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package containerd
import (
"context"
"github.com/containerd/containerd/mount"
"github.com/containerd/log"
"github.com/docker/docker/container"
"github.com/docker/docker/pkg/archive"
"github.com/docker/docker/pkg/stringid"
)
func (i *ImageService) Changes(ctx context.Context, container *container.Container) ([]archive.Change, error) {
snapshotter := i.client.SnapshotService(container.Driver)
info, err := snapshotter.Stat(ctx, container.ID)
if err != nil {
return nil, err
}
id := stringid.GenerateRandomID()
parentViewKey := container.ID + "-parent-view-" + id
imageMounts, _ := snapshotter.View(ctx, parentViewKey, info.Parent)
defer func() {
if err := snapshotter.Remove(ctx, parentViewKey); err != nil {
log.G(ctx).WithError(err).Warn("error removing the parent view snapshot")
}
}()
var changes []archive.Change
err = i.PerformWithBaseFS(ctx, container, func(containerRoot string) error {
return mount.WithReadonlyTempMount(ctx, imageMounts, func(imageRoot string) error {
changes, err = archive.ChangesDirs(containerRoot, imageRoot)
return err
})
})
return changes, err
}
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