Add trace support for ilm activity (#16993)

cmd/bucket-lifecycle.go

@@ -32,6 +32,7 @@ import (
 	"time"
 
 	"github.com/google/uuid"
+	"github.com/minio/madmin-go/v2"
 	"github.com/minio/minio-go/v7/pkg/tags"
 	"github.com/minio/minio/internal/amztime"
 	sse "github.com/minio/minio/internal/bucket/encryption"
@@ -70,6 +71,30 @@ func NewLifecycleSys() *LifecycleSys {
 	return &LifecycleSys{}
 }
 
+func ilmTrace(startTime time.Time, duration time.Duration, oi ObjectInfo, event string) madmin.TraceInfo {
+	return madmin.TraceInfo{
+		TraceType: madmin.TraceILM,
+		Time:      startTime,
+		NodeName:  globalLocalNodeName,
+		FuncName:  event,
+		Duration:  duration,
+		Path:      pathJoin(oi.Bucket, oi.Name),
+		Error:     "",
+		Message:   getSource(4),
+		Custom:    map[string]string{"version-id": oi.VersionID},
+	}
+}
+
+func (sys *LifecycleSys) trace(oi ObjectInfo) func(event string) {
+	startTime := time.Now()
+	return func(event string) {
+		duration := time.Since(startTime)
+		if globalTrace.NumSubscribers(madmin.TraceILM) > 0 {
+			globalTrace.Publish(ilmTrace(startTime, duration, oi, event))
+		}
+	}
+}
+
 type expiryTask struct {
 	objInfo        ObjectInfo
 	versionExpiry  bool
@@ -360,6 +385,7 @@ const (
 // 1. when a restored (via PostRestoreObject API) object expires.
 // 2. when a transitioned object expires (based on an ILM rule).
 func expireTransitionedObject(ctx context.Context, objectAPI ObjectLayer, oi *ObjectInfo, lcOpts lifecycle.ObjectOpts, action expireAction) error {
+	traceFn := globalLifecycleSys.trace(*oi)
 	var opts ObjectOptions
 	opts.Versioned = globalBucketVersioningSys.PrefixEnabled(oi.Bucket, oi.Name)
 	opts.VersionID = lcOpts.VersionID
@@ -385,7 +411,7 @@ func expireTransitionedObject(ctx context.Context, objectAPI ObjectLayer, oi *Ob
 		}
 
 		// Send audit for the lifecycle delete operation
-		auditLogLifecycle(ctx, *oi, ILMExpiry)
+		defer auditLogLifecycle(ctx, *oi, ILMExpiry, traceFn)
 
 		eventName := event.ObjectRemovedDelete
 		if lcOpts.DeleteMarker {