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// +build ABISupport
package abi
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"strings"
"github.com/containers/buildah/manifests"
buildahUtil "github.com/containers/buildah/util"
cp "github.com/containers/image/v5/copy"
"github.com/containers/image/v5/docker"
"github.com/containers/image/v5/manifest"
"github.com/containers/image/v5/transports/alltransports"
"github.com/containers/image/v5/types"
libpodImage "github.com/containers/libpod/libpod/image"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/containers/libpod/pkg/util"
"github.com/opencontainers/go-digest"
imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/pkg/errors"
)
// ManifestCreate implements logic for creating manifest lists via ImageEngine
func (ir *ImageEngine) ManifestCreate(ctx context.Context, names, images []string, opts entities.ManifestCreateOptions) (string, error) {
fullNames, err := buildahUtil.ExpandNames(names, "", ir.Libpod.SystemContext(), ir.Libpod.GetStore())
if err != nil {
return "", errors.Wrapf(err, "error encountered while expanding image name %q", names)
}
imageID, err := libpodImage.CreateManifestList(ir.Libpod.ImageRuntime(), *ir.Libpod.SystemContext(), fullNames, images, opts.All)
if err != nil {
return imageID, err
}
return imageID, err
}
// ManifestInspect returns the content of a manifest list or image
func (ir *ImageEngine) ManifestInspect(ctx context.Context, name string) ([]byte, error) {
dockerPrefix := fmt.Sprintf("%s://", docker.Transport.Name())
_, err := alltransports.ParseImageName(name)
if err != nil {
_, err = alltransports.ParseImageName(dockerPrefix + name)
if err != nil {
return nil, errors.Errorf("invalid image reference %q", name)
}
}
image, err := ir.Libpod.ImageRuntime().New(ctx, name, "", "", nil, nil, libpodImage.SigningOptions{}, nil, util.PullImageMissing)
if err != nil {
return nil, errors.Wrapf(err, "reading image %q", name)
}
list, err := image.InspectManifest()
if err != nil {
return nil, errors.Wrapf(err, "loading manifest %q", name)
}
buf, err := json.MarshalIndent(list, "", " ")
if err != nil {
return buf, errors.Wrapf(err, "error rendering manifest for display")
}
return buf, nil
}
// ManifestAdd adds images to the manifest list
func (ir *ImageEngine) ManifestAdd(ctx context.Context, opts entities.ManifestAddOptions) (string, error) {
imageSpec := opts.Images[0]
listImageSpec := opts.Images[1]
dockerPrefix := fmt.Sprintf("%s://", docker.Transport.Name())
_, err := alltransports.ParseImageName(imageSpec)
if err != nil {
_, err = alltransports.ParseImageName(fmt.Sprintf("%s%s", dockerPrefix, imageSpec))
if err != nil {
return "", errors.Errorf("invalid image reference %q", imageSpec)
}
}
listImage, err := ir.Libpod.ImageRuntime().NewFromLocal(listImageSpec)
if err != nil {
return "", errors.Wrapf(err, "error retrieving local image from image name %s", listImageSpec)
}
manifestAddOpts := libpodImage.ManifestAddOpts{
All: opts.All,
Arch: opts.Arch,
Features: opts.Features,
Images: opts.Images,
OS: opts.OS,
OSVersion: opts.OSVersion,
Variant: opts.Variant,
}
if len(opts.Annotation) != 0 {
annotations := make(map[string]string)
for _, annotationSpec := range opts.Annotation {
spec := strings.SplitN(annotationSpec, "=", 2)
if len(spec) != 2 {
return "", errors.Errorf("no value given for annotation %q", spec[0])
}
annotations[spec[0]] = spec[1]
}
manifestAddOpts.Annotation = annotations
}
listID, err := listImage.AddManifest(*ir.Libpod.SystemContext(), manifestAddOpts)
if err != nil {
return listID, err
}
return listID, nil
}
// ManifestAnnotate updates an entry of the manifest list
func (ir *ImageEngine) ManifestAnnotate(ctx context.Context, names []string, opts entities.ManifestAnnotateOptions) (string, error) {
listImage, err := ir.Libpod.ImageRuntime().NewFromLocal(names[0])
if err != nil {
return "", errors.Wrapf(err, "error retreiving local image from image name %s", names[0])
}
digest, err := digest.Parse(names[1])
if err != nil {
return "", errors.Errorf(`invalid image digest "%s": %v`, names[1], err)
}
manifestAnnotateOpts := libpodImage.ManifestAnnotateOpts{
Arch: opts.Arch,
Features: opts.Features,
OS: opts.OS,
OSFeatures: opts.OSFeatures,
OSVersion: opts.OSVersion,
Variant: opts.Variant,
}
if len(opts.Annotation) > 0 {
annotations := make(map[string]string)
for _, annotationSpec := range opts.Annotation {
spec := strings.SplitN(annotationSpec, "=", 2)
if len(spec) != 2 {
return "", errors.Errorf("no value given for annotation %q", spec[0])
}
annotations[spec[0]] = spec[1]
}
manifestAnnotateOpts.Annotation = annotations
}
updatedListID, err := listImage.AnnotateManifest(*ir.Libpod.SystemContext(), digest, manifestAnnotateOpts)
if err == nil {
return fmt.Sprintf("%s: %s", updatedListID, digest.String()), nil
}
return "", err
}
// ManifestRemove removes specified digest from the specified manifest list
func (ir *ImageEngine) ManifestRemove(ctx context.Context, names []string) (string, error) {
instanceDigest, err := digest.Parse(names[1])
if err != nil {
return "", errors.Errorf(`invalid image digest "%s": %v`, names[1], err)
}
listImage, err := ir.Libpod.ImageRuntime().NewFromLocal(names[0])
if err != nil {
return "", errors.Wrapf(err, "error retriving local image from image name %s", names[0])
}
updatedListID, err := listImage.RemoveManifest(instanceDigest)
if err == nil {
return fmt.Sprintf("%s :%s\n", updatedListID, instanceDigest.String()), nil
}
return "", err
}
// ManifestPush pushes a manifest list or image index to the destination
func (ir *ImageEngine) ManifestPush(ctx context.Context, names []string, opts entities.ManifestPushOptions) error {
listImage, err := ir.Libpod.ImageRuntime().NewFromLocal(names[0])
if err != nil {
return errors.Wrapf(err, "error retriving local image from image name %s", names[0])
}
dest, err := alltransports.ParseImageName(names[1])
if err != nil {
return err
}
var manifestType string
if opts.Format != "" {
switch opts.Format {
case "oci":
manifestType = imgspecv1.MediaTypeImageManifest
case "v2s2", "docker":
manifestType = manifest.DockerV2Schema2MediaType
default:
return errors.Errorf("unknown format %q. Choose one of the supported formats: 'oci' or 'v2s2'", opts.Format)
}
}
// Set the system context.
sys := ir.Libpod.SystemContext()
if sys != nil {
sys = &types.SystemContext{}
}
sys.AuthFilePath = opts.Authfile
sys.DockerInsecureSkipTLSVerify = opts.SkipTLSVerify
if opts.Username != "" && opts.Password != "" {
sys.DockerAuthConfig = &types.DockerAuthConfig{
Username: opts.Username,
Password: opts.Password,
}
}
options := manifests.PushOptions{
Store: ir.Libpod.GetStore(),
SystemContext: sys,
ImageListSelection: cp.CopySpecificImages,
Instances: nil,
RemoveSignatures: opts.RemoveSignatures,
SignBy: opts.SignBy,
ManifestType: manifestType,
}
if opts.All {
options.ImageListSelection = cp.CopyAllImages
}
if !opts.Quiet {
options.ReportWriter = os.Stderr
}
digest, err := listImage.PushManifest(dest, options)
if err == nil && opts.Purge {
_, err = ir.Libpod.GetStore().DeleteImage(listImage.ID(), true)
}
if opts.DigestFile != "" {
if err = ioutil.WriteFile(opts.DigestFile, []byte(digest.String()), 0644); err != nil {
return buildahUtil.GetFailureCause(err, errors.Wrapf(err, "failed to write digest to file %q", opts.DigestFile))
}
}
return err
}
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