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
|
// Copyright 2023 Sylabs Inc. All rights reserved.
//
// SPDX-License-Identifier: Apache-2.0
package mutate
import (
"io"
v1 "github.com/google/go-containerregistry/pkg/v1"
"github.com/google/go-containerregistry/pkg/v1/mutate"
"github.com/google/go-containerregistry/pkg/v1/tarball"
)
// Squash replaces the layers in the base image with a single, squashed layer.
func Squash(base v1.Image) (v1.Image, error) {
opener := func() (io.ReadCloser, error) {
return mutate.Extract(base), nil
}
l, err := tarball.LayerFromOpener(opener)
if err != nil {
return nil, err
}
return Apply(base, ReplaceLayers(l))
}
|
