go-version v1.7.0
 
-require github.com/percona/percona-backup-mongodb v1.8.1-0.20241022111827-8d3ad8a6eb7a
+require github.com/percona/percona-backup-mongodb v1.8.1-0.20250218045950-7e9f38fe06ab
 
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.10.0 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/internal v1.5.2 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.3.1 // indirect
-	github.com/aws/aws-sdk-go v1.55.1 // indirect
+	github.com/aws/aws-sdk-go v1.55.5 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/go-ini/ini v1.67.0 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/frankban/quicktest v1.14.6 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/jessevdk/go-flags v1.5.0 // indirect
@@ -45,29 +45,27 @@ require (
 	github.com/mdlayher/socket v0.4.1 // indirect
 	github.com/mdlayher/vsock v1.2.1 // indirect
 	github.com/miekg/dns v1.1.57 // indirect
-	github.com/minio/minio-go v6.0.14+incompatible // indirect
-	github.com/mitchellh/go-homedir v1.1.0 // indirect
 	github.com/mongodb/mongo-tools v0.0.0-20240723193119-837c2bc263f4 // indirect
 	github.com/montanaflynn/stats v0.7.1 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f // indirect
 	github.com/pierrec/lz4 v2.6.1+incompatible // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/prometheus/procfs v0.15.1 // indirect
 	github.com/rogpeppe/go-internal v1.11.0 // indirect
 	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
-	golang.org/x/crypto v0.32.0 // indirect
+	golang.org/x/crypto v0.33.0 // indirect
 	golang.org/x/exp v0.0.0-20240529005216-23cca8864a10 // indirect
 	golang.org/x/mod v0.19.0 // indirect
-	golang.org/x/net v0.33.0 // indirect
+	golang.org/x/net v0.35.0 // indirect
 	golang.org/x/oauth2 v0.24.0 // indirect
-	golang.org/x/sync v0.10.0 // indirect
-	golang.org/x/sys v0.29.0 // indirect
-	golang.org/x/term v0.28.0 // indirect
-	golang.org/x/text v0.21.0 // indirect
+	golang.org/x/sync v0.11.0 // indirect
+	golang.org/x/sys v0.30.0 // indirect
+	golang.org/x/term v0.29.0 // indirect
+	golang.org/x/text v0.22.0 // indirect
 	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
 	google.golang.org/protobuf v1.36.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect