UsageStats: Add database age and driver (#66535)

Co-authored-by: Dan Cech <dcech@grafana.com>

pkg/infra/usagestats/statscollector/service.go

@@ -161,6 +161,12 @@ func (s *Service) collectSystemStats(ctx context.Context) (map[string]interface{
 	m["stats.active_data_keys.count"] = statsResult.ActiveDataKeys
 	m["stats.public_dashboards.count"] = statsResult.PublicDashboards
 	m["stats.correlations.count"] = statsResult.Correlations
+	if statsResult.DatabaseCreatedTime != nil {
+		m["stats.database.created.time"] = statsResult.DatabaseCreatedTime.Unix()
+	}
+	if statsResult.DatabaseDriver != "" {
+		m["stats.database.driver"] = statsResult.DatabaseDriver
+	}
 
 	ossEditionCount := 1
 	enterpriseEditionCount := 0

pkg/services/stats/models.go

@@ -1,5 +1,7 @@
 package stats
 
+import "time"
+
 type SystemStats struct {
 	Dashboards                int64
 	DashboardBytesTotal       int64
@@ -45,6 +47,10 @@ type SystemStats struct {
 	ActiveDataKeys            int64
 	PublicDashboards          int64
 	Correlations              int64
+	DatabaseCreatedTime       *time.Time
+
+	// name of the driver
+	DatabaseDriver string
 }
 
 type DataSourceStats struct {

pkg/services/stats/statsimpl/stats.go

@@ -63,10 +63,10 @@ func notServiceAccount(dialect migrator.Dialect) string {
 }
 
 func (ss *sqlStatsService) GetSystemStats(ctx context.Context, query *stats.GetSystemStatsQuery) (result *stats.SystemStats, err error) {
+	dialect := ss.db.GetDialect()
 	err = ss.db.WithDbSession(ctx, func(dbSession *db.Session) error {
 		sb := &db.SQLBuilder{}
 		sb.Write("SELECT ")
-		dialect := ss.db.GetDialect()
 		sb.Write(`(SELECT COUNT(*) FROM ` + dialect.Quote("user") + ` WHERE ` + notServiceAccount(dialect) + `) AS users,`)
 		sb.Write(`(SELECT COUNT(*) FROM ` + dialect.Quote("org") + `) AS orgs,`)
 		sb.Write(`(SELECT COUNT(*) FROM ` + dialect.Quote("data_source") + `) AS datasources,`)
@@ -127,6 +127,7 @@ func (ss *sqlStatsService) GetSystemStats(ctx context.Context, query *stats.GetS
 		sb.Write(`(SELECT COUNT(*) FROM ` + dialect.Quote("data_keys") + `) AS data_keys,`)
 		sb.Write(`(SELECT COUNT(*) FROM ` + dialect.Quote("data_keys") + `WHERE active = true) AS active_data_keys,`)
 		sb.Write(`(SELECT COUNT(*) FROM ` + dialect.Quote("dashboard_public") + `) AS public_dashboards,`)
+		sb.Write(`(SELECT MIN(timestamp) FROM ` + dialect.Quote("migration_log") + `) AS database_created_time,`)
 
 		sb.Write(ss.roleCounterSQL(ctx))
 
@@ -138,8 +139,11 @@ func (ss *sqlStatsService) GetSystemStats(ctx context.Context, query *stats.GetS
 
 		result = &stats
 
+		result.DatabaseDriver = dialect.DriverName()
+
 		return nil
 	})
+
 	return result, err
 }
 

pkg/services/stats/statsimpl/stats_test.go

@@ -41,6 +41,8 @@ func TestIntegrationStatsDataAccess(t *testing.T) {
 		assert.Equal(t, int64(0), result.LibraryVariables)
 		assert.Equal(t, int64(0), result.APIKeys)
 		assert.Equal(t, int64(2), result.Correlations)
+		assert.NotNil(t, result.DatabaseCreatedTime)
+		assert.Equal(t, db.Dialect.DriverName(), result.DatabaseDriver)
 	})
 
 	t.Run("Get system user count stats should not results in error", func(t *testing.T) {