mirror of https://github.com/portainer/portainer
70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
package backup
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import (
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"context"
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"io"
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"os"
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"path/filepath"
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"time"
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"github.com/pkg/errors"
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portainer "github.com/portainer/portainer/api"
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"github.com/portainer/portainer/api/archive"
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"github.com/portainer/portainer/api/crypto"
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"github.com/portainer/portainer/api/filesystem"
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"github.com/portainer/portainer/api/http/offlinegate"
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)
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var filesToRestore = append(filesToBackup, "portainer.db")
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// Restores system state from backup archive, will trigger system shutdown, when finished.
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func RestoreArchive(archive io.Reader, password string, filestorePath string, gate *offlinegate.OfflineGate, datastore portainer.DataStore, shutdownTrigger context.CancelFunc) error {
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var err error
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if password != "" {
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archive, err = decrypt(archive, password)
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if err != nil {
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return errors.Wrap(err, "failed to decrypt the archive")
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}
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}
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restorePath := filepath.Join(filestorePath, "restore", time.Now().Format("20060102150405"))
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defer os.RemoveAll(filepath.Dir(restorePath))
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err = extractArchive(archive, restorePath)
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if err != nil {
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return errors.Wrap(err, "cannot extract files from the archive. Please ensure the password is correct and try again")
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}
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unlock := gate.Lock()
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defer unlock()
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if err = datastore.Close(); err != nil {
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return errors.Wrap(err, "Failed to stop db")
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}
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if err = restoreFiles(restorePath, filestorePath); err != nil {
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return errors.Wrap(err, "failed to restore the system state")
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}
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shutdownTrigger()
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return nil
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}
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func decrypt(r io.Reader, password string) (io.Reader, error) {
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return crypto.AesDecrypt(r, []byte(password))
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}
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func extractArchive(r io.Reader, destinationDirPath string) error {
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return archive.ExtractTarGz(r, destinationDirPath)
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}
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func restoreFiles(srcDir string, destinationDir string) error {
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for _, filename := range filesToRestore {
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err := filesystem.CopyPath(filepath.Join(srcDir, filename), destinationDir)
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if err != nil {
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return err
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}
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}
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return nil
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}
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