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moby--moby/daemon/containerd/image_delete.go
Djordje Lukic 26c65447df
Implement ImageDelete for containerd
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-07-28 22:56:34 +02:00

62 lines
2.7 KiB
Go

package containerd
import (
"context"
"github.com/containerd/containerd/images"
"github.com/docker/distribution/reference"
"github.com/docker/docker/api/types"
)
// ImageDelete deletes the image referenced by the given imageRef from this
// daemon. The given imageRef can be an image ID, ID prefix, or a repository
// reference (with an optional tag or digest, defaulting to the tag name
// "latest"). There is differing behavior depending on whether the given
// imageRef is a repository reference or not.
//
// If the given imageRef is a repository reference then that repository
// reference will be removed. However, if there exists any containers which
// were created using the same image reference then the repository reference
// cannot be removed unless either there are other repository references to the
// same image or force is true. Following removal of the repository reference,
// the referenced image itself will attempt to be deleted as described below
// but quietly, meaning any image delete conflicts will cause the image to not
// be deleted and the conflict will not be reported.
//
// There may be conflicts preventing deletion of an image and these conflicts
// are divided into two categories grouped by their severity:
//
// Hard Conflict:
// - a pull or build using the image.
// - any descendant image.
// - any running container using the image.
//
// Soft Conflict:
// - any stopped container using the image.
// - any repository tag or digest references to the image.
//
// The image cannot be removed if there are any hard conflicts and can be
// removed if there are soft conflicts only if force is true.
//
// If prune is true, ancestor images will each attempt to be deleted quietly,
// meaning any delete conflicts will cause the image to not be deleted and the
// conflict will not be reported.
//
// TODO(thaJeztah): implement ImageDelete "force" options; see https://github.com/moby/moby/issues/43850
// TODO(thaJeztah): implement ImageDelete "prune" options; see https://github.com/moby/moby/issues/43849
// TODO(thaJeztah): add support for image delete using image (short)ID; see https://github.com/moby/moby/issues/43854
// TODO(thaJeztah): mage delete should send image "untag" events and prometheus counters; see https://github.com/moby/moby/issues/43855
func (i *ImageService) ImageDelete(ctx context.Context, imageRef string, force, prune bool) ([]types.ImageDeleteResponseItem, error) {
parsedRef, err := reference.ParseNormalizedNamed(imageRef)
if err != nil {
return nil, err
}
ref := reference.TagNameOnly(parsedRef)
err = i.client.ImageService().Delete(ctx, ref.String(), images.SynchronousDelete())
if err != nil {
return nil, err
}
return []types.ImageDeleteResponseItem{{Untagged: reference.FamiliarString(parsedRef)}}, nil
}