GH-15742: added db health check method in app (#15752)

api4/system.go

@@ -97,21 +97,14 @@ func getSystemPing(c *Context, w http.ResponseWriter, r *http.Request) {
 		dbStatusKey := "database_status"
 		s[dbStatusKey] = model.STATUS_OK
 
-		// Database Write Check
-		currentTime := fmt.Sprintf("%d", time.Now().Unix())
-		healthCheckKey := fmt.Sprintf("health_check_%s", c.App.GetClusterId())
-
-		writeErr := c.App.Srv().Store.System().SaveOrUpdate(&model.System{
-			Name:  healthCheckKey,
-			Value: currentTime,
-		})
+		writeErr := c.App.DBHealthCheckWrite()
 		if writeErr != nil {
 			mlog.Warn("Unable to write to database.", mlog.Err(writeErr))
 			s[dbStatusKey] = model.STATUS_UNHEALTHY
 			s[model.STATUS] = model.STATUS_UNHEALTHY
 		}
 
-		_, writeErr = c.App.Srv().Store.System().PermanentDeleteByName(healthCheckKey)
+		writeErr = c.App.DBHealthCheckDelete()
 		if writeErr != nil {
 			mlog.Warn("Unable to remove ping health check value from database.", mlog.Err(writeErr))
 			s[dbStatusKey] = model.STATUS_UNHEALTHY