feat: added api health endpoint that does not require auth and never creates sessions, returns db status as well. #3302

pkg/services/sqlstore/health.go

@@ -0,0 +1,14 @@
+package sqlstore
+
+import (
+	"github.com/grafana/grafana/pkg/bus"
+	m "github.com/grafana/grafana/pkg/models"
+)
+
+func init() {
+	bus.AddHandler("sql", GetDBHealthQuery)
+}
+
+func GetDBHealthQuery(query *m.GetDBHealthQuery) error {
+	return x.Ping()
+}

pkg/services/sqlstore/sqlstore.go

@@ -158,6 +158,7 @@ func getEngine() (*xorm.Engine, error) {
 	} else {
 		engine.SetMaxOpenConns(DbCfg.MaxOpenConn)
 		engine.SetMaxIdleConns(DbCfg.MaxIdleConn)
+		engine.SetLogger(&xorm.DiscardLogger{})
 		// engine.SetLogger(NewXormLogger(log.LvlInfo, log.New("sqlstore.xorm")))
 		// engine.ShowSQL = true
 		// engine.ShowInfo = true