Beispiel #1
0
func (db *SQLDB) DesireLRP(logger lager.Logger, desiredLRP *models.DesiredLRP) error {
	logger = logger.WithData(lager.Data{"process_guid": desiredLRP.ProcessGuid})
	logger.Info("starting")
	defer logger.Info("complete")

	return db.transact(logger, func(logger lager.Logger, tx *sql.Tx) error {
		routesData, err := db.encodeRouteData(logger, desiredLRP.Routes)
		if err != nil {
			logger.Error("failed-encoding-route-data", err)
			return err
		}

		runInfo := desiredLRP.DesiredLRPRunInfo(db.clock.Now())

		runInfoData, err := db.serializeModel(logger, &runInfo)
		if err != nil {
			logger.Error("failed-to-serialize-model", err)
			return err
		}

		volumePlacement := &models.VolumePlacement{}
		volumePlacement.DriverNames = []string{}
		for _, mount := range desiredLRP.VolumeMounts {
			volumePlacement.DriverNames = append(volumePlacement.DriverNames, mount.Driver)
		}

		volumePlacementData, err := db.serializeModel(logger, volumePlacement)
		if err != nil {
			logger.Error("failed-to-serialize-model", err)
			return err
		}

		guid, err := db.guidProvider.NextGUID()
		if err != nil {
			logger.Error("failed-to-generate-guid", err)
			return models.ErrGUIDGeneration
		}

		placementTagData, err := json.Marshal(desiredLRP.PlacementTags)
		if err != nil {
			logger.Error("failed-to-serialize-model", err)
			return err
		}

		desiredLRP.ModificationTag = &models.ModificationTag{Epoch: guid, Index: 0}

		_, err = db.insert(logger, tx, desiredLRPsTable,
			SQLAttributes{
				"process_guid":           desiredLRP.ProcessGuid,
				"domain":                 desiredLRP.Domain,
				"log_guid":               desiredLRP.LogGuid,
				"annotation":             desiredLRP.Annotation,
				"instances":              desiredLRP.Instances,
				"memory_mb":              desiredLRP.MemoryMb,
				"disk_mb":                desiredLRP.DiskMb,
				"rootfs":                 desiredLRP.RootFs,
				"volume_placement":       volumePlacementData,
				"modification_tag_epoch": desiredLRP.ModificationTag.Epoch,
				"modification_tag_index": desiredLRP.ModificationTag.Index,
				"routes":                 routesData,
				"run_info":               runInfoData,
				"placement_tags":         placementTagData,
			},
		)
		if err != nil {
			logger.Error("failed-inserting-desired", err)
			return db.convertSQLError(err)
		}
		return nil
	})
}