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Merge branch 'matthewpi/backups-patch-1' into develop

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# Conflicts:
#	loggers/cli/cli.go
This commit is contained in:
Matthew Penner 2020-12-06 16:18:15 -07:00
commit e41b3dc09a
5 changed files with 52 additions and 85 deletions
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19
api/backup_endpoints.go
View File

@ -2,12 +2,16 @@ package api
import (
"fmt"
"github.com/patrickmn/go-cache"
"strconv"
"time"
)
// backupUploadIDs stores a cache of active S3 backups.
var backupUploadIDs = cache.New(time.Hour*3, time.Minute*5)
type BackupRemoteUploadResponse struct {
CompleteMultipartUpload string `json:"complete_multipart_upload"`
AbortMultipartUpload string `json:"abort_multipart_upload"`
UploadID string `json:"upload_id"`
Parts []string `json:"parts"`
PartSize int64 `json:"part_size"`
}
@ -28,10 +32,16 @@ func (r *Request) GetBackupRemoteUploadURLs(backup string, size int64) (*BackupR
return nil, err
}
// Store the backup upload id for later use, this is a janky way to be able to use it later with SendBackupStatus.
// Yes, the timeout of 3 hours is intentional, if this value is removed before the backup completes,
// the backup will fail even if it uploaded properly.
backupUploadIDs.Set(backup, res.UploadID, 0)
return &res, nil
}
type BackupRequest struct {
UploadID string `json:"upload_id"`
Checksum string `json:"checksum"`
ChecksumType string `json:"checksum_type"`
Size int64 `json:"size"`
@ -41,6 +51,11 @@ type BackupRequest struct {
// Notifies the panel that a specific backup has been completed and is now
// available for a user to view and download.
func (r *Request) SendBackupStatus(backup string, data BackupRequest) error {
// Set the UploadID on the data.
if v, ok := backupUploadIDs.Get(backup); ok {
data.UploadID = v.(string)
}
resp, err := r.Post(fmt.Sprintf("/backups/%s", backup), data)
if err != nil {
return err

19
config/config_system.go
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@ -59,11 +59,6 @@ type SystemConfiguration struct {
// disk usage is not a concern.
DiskCheckInterval int64 `default:"150" yaml:"disk_check_interval"`
// Determines if Wings should detect a server that stops with a normal exit code of
// "0" as being crashed if the process stopped without any Wings interaction. E.g.
// the user did not press the stop button, but the process stopped cleanly.
DetectCleanExitAsCrash bool `default:"true" yaml:"detect_clean_exit_as_crash"`
// If set to true, file permissions for a server will be checked when the process is
// booted. This can cause boot delays if the server has a large amount of files. In most
// cases disabling this should not have any major impact unless external processes are
@ -78,6 +73,20 @@ type SystemConfiguration struct {
WebsocketLogCount int `default:"150" yaml:"websocket_log_count"`
Sftp SftpConfiguration `yaml:"sftp"`
CrashDetection CrashDetection `yaml:"crash_detection"`
}
type CrashDetection struct {
// Determines if Wings should detect a server that stops with a normal exit code of
// "0" as being crashed if the process stopped without any Wings interaction. E.g.
// the user did not press the stop button, but the process stopped cleanly.
DetectCleanExitAsCrash bool `default:"true" yaml:"detect_clean_exit_as_crash"`
// Timeout specifies the timeout between crashes that will not cause the server
// to be automatically restarted, this value is used to prevent servers from
// becoming stuck in a boot-loop after multiple consecutive crashes.
Timeout int `default:"60" json:"timeout"`
}
// Ensures that all of the system directories exist on the system. These directories are

3
server/backup.go
View File

@ -13,8 +13,7 @@ import (
// 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 {
err := api.New().SendBackupStatus(uuid, ad.ToRequest(successful))
if err != nil {
if err := api.New().SendBackupStatus(uuid, ad.ToRequest(successful)); err != nil {
if !api.IsRequestError(err) {
s.Log().WithFields(log.Fields{
"backup": uuid,

74
server/backup/backup_s3.go
View File

@ -1,7 +1,6 @@
package backup
import (
"bytes"
"context"
"fmt"
"github.com/apex/log"
@ -10,7 +9,6 @@ import (
"net/http"
"os"
"strconv"
"time"
)
type S3Backup struct {
@ -75,10 +73,12 @@ func (s *S3Backup) generateRemoteRequest(rc io.ReadCloser) error {
return err
}
log.WithFields(log.Fields{
l := log.WithFields(log.Fields{
"backup_id": s.Uuid,
"adapter": "s3",
}).Info("attempting to upload backup..")
})
l.Info("attempting to upload backup..")
handlePart := func(part string, size int64) (string, error) {
r, err := http.NewRequest(http.MethodPut, part, nil)
@ -91,7 +91,7 @@ func (s *S3Backup) generateRemoteRequest(rc io.ReadCloser) error {
r.Header.Add("Content-Type", "application/x-gzip")
// Limit the reader to the size of the part.
r.Body = Reader{io.LimitReader(rc, size)}
r.Body = Reader{Reader: io.LimitReader(rc, size)}
// This http request can block forever due to it not having a timeout,
// but we are uploading up to 5GB of data, so there is not really
@ -111,10 +111,6 @@ func (s *S3Backup) generateRemoteRequest(rc io.ReadCloser) error {
return res.Header.Get("ETag"), nil
}
// Start assembling the body that will be sent as apart of the CompleteMultipartUpload request.
var completeUploadBody bytes.Buffer
completeUploadBody.WriteString("<CompleteMultipartUpload>\n")
partCount := len(urls.Parts)
for i, part := range urls.Parts {
// Get the size for the current part.
@ -128,67 +124,13 @@ func (s *S3Backup) generateRemoteRequest(rc io.ReadCloser) error {
}
// Attempt to upload the part.
etag, err := handlePart(part, partSize)
if err != nil {
log.WithError(err).Warn("failed to upload part")
// Send an AbortMultipartUpload request.
if err := s.finishUpload(urls.AbortMultipartUpload, nil); err != nil {
log.WithError(err).Warn("failed to abort multipart backup upload")
}
if _, err := handlePart(part, partSize); err != nil {
l.WithField("part_id", part).WithError(err).Warn("failed to upload part")
return err
}
// Add the part to the CompleteMultipartUpload body.
completeUploadBody.WriteString("\t<Part>\n")
completeUploadBody.WriteString("\t\t<ETag>\"" + etag + "\"</ETag>\n")
completeUploadBody.WriteString("\t\t<PartNumber>" + strconv.Itoa(i+1) + "</PartNumber>\n")
completeUploadBody.WriteString("\t</Part>\n")
}
completeUploadBody.WriteString("</CompleteMultipartUpload>")
// Send a CompleteMultipartUpload request.
if err := s.finishUpload(urls.CompleteMultipartUpload, &completeUploadBody); err != nil {
return err
}
log.WithFields(log.Fields{
"backup_id": s.Uuid,
"adapter": "s3",
}).Info("backup has been successfully uploaded")
return nil
}
// finishUpload sends a requests to the specified url to either complete or abort the upload.
func (s *S3Backup) finishUpload(url string, body io.Reader) error {
r, err := http.NewRequest(http.MethodPost, url, body)
if err != nil {
return err
}
// Create a new http client with a 10 second timeout.
c := &http.Client{
Timeout: 10 * time.Second,
}
res, err := c.Do(r)
if err != nil {
return err
}
defer res.Body.Close()
// Handle non-200 status codes.
if res.StatusCode != http.StatusOK {
// If no body was sent, we were aborting the upload.
if body == nil {
return fmt.Errorf("failed to abort S3 multipart upload, %d:%s", res.StatusCode, res.Status)
}
// If a body was sent we were completing the upload.
// TODO: Attempt to send abort request?
return fmt.Errorf("failed to complete S3 multipart upload, %d:%s", res.StatusCode, res.Status)
}
l.Info("backup has been successfully uploaded")
return nil
}

18
server/crash.go
View File

@ -4,6 +4,7 @@ import (
"fmt"
"github.com/pterodactyl/wings/config"
"github.com/pterodactyl/wings/environment"
"strconv"
"sync"
"time"
)
@ -47,8 +48,7 @@ func (s *Server) handleServerCrash() error {
if s.Environment.State() != environment.ProcessOfflineState || !s.Config().CrashDetectionEnabled {
if !s.Config().CrashDetectionEnabled {
s.Log().Debug("server triggered crash detection but handler is disabled for server process")
s.PublishConsoleOutputFromDaemon("Server detected as crashed; crash detection is disabled for this instance.")
s.PublishConsoleOutputFromDaemon("Aborting automatic restart, crash detection is disabled for this instance.")
}
return nil
@ -61,9 +61,8 @@ func (s *Server) handleServerCrash() error {
// If the system is not configured to detect a clean exit code as a crash, and the
// crash is not the result of the program running out of memory, do nothing.
if exitCode == 0 && !oomKilled && !config.Get().System.DetectCleanExitAsCrash {
if exitCode == 0 && !oomKilled && !config.Get().System.CrashDetection.DetectCleanExitAsCrash {
s.Log().Debug("server exited with successful exit code; system is configured to not detect this as a crash")
return nil
}
@ -72,11 +71,14 @@ func (s *Server) handleServerCrash() error {
s.PublishConsoleOutputFromDaemon(fmt.Sprintf("Out of memory: %t", oomKilled))
c := s.crasher.LastCrashTime()
// If the last crash time was within the last 60 seconds we do not want to perform
// an automatic reboot of the process. Return an error that can be handled.
if !c.IsZero() && c.Add(time.Second*60).After(time.Now()) {
s.PublishConsoleOutputFromDaemon("Aborting automatic reboot: last crash occurred less than 60 seconds ago.")
timeout := config.Get().System.CrashDetection.Timeout
// If the last crash time was within the last `timeout` seconds we do not want to perform
// an automatic reboot of the process. Return an error that can be handled.
//
// If timeout is set to 0, always reboot the server (this is probably a terrible idea, but some people want it)
if timeout != 0 && !c.IsZero() && c.Add(time.Second*time.Duration(config.Get().System.CrashDetection.Timeout)).After(time.Now()) {
s.PublishConsoleOutputFromDaemon("Aborting automatic restart, last crash occurred less than " + strconv.Itoa(timeout) + " seconds ago.")
return &crashTooFrequent{}
}