[receiver/sqlserver] Add computer name resource attribute to relevant metrics

.chloggen/sqlserver_computer_rattr.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: sqlserverreceiver
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add computer name resource attribute to relevant metrics
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [35040]
+
+# (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:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

receiver/sqlserverreceiver/queries.go

@@ -211,6 +211,7 @@ INSERT INTO @PCounters SELECT * FROM PerfCounters;
 SELECT
 	 'sqlserver_performance' AS [measurement]
 	,REPLACE(@@SERVERNAME,'\',':') AS [sql_instance]
+	,HOST_NAME() AS [computer_name]
 	,pc.[object_name] AS [object]
 	,pc.[counter_name] AS [counter]
 	,CASE pc.[instance_name] WHEN '_Total' THEN 'Total' ELSE ISNULL(pc.[instance_name],'') END AS [instance]
@@ -288,6 +289,7 @@ EXEC [xp_instance_regread]
 SELECT
 	 ''sqlserver_server_properties'' AS [measurement]
 	,REPLACE(@@SERVERNAME,''\'','':'') AS [sql_instance]
+	,HOST_NAME() AS [computer_name]
 	,@@SERVICENAME AS [service_name]
 	,si.[cpu_count]
 	,(SELECT [total_physical_memory_kb] FROM sys.[dm_os_sys_memory]) AS [server_memory]

receiver/sqlserverreceiver/scraper.go

@@ -21,7 +21,10 @@ import (
 	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/sqlserverreceiver/internal/metadata"
 )
 
-const instanceNameKey = "sql_instance"
+const (
+	computerNameKey = "computer_name"
+	instanceNameKey = "sql_instance"
+)
 
 type sqlServerScraperHelper struct {
 	id                 component.ID
@@ -106,7 +109,6 @@ func (s *sqlServerScraperHelper) Shutdown(_ context.Context) error {
 }
 
 func (s *sqlServerScraperHelper) recordDatabaseIOMetrics(ctx context.Context) error {
-	const computerNameKey = "computer_name"
 	const databaseNameKey = "database_name"
 	const physicalFilenameKey = "physical_filename"
 	const logicalFilenameKey = "logical_filename"
@@ -195,6 +197,7 @@ func (s *sqlServerScraperHelper) recordDatabasePerfCounterMetrics(ctx context.Co
 	now := pcommon.NewTimestampFromTime(time.Now())
 	for i, row := range rows {
 		rb := s.mb.NewResourceBuilder()
+		rb.SetSqlserverComputerName(row[computerNameKey])
 		rb.SetSqlserverInstanceName(row[instanceNameKey])
 
 		switch row[counterKey] {
@@ -283,6 +286,7 @@ func (s *sqlServerScraperHelper) recordDatabaseStatusMetrics(ctx context.Context
 	now := pcommon.NewTimestampFromTime(time.Now())
 	for _, row := range rows {
 		rb := s.mb.NewResourceBuilder()
+		rb.SetSqlserverComputerName(row[computerNameKey])
 		rb.SetSqlserverInstanceName(row[instanceNameKey])
 
 		errs = append(errs, s.mb.RecordSqlserverDatabaseCountDataPoint(now, row[dbOnline], metadata.AttributeDatabaseStatusOnline))