1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
//go:build nydus
// +build nydus
package containerimage
import (
"context"
"github.com/moby/buildkit/cache"
"github.com/moby/buildkit/session"
"github.com/moby/buildkit/solver"
"github.com/moby/buildkit/util/compression"
ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/pkg/errors"
)
// patchImageLayers appends an extra nydus bootstrap layer
// to the manifest of nydus image, normalizes layers and
// history. The nydus bootstrap layer represents the whole
// metadata of filesystem view for the entire image.
func patchImageLayers(ctx context.Context, remote *solver.Remote, history []ocispecs.History, ref cache.ImmutableRef, opts *ImageCommitOpts, sg session.Group) (*solver.Remote, []ocispecs.History, error) {
if opts.RefCfg.Compression.Type != compression.Nydus {
remote, history = normalizeLayersAndHistory(ctx, remote, history, ref, opts.OCITypes)
return remote, history, nil
}
desc, err := cache.MergeNydus(ctx, ref, opts.RefCfg.Compression, sg)
if err != nil {
return nil, nil, errors.Wrap(err, "merge nydus layer")
}
remote.Descriptors = append(remote.Descriptors, *desc)
remote, history = normalizeLayersAndHistory(ctx, remote, history, ref, opts.OCITypes)
return remote, history, nil
}
|
