FindProjectRoot returns the root directory of the Git project if exists.

GetEtcConfigPath return a path to the configuration json.

NewStarlightLayer mainly populate the hash values for the StarlightLayer object.

ContentLabelContainerdGC prevents containerd from removing the content.

ContentLabelStarlightMediaType is the media type of the content, can be manifest, config, or starlight.

ImageLabelPuller and ImageLabelStarlightMetadata are labels for containerd image.

ImageMediaTypeManifestV2 for containerd image TYPE field.

find the project root directory.

--------------------------------------------------------------------------------- Snapshot labels have a prefix of "containerd.io/snapshot/" or are the "containerd.io/snapshot.ref" label.