Rainbond/builder/exector/groupapp_restore.go

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// RAINBOND, Application Management Platform
// Copyright (C) 2014-2017 Goodrain Co., Ltd.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package exector
import (
"context"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"time"
"github.com/coreos/etcd/clientv3"
"github.com/goodrain/rainbond/builder"
"github.com/goodrain/rainbond/builder/sources"
dbmodel "github.com/goodrain/rainbond/db/model"
"github.com/Sirupsen/logrus"
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"github.com/docker/docker/client"
"github.com/goodrain/rainbond/db"
"github.com/goodrain/rainbond/event"
"github.com/goodrain/rainbond/util"
"github.com/pquerna/ffjson/ffjson"
"github.com/tidwall/gjson"
)
//BackupAPPRestore restrore the group app backup
type BackupAPPRestore struct {
//full-online,full-offline
EventID string
SlugInfo struct {
Namespace string `json:"namespace"`
FTPHost string `json:"ftp_host"`
FTPPort string `json:"ftp_port"`
FTPUser string `json:"ftp_username"`
FTPPassword string `json:"ftp_password"`
} `json:"slug_info"`
ImageInfo struct {
HubURL string `json:"hub_url"`
HubUser string `json:"hub_user"`
HubPassword string `json:"hub_password"`
Namespace string `json:"namespace"`
IsTrust bool `json:"is_trust,omitempty"`
} `json:"image_info,omitempty"`
BackupID string `json:"backup_id"`
TenantID string `json:"tenant_id"`
Logger event.Logger
//RestoreMode(cdct) current datacenter and current tenant
//RestoreMode(cdot) current datacenter and other tenant
//RestoreMode(od) other datacenter
RestoreMode string `json:"restore_mode"`
RestoreID string `json:"restore_id"`
DockerClient *client.Client
cacheDir string
//serviceChange key: oldServiceID
serviceChange map[string]*Info
etcdcli *clientv3.Client
}
//Info service cache info
type Info struct {
ServiceID string
ServiceAlias string
Status string
LBPorts map[int]int
}
func init() {
RegisterWorker("backup_apps_restore", BackupAPPRestoreCreater)
}
//BackupAPPRestoreCreater create
func BackupAPPRestoreCreater(in []byte, m *exectorManager) (TaskWorker, error) {
eventID := gjson.GetBytes(in, "event_id").String()
logger := event.GetManager().GetLogger(eventID)
backupRestore := &BackupAPPRestore{
Logger: logger,
EventID: eventID,
DockerClient: m.DockerClient,
etcdcli: m.EtcdCli,
serviceChange: make(map[string]*Info, 0),
}
if err := ffjson.Unmarshal(in, &backupRestore); err != nil {
return nil, err
}
return backupRestore, nil
}
//Run Run
func (b *BackupAPPRestore) Run(timeout time.Duration) error {
//download or copy backup data
backup, err := db.GetManager().AppBackupDao().GetAppBackup(b.BackupID)
if err != nil {
return err
}
if backup.Status != "success" || backup.SourceDir == "" || backup.SourceType == "" {
return fmt.Errorf("backup can not be restore")
}
cacheDir := fmt.Sprintf("/grdata/cache/tmp/%s/%s", b.BackupID, b.EventID)
if err := util.CheckAndCreateDir(cacheDir); err != nil {
return fmt.Errorf("create cache dir error %s", err.Error())
}
b.cacheDir = cacheDir
switch backup.SourceType {
case "sftp":
b.downloadFromFTP(backup)
default:
b.downloadFromLocal(backup)
}
//read metadata file
metadata, err := ioutil.ReadFile(fmt.Sprintf("%s/region_apps_metadata.json", b.cacheDir))
if err != nil {
return err
}
var appSnapshots []*RegionServiceSnapshot
if err := ffjson.Unmarshal(metadata, &appSnapshots); err != nil {
return err
}
b.Logger.Info("读取备份元数据完成", map[string]string{"step": "restore_builder", "status": "success"})
//modify the metadata
if err := b.modify(appSnapshots); err != nil {
return err
}
//restore metadata to db
if err := b.restoreMetadata(appSnapshots); err != nil {
return err
}
b.Logger.Info("恢复备份元数据完成", map[string]string{"step": "restore_builder", "status": "success"})
//If the following error occurs, delete the data from the database
//restore all app all builde version and data
if err := b.restoreVersionAndData(backup, appSnapshots); err != nil {
return err
}
//save result
b.saveResult("success", "")
return nil
}
func (b *BackupAPPRestore) getServiceType(labels []*dbmodel.TenantServiceLable) string {
for _, l := range labels {
if l.LabelKey == dbmodel.LabelKeyServiceType {
return l.LabelValue
}
}
return util.StatelessServiceType
}
func (b *BackupAPPRestore) restoreVersionAndData(backup *dbmodel.AppBackup, appSnapshots []*RegionServiceSnapshot) error {
for _, app := range appSnapshots {
//backup app image or code slug file
b.Logger.Info(fmt.Sprintf("开始恢复应用(%s)运行环境", app.Service.ServiceAlias), map[string]string{"step": "restore_builder", "status": "starting"})
for _, version := range app.Versions {
if version.DeliveredType == "slug" && version.FinalStatus == "success" {
if err := b.downloadSlug(backup, app, version); err != nil {
logrus.Errorf("download app slug file error.%s", err.Error())
return err
}
}
if version.DeliveredType == "image" && version.FinalStatus == "success" {
if err := b.downloadImage(backup, app, version); err != nil {
logrus.Errorf("download app image error.%s", err.Error())
return err
}
}
}
b.Logger.Info(fmt.Sprintf("完成恢复应用(%s)运行环境", app.Service.ServiceAlias), map[string]string{"step": "restore_builder", "status": "success"})
b.Logger.Info(fmt.Sprintf("开始恢复应用(%s)持久化数据", app.Service.ServiceAlias), map[string]string{"step": "restore_builder", "status": "starting"})
//restore app data
for _, volume := range app.ServiceVolume {
if volume.HostPath != "" {
dstDir := fmt.Sprintf("%s/data_%s/%s.zip", b.cacheDir, b.getOldServiceID(app.ServiceID), strings.Replace(volume.VolumeName, "/", "", -1))
tmpDir := fmt.Sprintf("/grdata/tmp/%s_%d", volume.ServiceID, volume.ID)
if err := util.Unzip(dstDir, tmpDir); err != nil {
if !strings.Contains(err.Error(), "no such file") {
logrus.Errorf("restore service(%s) volume(%s) data error.%s", app.ServiceID, volume.VolumeName, err.Error())
return err
}
//backup data is not exist because dir is empty.
//so create host path and continue
os.MkdirAll(volume.HostPath, 0777)
continue
}
//if app type is statefulset, change pod hostpath
if b.getServiceType(app.ServiceLabel) == util.StatefulServiceType {
//Next two level directory
list, err := util.GetDirList(tmpDir, 2)
if err != nil {
logrus.Errorf("restore statefulset service(%s) volume(%s) data error.%s", app.ServiceID, volume.VolumeName, err.Error())
return err
}
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for _, path := range list {
newNameTmp := strings.Split(filepath.Base(path), "-")
newNameTmp[0] = b.serviceChange[b.getOldServiceID(app.ServiceID)].ServiceAlias
newName := strings.Join(newNameTmp, "-")
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newpath := filepath.Join(util.GetParentDirectory(path), newName)
err := util.Rename(path, newpath)
if err != nil {
if strings.Contains(err.Error(), "file exists") {
if err := util.MergeDir(path, newpath); err != nil {
return err
}
} else {
return err
}
}
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if err := os.Chmod(newpath, 0777); err != nil {
return err
}
}
}
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err := util.Rename(tmpDir, util.GetParentDirectory(volume.HostPath))
if err != nil {
if strings.Contains(err.Error(), "file exists") {
if err := util.MergeDir(tmpDir, util.GetParentDirectory(volume.HostPath)); err != nil {
return err
}
} else {
return err
}
}
if err := os.Chmod(volume.HostPath, 0777); err != nil {
return err
}
}
}
b.Logger.Info(fmt.Sprintf("完成恢复应用(%s)持久化数据", app.Service.ServiceAlias), map[string]string{"step": "restore_builder", "status": "success"})
//TODO:relation relation volume data?
}
return nil
}
func (b *BackupAPPRestore) getOldServiceID(new string) string {
for k, v := range b.serviceChange {
if v.ServiceID == new {
return k
}
}
return ""
}
func (b *BackupAPPRestore) downloadSlug(backup *dbmodel.AppBackup, app *RegionServiceSnapshot, version *dbmodel.VersionInfo) error {
if backup.BackupMode == "full-online" && b.SlugInfo.FTPHost != "" && b.SlugInfo.FTPPort != "" {
sFTPClient, err := sources.NewSFTPClient(b.SlugInfo.FTPUser, b.SlugInfo.FTPPassword, b.SlugInfo.FTPHost, b.SlugInfo.FTPPort)
if err != nil {
b.Logger.Error(util.Translation("create ftp client error"), map[string]string{"step": "restore_builder", "status": "failure"})
return err
}
defer sFTPClient.Close()
dstDir := fmt.Sprintf("%s/app_%s/%s.tgz", filepath.Dir(backup.SourceDir), b.getOldServiceID(app.ServiceID), version.BuildVersion)
if err := sFTPClient.DownloadFile(dstDir, version.DeliveredPath, b.Logger); err != nil {
b.Logger.Error(util.Translation("down slug file from sftp server error"), map[string]string{"step": "restore_builder", "status": "failure"})
logrus.Errorf("down %s slug file error when backup app , %s", dstDir, err.Error())
return err
}
} else {
dstDir := fmt.Sprintf("%s/app_%s/slug_%s.tgz", b.cacheDir, b.getOldServiceID(app.ServiceID), version.BuildVersion)
if err := sources.CopyFileWithProgress(dstDir, version.DeliveredPath, b.Logger); err != nil {
b.Logger.Error(util.Translation("down slug file from local dir error"), map[string]string{"step": "restore_builder", "status": "failure"})
logrus.Errorf("copy slug file error when backup app, %s", err.Error())
return err
}
}
return nil
}
func (b *BackupAPPRestore) downloadImage(backup *dbmodel.AppBackup, app *RegionServiceSnapshot, version *dbmodel.VersionInfo) error {
if backup.BackupMode == "full-online" && b.ImageInfo.HubURL != "" {
backupImage, err := version.CreateShareImage(b.ImageInfo.HubURL, b.ImageInfo.Namespace, fmt.Sprintf("%s_backup", backup.Version))
if err != nil {
return fmt.Errorf("create backup image error %s", err)
}
if _, err := sources.ImagePull(b.DockerClient, backupImage, b.ImageInfo.HubUser, b.ImageInfo.HubPassword, b.Logger, 10); err != nil {
b.Logger.Error(util.Translation("pull image from hub error"), map[string]string{"step": "restore_builder", "status": "failure"})
return fmt.Errorf("restore backup image pull error %s", err)
}
if err := sources.ImageTag(b.DockerClient, backupImage, version.DeliveredPath, b.Logger, 1); err != nil {
return fmt.Errorf("change image tag when restore backup error %s", err)
}
err = sources.ImagePush(b.DockerClient, version.DeliveredPath, builder.REGISTRYUSER, builder.REGISTRYPASS, b.Logger, 10)
if err != nil {
return fmt.Errorf("push image to local when restore backup error %s", err)
}
} else {
dstDir := fmt.Sprintf("%s/app_%s/image_%s.tar", b.cacheDir, b.getOldServiceID(app.ServiceID), version.BuildVersion)
if err := sources.ImageLoad(b.DockerClient, dstDir, b.Logger); err != nil {
b.Logger.Error(util.Translation("load image to local hub error"), map[string]string{"step": "restore_builder", "status": "failure"})
logrus.Errorf("load image to local hub error when restore backup app, %s", err.Error())
return err
}
}
return nil
}
//if restore error, will clear
func (b *BackupAPPRestore) clear() {
//clear db
manager := db.GetManager()
for _, v := range b.serviceChange {
serviceID := v.ServiceID
manager.TenantServiceDao().DeleteServiceByServiceID(serviceID)
manager.TenantServicesPortDao().DELPortsByServiceID(serviceID)
manager.ServiceProbeDao().DELServiceProbesByServiceID(serviceID)
manager.TenantServiceLBMappingPortDao().DELServiceLBMappingPortByServiceID(serviceID)
manager.TenantServiceEnvVarDao().DELServiceEnvsByServiceID(serviceID)
manager.TenantServiceLabelDao().DeleteLabelByServiceID(serviceID)
manager.TenantServiceMountRelationDao().DELTenantServiceMountRelationByServiceID(serviceID)
manager.TenantServicePluginRelationDao().DeleteALLRelationByServiceID(serviceID)
manager.TenantServiceRelationDao().DELRelationsByServiceID(serviceID)
manager.TenantServiceVolumeDao().DeleteTenantServiceVolumesByServiceID(serviceID)
manager.VersionInfoDao().DeleteVersionByServiceID(serviceID)
}
//clear cache data
os.RemoveAll(b.cacheDir)
}
func (b *BackupAPPRestore) modify(appSnapshots []*RegionServiceSnapshot) error {
for _, app := range appSnapshots {
oldServiceID := app.ServiceID
// if b.RestoreMode == "cdot" || b.RestoreMode == "od" {
//change tenant
app.Service.TenantID = b.TenantID
for _, port := range app.ServicePort {
port.TenantID = b.TenantID
}
for _, relation := range app.ServiceRelation {
relation.TenantID = b.TenantID
}
for _, env := range app.ServiceEnv {
env.TenantID = b.TenantID
}
for _, smr := range app.ServiceMntRelation {
smr.TenantID = b.TenantID
}
//}
//change service_id and service_alias
newServiceID := util.NewUUID()
newServiceAlias := "gr" + newServiceID[26:]
app.ServiceID = newServiceID
app.Service.ServiceID = newServiceID
app.Service.ServiceAlias = newServiceAlias
for _, a := range app.ServiceProbe {
a.ServiceID = newServiceID
}
for _, a := range app.LBMappingPort {
a.ServiceID = newServiceID
}
for _, a := range app.ServiceEnv {
a.ServiceID = newServiceID
}
for _, a := range app.ServiceLabel {
a.ServiceID = newServiceID
}
for _, a := range app.ServiceMntRelation {
a.ServiceID = newServiceID
}
for _, a := range app.PluginRelation {
a.ServiceID = newServiceID
}
for _, a := range app.ServiceRelation {
a.ServiceID = newServiceID
}
for _, a := range app.ServiceVolume {
a.ServiceID = newServiceID
}
for _, a := range app.ServicePort {
a.ServiceID = newServiceID
}
for _, a := range app.Versions {
a.ServiceID = newServiceID
}
b.serviceChange[oldServiceID] = &Info{
ServiceID: newServiceID,
ServiceAlias: newServiceAlias,
Status: app.ServiceStatus,
}
}
//modify relations
for _, app := range appSnapshots {
for _, a := range app.ServiceMntRelation {
a.DependServiceID = b.serviceChange[a.DependServiceID].ServiceID
}
for _, a := range app.ServiceRelation {
a.DependServiceID = b.serviceChange[a.DependServiceID].ServiceID
}
}
return nil
}
func (b *BackupAPPRestore) restoreMetadata(appSnapshots []*RegionServiceSnapshot) error {
tx := db.GetManager().Begin()
for _, app := range appSnapshots {
app.Service.ID = 0
if err := db.GetManager().TenantServiceDaoTransactions(tx).AddModel(app.Service); err != nil {
tx.Rollback()
return fmt.Errorf("create app when restore backup error. %s", err.Error())
}
for _, a := range app.ServiceProbe {
a.ID = 0
if err := db.GetManager().ServiceProbeDaoTransactions(tx).AddModel(a); err != nil {
tx.Rollback()
return fmt.Errorf("create app probe when restore backup error. %s", err.Error())
}
}
for _, a := range app.LBMappingPort {
a.ID = 0
if err := db.GetManager().TenantServiceLBMappingPortDaoTransactions(tx).AddModel(a); err != nil {
if strings.Contains(err.Error(), "is exist ") {
//modify the lb port
maport, err := db.GetManager().TenantServiceLBMappingPortDaoTransactions(tx).CreateTenantServiceLBMappingPort(a.ServiceID, a.ContainerPort)
if err != nil {
tx.Rollback()
return fmt.Errorf("create new app lb port when restore backup error. %s", err.Error())
}
info := b.serviceChange[b.getOldServiceID(app.ServiceID)]
if info == nil {
continue
}
if info.LBPorts == nil {
info.LBPorts = map[int]int{maport.ContainerPort: maport.Port}
} else {
info.LBPorts[maport.ContainerPort] = maport.Port
}
} else {
tx.Rollback()
return fmt.Errorf("create app probe when restore backup error. %s", err.Error())
}
}
}
for _, a := range app.ServiceEnv {
a.ID = 0
if err := db.GetManager().TenantServiceEnvVarDaoTransactions(tx).AddModel(a); err != nil {
tx.Rollback()
return fmt.Errorf("create app envs when restore backup error. %s", err.Error())
}
}
for _, a := range app.ServiceLabel {
a.ID = 0
if err := db.GetManager().TenantServiceLabelDaoTransactions(tx).AddModel(a); err != nil {
tx.Rollback()
return fmt.Errorf("create app labels when restore backup error. %s", err.Error())
}
}
for _, a := range app.ServiceMntRelation {
a.ID = 0
if err := db.GetManager().TenantServiceMountRelationDaoTransactions(tx).AddModel(a); err != nil {
tx.Rollback()
return fmt.Errorf("create app mount relation when restore backup error. %s", err.Error())
}
}
//TODO: support service plugin backup and restore
// for _, a := range app.PluginRelation {
// a.ID = 0
// if err := db.GetManager().TenantServicePluginRelationDaoTransactions(tx).AddModel(a); err != nil {
// tx.Rollback()
// return fmt.Errorf("create app plugin when restore backup error. %s", err.Error())
// }
// }
for _, a := range app.ServiceRelation {
a.ID = 0
if err := db.GetManager().TenantServiceRelationDaoTransactions(tx).AddModel(a); err != nil {
tx.Rollback()
return fmt.Errorf("create app relation when restore backup error. %s", err.Error())
}
}
localPath := os.Getenv("LOCAL_DATA_PATH")
sharePath := os.Getenv("SHARE_DATA_PATH")
if localPath == "" {
localPath = "/grlocaldata"
}
if sharePath == "" {
sharePath = "/grdata"
}
for _, a := range app.ServiceVolume {
a.ID = 0
switch a.VolumeType {
//nfs
case dbmodel.ShareFileVolumeType.String():
a.HostPath = fmt.Sprintf("%s/tenant/%s/service/%s%s", sharePath, b.TenantID, a.ServiceID, a.VolumePath)
//local
case dbmodel.LocalVolumeType.String():
a.HostPath = fmt.Sprintf("%s/tenant/%s/service/%s%s", localPath, b.TenantID, a.ServiceID, a.VolumePath)
}
if err := db.GetManager().TenantServiceVolumeDaoTransactions(tx).AddModel(a); err != nil {
tx.Rollback()
return fmt.Errorf("create app volume when restore backup error. %s", err.Error())
}
}
for _, a := range app.ServicePort {
a.ID = 0
if err := db.GetManager().TenantServicesPortDaoTransactions(tx).AddModel(a); err != nil {
tx.Rollback()
return fmt.Errorf("create app ports when restore backup error. %s", err.Error())
}
}
for _, a := range app.Versions {
a.ID = 0
if err := db.GetManager().VersionInfoDaoTransactions(tx).AddModel(a); err != nil {
tx.Rollback()
return fmt.Errorf("create app versions when restore backup error. %s", err.Error())
}
}
}
if err := tx.Commit().Error; err != nil {
tx.Rollback()
return err
}
return nil
}
func (b *BackupAPPRestore) downloadFromLocal(backup *dbmodel.AppBackup) error {
sourceDir := backup.SourceDir
err := util.Unzip(sourceDir, b.cacheDir)
if err != nil {
b.Logger.Error(util.Translation("unzip metadata file error"), map[string]string{"step": "backup_builder", "status": "failure"})
logrus.Errorf("unzip file error when restore backup app , %s", err.Error())
return err
}
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dirs, err := util.GetDirNameList(b.cacheDir, 1)
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if err != nil || len(dirs) < 1 {
b.Logger.Error(util.Translation("unzip metadata file error"), map[string]string{"step": "backup_builder", "status": "failure"})
return fmt.Errorf("find metadata cache dir error after unzip file")
}
b.cacheDir = filepath.Join(b.cacheDir, dirs[0])
return nil
}
func (b *BackupAPPRestore) downloadFromFTP(backup *dbmodel.AppBackup) error {
sourceDir := backup.SourceDir
sFTPClient, err := sources.NewSFTPClient(b.SlugInfo.FTPUser, b.SlugInfo.FTPPassword, b.SlugInfo.FTPHost, b.SlugInfo.FTPPort)
if err != nil {
b.Logger.Error(util.Translation("create ftp client error"), map[string]string{"step": "backup_builder", "status": "failure"})
return err
}
defer sFTPClient.Close()
dstDir := fmt.Sprintf("%s/%s", b.cacheDir, filepath.Base(sourceDir))
if err := sFTPClient.DownloadFile(sourceDir, dstDir, b.Logger); err != nil {
b.Logger.Error(util.Translation("down slug file from sftp server error"), map[string]string{"step": "backup_builder", "status": "failure"})
logrus.Errorf("down slug file error when restore backup app , %s", err.Error())
return err
}
err = util.Unzip(dstDir, b.cacheDir)
if err != nil {
b.Logger.Error(util.Translation("unzip metadata file error"), map[string]string{"step": "backup_builder", "status": "failure"})
logrus.Errorf("unzip file error when restore backup app , %s", err.Error())
return err
}
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dirs, err := util.GetDirNameList(b.cacheDir, 1)
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if err != nil || len(dirs) < 1 {
b.Logger.Error(util.Translation("unzip metadata file error"), map[string]string{"step": "backup_builder", "status": "failure"})
return fmt.Errorf("find metadata cache dir error after unzip file")
}
b.cacheDir = filepath.Join(b.cacheDir, dirs[0])
return nil
}
//Stop stop
func (b *BackupAPPRestore) Stop() error {
return nil
}
//Name return worker name
func (b *BackupAPPRestore) Name() string {
return "backup_apps_restore"
}
//GetLogger GetLogger
func (b *BackupAPPRestore) GetLogger() event.Logger {
return b.Logger
}
//ErrorCallBack if run error will callback
func (b *BackupAPPRestore) ErrorCallBack(err error) {
if err != nil {
logrus.Errorf("restore backup group app failure %s", err)
b.Logger.Error(util.Translation("restore backup group app failure"), map[string]string{"step": "callback", "status": "failure"})
b.clear()
b.saveResult("failed", err.Error())
}
}
//RestoreResult RestoreResult
type RestoreResult struct {
Status string `json:"status"`
Message string `json:"message"`
CreateTime time.Time `json:"create_time"`
ServiceChange map[string]*Info `json:"service_change"`
BackupID string `json:"backup_id"`
RestoreMode string `json:"restore_mode"`
EventID string `json:"event_id"`
RestoreID string `json:"restore_id"`
CacheDir string `json:"cache_dir"`
}
func (b *BackupAPPRestore) saveResult(status, message string) {
var rr = RestoreResult{
Status: status,
Message: message,
CreateTime: time.Now(),
ServiceChange: b.serviceChange,
BackupID: b.BackupID,
RestoreMode: b.RestoreMode,
EventID: b.EventID,
RestoreID: b.RestoreID,
CacheDir: b.cacheDir,
}
body, _ := ffjson.Marshal(rr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
b.etcdcli.Put(ctx, "/rainbond/backup_restore/"+rr.RestoreID, string(body))
}