New creates a Sandbox with the given ArtifactConfig.

SetupDir creates a directory suitable for testing artifact - i.e.

TestSandbox creates a real artifact downloader configured via the default artifact config.

SubCommand is the first argument to the clone of the nomad agent process for downloading artifacts.

Error is a RecoverableError used to include the URL along with the underlying fetching error.

A Sandbox is used to download artifacts.