| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| github.com/containerd/containerd/errdefs | Package errdefs defines the common errors used throughout containerd packages. |
| github.com/containerd/containerd/leases | |
| github.com/containerd/containerd/mount | |
| github.com/containerd/containerd/snapshots | |
| github.com/containerd/log | Package log provides types and functions related to logging, passing loggers through a context, and attaching context to the logger. |
| github.com/docker/docker/daemon/graphdriver | |
| github.com/docker/docker/layer | Package layer is package for managing read-only and read-write mounts on the union file system driver. |
| github.com/docker/docker/pkg/idtools | |
| github.com/docker/docker/pkg/longpath | Package longpath introduces some constants and helper functions for handling long paths in Windows. |
| github.com/moby/buildkit/identity | |
| github.com/moby/buildkit/snapshot | |
| github.com/moby/buildkit/util/leaseutil | |
| github.com/opencontainers/go-digest | Package digest provides a generalized type to opaquely represent message digests and their operations within the registry. |
| github.com/pkg/errors | Package errors provides simple error handling primitives. |
| go.etcd.io/bbolt | package bbolt implements a low-level key/value store in pure Go. |
| golang.org/x/sync/errgroup | Package errgroup provides synchronization, error propagation, and Context cancelation for groups of goroutines working on subtasks of a common task. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |