Abstract out more of the backup functionality
This commit is contained in:
parent
dbe403ef6e
commit
4ff7bd2777
|
@ -12,11 +12,11 @@ import (
|
|||
func postServerBackup(c *gin.Context) {
|
||||
s := GetServer(c.Param("server"))
|
||||
|
||||
data := &backup.Backup{}
|
||||
data := &backup.LocalBackup{}
|
||||
c.BindJSON(&data)
|
||||
|
||||
go func(b *backup.Backup, serv *server.Server) {
|
||||
if err := serv.BackupRoot(b); err != nil {
|
||||
go func(b *backup.LocalBackup, serv *server.Server) {
|
||||
if err := serv.BackupLocal(b); err != nil {
|
||||
zap.S().Errorw("failed to generate backup for server", zap.Error(err))
|
||||
}
|
||||
}(data, s)
|
||||
|
|
|
@ -2,17 +2,41 @@ package server
|
|||
|
||||
import (
|
||||
"github.com/pkg/errors"
|
||||
"github.com/pterodactyl/wings/api"
|
||||
"github.com/pterodactyl/wings/server/backup"
|
||||
"go.uber.org/zap"
|
||||
)
|
||||
|
||||
// Notifies the panel of a backup's state and returns an error if one is encountered
|
||||
// while performing this action.
|
||||
func (s *Server) notifyPanelOfBackup(uuid string, ad *backup.ArchiveDetails, successful bool) error {
|
||||
r := api.NewRequester()
|
||||
rerr, err := r.SendBackupStatus(uuid, ad.ToRequest(successful))
|
||||
if rerr != nil || err != nil {
|
||||
if err != nil {
|
||||
zap.S().Errorw(
|
||||
"failed to notify panel of backup status due to internal code error",
|
||||
zap.String("backup", s.Uuid),
|
||||
zap.Error(err),
|
||||
)
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
zap.S().Warnw(rerr.String(), zap.String("backup", uuid))
|
||||
|
||||
return errors.New(rerr.String())
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Performs a server backup and then emits the event over the server websocket. We
|
||||
// let the actual backup system handle notifying the panel of the status, but that
|
||||
// won't emit a websocket event.
|
||||
func (s *Server) BackupRoot(b *backup.Backup) error {
|
||||
r, err := b.LocalBackup(s.Filesystem.Path())
|
||||
if err != nil {
|
||||
if notifyError := b.NotifyPanel(r, false); notifyError != nil {
|
||||
func (s *Server) BackupLocal(b *backup.LocalBackup) error {
|
||||
if err := b.Backup(s.Filesystem.Path()); err != nil {
|
||||
if notifyError := s.notifyPanelOfBackup(b.Identifier(), &backup.ArchiveDetails{}, false); notifyError != nil {
|
||||
zap.S().Warnw("failed to notify panel of failed backup state", zap.String("backup", b.Uuid), zap.Error(err))
|
||||
}
|
||||
|
||||
|
@ -21,7 +45,8 @@ func (s *Server) BackupRoot(b *backup.Backup) error {
|
|||
|
||||
// Try to notify the panel about the status of this backup. If for some reason this request
|
||||
// fails, delete the archive from the daemon and return that error up the chain to the caller.
|
||||
if notifyError := b.NotifyPanel(r, true); notifyError != nil {
|
||||
ad := b.Details()
|
||||
if notifyError := s.notifyPanelOfBackup(b.Identifier(), ad, true); notifyError != nil {
|
||||
b.Remove()
|
||||
|
||||
return notifyError
|
||||
|
@ -31,8 +56,8 @@ func (s *Server) BackupRoot(b *backup.Backup) error {
|
|||
// the frontend for the server.
|
||||
s.Events().PublishJson(BackupCompletedEvent+":"+b.Uuid, map[string]interface{}{
|
||||
"uuid": b.Uuid,
|
||||
"sha256_hash": r.Checksum,
|
||||
"file_size": r.Size,
|
||||
"sha256_hash": ad.Checksum,
|
||||
"file_size": ad.Size,
|
||||
})
|
||||
|
||||
return nil
|
||||
|
|
|
@ -1,24 +1,30 @@
|
|||
package backup
|
||||
|
||||
import (
|
||||
"crypto/sha256"
|
||||
"github.com/pkg/errors"
|
||||
"github.com/pterodactyl/wings/api"
|
||||
"github.com/pterodactyl/wings/config"
|
||||
"go.uber.org/zap"
|
||||
"io"
|
||||
"os"
|
||||
"path"
|
||||
)
|
||||
|
||||
type Backup struct {
|
||||
// The UUID of this backup object. This must line up with a backup from
|
||||
// the panel instance.
|
||||
Uuid string `json:"uuid"`
|
||||
type Backup interface {
|
||||
// Returns the UUID of this backup as tracked by the panel instance.
|
||||
Identifier() string
|
||||
|
||||
// An array of files to ignore when generating this backup. This should be
|
||||
// compatible with a standard .gitignore structure.
|
||||
IgnoredFiles []string `json:"ignored_files"`
|
||||
// Generates a backup in whatever the configured source for the specific
|
||||
// implementation is.
|
||||
Backup(dir string) error
|
||||
|
||||
// Returns a SHA256 checksum for the generated backup.
|
||||
Checksum() ([]byte, error)
|
||||
|
||||
// Returns the size of the generated backup.
|
||||
Size() (int64, error)
|
||||
|
||||
// Returns the path to the backup on the machine. This is not always the final
|
||||
// storage location of the backup, simply the location we're using to store
|
||||
// it until it is moved to the final spot.
|
||||
Path() string
|
||||
|
||||
// Returns details about the archive.
|
||||
Details() *ArchiveDetails
|
||||
}
|
||||
|
||||
type ArchiveDetails struct {
|
||||
|
@ -34,70 +40,3 @@ func (ad *ArchiveDetails) ToRequest(successful bool) api.BackupRequest {
|
|||
Successful: successful,
|
||||
}
|
||||
}
|
||||
|
||||
// Returns the path for this specific backup.
|
||||
func (b *Backup) Path() string {
|
||||
return path.Join(config.Get().System.BackupDirectory, b.Uuid+".tar.gz")
|
||||
}
|
||||
|
||||
// Returns the SHA256 checksum of a backup.
|
||||
func (b *Backup) Checksum() ([]byte, error) {
|
||||
h := sha256.New()
|
||||
|
||||
f, err := os.Open(b.Path())
|
||||
if err != nil {
|
||||
return []byte{}, errors.WithStack(err)
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
if _, err := io.Copy(h, f); err != nil {
|
||||
return []byte{}, errors.WithStack(err)
|
||||
}
|
||||
|
||||
return h.Sum(nil), nil
|
||||
}
|
||||
|
||||
// Removes a backup from the system.
|
||||
func (b *Backup) Remove() error {
|
||||
return os.Remove(b.Path())
|
||||
}
|
||||
|
||||
// Notifies the panel of a backup's state and returns an error if one is encountered
|
||||
// while performing this action.
|
||||
func (b *Backup) NotifyPanel(ad *ArchiveDetails, successful bool) error {
|
||||
r := api.NewRequester()
|
||||
|
||||
rerr, err := r.SendBackupStatus(b.Uuid, ad.ToRequest(successful))
|
||||
if rerr != nil || err != nil {
|
||||
if err != nil {
|
||||
zap.S().Errorw(
|
||||
"failed to notify panel of backup status due to internal code error",
|
||||
zap.String("backup", b.Uuid),
|
||||
zap.Error(err),
|
||||
)
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
zap.S().Warnw(rerr.String(), zap.String("backup", b.Uuid))
|
||||
|
||||
return errors.New(rerr.String())
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Ensures that the local backup destination for files exists.
|
||||
func (b *Backup) ensureLocalBackupLocation() error {
|
||||
d := config.Get().System.BackupDirectory
|
||||
|
||||
if _, err := os.Stat(d); err != nil {
|
||||
if !os.IsNotExist(err) {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
return os.MkdirAll(d, 0700)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
|
@ -1,19 +1,35 @@
|
|||
package backup
|
||||
|
||||
import (
|
||||
"crypto/sha256"
|
||||
"encoding/hex"
|
||||
"github.com/mholt/archiver/v3"
|
||||
"github.com/pkg/errors"
|
||||
"github.com/pterodactyl/wings/config"
|
||||
"go.uber.org/zap"
|
||||
"io"
|
||||
"os"
|
||||
"path"
|
||||
"strings"
|
||||
"sync"
|
||||
)
|
||||
|
||||
type LocalBackup struct {
|
||||
// The UUID of this backup object. This must line up with a backup from
|
||||
// the panel instance.
|
||||
Uuid string `json:"uuid"`
|
||||
|
||||
// An array of files to ignore when generating this backup. This should be
|
||||
// compatible with a standard .gitignore structure.
|
||||
IgnoredFiles []string `json:"ignored_files"`
|
||||
}
|
||||
|
||||
var _ Backup = (*LocalBackup)(nil)
|
||||
|
||||
// Locates the backup for a server and returns the local path. This will obviously only
|
||||
// work if the backup was created as a local backup.
|
||||
func LocateLocal(uuid string) (*Backup, os.FileInfo, error) {
|
||||
b := &Backup{
|
||||
func LocateLocal(uuid string) (*LocalBackup, os.FileInfo, error) {
|
||||
b := &LocalBackup{
|
||||
Uuid: uuid,
|
||||
IgnoredFiles: nil,
|
||||
}
|
||||
|
@ -30,26 +46,73 @@ func LocateLocal(uuid string) (*Backup, os.FileInfo, error) {
|
|||
return b, st, nil
|
||||
}
|
||||
|
||||
func (b *LocalBackup) Identifier() string {
|
||||
return b.Uuid
|
||||
}
|
||||
|
||||
// Returns the path for this specific backup.
|
||||
func (b *LocalBackup) Path() string {
|
||||
return path.Join(config.Get().System.BackupDirectory, b.Uuid+".tar.gz")
|
||||
}
|
||||
|
||||
// Returns the SHA256 checksum of a backup.
|
||||
func (b *LocalBackup) Checksum() ([]byte, error) {
|
||||
h := sha256.New()
|
||||
|
||||
f, err := os.Open(b.Path())
|
||||
if err != nil {
|
||||
return []byte{}, errors.WithStack(err)
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
if _, err := io.Copy(h, f); err != nil {
|
||||
return []byte{}, errors.WithStack(err)
|
||||
}
|
||||
|
||||
return h.Sum(nil), nil
|
||||
}
|
||||
|
||||
// Removes a backup from the system.
|
||||
func (b *LocalBackup) Remove() error {
|
||||
return os.Remove(b.Path())
|
||||
}
|
||||
|
||||
// Generates a backup of the selected files and pushes it to the defined location
|
||||
// for this instance.
|
||||
func (b *Backup) LocalBackup(dir string) (*ArchiveDetails, error) {
|
||||
func (b *LocalBackup) Backup(dir string) error {
|
||||
if err := archiver.Archive([]string{dir}, b.Path()); err != nil {
|
||||
if strings.HasPrefix(err.Error(), "file already exists") {
|
||||
if rerr := os.Remove(b.Path()); rerr != nil {
|
||||
return nil, errors.WithStack(rerr)
|
||||
return errors.WithStack(rerr)
|
||||
}
|
||||
|
||||
// Re-attempt this backup by calling it with the same information.
|
||||
return b.LocalBackup(dir)
|
||||
return b.Backup(dir)
|
||||
}
|
||||
|
||||
// If there was some error with the archive, just go ahead and ensure the backup
|
||||
// is completely destroyed at this point. Ignore any errors from this function.
|
||||
os.Remove(b.Path())
|
||||
|
||||
return nil, err
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Return the size of the generated backup.
|
||||
func (b *LocalBackup) Size() (int64, error) {
|
||||
st, err := os.Stat(b.Path())
|
||||
if err != nil {
|
||||
return 0, errors.WithStack(err)
|
||||
}
|
||||
|
||||
return st.Size(), nil
|
||||
}
|
||||
|
||||
// Returns details of the archive by utilizing two go-routines to get the checksum and
|
||||
// the size of the archive.
|
||||
func (b *LocalBackup) Details() *ArchiveDetails {
|
||||
wg := sync.WaitGroup{}
|
||||
wg.Add(2)
|
||||
|
||||
|
@ -83,5 +146,20 @@ func (b *Backup) LocalBackup(dir string) (*ArchiveDetails, error) {
|
|||
return &ArchiveDetails{
|
||||
Checksum: checksum,
|
||||
Size: sz,
|
||||
}, nil
|
||||
}
|
||||
}
|
||||
|
||||
// Ensures that the local backup destination for files exists.
|
||||
func (b *LocalBackup) ensureLocalBackupLocation() error {
|
||||
d := config.Get().System.BackupDirectory
|
||||
|
||||
if _, err := os.Stat(d); err != nil {
|
||||
if !os.IsNotExist(err) {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
return os.MkdirAll(d, 0700)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
37
server/backup/backup_s3.go
Normal file
37
server/backup/backup_s3.go
Normal file
|
@ -0,0 +1,37 @@
|
|||
package backup
|
||||
|
||||
type S3Backup struct {
|
||||
// The UUID of this backup object. This must line up with a backup from
|
||||
// the panel instance.
|
||||
Uuid string
|
||||
|
||||
// An array of files to ignore when generating this backup. This should be
|
||||
// compatible with a standard .gitignore structure.
|
||||
IgnoredFiles []string
|
||||
}
|
||||
|
||||
var _ Backup = (*S3Backup)(nil)
|
||||
|
||||
func (s *S3Backup) Identifier() string {
|
||||
return s.Uuid
|
||||
}
|
||||
|
||||
func (s *S3Backup) Backup(dir string) error {
|
||||
panic("implement me")
|
||||
}
|
||||
|
||||
func (s *S3Backup) Checksum() ([]byte, error) {
|
||||
return []byte(""), nil
|
||||
}
|
||||
|
||||
func (s *S3Backup) Size() (int64, error) {
|
||||
return 0, nil
|
||||
}
|
||||
|
||||
func (s *S3Backup) Path() string {
|
||||
return ""
|
||||
}
|
||||
|
||||
func (s *S3Backup) Details() *ArchiveDetails {
|
||||
return &ArchiveDetails{}
|
||||
}
|
Loading…
Reference in New Issue
Block a user