[receiver/vcenter] Add vcenter.cluster.name resource attribute to d…

…atastore metrics (open-telemetry#12360)

* add vcenter.cluster.name resource attribute to datastore metrics

* add changelog entry

receiver/vcenterreceiver/scraper.go

@@ -187,14 +187,15 @@ func (v *vcenterMetricScraper) collectDatastores(
  }
 
  for _, ds := range datastores {
- v.collectDatastore(ctx, colTime, ds, errs)
+ v.collectDatastore(ctx, colTime, ds, cluster, errs)
  }
 }
 
 func (v *vcenterMetricScraper) collectDatastore(
  ctx context.Context,
  now pcommon.Timestamp,
  ds *object.Datastore,
+ cluster *object.ClusterComputeResource,
  errs *scrapererror.ScrapeErrors,
 ) {
  var moDS mo.Datastore
@@ -206,6 +207,7 @@ func (v *vcenterMetricScraper) collectDatastore(
 
  v.recordDatastoreProperties(now, moDS)
  v.mb.EmitForResource(
+ metadata.WithVcenterClusterName(cluster.Name()),
  metadata.WithVcenterDatastoreName(moDS.Name),
  )
 }

receiver/vcenterreceiver/testdata/metrics/expected.json

@@ -3107,6 +3107,12 @@
  "value": {
  "stringValue": "vsanDatastore"
  }
+ },
+ {
+ "key": "vcenter.cluster.name",
+ "value": {
+ "stringValue": "Cluster"
+ }
  }
  ]
  },

receiver/vcenterreceiver/testdata/metrics/expected_without_direction.json

@@ -1436,6 +1436,12 @@
  "value": {
  "stringValue": "vsanDatastore"
  }
+ },
+ {
+ "key": "vcenter.cluster.name",
+ "value": {
+ "stringValue": "Cluster"
+ }
  }
  ]
  },

receiver/vcenterreceiver/testdata/metrics/integration-metrics.json

@@ -266,6 +266,12 @@
  "value": {
  "stringValue": "LocalDS_0"
  }
+ },
+ {
+ "key": "vcenter.cluster.name",
+ "value": {
+ "stringValue": "DC0_C0"
+ }
  }
  ]
  },

unreleased/vcenter-datastore-metrics-with-cluster.yaml

@@ -0,0 +1,16 @@
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: 'breaking'
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: vcenterreceiver
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Adds the `vcenter.cluster.name` resource attribute to `vcenter.datastore` metrics
+
+# One or more tracking issues related to the change
+issues: [ 12357 ]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: