[Metricbeat] add collecting tags for rds metricset (#16605)

* add ListTagsForResourceRequest for rds metricset

CHANGELOG.next.asciidoc

@@ -213,6 +213,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Add filtering option for prometheus collector. {pull}16420[16420]
 - Add metricsets based on Ceph Manager Daemon to the `ceph` module. {issue}7723[7723] {pull}16254[16254]
 - Release `statsd` module as GA. {pull}16447[16447] {issue}14280[14280]
+- Add collecting tags and tags_filter for rds metricset in aws module. {pull}16605[16605] {issue}16358[16358]
 - Add OpenMetrics Metricbeat module {pull}16596[16596]
 - Add `cloudfoundry` module to send events from Cloud Foundry. {pull}16671[16671]
 - Add `redisenterprise` module. {pull}16482[16482] {issue}15269[15269]

metricbeat/docs/modules/aws.asciidoc

@@ -38,7 +38,7 @@ Currently, we have `billing`, `cloudwatch`, `dynamodb`, `ebs`, `ec2`, `elb`,
 `lambda`, `rds`, `s3_daily_storage`, `s3_request`, `sns`, `sqs` and `usage`
 metricset in `aws` module.
 
-Collecting `tags` for `ec2`, `cloudwatch`, and metricset created based on
+Collecting `tags` for `ec2`, `rds`, `cloudwatch`, and metricset created based on
 `cloudwatch` using light module is supported.
 
 * *tags.*: Tag key value pairs from aws resources. A tag is a label that user assigns to an AWS resource.
@@ -301,6 +301,9 @@ metricbeat.modules:
 - module: aws
   period: 60s
   credential_profile_name: test-mb
+  tags_filter:
+    - key: "dept"
+      value: "eng"
   metricsets:
     - rds
 ----

x-pack/metricbeat/metricbeat.reference.yml

@@ -222,6 +222,9 @@ metricbeat.modules:
 - module: aws
   period: 60s
   credential_profile_name: test-mb
+  tags_filter:
+    - key: "dept"
+      value: "eng"
   metricsets:
     - rds
 

x-pack/metricbeat/module/aws/_meta/config.reference.yml

@@ -41,5 +41,8 @@
 - module: aws
   period: 60s
   credential_profile_name: test-mb
+  tags_filter:
+    - key: "dept"
+      value: "eng"
   metricsets:
     - rds

x-pack/metricbeat/module/aws/_meta/docs.asciidoc

@@ -30,7 +30,7 @@ Currently, we have `billing`, `cloudwatch`, `dynamodb`, `ebs`, `ec2`, `elb`,
 `lambda`, `rds`, `s3_daily_storage`, `s3_request`, `sns`, `sqs` and `usage`
 metricset in `aws` module.
 
-Collecting `tags` for `ec2`, `cloudwatch`, and metricset created based on
+Collecting `tags` for `ec2`, `rds`, `cloudwatch`, and metricset created based on
 `cloudwatch` using light module is supported.
 
 * *tags.*: Tag key value pairs from aws resources. A tag is a label that user assigns to an AWS resource.

x-pack/metricbeat/module/aws/aws.go

@@ -12,6 +12,7 @@ import (
 	"github.com/aws/aws-sdk-go-v2/service/ec2"
 	"github.com/aws/aws-sdk-go-v2/service/ec2/ec2iface"
 	"github.com/aws/aws-sdk-go-v2/service/iam"
+	"github.com/aws/aws-sdk-go-v2/service/rds"
 	"github.com/aws/aws-sdk-go-v2/service/resourcegroupstaggingapi"
 	"github.com/aws/aws-sdk-go-v2/service/sts"
 	"github.com/pkg/errors"
@@ -23,9 +24,10 @@ import (
 
 // Config defines all required and optional parameters for aws metricsets
 type Config struct {
-	Period    time.Duration       `config:"period" validate:"nonzero,required"`
-	Regions   []string            `config:"regions"`
-	AWSConfig awscommon.ConfigAWS `config:",inline"`
+	Period     time.Duration       `config:"period" validate:"nonzero,required"`
+	Regions    []string            `config:"regions"`
+	AWSConfig  awscommon.ConfigAWS `config:",inline"`
+	TagsFilter []Tag               `config:"tags_filter"`
 }
 
 // MetricSet is the base metricset for all aws metricsets
@@ -37,6 +39,7 @@ type MetricSet struct {
 	AwsConfig   *awssdk.Config
 	AccountName string
 	AccountID   string
+	TagsFilter  []Tag
 }
 
 // Tag holds a configuration specific for ec2 and cloudwatch metricset.
@@ -84,6 +87,7 @@ func NewMetricSet(base mb.BaseMetricSet) (*MetricSet, error) {
 		BaseMetricSet: base,
 		Period:        config.Period,
 		AwsConfig:     &awsConfig,
+		TagsFilter:    config.TagsFilter,
 	}
 
 	// Get IAM account name
@@ -194,6 +198,12 @@ func CheckTagFiltersExist(tagsFilter []Tag, tags interface{}) bool {
 			tagKeys = append(tagKeys, *tag.Key)
 			tagValues = append(tagValues, *tag.Value)
 		}
+	case []rds.Tag:
+		tagsRDS := tags.([]rds.Tag)
+		for _, tag := range tagsRDS {
+			tagKeys = append(tagKeys, *tag.Key)
+			tagValues = append(tagValues, *tag.Value)
+		}
 	}
 
 	for _, tagFilter := range tagsFilter {

x-pack/metricbeat/module/aws/ec2/ec2.go

@@ -45,7 +45,6 @@ func init() {
 // interface methods except for Fetch.
 type MetricSet struct {
 	*aws.MetricSet
-	TagsFilter []aws.Tag `config:"tags_filter"`
 }
 
 // New creates a new instance of the MetricSet. New is responsible for unpacking
@@ -56,15 +55,6 @@ func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
 		return nil, errors.Wrap(err, "error creating aws metricset")
 	}
 
-	config := struct {
-		Tags []aws.Tag `config:"tags_filter"`
-	}{}
-
-	err = base.Module().UnpackConfig(&config)
-	if err != nil {
-		return nil, errors.Wrap(err, "error unpack raw module config using UnpackConfig")
-	}
-
 	// Check if period is set to be multiple of 60s or 300s
 	remainder300 := int(metricSet.Period.Seconds()) % 300
 	remainder60 := int(metricSet.Period.Seconds()) % 60
@@ -76,8 +66,7 @@ func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
 	}
 
 	return &MetricSet{
-		MetricSet:  metricSet,
-		TagsFilter: config.Tags,
+		MetricSet: metricSet,
 	}, nil
 }
 
@@ -201,6 +190,9 @@ func (m *MetricSet) createCloudWatchEvents(getMetricDataResults []cloudwatch.Met
 					// If tag filter doesn't exist in tagKeys/tagValues,
 					// then do not report this event/instance.
 					if exists := aws.CheckTagFiltersExist(m.TagsFilter, tags); !exists {
+						// if tag filter doesn't exist, remove this event initial
+						// entry to avoid report an empty event.
+						delete(events, instanceID)
 						continue
 					}
 				}

x-pack/metricbeat/module/aws/ec2/ec2_test.go

@@ -211,7 +211,6 @@ func TestCreateCloudWatchEventsDedotTags(t *testing.T) {
 
 	metricSet := MetricSet{
 		&aws.MetricSet{},
-		nil,
 	}
 	events, err := metricSet.createCloudWatchEvents(getMetricDataOutput, instancesOutputs, "us-west-1")
 	assert.NoError(t, err)
@@ -222,6 +221,145 @@ func TestCreateCloudWatchEventsDedotTags(t *testing.T) {
 	assert.Equal(t, expectedEvent.MetricSetFields["tags"], events[instanceID].ModuleFields["tags"])
 }
 
+func TestCreateCloudWatchEventsWithTagsFilter(t *testing.T) {
+	expectedEvent := mb.Event{
+		RootFields: common.MapStr{
+			"cloud": common.MapStr{
+				"region":            regionName,
+				"provider":          "aws",
+				"instance":          common.MapStr{"id": "i-123"},
+				"machine":           common.MapStr{"type": "t2.medium"},
+				"availability_zone": "us-west-1a",
+			},
+		},
+		MetricSetFields: common.MapStr{
+			"cpu": common.MapStr{
+				"total": common.MapStr{"pct": 0.25},
+			},
+			"instance": common.MapStr{
+				"image":            common.MapStr{"id": "image-123"},
+				"core":             common.MapStr{"count": int64(1)},
+				"threads_per_core": int64(1),
+				"state":            common.MapStr{"code": int64(16), "name": "running"},
+				"monitoring":       common.MapStr{"state": "disabled"},
+				"public": common.MapStr{
+					"dns_name": "ec2-1-2-3-4.us-west-1.compute.amazonaws.com",
+					"ip":       "1.2.3.4",
+				},
+				"private": common.MapStr{
+					"dns_name": "ip-5-6-7-8.us-west-1.compute.internal",
+					"ip":       "5.6.7.8",
+				},
+			},
+			"tags": common.MapStr{
+				"app_kubernetes_io/name": "foo",
+				"helm_sh/chart":          "foo-chart",
+			},
+		},
+	}
+
+	svcEC2Mock := &MockEC2Client{}
+	instanceIDs, instancesOutputs, err := getInstancesPerRegion(svcEC2Mock)
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(instanceIDs))
+	instanceID := instanceIDs[0]
+	assert.Equal(t, instanceID, instanceID)
+	timestamp := time.Now()
+
+	getMetricDataOutput := []cloudwatch.MetricDataResult{
+		{
+			Id:         &id1,
+			Label:      &label1,
+			Values:     []float64{0.25},
+			Timestamps: []time.Time{timestamp},
+		},
+		{
+			Id:         &id2,
+			Label:      &label2,
+			Values:     []float64{0.0},
+			Timestamps: []time.Time{timestamp},
+		},
+		{
+			Id:         &id3,
+			Label:      &label3,
+			Values:     []float64{0.0},
+			Timestamps: []time.Time{timestamp},
+		},
+		{
+			Id:         &id4,
+			Label:      &label4,
+			Values:     []float64{0.0},
+			Timestamps: []time.Time{timestamp},
+		},
+	}
+
+	metricSet := MetricSet{
+		&aws.MetricSet{
+			TagsFilter: []aws.Tag{{
+				Key:   "app.kubernetes.io/name",
+				Value: "foo",
+			}},
+		},
+	}
+	events, err := metricSet.createCloudWatchEvents(getMetricDataOutput, instancesOutputs, "us-west-1")
+
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(events))
+	assert.Equal(t, expectedEvent.RootFields, events[instanceID].RootFields)
+	assert.Equal(t, expectedEvent.MetricSetFields["cpu"], events[instanceID].MetricSetFields["cpu"])
+	assert.Equal(t, expectedEvent.MetricSetFields["instance"], events[instanceID].MetricSetFields["instance"])
+	assert.Equal(t, expectedEvent.MetricSetFields["tags"], events[instanceID].ModuleFields["tags"])
+}
+
+func TestCreateCloudWatchEventsWithNotMatchingTagsFilter(t *testing.T) {
+	svcEC2Mock := &MockEC2Client{}
+	instanceIDs, instancesOutputs, err := getInstancesPerRegion(svcEC2Mock)
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(instanceIDs))
+	instanceID := instanceIDs[0]
+	assert.Equal(t, instanceID, instanceID)
+	timestamp := time.Now()
+
+	getMetricDataOutput := []cloudwatch.MetricDataResult{
+		{
+			Id:         &id1,
+			Label:      &label1,
+			Values:     []float64{0.25},
+			Timestamps: []time.Time{timestamp},
+		},
+		{
+			Id:         &id2,
+			Label:      &label2,
+			Values:     []float64{0.0},
+			Timestamps: []time.Time{timestamp},
+		},
+		{
+			Id:         &id3,
+			Label:      &label3,
+			Values:     []float64{0.0},
+			Timestamps: []time.Time{timestamp},
+		},
+		{
+			Id:         &id4,
+			Label:      &label4,
+			Values:     []float64{0.0},
+			Timestamps: []time.Time{timestamp},
+		},
+	}
+
+	metricSet := MetricSet{
+		&aws.MetricSet{
+			TagsFilter: []aws.Tag{{
+				Key:   "app_kubernetes_io/name",
+				Value: "not_foo",
+			}},
+		},
+	}
+	events, err := metricSet.createCloudWatchEvents(getMetricDataOutput, instancesOutputs, "us-west-1")
+	assert.NoError(t, err)
+	assert.Equal(t, 0, len(events))
+}
+
 func TestConstructMetricQueries(t *testing.T) {
 	name := "InstanceId"
 	dim := cloudwatch.Dimension{

x-pack/metricbeat/module/aws/rds/_meta/data.json

@@ -3,61 +3,71 @@
     "aws": {
         "rds": {
             "aurora_bin_log_replica_lag": 0,
-            "aurora_replica.lag.ms": 19.683,
-            "aurora_replica.lag_max.ms": 19.651500701904297,
-            "aurora_replica.lag_min.ms": 19.651500701904297,
+            "aurora_replica.lag_max.ms": 19.108999252319336,
+            "aurora_replica.lag_min.ms": 19.108999252319336,
             "cache_hit_ratio.buffer": 100,
             "cache_hit_ratio.result_set": 0,
             "cpu": {
                 "total": {
-                    "pct": 0.035
+                    "pct": 0.04
                 }
             },
             "database_connections": 0,
-            "db_instance.class": "db.r5.large",
+            "db_instance": {
+                "arn": "arn:aws:rds:us-east-1:428152502467:db:database-1-instance-1",
+                "class": "db.r5.large",
+                "identifier": "database-1-instance-1",
+                "status": "available"
+            },
+            "db_instance.identifier": "database-1-instance-1",
             "deadlocks": 0,
             "disk_usage": {
                 "bin_log.bytes": 0
             },
-            "engine_uptime.sec": 278598.25,
-            "free_local_storage.bytes": 33112842240,
-            "freeable_memory.bytes": 4879514624,
+            "engine_uptime.sec": 2704277,
+            "free_local_storage.bytes": 31745863680,
+            "freeable_memory.bytes": 4634234880,
             "latency": {
-                "commit": 2.9322999999999997,
+                "commit": 5.270933333333333,
                 "ddl": 0,
                 "delete": 0,
-                "dml": 0.08325833333333334,
-                "insert": 0.08325833333333334,
-                "select": 0.20890321021571023,
+                "dml": 0.1624,
+                "insert": 0.1624,
+                "select": 0.17333862433862435,
                 "update": 0
             },
             "login_failures": 0,
-            "queries": 7.807070323085375,
+            "queries": 9.11833836203304,
             "throughput": {
-                "commit": 0.2500020925349523,
+                "commit": 0.5000916834753039,
                 "ddl": 0,
                 "delete": 0,
-                "dml": 0.2500020925349523,
-                "insert": 0.2500020925349523,
-                "network": 1.7498192019524124,
-                "network_receive": 0.8749096009762062,
-                "network_transmit": 0.8749096009762062,
-                "select": 2.8751975752392616,
+                "dml": 0.5000916834753039,
+                "insert": 0.5000916834753039,
+                "network": 1.4,
+                "network_receive": 0.7,
+                "network_transmit": 0.7,
+                "select": 3.150577605894414,
                 "update": 0
             },
             "transactions": {
                 "active": 0,
                 "blocked": 0
             }
+        },
+        "tags": {
+            "created-by": "ks",
+            "dept": "engr"
         }
     },
     "cloud": {
         "account": {
             "id": "428152502467",
             "name": "elastic-beats"
         },
+        "availability_zone": "us-east-1b",
         "provider": "aws",
-        "region": "eu-west-1"
+        "region": "us-east-1"
     },
     "event": {
         "dataset": "aws.rds",