diff options
Diffstat (limited to 'libpod/images/image_data.go')
| -rw-r--r-- | libpod/images/image_data.go | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/libpod/images/image_data.go b/libpod/images/image_data.go deleted file mode 100644 index 1fa63f6cb..000000000 --- a/libpod/images/image_data.go +++ /dev/null @@ -1,202 +0,0 @@ -package images - -import ( - "encoding/json" - "time" - - "github.com/containers/image/docker/reference" - is "github.com/containers/image/storage" - "github.com/containers/image/transports" - "github.com/containers/image/types" - "github.com/containers/storage" - digest "github.com/opencontainers/go-digest" - ociv1 "github.com/opencontainers/image-spec/specs-go/v1" - "github.com/pkg/errors" - "github.com/projectatomic/libpod/libpod/driver" -) - -// Data handles the data used when inspecting a container -// nolint -type Data struct { - ID string - Tags []string - Digests []string - Digest digest.Digest - Comment string - Created *time.Time - Container string - Author string - Config ociv1.ImageConfig - Architecture string - OS string - Annotations map[string]string - CreatedBy string - Size uint - VirtualSize uint - GraphDriver driver.Data - RootFS ociv1.RootFS -} - -// ParseImageNames parses the names we've stored with an image into a list of -// tagged references and a list of references which contain digests. -func ParseImageNames(names []string) (tags, digests []string, err error) { - for _, name := range names { - if named, err := reference.ParseNamed(name); err == nil { - if digested, ok := named.(reference.Digested); ok { - canonical, err := reference.WithDigest(named, digested.Digest()) - if err == nil { - digests = append(digests, canonical.String()) - } - } else { - if reference.IsNameOnly(named) { - named = reference.TagNameOnly(named) - } - if tagged, ok := named.(reference.Tagged); ok { - namedTagged, err := reference.WithTag(named, tagged.Tag()) - if err == nil { - tags = append(tags, namedTagged.String()) - } - } - } - } - } - return tags, digests, nil -} - -func annotations(manifest []byte, manifestType string) map[string]string { - annotations := make(map[string]string) - switch manifestType { - case ociv1.MediaTypeImageManifest: - var m ociv1.Manifest - if err := json.Unmarshal(manifest, &m); err == nil { - for k, v := range m.Annotations { - annotations[k] = v - } - } - } - return annotations -} - -// GetData gets the Data for a container with the given name in the given store. -func GetData(store storage.Store, name string) (*Data, error) { - img, err := FindImage(store, name) - if err != nil { - return nil, errors.Wrapf(err, "error reading image %q", name) - } - - imgRef, err := FindImageRef(store, "@"+img.ID) - if err != nil { - return nil, errors.Wrapf(err, "error reading image %q", img.ID) - } - - tags, digests, err := ParseImageNames(img.Names) - if err != nil { - return nil, errors.Wrapf(err, "error parsing image names for %q", name) - } - - driverName, err := driver.GetDriverName(store) - if err != nil { - return nil, errors.Wrapf(err, "error reading name of storage driver") - } - - topLayerID := img.TopLayer - - driverMetadata, err := driver.GetDriverMetadata(store, topLayerID) - if err != nil { - return nil, errors.Wrapf(err, "error asking storage driver %q for metadata", driverName) - } - - layer, err := store.Layer(topLayerID) - if err != nil { - return nil, errors.Wrapf(err, "error reading information about layer %q", topLayerID) - } - size, err := store.DiffSize(layer.Parent, layer.ID) - if err != nil { - return nil, errors.Wrapf(err, "error determining size of layer %q", layer.ID) - } - - imgSize, err := imgRef.Size() - if err != nil { - return nil, errors.Wrapf(err, "error determining size of image %q", transports.ImageName(imgRef.Reference())) - } - - manifest, manifestType, err := imgRef.Manifest() - if err != nil { - return nil, errors.Wrapf(err, "error reading manifest for image %q", img.ID) - } - manifestDigest := digest.Digest("") - if len(manifest) > 0 { - manifestDigest = digest.Canonical.FromBytes(manifest) - } - annotations := annotations(manifest, manifestType) - - config, err := imgRef.OCIConfig() - if err != nil { - return nil, errors.Wrapf(err, "error reading image configuration for %q", img.ID) - } - historyComment := "" - historyCreatedBy := "" - if len(config.History) > 0 { - historyComment = config.History[len(config.History)-1].Comment - historyCreatedBy = config.History[len(config.History)-1].CreatedBy - } - - return &Data{ - ID: img.ID, - Tags: tags, - Digests: digests, - Digest: manifestDigest, - Comment: historyComment, - Created: config.Created, - Author: config.Author, - Config: config.Config, - Architecture: config.Architecture, - OS: config.OS, - Annotations: annotations, - CreatedBy: historyCreatedBy, - Size: uint(size), - VirtualSize: uint(size + imgSize), - GraphDriver: driver.Data{ - Name: driverName, - Data: driverMetadata, - }, - RootFS: config.RootFS, - }, nil -} - -// FindImage searches for a *storage.Image with a matching the given name or ID in the given store. -func FindImage(store storage.Store, image string) (*storage.Image, error) { - var img *storage.Image - ref, err := is.Transport.ParseStoreReference(store, image) - if err == nil { - img, err = is.Transport.GetStoreImage(store, ref) - } - if err != nil { - img2, err2 := store.Image(image) - if err2 != nil { - if ref == nil { - return nil, errors.Wrapf(err, "error parsing reference to image %q", image) - } - return nil, errors.Wrapf(err, "unable to locate image %q", image) - } - img = img2 - } - return img, nil -} - -// FindImageRef searches for and returns a new types.Image matching the given name or ID in the given store. -func FindImageRef(store storage.Store, image string) (types.Image, error) { - img, err := FindImage(store, image) - if err != nil { - return nil, errors.Wrapf(err, "unable to locate image %q", image) - } - ref, err := is.Transport.ParseStoreReference(store, "@"+img.ID) - if err != nil { - return nil, errors.Wrapf(err, "error parsing reference to image %q", img.ID) - } - imgRef, err := ref.NewImage(nil) - if err != nil { - return nil, errors.Wrapf(err, "error reading image %q", img.ID) - } - return imgRef, nil -} |