portainer/api/backup/backup.go

84 lines
2.3 KiB
Go

package backup
import (
"fmt"
"os"
"path/filepath"
"time"
"github.com/pkg/errors"
portainer "github.com/portainer/portainer/api"
"github.com/portainer/portainer/api/archive"
"github.com/portainer/portainer/api/crypto"
"github.com/portainer/portainer/api/http/offlinegate"
)
const rwxr__r__ os.FileMode = 0744
var filesToBackup = []string{"compose", "config.json", "custom_templates", "edge_jobs", "edge_stacks", "extensions", "portainer.key", "portainer.pub", "tls"}
// Creates a tar.gz system archive and encrypts it if password is not empty. Returns a path to the archive file.
func CreateBackupArchive(password string, gate *offlinegate.OfflineGate, datastore portainer.DataStore, filestorePath string) (string, error) {
unlock := gate.Lock()
defer unlock()
backupDirPath := filepath.Join(filestorePath, "backup", time.Now().Format("2006-01-02_15-04-05"))
if err := os.MkdirAll(backupDirPath, rwxr__r__); err != nil {
return "", errors.Wrap(err, "Failed to create backup dir")
}
if err := backupDb(backupDirPath, datastore); err != nil {
return "", errors.Wrap(err, "Failed to backup database")
}
for _, filename := range filesToBackup {
err := copyPath(filepath.Join(filestorePath, filename), backupDirPath)
if err != nil {
return "", errors.Wrap(err, "Failed to create backup file")
}
}
archivePath, err := archive.TarGzDir(backupDirPath)
if err != nil {
return "", errors.Wrap(err, "Failed to make an archive")
}
if password != "" {
archivePath, err = encrypt(archivePath, password)
if err != nil {
return "", errors.Wrap(err, "Failed to encrypt backup with the password")
}
}
return archivePath, nil
}
func backupDb(backupDirPath string, datastore portainer.DataStore) error {
backupWriter, err := os.Create(filepath.Join(backupDirPath, "portainer.db"))
if err != nil {
return err
}
if err = datastore.BackupTo(backupWriter); err != nil {
return err
}
return backupWriter.Close()
}
func encrypt(path string, passphrase string) (string, error) {
in, err := os.Open(path)
if err != nil {
return "", err
}
defer in.Close()
outFileName := fmt.Sprintf("%s.encrypted", path)
out, err := os.Create(outFileName)
if err != nil {
return "", err
}
err = crypto.AesEncrypt(in, out, []byte(passphrase))
return outFileName, err
}