577 lines
18 KiB
Go
577 lines
18 KiB
Go
package compat
|
||
|
||
import (
|
||
"encoding/json"
|
||
"fmt"
|
||
"io/ioutil"
|
||
"net/http"
|
||
"os"
|
||
"strings"
|
||
|
||
"github.com/containers/buildah"
|
||
"github.com/containers/common/libimage"
|
||
"github.com/containers/common/pkg/config"
|
||
"github.com/containers/common/pkg/filters"
|
||
"github.com/containers/image/v5/manifest"
|
||
"github.com/containers/image/v5/types"
|
||
"github.com/containers/podman/v4/libpod"
|
||
"github.com/containers/podman/v4/pkg/api/handlers"
|
||
"github.com/containers/podman/v4/pkg/api/handlers/utils"
|
||
api "github.com/containers/podman/v4/pkg/api/types"
|
||
"github.com/containers/podman/v4/pkg/auth"
|
||
"github.com/containers/podman/v4/pkg/domain/entities"
|
||
"github.com/containers/podman/v4/pkg/domain/infra/abi"
|
||
"github.com/containers/storage"
|
||
"github.com/gorilla/schema"
|
||
"github.com/opencontainers/go-digest"
|
||
"github.com/pkg/errors"
|
||
"github.com/sirupsen/logrus"
|
||
)
|
||
|
||
// mergeNameAndTagOrDigest creates an image reference as string from the
|
||
// provided image name and tagOrDigest which can be a tag, a digest or empty.
|
||
func mergeNameAndTagOrDigest(name, tagOrDigest string) string {
|
||
if len(tagOrDigest) == 0 {
|
||
return name
|
||
}
|
||
|
||
separator := ":" // default to tag
|
||
if _, err := digest.Parse(tagOrDigest); err == nil {
|
||
// We have a digest, so let's change the separator.
|
||
separator = "@"
|
||
}
|
||
return fmt.Sprintf("%s%s%s", name, separator, tagOrDigest)
|
||
}
|
||
|
||
func ExportImage(w http.ResponseWriter, r *http.Request) {
|
||
// 200 ok
|
||
// 500 server
|
||
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
||
|
||
tmpfile, err := ioutil.TempFile("", "api.tar")
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "unable to create tempfile"))
|
||
return
|
||
}
|
||
defer os.Remove(tmpfile.Name())
|
||
|
||
name := utils.GetName(r)
|
||
possiblyNormalizedName, err := utils.NormalizeToDockerHub(r, name)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "error normalizing image"))
|
||
return
|
||
}
|
||
|
||
imageEngine := abi.ImageEngine{Libpod: runtime}
|
||
|
||
saveOptions := entities.ImageSaveOptions{
|
||
Format: "docker-archive",
|
||
Output: tmpfile.Name(),
|
||
}
|
||
|
||
if err := imageEngine.Save(r.Context(), possiblyNormalizedName, nil, saveOptions); err != nil {
|
||
if errors.Cause(err) == storage.ErrImageUnknown {
|
||
utils.ImageNotFound(w, name, errors.Wrapf(err, "failed to find image %s", name))
|
||
return
|
||
}
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "unable to create tempfile"))
|
||
return
|
||
}
|
||
|
||
if err := tmpfile.Close(); err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "unable to close tempfile"))
|
||
return
|
||
}
|
||
|
||
rdr, err := os.Open(tmpfile.Name())
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "failed to read the exported tarfile"))
|
||
return
|
||
}
|
||
defer rdr.Close()
|
||
utils.WriteResponse(w, http.StatusOK, rdr)
|
||
}
|
||
|
||
func CommitContainer(w http.ResponseWriter, r *http.Request) {
|
||
decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
|
||
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
||
|
||
query := struct {
|
||
Author string `schema:"author"`
|
||
Changes []string `schema:"changes"`
|
||
Comment string `schema:"comment"`
|
||
Container string `schema:"container"`
|
||
Pause bool `schema:"pause"`
|
||
Squash bool `schema:"squash"`
|
||
Repo string `schema:"repo"`
|
||
Tag string `schema:"tag"`
|
||
// fromSrc string # fromSrc is currently unused
|
||
}{
|
||
Tag: "latest",
|
||
}
|
||
|
||
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
|
||
utils.Error(w, http.StatusBadRequest, errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
|
||
return
|
||
}
|
||
rtc, err := runtime.GetConfig()
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "Decode()"))
|
||
return
|
||
}
|
||
sc := runtime.SystemContext()
|
||
options := libpod.ContainerCommitOptions{
|
||
Pause: true,
|
||
}
|
||
options.CommitOptions = buildah.CommitOptions{
|
||
SignaturePolicyPath: rtc.Engine.SignaturePolicyPath,
|
||
ReportWriter: os.Stderr,
|
||
SystemContext: sc,
|
||
PreferredManifestType: manifest.DockerV2Schema2MediaType,
|
||
}
|
||
|
||
input := handlers.CreateContainerConfig{}
|
||
if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "Decode()"))
|
||
return
|
||
}
|
||
|
||
options.Message = query.Comment
|
||
options.Author = query.Author
|
||
options.Pause = query.Pause
|
||
options.Squash = query.Squash
|
||
for _, change := range query.Changes {
|
||
options.Changes = append(options.Changes, strings.Split(change, "\n")...)
|
||
}
|
||
ctr, err := runtime.LookupContainer(query.Container)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusNotFound, err)
|
||
return
|
||
}
|
||
|
||
var destImage string
|
||
if len(query.Repo) > 1 {
|
||
destImage = fmt.Sprintf("%s:%s", query.Repo, query.Tag)
|
||
possiblyNormalizedName, err := utils.NormalizeToDockerHub(r, destImage)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "error normalizing image"))
|
||
return
|
||
}
|
||
destImage = possiblyNormalizedName
|
||
}
|
||
|
||
commitImage, err := ctr.Commit(r.Context(), destImage, options)
|
||
if err != nil && !strings.Contains(err.Error(), "is not running") {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrapf(err, "CommitFailure"))
|
||
return
|
||
}
|
||
utils.WriteResponse(w, http.StatusCreated, handlers.IDResponse{ID: commitImage.ID()}) // nolint
|
||
}
|
||
|
||
func CreateImageFromSrc(w http.ResponseWriter, r *http.Request) {
|
||
// 200 no error
|
||
// 404 repo does not exist or no read access
|
||
// 500 internal
|
||
decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
|
||
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
||
|
||
query := struct {
|
||
Changes []string `schema:"changes"`
|
||
FromSrc string `schema:"fromSrc"`
|
||
Message string `schema:"message"`
|
||
Platform string `schema:"platform"`
|
||
Repo string `shchema:"repo"`
|
||
}{
|
||
// This is where you can override the golang default value for one of fields
|
||
}
|
||
|
||
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
|
||
utils.Error(w, http.StatusBadRequest, errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
|
||
return
|
||
}
|
||
// fromSrc – Source to import. The value may be a URL from which the image can be retrieved or - to read the image from the request body. This parameter may only be used when importing an image.
|
||
source := query.FromSrc
|
||
if source == "-" {
|
||
f, err := ioutil.TempFile("", "api_load.tar")
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "failed to create tempfile"))
|
||
return
|
||
}
|
||
|
||
source = f.Name()
|
||
if err := SaveFromBody(f, r); err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "failed to write temporary file"))
|
||
}
|
||
}
|
||
|
||
reference := query.Repo
|
||
if query.Repo != "" {
|
||
possiblyNormalizedName, err := utils.NormalizeToDockerHub(r, reference)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "error normalizing image"))
|
||
return
|
||
}
|
||
reference = possiblyNormalizedName
|
||
}
|
||
|
||
platformSpecs := strings.Split(query.Platform, "/")
|
||
opts := entities.ImageImportOptions{
|
||
Source: source,
|
||
Changes: query.Changes,
|
||
Message: query.Message,
|
||
Reference: reference,
|
||
OS: platformSpecs[0],
|
||
}
|
||
if len(platformSpecs) > 1 {
|
||
opts.Architecture = platformSpecs[1]
|
||
}
|
||
|
||
imageEngine := abi.ImageEngine{Libpod: runtime}
|
||
report, err := imageEngine.Import(r.Context(), opts)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "unable to import tarball"))
|
||
return
|
||
}
|
||
// Success
|
||
utils.WriteResponse(w, http.StatusOK, struct {
|
||
Status string `json:"status"`
|
||
Progress string `json:"progress"`
|
||
ProgressDetail map[string]string `json:"progressDetail"`
|
||
Id string `json:"id"` // nolint
|
||
}{
|
||
Status: report.Id,
|
||
ProgressDetail: map[string]string{},
|
||
Id: report.Id,
|
||
})
|
||
}
|
||
|
||
type pullResult struct {
|
||
images []*libimage.Image
|
||
err error
|
||
}
|
||
|
||
func CreateImageFromImage(w http.ResponseWriter, r *http.Request) {
|
||
// 200 no error
|
||
// 404 repo does not exist or no read access
|
||
// 500 internal
|
||
decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
|
||
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
||
|
||
query := struct {
|
||
FromImage string `schema:"fromImage"`
|
||
Tag string `schema:"tag"`
|
||
Platform string `schema:"platform"`
|
||
}{
|
||
// This is where you can override the golang default value for one of fields
|
||
}
|
||
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
|
||
utils.Error(w, http.StatusBadRequest, errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
|
||
return
|
||
}
|
||
|
||
possiblyNormalizedName, err := utils.NormalizeToDockerHub(r, mergeNameAndTagOrDigest(query.FromImage, query.Tag))
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "error normalizing image"))
|
||
return
|
||
}
|
||
|
||
authConf, authfile, err := auth.GetCredentials(r)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusBadRequest, err)
|
||
return
|
||
}
|
||
defer auth.RemoveAuthfile(authfile)
|
||
|
||
pullOptions := &libimage.PullOptions{}
|
||
pullOptions.AuthFilePath = authfile
|
||
if authConf != nil {
|
||
pullOptions.Username = authConf.Username
|
||
pullOptions.Password = authConf.Password
|
||
pullOptions.IdentityToken = authConf.IdentityToken
|
||
}
|
||
pullOptions.Writer = os.Stderr // allows for debugging on the server
|
||
|
||
// Handle the platform.
|
||
platformSpecs := strings.Split(query.Platform, "/")
|
||
pullOptions.OS = platformSpecs[0] // may be empty
|
||
if len(platformSpecs) > 1 {
|
||
pullOptions.Architecture = platformSpecs[1]
|
||
if len(platformSpecs) > 2 {
|
||
pullOptions.Variant = platformSpecs[2]
|
||
}
|
||
}
|
||
|
||
progress := make(chan types.ProgressProperties)
|
||
pullOptions.Progress = progress
|
||
|
||
pullResChan := make(chan pullResult)
|
||
go func() {
|
||
pulledImages, err := runtime.LibimageRuntime().Pull(r.Context(), possiblyNormalizedName, config.PullPolicyAlways, pullOptions)
|
||
pullResChan <- pullResult{images: pulledImages, err: err}
|
||
}()
|
||
|
||
flush := func() {
|
||
if flusher, ok := w.(http.Flusher); ok {
|
||
flusher.Flush()
|
||
}
|
||
}
|
||
|
||
w.WriteHeader(http.StatusOK)
|
||
w.Header().Set("Content-Type", "application/json")
|
||
flush()
|
||
|
||
enc := json.NewEncoder(w)
|
||
enc.SetEscapeHTML(true)
|
||
|
||
loop: // break out of for/select infinite loop
|
||
for {
|
||
var report struct {
|
||
Stream string `json:"stream,omitempty"`
|
||
Status string `json:"status,omitempty"`
|
||
Progress struct {
|
||
Current uint64 `json:"current,omitempty"`
|
||
Total int64 `json:"total,omitempty"`
|
||
} `json:"progressDetail,omitempty"`
|
||
Error string `json:"error,omitempty"`
|
||
Id string `json:"id,omitempty"` // nolint
|
||
}
|
||
select {
|
||
case e := <-progress:
|
||
switch e.Event {
|
||
case types.ProgressEventNewArtifact:
|
||
report.Status = "Pulling fs layer"
|
||
case types.ProgressEventRead:
|
||
report.Status = "Downloading"
|
||
report.Progress.Current = e.Offset
|
||
report.Progress.Total = e.Artifact.Size
|
||
case types.ProgressEventSkipped:
|
||
report.Status = "Already exists"
|
||
case types.ProgressEventDone:
|
||
report.Status = "Download complete"
|
||
}
|
||
report.Id = e.Artifact.Digest.Encoded()[0:12]
|
||
if err := enc.Encode(report); err != nil {
|
||
logrus.Warnf("Failed to json encode error %q", err.Error())
|
||
}
|
||
flush()
|
||
case pullRes := <-pullResChan:
|
||
err := pullRes.err
|
||
pulledImages := pullRes.images
|
||
if err != nil {
|
||
report.Error = err.Error()
|
||
} else {
|
||
if len(pulledImages) > 0 {
|
||
img := pulledImages[0].ID()
|
||
if utils.IsLibpodRequest(r) {
|
||
report.Status = "Pull complete"
|
||
} else {
|
||
report.Status = "Download complete"
|
||
}
|
||
report.Id = img[0:12]
|
||
} else {
|
||
report.Error = "internal error: no images pulled"
|
||
}
|
||
}
|
||
if err := enc.Encode(report); err != nil {
|
||
logrus.Warnf("Failed to json encode error %q", err.Error())
|
||
}
|
||
flush()
|
||
break loop // break out of for/select infinite loop
|
||
}
|
||
}
|
||
}
|
||
|
||
func GetImage(w http.ResponseWriter, r *http.Request) {
|
||
// 200 no error
|
||
// 404 no such
|
||
// 500 internal
|
||
name := utils.GetName(r)
|
||
possiblyNormalizedName, err := utils.NormalizeToDockerHub(r, name)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "error normalizing image"))
|
||
return
|
||
}
|
||
|
||
newImage, err := utils.GetImage(r, possiblyNormalizedName)
|
||
if err != nil {
|
||
// Here we need to fiddle with the error message because docker-py is looking for "No
|
||
// such image" to determine on how to raise the correct exception.
|
||
errMsg := strings.ReplaceAll(err.Error(), "image not known", "No such image")
|
||
utils.Error(w, http.StatusNotFound, errors.Errorf("failed to find image %s: %s", name, errMsg))
|
||
return
|
||
}
|
||
inspect, err := handlers.ImageDataToImageInspect(r.Context(), newImage)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrapf(err, "failed to convert ImageData to ImageInspect '%s'", inspect.ID))
|
||
return
|
||
}
|
||
utils.WriteResponse(w, http.StatusOK, inspect)
|
||
}
|
||
|
||
func GetImages(w http.ResponseWriter, r *http.Request) {
|
||
decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
|
||
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
||
query := struct {
|
||
All bool
|
||
Digests bool
|
||
Filter string // Docker 1.24 compatibility
|
||
}{
|
||
// This is where you can override the golang default value for one of fields
|
||
}
|
||
|
||
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
|
||
utils.Error(w, http.StatusBadRequest,
|
||
errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
|
||
return
|
||
}
|
||
if _, found := r.URL.Query()["digests"]; found && query.Digests {
|
||
utils.UnSupportedParameter("digests")
|
||
return
|
||
}
|
||
|
||
filterList, err := filters.FiltersFromRequest(r)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, err)
|
||
return
|
||
}
|
||
if !utils.IsLibpodRequest(r) {
|
||
if len(query.Filter) > 0 { // Docker 1.24 compatibility
|
||
filterList = append(filterList, "reference="+query.Filter)
|
||
}
|
||
filterList = append(filterList, "manifest=false")
|
||
}
|
||
|
||
imageEngine := abi.ImageEngine{Libpod: runtime}
|
||
|
||
listOptions := entities.ImageListOptions{All: query.All, Filter: filterList}
|
||
summaries, err := imageEngine.List(r.Context(), listOptions)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, err)
|
||
return
|
||
}
|
||
|
||
if !utils.IsLibpodRequest(r) {
|
||
// docker adds sha256: in front of the ID
|
||
for _, s := range summaries {
|
||
s.ID = "sha256:" + s.ID
|
||
}
|
||
}
|
||
utils.WriteResponse(w, http.StatusOK, summaries)
|
||
}
|
||
|
||
func LoadImages(w http.ResponseWriter, r *http.Request) {
|
||
// TODO this is basically wrong
|
||
// TODO ... improve these ^ messages to something useful
|
||
decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
|
||
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
||
|
||
query := struct {
|
||
Changes map[string]string `json:"changes"` // Ignored
|
||
Message string `json:"message"` // Ignored
|
||
Quiet bool `json:"quiet"` // Ignored
|
||
}{
|
||
// This is where you can override the golang default value for one of fields
|
||
}
|
||
|
||
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
|
||
utils.Error(w, http.StatusBadRequest, errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
|
||
return
|
||
}
|
||
|
||
// First write the body to a temporary file that we can later attempt
|
||
// to load.
|
||
f, err := ioutil.TempFile("", "api_load.tar")
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "failed to create tempfile"))
|
||
return
|
||
}
|
||
defer func() {
|
||
err := os.Remove(f.Name())
|
||
if err != nil {
|
||
logrus.Errorf("Failed to remove temporary file: %v.", err)
|
||
}
|
||
}()
|
||
if err := SaveFromBody(f, r); err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "failed to write temporary file"))
|
||
return
|
||
}
|
||
|
||
imageEngine := abi.ImageEngine{Libpod: runtime}
|
||
|
||
loadOptions := entities.ImageLoadOptions{Input: f.Name()}
|
||
loadReport, err := imageEngine.Load(r.Context(), loadOptions)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "failed to load image"))
|
||
return
|
||
}
|
||
|
||
if len(loadReport.Names) < 1 {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Errorf("one or more images are required"))
|
||
return
|
||
}
|
||
|
||
utils.WriteResponse(w, http.StatusOK, struct {
|
||
Stream string `json:"stream"`
|
||
}{
|
||
Stream: fmt.Sprintf("Loaded image: %s", strings.Join(loadReport.Names, ",")),
|
||
})
|
||
}
|
||
|
||
func ExportImages(w http.ResponseWriter, r *http.Request) {
|
||
// 200 OK
|
||
// 500 Error
|
||
decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
|
||
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
||
|
||
query := struct {
|
||
Names []string `schema:"names"`
|
||
}{
|
||
// This is where you can override the golang default value for one of fields
|
||
}
|
||
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
|
||
utils.Error(w, http.StatusBadRequest, errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
|
||
return
|
||
}
|
||
if len(query.Names) == 0 {
|
||
utils.Error(w, http.StatusBadRequest, fmt.Errorf("no images to download"))
|
||
return
|
||
}
|
||
|
||
images := make([]string, len(query.Names))
|
||
for i, img := range query.Names {
|
||
possiblyNormalizedName, err := utils.NormalizeToDockerHub(r, img)
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "error normalizing image"))
|
||
return
|
||
}
|
||
images[i] = possiblyNormalizedName
|
||
}
|
||
|
||
tmpfile, err := ioutil.TempFile("", "api.tar")
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "unable to create tempfile"))
|
||
return
|
||
}
|
||
defer os.Remove(tmpfile.Name())
|
||
if err := tmpfile.Close(); err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "unable to close tempfile"))
|
||
return
|
||
}
|
||
|
||
imageEngine := abi.ImageEngine{Libpod: runtime}
|
||
|
||
saveOptions := entities.ImageSaveOptions{Format: "docker-archive", Output: tmpfile.Name(), MultiImageArchive: true}
|
||
if err := imageEngine.Save(r.Context(), images[0], images[1:], saveOptions); err != nil {
|
||
utils.InternalServerError(w, err)
|
||
return
|
||
}
|
||
|
||
rdr, err := os.Open(tmpfile.Name())
|
||
if err != nil {
|
||
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "failed to read the exported tarfile"))
|
||
return
|
||
}
|
||
defer rdr.Close()
|
||
utils.WriteResponse(w, http.StatusOK, rdr)
|
||
}
|