func (d *Downloader) downloadImage(artifact *ct.Artifact, info chan *ct.ImagePullInfo) error {
info <- &ct.ImagePullInfo{
Name: artifact.Meta["flynn.component"],
Type: ct.ImagePullTypeImage,
Artifact: artifact,
}
for _, rootfs := range artifact.Manifest().Rootfs {
for _, layer := range rootfs.Layers {
if layer.Type != ct.ImageLayerTypeSquashfs {
continue
}
info <- &ct.ImagePullInfo{
Name: artifact.Meta["flynn.component"],
Type: ct.ImagePullTypeLayer,
Layer: layer,
}
if err := d.downloadSquashfsLayer(layer, artifact.LayerURL(layer), artifact.Meta); err != nil {
return fmt.Errorf("error downloading layer: %s", err)
}
}
}
return nil
}
func (e *Exporter) exportImage(name string, artifact *ct.Artifact) error {
log := e.log.New("name", name)
for _, rootfs := range artifact.Manifest().Rootfs {
for _, layer := range rootfs.Layers {
log.Info("exporting layer", "id", layer.ID)
if err := e.exportLayer(layer); err != nil {
log.Error("error exporting layer", "id", layer.ID, "err", err)
return err
}
}
}
path := e.imagePath(artifact.Manifest().ID())
if _, err := os.Stat(path); err == nil {
log.Info("manifest already exists")
return nil
}
log.Info("writing image manifest", "path", path)
if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
log.Error("error writing image manifest", "path", path, "err", err)
return err
}
if err := ioutil.WriteFile(path, artifact.RawManifest, 0644); err != nil {
log.Error("error writing image manifest", "path", path, "err", err)
return err
}
return nil
}
func (s *S) createTestArtifact(c *C, in *ct.Artifact) *ct.Artifact {
if in.Type == "" {
in.Type = "docker"
}
if in.URI == "" {
in.URI = fmt.Sprintf("https://example.com/%s", random.String(8))
}
c.Assert(s.c.CreateArtifact(in), IsNil)
return in
}
func (s *S) createTestArtifact(c *C, in *ct.Artifact) *ct.Artifact {
if in.Type == "" {
in.Type = ct.ArtifactTypeFlynn
in.RawManifest = ct.ImageManifest{
Type: ct.ImageManifestTypeV1,
}.RawManifest()
}
if in.URI == "" {
in.URI = fmt.Sprintf("https://example.com/%s", random.String(8))
}
c.Assert(s.c.CreateArtifact(in), IsNil)
return in
}
func downloadManifest(artifact *ct.Artifact) error {
verifier, err := verify.NewVerifier(artifact.Hashes, artifact.Size)
if err != nil {
return err
}
res, err := hh.RetryClient.Get(artifact.URI)
if err != nil {
return err
}
defer res.Body.Close()
if res.StatusCode != http.StatusOK {
return fmt.Errorf("unexpected HTTP status: %s", res.Status)
}
r := verifier.Reader(res.Body)
data, err := ioutil.ReadAll(r)
if err != nil {
return err
}
if err := verifier.Verify(); err != nil {
return err
}
artifact.RawManifest = data
return nil
}
func deployApp(client controller.Client, app *ct.App, image *ct.Artifact, updateFn updater.UpdateReleaseFn, log log15.Logger) error {
release, err := client.GetAppRelease(app.ID)
if err != nil {
log.Error("error getting release", "err", err)
return err
}
if len(release.ArtifactIDs) == 0 {
return errDeploySkipped{"release has no artifacts"}
}
artifact, err := client.GetArtifact(release.ArtifactIDs[0])
if err != nil {
log.Error("error getting release artifact", "err", err)
return err
}
if !app.System() && release.IsGitDeploy() {
if artifact.Meta["flynn.component"] != "slugrunner" {
return errDeploySkipped{"app not using slugrunner image"}
}
}
skipDeploy := artifact.Manifest().ID() == image.Manifest().ID()
if updateImageIDs(release.Env) {
skipDeploy = false
}
if skipDeploy {
return errDeploySkipped{"app is already using latest images"}
}
if err := client.CreateArtifact(image); err != nil {
log.Error("error creating artifact", "err", err)
return err
}
release.ID = ""
release.ArtifactIDs[0] = image.ID
if updateFn != nil {
updateFn(release)
}
if err := client.CreateRelease(release); err != nil {
log.Error("error creating new release", "err", err)
return err
}
timeoutCh := make(chan struct{})
time.AfterFunc(deployTimeout, func() { close(timeoutCh) })
if err := client.DeployAppRelease(app.ID, release.ID, timeoutCh); err != nil {
log.Error("error deploying app", "err", err)
return err
}
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
}
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
artifact *ct.Artifact
formation *ct.Formation
routes []router.Route
slug io.Reader
pgDump 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.ArtifactID = ""
case "artifact.json":
artifact = &ct.Artifact{}
if err := json.NewDecoder(tr).Decode(artifact); err != nil {
return fmt.Errorf("error decoding artifact: %s", err)
}
artifact.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 "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
}
}
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 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 && release.Env["SLUG_URL"] != "" && artifact != 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)
}
artifact = &ct.Artifact{
Type: "docker",
URI: gitreceiveRelease.Env["SLUGRUNNER_IMAGE_URI"],
}
if artifact.URI == "" {
return fmt.Errorf("gitreceive env missing SLUGRUNNER_IMAGE_URI")
}
release.Env["SLUG_URL"] = fmt.Sprintf("http://blobstore.discoverd/%s.tgz", random.UUID())
}
if artifact != nil {
if err := client.CreateArtifact(artifact); err != nil {
return fmt.Errorf("error creating artifact: %s", err)
}
release.ArtifactID = artifact.ID
}
if release != nil {
for t, proc := range release.Processes {
for i, port := range proc.Ports {
if port.Service != nil && port.Service.Name == oldName+"-web" {
proc.Ports[i].Service.Name = app.Name + "-web"
}
}
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 {
config := runConfig{
App: app.ID,
Release: release.ID,
DisableLog: true,
Entrypoint: []string{"curl"},
Args: []string{"--request", "PUT", "--upload-file", "-", release.Env["SLUG_URL"]},
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)
}
}
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
}