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server_restore.go
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server_restore.go
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package helper
import (
"fmt"
export "github.com/mycontroller-org/server/v2/pkg/backup"
br_map "github.com/mycontroller-org/server/v2/pkg/backup/bkp_map"
"github.com/mycontroller-org/server/v2/pkg/database"
"github.com/mycontroller-org/server/v2/pkg/types/backup"
"github.com/mycontroller-org/server/v2/pkg/types/config"
"github.com/mycontroller-org/server/v2/pkg/utils"
"go.uber.org/zap"
"gopkg.in/yaml.v3"
)
// returns restoreEngine api and storage import api map
// used in data import and restore
func (s *Server) getRestoreMap() (*export.BackupRestore, map[string]backup.Backup, error) {
restoreEngine, err := export.New(s.ctx)
if err != nil {
s.logger.Error("error on getting backup/restore api", zap.Error(err))
return nil, nil, err
}
storageApiMap, err := br_map.GetStorageApiMap(s.ctx)
if err != nil {
s.logger.Error("error on getting storage api map", zap.Error(err))
return nil, nil, err
}
return restoreEngine, storageApiMap, nil
}
// loads data from disk to database
// for now used only in memory database
func (s *Server) runStorageImport() error {
restoreEngine, storageApiMap, err := s.getRestoreMap()
if err != nil {
return err
}
err = database.RunStorageImport(s.ctx, s.logger, s.storage, storageApiMap, restoreEngine.ExecuteImportStorage)
if err != nil {
s.logger.Error("error on storage import", zap.Error(err))
return err
}
return nil
}
// performs restore operation
// verifies on startup and if restore required, performs the operation
func (s *Server) checkSystemRestore() {
dirInternal := s.config.Directories.GetDataInternal()
filename := fmt.Sprintf("%s/%s", dirInternal, config.SystemStartJobsFilename)
if !utils.IsFileExists(filename) {
return
}
bytes, err := utils.ReadFile(dirInternal, config.SystemStartJobsFilename)
if err != nil {
s.logger.Fatal("error on loading system startup file", zap.String("filename", filename), zap.Error(err))
return
}
jobs := &config.SystemStartupJobs{}
err = yaml.Unmarshal(bytes, jobs)
if err != nil {
s.logger.Fatal("error on loading system startup file", zap.String("filename", filename), zap.Error(err))
return
}
// perform restore operation
s.triggerSystemRestore(&jobs.Restore)
// remove the directories
err = utils.RemoveFileOrEmptyDir(filename)
if err != nil {
s.logger.Fatal("error on removing file", zap.Any("filename", filename), zap.Error(err))
return
}
// remove internal directory
err = utils.RemoveDir(dirInternal)
if err != nil {
s.logger.Fatal("error on removing internal directory on restore operation", zap.String("path", dirInternal), zap.Error(err))
}
}
// performs restore operation
func (s *Server) triggerSystemRestore(cfg *config.StartupRestore) {
if !cfg.Enabled {
return
}
restoreEngine, storageApiMap, err := s.getRestoreMap()
if err != nil {
s.logger.Fatal("error on getting restore engine and storage api map", zap.Error(err))
return
}
s.logger.Info("found a restore setup on startup. Performing restore operation", zap.Any("config", cfg))
err = restoreEngine.ExecuteRestore(s.storage, storageApiMap, cfg.ExtractedDirectory)
if err != nil {
s.logger.Fatal("error on restore", zap.Error(err))
return
}
// clean extracted files
err = utils.RemoveDir(cfg.ExtractedDirectory)
if err != nil {
s.logger.Fatal("error on deleting extracted backup files", zap.Any("restoreConfig", cfg), zap.Error(err))
return
}
}