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/*
* Copyright (c) 2020. Ant Group. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*/
package label
import (
snpkg "github.com/containerd/containerd/pkg/snapshotters"
)
// For package compatibility, we still keep the old exported name here.
var AppendLabelsHandlerWrapper = snpkg.AppendInfoHandlerWrapper
// For package compatibility, we still keep the old exported name here.
const (
CRIImageRef = snpkg.TargetRefLabel
CRIImageLayers = snpkg.TargetImageLayersLabel
CRILayerDigest = snpkg.TargetLayerDigestLabel
CRIManifestDigest = snpkg.TargetManifestDigestLabel
)
const (
// Marker for remote snapshotter to handle the pull request.
// During image pull, the containerd client calls Prepare API with the label containerd.io/snapshot.ref.
// This is a containerd-defined label which contains ChainID that targets a committed snapshot that the
// client is trying to prepare.
TargetSnapshotRef = "containerd.io/snapshot.ref"
// A bool flag to mark the blob as a Nydus data blob, set by image builders.
NydusDataLayer = "containerd.io/snapshot/nydus-blob"
// A bool flag to mark the blob as a nydus bootstrap, set by image builders.
NydusMetaLayer = "containerd.io/snapshot/nydus-bootstrap"
// The referenced blob sha256 in format of `sha256:xxx`, set by image builders.
NydusRefLayer = "containerd.io/snapshot/nydus-ref"
// The blobID of associated layer, also marking the layer as a nydus tarfs, set by the snapshotter
NydusTarfsLayer = "containerd.io/snapshot/nydus-tarfs"
// Dm-verity information for image block device
NydusImageBlockInfo = "containerd.io/snapshot/nydus-image-block"
// Dm-verity information for layer block device
NydusLayerBlockInfo = "containerd.io/snapshot/nydus-layer-block"
// Annotation containing secret to pull images from registry, set by the snapshotter.
NydusImagePullSecret = "containerd.io/snapshot/pullsecret"
// Annotation containing username to pull images from registry, set by the snapshotter.
NydusImagePullUsername = "containerd.io/snapshot/pullusername"
// Proxy image pull actions to other agents.
NydusProxyMode = "containerd.io/snapshot/nydus-proxy-mode"
// A bool flag to enable integrity verification of meta data blob
NydusSignature = "containerd.io/snapshot/nydus-signature"
// A bool flag to mark the blob as a estargz data blob, set by the snapshotter.
StargzLayer = "containerd.io/snapshot/stargz"
// volatileOpt is a key of an optional label to each snapshot.
// If this optional label of a snapshot is specified, when mounted to rootdir
// this snapshot will include volatile option
OverlayfsVolatileOpt = "containerd.io/snapshot/overlay.volatile"
// A bool flag to mark it is recommended to run this image with tarfs mode, set by image builders.
// runtime can decide whether to rely on this annotation
TarfsHint = "containerd.io/snapshot/tarfs-hint"
)
func IsNydusDataLayer(labels map[string]string) bool {
_, ok := labels[NydusDataLayer]
return ok
}
func IsNydusMetaLayer(labels map[string]string) bool {
_, ok := labels[NydusMetaLayer]
return ok
}
func IsTarfsDataLayer(labels map[string]string) bool {
_, ok := labels[NydusTarfsLayer]
return ok
}
func IsNydusProxyMode(labels map[string]string) bool {
_, ok := labels[NydusProxyMode]
return ok
}
func HasTarfsHint(labels map[string]string) bool {
_, ok := labels[TarfsHint]
return ok
}
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