// actionRunner handles running an action which may take a while to complete
// providing progress bars and signal handling.
func actionRunner(cmd *cli.Cmd, action action) func() {
cmd.Spec = "[--silent] [--no-progress] " + cmd.Spec
silent := cmd.BoolOpt("silent", false, "Set to true to disable all non-error output")
noProgress := cmd.BoolOpt("no-progress", false, "Set to true to disable the progress bar")
return func() {
var infoWriter io.Writer = os.Stderr
var ticker <-chan time.Time
if err := action.init(); err != nil {
fail("Initialization failed: %v", err)
}
done, err := action.start(infoWriter)
if err != nil {
fail("Startup failed: %v", err)
}
var bar *pb.ProgressBar
if !*silent && !*noProgress {
ticker = time.Tick(statsFrequency)
bar = action.newProgressBar()
if bar != nil {
bar.Output = os.Stderr
bar.ShowSpeed = true
bar.ManualUpdate = true
bar.SetMaxWidth(78)
bar.Start()
bar.Update()
}
}
if *silent {
infoWriter = ioutil.Discard
}
sigchan := make(chan os.Signal, 1)
signal.Notify(sigchan, syscall.SIGTERM, syscall.SIGKILL, syscall.SIGINT)
LOOP:
for {
select {
case <-ticker:
action.updateProgress(bar)
bar.Update()
case <-sigchan:
bar.Finish()
fmt.Fprintf(os.Stderr, "\nAborting..")
action.abort()
<-done
fmt.Fprintf(os.Stderr, "Aborted.\n")
break LOOP
case err := <-done:
if err != nil {
fail("Processing failed: %v", err)
}
break LOOP
}
}
if bar != nil {
bar.Finish()
}
if !*silent {
action.printFinalStats(infoWriter)
}
}
}
// CheckMetadata downloads the metadata about all of the files currently
// stored on Drive and compares it with the local cache.
func (gd *GDrive) CheckMetadata(filename string, report func(string)) error {
idToFile, err := gd.getIdToFile(filename)
if err != nil {
return err
}
// This will almost certainly take a while, so put up a progress bar.
var bar *pb.ProgressBar
if !gd.quiet {
bar = pb.New(len(idToFile))
bar.ShowBar = true
bar.ShowCounters = false
bar.Output = os.Stderr
bar.Prefix("Checking metadata cache: ")
bar.Start()
}
err = gd.runQuery("trashed=false", func(f *drive.File) {
if file, ok := idToFile[f.Id]; ok {
df := newFile(f.Title, f)
if !filesEqual(df, file) {
report(fmt.Sprintf("%s: metadata mismatch.\nLocal: %+v\nDrive: %+v",
file.Path, file, df))
}
if bar != nil {
bar.Increment()
}
delete(idToFile, f.Id)
} else {
// It'd be preferable to have "sharedWithMe=false" included in
// the query string above, but the combination of that with
// "trashed=false" seems to lead to no results being returned.
if f.Shared == false {
report(fmt.Sprintf("%s: found on Drive, not in local cache [%+v]",
f.Title, f))
}
}
})
for _, f := range idToFile {
report(fmt.Sprintf("%s: found in local cache, not on Drive [%+v]",
f.Path, f))
}
if bar != nil {
bar.Finish()
}
return nil
}
func runClusterBackup(args *docopt.Args) error {
client, err := getClusterClient()
if err != nil {
return err
}
var bar *pb.ProgressBar
var progress backup.ProgressBar
if term.IsTerminal(os.Stderr.Fd()) {
bar = pb.New(0)
bar.SetUnits(pb.U_BYTES)
bar.ShowBar = false
bar.ShowSpeed = true
bar.Output = os.Stderr
bar.Start()
progress = bar
}
var dest io.Writer = os.Stdout
if filename := args.String["--file"]; filename != "" {
f, err := os.Create(filename)
if err != nil {
return err
}
defer f.Close()
dest = f
}
fmt.Fprintln(os.Stderr, "Creating cluster backup...")
if err := backup.Run(client, dest, progress); err != nil {
return err
}
if bar != nil {
bar.Finish()
}
fmt.Fprintln(os.Stderr, "Backup complete.")
return nil
}
func runImport(args *docopt.Args, client controller.Client) error {
var src io.Reader = os.Stdin
if filename := args.String["--file"]; filename != "" {
f, err := os.Open(filename)
if err != nil {
return fmt.Errorf("error opening export file: %s", err)
}
defer f.Close()
src = f
}
tr := tar.NewReader(src)
var (
app *ct.App
release *ct.Release
imageArtifact *ct.Artifact
formation *ct.Formation
routes []router.Route
slug io.Reader
dockerImage struct {
config struct {
Tag string `json:"tag"`
}
archive io.Reader
}
pgDump io.Reader
mysqlDump io.Reader
uploadSize int64
)
numResources := 0
numRoutes := 1
for {
header, err := tr.Next()
if err == io.EOF {
break
} else if err != nil {
return fmt.Errorf("error reading export tar: %s", err)
}
switch path.Base(header.Name) {
case "app.json":
app = &ct.App{}
if err := json.NewDecoder(tr).Decode(app); err != nil {
return fmt.Errorf("error decoding app: %s", err)
}
app.ID = ""
case "release.json":
release = &ct.Release{}
if err := json.NewDecoder(tr).Decode(release); err != nil {
return fmt.Errorf("error decoding release: %s", err)
}
release.ID = ""
release.ArtifactIDs = nil
case "artifact.json":
imageArtifact = &ct.Artifact{}
if err := json.NewDecoder(tr).Decode(imageArtifact); err != nil {
return fmt.Errorf("error decoding image artifact: %s", err)
}
imageArtifact.ID = ""
case "formation.json":
formation = &ct.Formation{}
if err := json.NewDecoder(tr).Decode(formation); err != nil {
return fmt.Errorf("error decoding formation: %s", err)
}
formation.AppID = ""
formation.ReleaseID = ""
case "routes.json":
if err := json.NewDecoder(tr).Decode(&routes); err != nil {
return fmt.Errorf("error decoding routes: %s", err)
}
for _, route := range routes {
route.ID = ""
route.ParentRef = ""
}
case "slug.tar.gz":
f, err := ioutil.TempFile("", "slug.tar.gz")
if err != nil {
return fmt.Errorf("error creating slug tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
if _, err := io.Copy(f, tr); err != nil {
return fmt.Errorf("error reading slug: %s", err)
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking slug tempfile: %s", err)
}
slug = f
uploadSize += header.Size
case "docker-image.json":
if err := json.NewDecoder(tr).Decode(&dockerImage.config); err != nil {
return fmt.Errorf("error decoding docker image json: %s", err)
}
case "docker-image.tar":
f, err := ioutil.TempFile("", "docker-image.tar")
if err != nil {
return fmt.Errorf("error creating docker image tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
if _, err := io.Copy(f, tr); err != nil {
return fmt.Errorf("error reading docker image: %s", err)
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking docker image tempfile: %s", err)
}
dockerImage.archive = f
uploadSize += header.Size
case "postgres.dump":
f, err := ioutil.TempFile("", "postgres.dump")
if err != nil {
return fmt.Errorf("error creating db tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
if _, err := io.Copy(f, tr); err != nil {
return fmt.Errorf("error reading db dump: %s", err)
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking db tempfile: %s", err)
}
pgDump = f
uploadSize += header.Size
case "mysql.dump":
f, err := ioutil.TempFile("", "mysql.dump")
if err != nil {
return fmt.Errorf("error creating db tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
if _, err := io.Copy(f, tr); err != nil {
return fmt.Errorf("error reading db dump: %s", err)
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking db tempfile: %s", err)
}
mysqlDump = f
uploadSize += header.Size
}
}
if app == nil {
return fmt.Errorf("missing app.json")
}
oldName := app.Name
if name := args.String["--name"]; name != "" {
app.Name = name
}
if err := client.CreateApp(app); err != nil {
return fmt.Errorf("error creating app: %s", err)
}
var bar *pb.ProgressBar
if !args.Bool["--quiet"] && uploadSize > 0 && term.IsTerminal(os.Stderr.Fd()) {
bar = pb.New(0)
bar.SetUnits(pb.U_BYTES)
bar.Total = uploadSize
bar.ShowSpeed = true
bar.Output = os.Stderr
bar.Start()
defer bar.Finish()
}
if pgDump != nil && release != nil {
res, err := client.ProvisionResource(&ct.ResourceReq{
ProviderID: "postgres",
Apps: []string{app.ID},
})
if err != nil {
return fmt.Errorf("error provisioning postgres resource: %s", err)
}
numResources++
if release.Env == nil {
release.Env = make(map[string]string, len(res.Env))
}
for k, v := range res.Env {
release.Env[k] = v
}
config, err := getPgRunConfig(client, app.ID, release)
if err != nil {
return fmt.Errorf("error getting postgres config: %s", err)
}
config.Stdin = pgDump
if bar != nil {
config.Stdin = bar.NewProxyReader(config.Stdin)
}
config.Exit = false
if err := pgRestore(client, config); err != nil {
return fmt.Errorf("error restoring postgres database: %s", err)
}
}
if mysqlDump != nil && release != nil {
res, err := client.ProvisionResource(&ct.ResourceReq{
ProviderID: "mysql",
Apps: []string{app.ID},
})
if err != nil {
return fmt.Errorf("error provisioning mysql resource: %s", err)
}
numResources++
if release.Env == nil {
release.Env = make(map[string]string, len(res.Env))
}
for k, v := range res.Env {
release.Env[k] = v
}
config, err := getMysqlRunConfig(client, app.ID, release)
if err != nil {
return fmt.Errorf("error getting mysql config: %s", err)
}
config.Stdin = mysqlDump
if bar != nil {
config.Stdin = bar.NewProxyReader(config.Stdin)
}
config.Exit = false
if err := mysqlRestore(client, config); err != nil {
return fmt.Errorf("error restoring mysql database: %s", err)
}
}
if release != nil && release.Env["FLYNN_REDIS"] != "" {
res, err := client.ProvisionResource(&ct.ResourceReq{
ProviderID: "redis",
Apps: []string{app.ID},
})
if err != nil {
return fmt.Errorf("error provisioning redis resource: %s", err)
}
numResources++
if release.Env == nil {
release.Env = make(map[string]string, len(res.Env))
}
for k, v := range res.Env {
release.Env[k] = v
}
}
uploadSlug := release != nil && imageArtifact != nil && slug != nil
if uploadSlug {
// Use current slugrunner as the artifact
gitreceiveRelease, err := client.GetAppRelease("gitreceive")
if err != nil {
return fmt.Errorf("unable to retrieve gitreceive release: %s", err)
}
if id, ok := gitreceiveRelease.Env["SLUGRUNNER_IMAGE_ID"]; ok {
imageArtifact, err = client.GetArtifact(id)
if err != nil {
return fmt.Errorf("unable to get slugrunner image artifact: %s", err)
}
} else if uri, ok := gitreceiveRelease.Env["SLUGRUNNER_IMAGE_URI"]; ok {
imageArtifact = &ct.Artifact{
Type: host.ArtifactTypeDocker,
URI: uri,
}
} else {
return fmt.Errorf("gitreceive env missing slug runner image")
}
}
if dockerImage.config.Tag != "" && dockerImage.archive != nil {
// load the docker image into the Docker daemon
cmd := exec.Command("docker", "load")
cmd.Stdin = dockerImage.archive
if out, err := cmd.CombinedOutput(); err != nil {
return fmt.Errorf("error running docker load: %s: %q", err, out)
}
// use the tag from the config (which will now be applied to
// the loaded image) to push the image to docker-receive
cluster, err := getCluster()
if err != nil {
return err
}
host, err := cluster.DockerPushHost()
if err != nil {
return err
}
tag := fmt.Sprintf("%s/%s:latest", host, app.Name)
if out, err := exec.Command("docker", "tag", "--force", dockerImage.config.Tag, tag).CombinedOutput(); err != nil {
return fmt.Errorf("error tagging docker image: %s: %q", err, out)
}
artifact, err := dockerPush(client, app.Name, tag)
if err != nil {
return fmt.Errorf("error pushing docker image: %s", err)
}
release.ArtifactIDs = []string{artifact.ID}
} else if imageArtifact != nil {
if imageArtifact.ID == "" {
if err := client.CreateArtifact(imageArtifact); err != nil {
return fmt.Errorf("error creating image artifact: %s", err)
}
}
release.ArtifactIDs = []string{imageArtifact.ID}
}
if release != nil {
for t, proc := range release.Processes {
for i, port := range proc.Ports {
if port.Service != nil && strings.HasPrefix(port.Service.Name, oldName) {
proc.Ports[i].Service.Name = strings.Replace(port.Service.Name, oldName, app.Name, 1)
}
}
release.Processes[t] = proc
}
if err := client.CreateRelease(release); err != nil {
return fmt.Errorf("error creating release: %s", err)
}
if err := client.SetAppRelease(app.ID, release.ID); err != nil {
return fmt.Errorf("error setting app release: %s", err)
}
}
if uploadSlug {
slugURI := fmt.Sprintf("http://blobstore.discoverd/%s/slug.tgz", random.UUID())
config := runConfig{
App: app.ID,
Release: release.ID,
DisableLog: true,
Args: []string{"curl", "--request", "PUT", "--upload-file", "-", slugURI},
Stdin: slug,
Stdout: ioutil.Discard,
Stderr: ioutil.Discard,
}
if bar != nil {
config.Stdin = bar.NewProxyReader(config.Stdin)
}
if err := runJob(client, config); err != nil {
return fmt.Errorf("error uploading slug: %s", err)
}
slugArtifact := &ct.Artifact{
Type: host.ArtifactTypeFile,
URI: slugURI,
}
if err := client.CreateArtifact(slugArtifact); err != nil {
return fmt.Errorf("error creating slug artifact: %s", err)
}
release.ID = ""
release.ArtifactIDs = append(release.ArtifactIDs, slugArtifact.ID)
if release.Meta == nil {
release.Meta = make(map[string]string, 1)
}
release.Meta["git"] = "true"
if err := client.CreateRelease(release); err != nil {
return fmt.Errorf("error creating release: %s", err)
}
if err := client.SetAppRelease(app.ID, release.ID); err != nil {
return fmt.Errorf("error setting app release: %s", err)
}
}
if formation != nil && release != nil {
formation.ReleaseID = release.ID
formation.AppID = app.ID
if err := client.PutFormation(formation); err != nil {
return fmt.Errorf("error creating formation: %s", err)
}
}
if args.Bool["--routes"] {
for _, route := range routes {
if err := client.CreateRoute(app.ID, &route); err != nil {
if e, ok := err.(hh.JSONError); ok && e.Code == hh.ConflictErrorCode {
// If the cluster domain matches then the default route
// exported will conflict with the one created automatically.
continue
}
return fmt.Errorf("error creating route: %s", err)
}
numRoutes++
}
}
fmt.Printf("Imported %s (added %d routes, provisioned %d resources)\n", app.Name, numRoutes, numResources)
return nil
}
// Synchronize a local directory hierarchy with Google Drive.
// localPath is the file or directory to start with, driveRoot is
// the directory into which the file/directory will be sent
func syncHierarchyUp(localPath string, driveRoot string, encrypt bool, trustTimes bool,
maxSymlinkDepth int) int {
if encrypt && key == nil {
key = decryptEncryptionKey()
}
fileMappings, nUploadErrors := compileUploadFileTree(localPath, driveRoot,
encrypt, trustTimes, maxSymlinkDepth)
if len(fileMappings) == 0 {
message("No files to be uploaded.")
return 0
}
nBytesToUpload := int64(0)
for _, info := range fileMappings {
if !info.LocalFileInfo.IsDir() {
nBytesToUpload += info.LocalFileInfo.Size()
}
}
// Given the list of files to sync, first find all of the directories and
// then either get or create a Drive folder for each one.
directoryMappingMap := make(map[string]localToRemoteFileMapping)
var directoryNames []string
for _, localfile := range fileMappings {
if localfile.LocalFileInfo.IsDir() {
directoryNames = append(directoryNames, localfile.DrivePath)
directoryMappingMap[localfile.DrivePath] = localfile
}
}
// Now sort the directories by name, which ensures that the parent of each
// directory has already been created if we need to create its children.
sort.Strings(directoryNames)
if len(directoryNames) > 0 {
// Actually create/update the directories.
var dirProgressBar *pb.ProgressBar
if !quiet {
dirProgressBar = pb.New(len(directoryNames))
dirProgressBar.Output = os.Stderr
dirProgressBar.Prefix("Directories: ")
dirProgressBar.Start()
}
// Sync each of the directories, which serves to create any missing ones.
for _, dirName := range directoryNames {
file := directoryMappingMap[dirName]
err := syncFileUp(file.LocalPath, file.LocalFileInfo, file.DrivePath,
encrypt, dirProgressBar)
if err != nil {
// Errors creating directories are basically unrecoverable,
// as they'll prevent us from later uploading any files in
// them.
printErrorAndExit(err)
}
}
if dirProgressBar != nil {
dirProgressBar.Finish()
}
}
var fileProgressBar *pb.ProgressBar
if !quiet {
fileProgressBar = pb.New64(nBytesToUpload).SetUnits(pb.U_BYTES)
fileProgressBar.Output = os.Stderr
fileProgressBar.Prefix("Files: ")
fileProgressBar.Start()
}
// Sort the files by size, small to large.
sort.Sort(localToRemoteBySize(fileMappings))
// The two indices uploadFrontIndex and uploadBackIndex point to the
// range of elements in the fileMappings array that haven't yet been
// uploaded.
uploadFrontIndex := 0
uploadBackIndex := len(fileMappings) - 1
// First, upload any large files that will use the resumable upload
// protocol using a single thread; more threads here doesn't generally
// help improve bandwidth utilizaiton and seems to make rate limit
// errors from the Drive API more frequent...
for ; uploadBackIndex >= 0; uploadBackIndex-- {
if fileMappings[uploadBackIndex].LocalFileInfo.Size() < resumableUploadMinSize {
break
}
fm := fileMappings[uploadBackIndex]
if fm.LocalFileInfo.IsDir() {
continue
}
if err := syncFileUp(fm.LocalPath, fm.LocalFileInfo, fm.DrivePath, encrypt,
fileProgressBar); err != nil {
addErrorAndPrintMessage(&nUploadErrors, fm.LocalPath, err)
}
}
// Upload worker threads send a value over this channel when
// they're done; the code that launches them waits for all of them
// to do so before returning.
doneChan := make(chan int, nWorkers)
// Now that multiple threads are running, we need a mutex to protect
// access to uploadFrontIndex and uploadBackIndex.
var uploadIndexMutex sync.Mutex
// All but one of the upload threads will grab files to upload starting
// from the begining of the fileMappings array, thus doing the smallest
// files first; one thread starts from the back of the array, doing the
// largest files first. In this way, the large files help saturate the
// available upload bandwidth and hide the fixed overhead of creating
// the smaller files.
uploadWorker := func(startFromFront bool) {
for {
uploadIndexMutex.Lock()
if uploadFrontIndex > uploadBackIndex {
// All files have been uploaded.
debug.Printf("All files uploaded [%d,%d]; exiting",
uploadFrontIndex, uploadBackIndex)
uploadIndexMutex.Unlock()
doneChan <- 1
break
}
// Get the index into fileMappings for the next file this
// worker should upload.
var index int
if startFromFront {
index = uploadFrontIndex
uploadFrontIndex++
} else {
index = uploadBackIndex
uploadBackIndex--
}
uploadIndexMutex.Unlock()
fm := fileMappings[index]
if fm.LocalFileInfo.IsDir() {
// Directories have already been taken care of.
continue
}
err := syncFileUp(fm.LocalPath, fm.LocalFileInfo, fm.DrivePath, encrypt,
fileProgressBar)
if err != nil {
atomic.AddInt32(&nUploadErrors, 1)
fmt.Fprintf(os.Stderr, "\nskicka: %s: %v\n", fm.LocalPath, err)
}
}
}
// Launch the workers.
for i := 0; i < nWorkers; i++ {
// All workers except the first one start from the front of
// the array.
go uploadWorker(i != 0)
}
// Wait for all of the workers to finish.
for i := 0; i < nWorkers; i++ {
<-doneChan
}
if fileProgressBar != nil {
fileProgressBar.Finish()
}
if nUploadErrors > 0 {
fmt.Fprintf(os.Stderr, "skicka: %d files not uploaded due to errors. "+
"This may be a transient failure; try uploading again.\n", nUploadErrors)
}
return int(nUploadErrors)
}
func (gd *GDrive) getMetadataChanges(svc *drive.Service, startChangeId int64,
changeChan chan<- []*drive.Change, errorChan chan<- error) {
var about *drive.About
var err error
// Get the Drive About information in order to figure out how many
// changes we need to download to get up to date.
for try := 0; ; try++ {
about, err = svc.About.Get().Do()
if err == nil {
break
} else {
err = gd.tryToHandleDriveAPIError(err, try)
}
if err != nil {
errorChan <- err
return
}
}
// Don't clutter the output with a progress bar unless it looks like
// downloading changes may take a while.
// TODO: consider using timer.AfterFunc to put up the progress bar if
// we're not done after a few seconds? It's not clear if this is worth
// the trouble.
var bar *pb.ProgressBar
numChanges := about.LargestChangeId - startChangeId
if numChanges > 1000 && !gd.quiet {
bar = pb.New64(numChanges)
bar.ShowBar = true
bar.ShowCounters = false
bar.Output = os.Stderr
bar.Prefix("Updating metadata cache: ")
bar.Start()
}
pageToken := ""
try := 0
// Keep asking Drive for more changes until we get through them all.
for {
// Only ask for the fields in the drive.Change structure that we
// actually to be filled in to save some bandwidth...
fields := []googleapi.Field{"nextPageToken",
"items/id", "items/fileId", "items/deleted",
"items/file/id", "items/file/parents", "items/file/title",
"items/file/fileSize", "items/file/mimeType", "items/file/properties",
"items/file/modifiedDate", "items/file/md5Checksum", "items/file/labels"}
q := svc.Changes.List().MaxResults(1000).IncludeSubscribed(false).Fields(fields...)
if startChangeId >= 0 {
q = q.StartChangeId(startChangeId + 1)
}
if pageToken != "" {
q = q.PageToken(pageToken)
}
r, err := q.Do()
if err != nil {
err = gd.tryToHandleDriveAPIError(err, try)
if err != nil {
errorChan <- err
return
}
try++
continue
}
// Success. Reset the try counter in case we had errors leading up
// to this.
try = 0
if len(r.Items) > 0 {
// Send the changes along to the goroutine that's updating the
// local cache.
changeChan <- r.Items
if bar != nil {
bar.Set(int(r.Items[len(r.Items)-1].Id - startChangeId))
}
}
pageToken = string(r.NextPageToken)
if pageToken == "" {
break
}
}
// Signal that no more changes are coming.
close(changeChan)
if bar != nil {
bar.Finish()
}
gd.debug("Done updating metadata from Drive")
}
func runImport(args *docopt.Args, client controller.Client) error {
jobs, err := strconv.Atoi(args.String["--jobs"])
if err != nil {
return err
}
var src io.Reader = os.Stdin
if filename := args.String["--file"]; filename != "" {
f, err := os.Open(filename)
if err != nil {
return fmt.Errorf("error opening export file: %s", err)
}
defer f.Close()
src = f
}
tr := tar.NewReader(src)
var (
app *ct.App
release *ct.Release
artifacts []*ct.Artifact
formation *ct.Formation
routes []router.Route
legacySlug io.Reader
dockerImage struct {
config struct {
Tag string `json:"tag"`
}
archive io.Reader
}
pgDump io.Reader
mysqlDump io.Reader
uploadSize int64
)
numResources := 0
numRoutes := 1
layers := make(map[string]io.Reader)
for {
header, err := tr.Next()
if err == io.EOF {
break
} else if err != nil {
return fmt.Errorf("error reading export tar: %s", err)
}
filename := path.Base(header.Name)
if strings.HasSuffix(filename, ".layer") {
f, err := ioutil.TempFile("", "flynn-layer-")
if err != nil {
return fmt.Errorf("error creating layer tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
if _, err := io.Copy(f, tr); err != nil {
return fmt.Errorf("error reading %s: %s", header.Name, err)
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking layer tempfile: %s", err)
}
layers[strings.TrimSuffix(filename, ".layer")] = f
uploadSize += header.Size
continue
}
switch filename {
case "app.json":
app = &ct.App{}
if err := json.NewDecoder(tr).Decode(app); err != nil {
return fmt.Errorf("error decoding app: %s", err)
}
app.ID = ""
case "release.json":
release = &ct.Release{}
if err := json.NewDecoder(tr).Decode(release); err != nil {
return fmt.Errorf("error decoding release: %s", err)
}
release.ID = ""
release.ArtifactIDs = nil
case "artifacts.json":
if err := json.NewDecoder(tr).Decode(&artifacts); err != nil {
return fmt.Errorf("error decoding artifacts: %s", err)
}
case "formation.json":
formation = &ct.Formation{}
if err := json.NewDecoder(tr).Decode(formation); err != nil {
return fmt.Errorf("error decoding formation: %s", err)
}
formation.AppID = ""
formation.ReleaseID = ""
case "routes.json":
if err := json.NewDecoder(tr).Decode(&routes); err != nil {
return fmt.Errorf("error decoding routes: %s", err)
}
for _, route := range routes {
route.ID = ""
route.ParentRef = ""
}
case "slug.tar.gz":
f, err := ioutil.TempFile("", "slug.tar.gz")
if err != nil {
return fmt.Errorf("error creating slug tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
if _, err := io.Copy(f, tr); err != nil {
return fmt.Errorf("error reading slug: %s", err)
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking slug tempfile: %s", err)
}
legacySlug = f
uploadSize += header.Size
case "docker-image.json":
if err := json.NewDecoder(tr).Decode(&dockerImage.config); err != nil {
return fmt.Errorf("error decoding docker image json: %s", err)
}
case "docker-image.tar":
f, err := ioutil.TempFile("", "docker-image.tar")
if err != nil {
return fmt.Errorf("error creating docker image tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
if _, err := io.Copy(f, tr); err != nil {
return fmt.Errorf("error reading docker image: %s", err)
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking docker image tempfile: %s", err)
}
dockerImage.archive = f
uploadSize += header.Size
case "postgres.dump":
f, err := ioutil.TempFile("", "postgres.dump")
if err != nil {
return fmt.Errorf("error creating db tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
if _, err := io.Copy(f, tr); err != nil {
return fmt.Errorf("error reading db dump: %s", err)
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking db tempfile: %s", err)
}
pgDump = f
uploadSize += header.Size
case "mysql.dump":
f, err := ioutil.TempFile("", "mysql.dump")
if err != nil {
return fmt.Errorf("error creating db tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
if _, err := io.Copy(f, tr); err != nil {
return fmt.Errorf("error reading db dump: %s", err)
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking db tempfile: %s", err)
}
mysqlDump = f
uploadSize += header.Size
}
}
if app == nil {
return fmt.Errorf("missing app.json")
}
oldName := app.Name
if name := args.String["--name"]; name != "" {
app.Name = name
}
if err := client.CreateApp(app); err != nil {
return fmt.Errorf("error creating app: %s", err)
}
var bar *pb.ProgressBar
if !args.Bool["--quiet"] && uploadSize > 0 && term.IsTerminal(os.Stderr.Fd()) {
bar = pb.New(0)
bar.SetUnits(pb.U_BYTES)
bar.Total = uploadSize
bar.ShowSpeed = true
bar.Output = os.Stderr
bar.Start()
defer bar.Finish()
}
if pgDump != nil && release != nil {
res, err := client.ProvisionResource(&ct.ResourceReq{
ProviderID: "postgres",
Apps: []string{app.ID},
})
if err != nil {
return fmt.Errorf("error provisioning postgres resource: %s", err)
}
numResources++
if release.Env == nil {
release.Env = make(map[string]string, len(res.Env))
}
for k, v := range res.Env {
release.Env[k] = v
}
config, err := getPgRunConfig(client, app.ID, release)
if err != nil {
return fmt.Errorf("error getting postgres config: %s", err)
}
config.Stdin = pgDump
if bar != nil {
config.Stdin = bar.NewProxyReader(config.Stdin)
}
config.Exit = false
if err := pgRestore(client, config, jobs); err != nil {
return fmt.Errorf("error restoring postgres database: %s", err)
}
}
if mysqlDump != nil && release != nil {
res, err := client.ProvisionResource(&ct.ResourceReq{
ProviderID: "mysql",
Apps: []string{app.ID},
})
if err != nil {
return fmt.Errorf("error provisioning mysql resource: %s", err)
}
numResources++
if release.Env == nil {
release.Env = make(map[string]string, len(res.Env))
}
for k, v := range res.Env {
release.Env[k] = v
}
config, err := getMysqlRunConfig(client, app.ID, release)
if err != nil {
return fmt.Errorf("error getting mysql config: %s", err)
}
config.Stdin = mysqlDump
if bar != nil {
config.Stdin = bar.NewProxyReader(config.Stdin)
}
config.Exit = false
if err := mysqlRestore(client, config); err != nil {
return fmt.Errorf("error restoring mysql database: %s", err)
}
}
if release != nil && release.Env["FLYNN_REDIS"] != "" {
res, err := client.ProvisionResource(&ct.ResourceReq{
ProviderID: "redis",
Apps: []string{app.ID},
})
if err != nil {
return fmt.Errorf("error provisioning redis resource: %s", err)
}
numResources++
if release.Env == nil {
release.Env = make(map[string]string, len(res.Env))
}
for k, v := range res.Env {
release.Env[k] = v
}
}
var uploadLegacySlug bool
if legacySlug != nil {
if err := func() error {
gitreceiveRelease, err := client.GetAppRelease("gitreceive")
if err != nil {
return fmt.Errorf("unable to retrieve gitreceive release: %s", err)
}
// handle legacy clusters which reference Docker image URIs
if uri, ok := gitreceiveRelease.Env["SLUGRUNNER_IMAGE_URI"]; ok {
artifact := &ct.Artifact{
Type: ct.DeprecatedArtifactTypeDocker,
URI: uri,
}
if err := client.CreateArtifact(artifact); err != nil {
return fmt.Errorf("error creating image artifact: %s", err)
}
uploadLegacySlug = true
release.ArtifactIDs = []string{artifact.ID}
return nil
}
slugBuilderID, ok := gitreceiveRelease.Env["SLUGBUILDER_IMAGE_ID"]
if !ok {
return fmt.Errorf("gitreceive env missing slugbuilder image")
}
slugRunnerID, ok := gitreceiveRelease.Env["SLUGRUNNER_IMAGE_ID"]
if !ok {
return fmt.Errorf("gitreceive env missing slugrunner image")
}
// handle legacy tarball based slugbuilders (which are Docker based)
slugBuilderImage, err := client.GetArtifact(slugBuilderID)
if err != nil {
return fmt.Errorf("unable to get slugbuilder image artifact: %s", err)
}
if slugBuilderImage.Type == ct.DeprecatedArtifactTypeDocker {
uploadLegacySlug = true
release.ArtifactIDs = []string{slugRunnerID}
return nil
}
// Use slugbuilder to convert the legacy slug to a
// Flynn squashfs image
slugImageID := random.UUID()
config := runConfig{
App: app.ID,
Release: gitreceiveRelease.ID,
ReleaseEnv: true,
Artifacts: []string{slugBuilderID},
DisableLog: true,
Args: []string{"/bin/convert-legacy-slug.sh"},
Stdin: legacySlug,
Stdout: ioutil.Discard,
Stderr: ioutil.Discard,
Env: map[string]string{"SLUG_IMAGE_ID": slugImageID},
}
if bar != nil {
config.Stdin = bar.NewProxyReader(config.Stdin)
}
if err := runJob(client, config); err != nil {
return fmt.Errorf("error uploading slug: %s", err)
}
release.ID = ""
release.ArtifactIDs = []string{slugRunnerID, slugImageID}
if release.Meta == nil {
release.Meta = make(map[string]string, 1)
}
release.Meta["git"] = "true"
return nil
}(); err != nil {
return err
}
} else if dockerImage.config.Tag != "" && dockerImage.archive != nil {
// load the docker image into the Docker daemon
cmd := exec.Command("docker", "load")
cmd.Stdin = dockerImage.archive
if out, err := cmd.CombinedOutput(); err != nil {
return fmt.Errorf("error running docker load: %s: %q", err, out)
}
// use the tag from the config (which will now be applied to
// the loaded image) to push the image to docker-receive
cluster, err := getCluster()
if err != nil {
return err
}
host, err := cluster.DockerPushHost()
if err != nil {
return err
}
tag := fmt.Sprintf("%s/%s:flynn-import-%s", host, app.Name, random.String(8))
if out, err := exec.Command("docker", "tag", dockerImage.config.Tag, tag).CombinedOutput(); err != nil {
return fmt.Errorf("error tagging docker image: %s: %q", err, out)
}
artifact, err := dockerPush(client, app.Name, tag)
if err != nil {
return fmt.Errorf("error pushing docker image: %s", err)
}
release.ArtifactIDs = []string{artifact.ID}
} else if len(artifacts) > 0 {
// import blobstore Flynn artifacts
blobstoreRelease, err := client.GetAppRelease("blobstore")
if err != nil {
return fmt.Errorf("unable to retrieve blobstore release: %s", err)
}
upload := func(id, url string) error {
layer, ok := layers[id]
if !ok {
return fmt.Errorf("missing layer in export: %s", id)
}
config := runConfig{
App: app.ID,
Release: blobstoreRelease.ID,
DisableLog: true,
Args: []string{"curl", "--request", "PUT", "--upload-file", "-", url},
Stdin: layer,
Stdout: ioutil.Discard,
Stderr: ioutil.Discard,
}
if bar != nil {
config.Stdin = bar.NewProxyReader(config.Stdin)
}
if err := runJob(client, config); err != nil {
return fmt.Errorf("error uploading layer: %s", err)
}
return nil
}
release.ArtifactIDs = make([]string, len(artifacts))
for i, artifact := range artifacts {
if artifact.Type != ct.ArtifactTypeFlynn {
continue
}
if !artifact.Blobstore() {
continue
}
for _, rootfs := range artifact.Manifest().Rootfs {
for _, layer := range rootfs.Layers {
if err := upload(layer.ID, artifact.LayerURL(layer)); err != nil {
return err
}
}
}
artifact.ID = ""
if err := client.CreateArtifact(artifact); err != nil {
return fmt.Errorf("error creating artifact: %s", err)
}
release.ArtifactIDs[i] = artifact.ID
}
// use the current slugrunner image for slug releases
if release.IsGitDeploy() {
gitreceiveRelease, err := client.GetAppRelease("gitreceive")
if err != nil {
return fmt.Errorf("unable to retrieve gitreceive release: %s", err)
}
slugRunnerID, ok := gitreceiveRelease.Env["SLUGRUNNER_IMAGE_ID"]
if !ok {
return fmt.Errorf("gitreceive env missing slugrunner image")
}
release.ArtifactIDs[0] = slugRunnerID
}
}
if release != nil {
for t, proc := range release.Processes {
// update legacy slug releases to use Args rather than the
// deprecated Entrypoint and Cmd fields
if release.IsGitDeploy() && len(proc.Args) == 0 {
proc.Args = append([]string{"/runner/init"}, proc.DeprecatedCmd...)
proc.DeprecatedCmd = nil
}
for i, port := range proc.Ports {
if port.Service != nil && strings.HasPrefix(port.Service.Name, oldName) {
proc.Ports[i].Service.Name = strings.Replace(port.Service.Name, oldName, app.Name, 1)
}
}
release.Processes[t] = proc
}
if err := client.CreateRelease(release); err != nil {
return fmt.Errorf("error creating release: %s", err)
}
if err := client.SetAppRelease(app.ID, release.ID); err != nil {
return fmt.Errorf("error setting app release: %s", err)
}
}
if uploadLegacySlug {
slugURI := fmt.Sprintf("http://blobstore.discoverd/%s/slug.tgz", random.UUID())
config := runConfig{
App: app.ID,
Release: release.ID,
DisableLog: true,
Args: []string{"curl", "--request", "PUT", "--upload-file", "-", slugURI},
Stdin: legacySlug,
Stdout: ioutil.Discard,
Stderr: ioutil.Discard,
}
if bar != nil {
config.Stdin = bar.NewProxyReader(config.Stdin)
}
if err := runJob(client, config); err != nil {
return fmt.Errorf("error uploading slug: %s", err)
}
slugArtifact := &ct.Artifact{
Type: ct.DeprecatedArtifactTypeFile,
URI: slugURI,
}
if err := client.CreateArtifact(slugArtifact); err != nil {
return fmt.Errorf("error creating slug artifact: %s", err)
}
release.ID = ""
release.ArtifactIDs = append(release.ArtifactIDs, slugArtifact.ID)
if release.Meta == nil {
release.Meta = make(map[string]string, 1)
}
release.Meta["git"] = "true"
if err := client.CreateRelease(release); err != nil {
return fmt.Errorf("error creating release: %s", err)
}
if err := client.SetAppRelease(app.ID, release.ID); err != nil {
return fmt.Errorf("error setting app release: %s", err)
}
}
if formation != nil && release != nil {
formation.ReleaseID = release.ID
formation.AppID = app.ID
if err := client.PutFormation(formation); err != nil {
return fmt.Errorf("error creating formation: %s", err)
}
}
if args.Bool["--routes"] {
for _, route := range routes {
if err := client.CreateRoute(app.ID, &route); err != nil {
if e, ok := err.(hh.JSONError); ok && e.Code == hh.ConflictErrorCode {
// If the cluster domain matches then the default route
// exported will conflict with the one created automatically.
continue
}
return fmt.Errorf("error creating route: %s", err)
}
numRoutes++
}
}
fmt.Printf("Imported %s (added %d routes, provisioned %d resources)\n", app.Name, numRoutes, numResources)
return nil
}