Method Checkpoint

client/container.go:415–477

(ctx context.Context, ref string, opts ...CheckpointOpts)

}

func (c *container) Checkpoint(ctx context.Context, ref string, opts ...CheckpointOpts) (Image, error) {
	index := &ocispec.Index{
		Versioned: ver.Versioned{
			SchemaVersion: 2,
		},
		Annotations: make(map[string]string),
	}
	copts := &options.CheckpointOptions{
		Exit:                false,
		OpenTcp:             false,
		ExternalUnixSockets: false,
		Terminal:            false,
		FileLocks:           true,
		EmptyNamespaces:     nil,
	}
	info, err := c.Info(ctx)
	if err != nil {
		return nil, err
	}

	img, err := c.Image(ctx)
	if err != nil {
		return nil, err
	}

	ctx, done, err := c.client.WithLease(ctx)
	if err != nil {
		return nil, err
	}
	defer done(ctx)

	// add image name to manifest
	index.Annotations[ocispec.AnnotationRefName] = img.Name()
	// add runtime info to index
	index.Annotations[checkpointRuntimeNameLabel] = info.Runtime.Name
	// add snapshotter info to index
	index.Annotations[checkpointSnapshotterNameLabel] = info.Snapshotter

	// process remaining opts
	for _, o := range opts {
		if err := o(ctx, c.client, &info, index, copts); err != nil {
			err = errgrpc.ToNative(err)
			if !errdefs.IsAlreadyExists(err) {
				return nil, err
			}
		}
	}

	desc, err := writeIndex(ctx, index, c.client, c.ID()+"index")
	if err != nil {
		return nil, err
	}
	i := images.Image{
		Name:   ref,
		Target: desc,
	}
	checkpoint, err := c.client.ImageService().Create(ctx, i)
	if err != nil {