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imagetools inspect: multi-platform support

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Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
pull/854/head
CrazyMax 3 years ago
parent 6c56109083
commit 20a55e9184
No known key found for this signature in database
GPG Key ID: 3248E46B6BB8C7F7
4 changed files with 285 additions and 89 deletions
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6
commands/imagetools/inspect.go
Unescape Escape View File

@ -4,6 +4,7 @@ import (
"github.com/docker/buildx/store"
"github.com/docker/buildx/store/storeutil"
"github.com/docker/buildx/util/imagetools"
"github.com/docker/cli-docs-tool/annotation"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/moby/buildkit/util/appcontext"
@ -71,7 +72,10 @@ func inspectCmd(dockerCli command.Cli, rootOpts RootOptions) *cobra.Command {
}
flags := cmd.Flags()
flags.StringVar(&options.format, "format", "{{.Manifest}}", "Format the output using the given Go template")
flags.StringVar(&options.format, "format", "", "Format the output using the given Go template")
flags.SetAnnotation("format", annotation.DefaultValue, []string{`"{{.Manifest}}"`})
flags.BoolVar(&options.raw, "raw", false, "Show original, unformatted JSON manifest")
return cmd

166
docs/reference/buildx_imagetools_inspect.md
Unescape Escape View File

@ -12,7 +12,8 @@ Show details of an image in the registry
| Name | Type | Default | Description |
| --- | --- | --- | --- |
| [`--builder`](#builder) | `string` | | Override the configured builder instance |
| [`--raw`](#raw) | | | Show original JSON manifest |
| [`--format`](#format) | `string` | `{{.Manifest}}` | Format the output using the given Go template |
| [`--raw`](#raw) | | | Show original, unformatted JSON manifest |
<!---MARKER_GEN_END-->
@ -21,6 +22,42 @@ Show details of an image in the registry
Show details of an image in the registry.
```console
$ docker buildx imagetools inspect alpine
Name: docker.io/library/alpine:latest
MediaType: application/vnd.docker.distribution.manifest.list.v2+json
Digest: sha256:21a3deaa0d32a8057914f36584b5288d2e5ecc984380bc0118285c70fa8c9300
Manifests:
Name: docker.io/library/alpine:latest@sha256:e7d88de73db3d3fd9b2d63aa7f447a10fd0220b7cbf39803c803f2af9ba256b3
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/amd64
Name: docker.io/library/alpine:latest@sha256:e047bc2af17934d38c5a7fa9f46d443f1de3a7675546402592ef805cfa929f9d
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/arm/v6
Name: docker.io/library/alpine:latest@sha256:8483ecd016885d8dba70426fda133c30466f661bb041490d525658f1aac73822
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/arm/v7
Name: docker.io/library/alpine:latest@sha256:c74f1b1166784193ea6c8f9440263b9be6cae07dfe35e32a5df7a31358ac2060
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/arm64/v8
Name: docker.io/library/alpine:latest@sha256:2689e157117d2da668ad4699549e55eba1ceb79cb7862368b30919f0488213f4
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/386
Name: docker.io/library/alpine:latest@sha256:2042a492bcdd847a01cd7f119cd48caa180da696ed2aedd085001a78664407d6
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/ppc64le
Name: docker.io/library/alpine:latest@sha256:49e322ab6690e73a4909f787bcbdb873631264ff4a108cddfd9f9c249ba1d58e
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/s390x
```
## Examples
### <a name="builder"></a> Override the configured builder instance (--builder)
@ -29,12 +66,12 @@ Same as [`buildx --builder`](buildx.md#builder).
### <a name="format"></a> Format the output (--format)
Format the output using the given Go template. At the moment the following
fields are available:
Format the output using the given Go template. Defaults to `{{.Manifest}}` if
unset. Following fields are available:
* `.Name`: provides the reference of the image
* `.Manifest`: provides manifest or manifest list
* `.Config`: provides the image config as `application/vnd.oci.image.config.v1+json` mediatype
* `.Manifest`: provides the manifest or manifest list
* `.Image`: provides the image config
* `.BuildInfo`: provides [build info from image config](https://github.com/moby/buildkit/blob/master/docs/build-repro.md#image-config)
#### `.Name`
@ -57,30 +94,30 @@ Digest: sha256:08602e7340970e92bde5e0a2e887c1fde4d9ae753d1e05efb4c8ef3b609f97
$ docker buildx imagetools inspect moby/buildkit:master --format "{{.Manifest}}"
Name: docker.io/moby/buildkit:master
MediaType: application/vnd.docker.distribution.manifest.list.v2+json
Digest: sha256:4e078bb87be98cc2a0fcdac4a05ac934055d563bd3d23e4d714eb03a3f62b49e
Digest: sha256:3183f7ce54d1efb44c34b84f428ae10aaf141e553c6b52a7ff44cc7083a05a66
Manifests:
Name: docker.io/moby/buildkit:master@sha256:bd1e78f06de26610fadf4eb9d04b1a45a545799d6342701726e952cc0c11c912
Name: docker.io/moby/buildkit:master@sha256:667d28c9fb33820ce686887a717a148e89fa77f9097f9352996bbcce99d352b1
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/amd64
Name: docker.io/moby/buildkit:master@sha256:d37dcced63ec0965824fca644f0ac9efad8569434ec15b4c83adfcb3dcfc743b
Name: docker.io/moby/buildkit:master@sha256:71789527b64ab3d7b3de01d364b449cd7f7a3da758218fbf73b9c9aae05a6775
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/arm/v7
Name: docker.io/moby/buildkit:master@sha256:ce142eb2255e6af46f2809e159fd03081697c7605a3de03b9cbe9a52ddb244bf
Name: docker.io/moby/buildkit:master@sha256:fb64667e1ce6ab0d05478f3a8402af07b27737598dcf9a510fb1d792b13a66be
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/arm64
Name: docker.io/moby/buildkit:master@sha256:f59bfb5062fff76ce464bfa4e25ebaaaac887d6818238e119d68613c456d360c
Name: docker.io/moby/buildkit:master@sha256:1c3ddf95a0788e23f72f25800c05abc4458946685e2b66788c3d978cde6da92b
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/s390x
Name: docker.io/moby/buildkit:master@sha256:cc96426e0c50a78105d5637d31356db5dd6ec594f21b24276e534a32da09645c
Name: docker.io/moby/buildkit:master@sha256:05bcde6d460a284e5bc88026cd070277e8380355de3126cbc8fe8a452708c6b1
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/ppc64le
Name: docker.io/moby/buildkit:master@sha256:39f9c1e2878e6c333acb23187d6b205ce82ed934c60da326cb2c698192631478
Name: docker.io/moby/buildkit:master@sha256:c04c57765304ab84f4f9807fff3e11605c3a60e16435c734b02c723680f6bd6e
MediaType: application/vnd.docker.distribution.manifest.v2+json
Platform: linux/riscv64
```
@ -92,21 +129,21 @@ $ docker buildx imagetools inspect crazymax/buildx:buildinfo --format "{{.BuildI
Name: docker.io/crazymax/buildx:buildinfo
Frontend: dockerfile.v0
Attrs:
filename: Dockerfile
source: docker/dockerfile-upstream:master-labs
build-arg:bar: foo
build-arg:foo: bar
filename: Dockerfile
source: crazymax/dockerfile:buildattrs
Sources:
Type: docker-image
Ref: docker.io/docker/buildx-bin:0.6.1@sha256:a652ced4a4141977c7daaed0a074dcd9844a78d7d2615465b12f433ae6dd29f0
Pin: sha256:a652ced4a4141977c7daaed0a074dcd9844a78d7d2615465b12f433ae6dd29f0
Type: docker-image
Ref: docker.io/library/alpine:3.13@sha256:026f721af4cf2843e07bba648e158fb35ecc876d822130633cc49f707f0fc88c
Ref: docker.io/library/alpine:3.13
Pin: sha256:026f721af4cf2843e07bba648e158fb35ecc876d822130633cc49f707f0fc88c
Type: docker-image
Ref: docker.io/moby/buildkit:v0.9.0@sha256:8dc668e7f66db1c044aadbed306020743516a94848793e0f81f94a087ee78cab
Ref: docker.io/moby/buildkit:v0.9.0
Pin: sha256:8dc668e7f66db1c044aadbed306020743516a94848793e0f81f94a087ee78cab
Type: docker-image
@ -251,10 +288,10 @@ $ docker buildx imagetools inspect crazymax/buildx:buildinfo --format "{{json .}
"name": "crazymax/buildx:buildinfo",
"manifest": {
"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
"digest": "sha256:ac98300a6580fa30d9350a868de2a09f5a0190f4ba94e6c0ead8cc892150977c",
"digest": "sha256:899d2c7acbc124d406820857bb51d9089717bbe4e22b97eb4bc5789e99f09f83",
"size": 2628
},
"config": {
"image": {
"created": "2022-02-24T12:27:43.627154558Z",
"architecture": "amd64",
"os": "linux",
@ -379,7 +416,7 @@ $ docker buildx imagetools inspect crazymax/buildx:buildinfo --format "{{json .}
"build-arg:bar": "foo",
"build-arg:foo": "bar",
"filename": "Dockerfile",
"source": "crazymax/dockerfile:buildattrs"
"source": "docker/dockerfile-upstream:master-labs"
},
"sources": [
{
@ -389,12 +426,12 @@ $ docker buildx imagetools inspect crazymax/buildx:buildinfo --format "{{json .}
},
{
"type": "docker-image",
"ref": "docker.io/library/alpine:3.13@sha256:026f721af4cf2843e07bba648e158fb35ecc876d822130633cc49f707f0fc88c",
"ref": "docker.io/library/alpine:3.13",
"pin": "sha256:026f721af4cf2843e07bba648e158fb35ecc876d822130633cc49f707f0fc88c"
},
{
"type": "docker-image",
"ref": "docker.io/moby/buildkit:v0.9.0@sha256:8dc668e7f66db1c044aadbed306020743516a94848793e0f81f94a087ee78cab",
"ref": "docker.io/moby/buildkit:v0.9.0",
"pin": "sha256:8dc668e7f66db1c044aadbed306020743516a94848793e0f81f94a087ee78cab"
},
{
@ -412,6 +449,81 @@ $ docker buildx imagetools inspect crazymax/buildx:buildinfo --format "{{json .}
}
```
#### Multi-platform
Multi-platform images are supported for `.Image` and `.BuildInfo` fields. If
you want to pick up a specific platform, you can specify it using the `index`
go template function:
```console
$ docker buildx imagetools inspect --format '{{json (index .Image "linux/s390x")}}' moby/buildkit:master
```
```json
{
"created": "2022-02-25T17:13:27.89891722Z",
"architecture": "s390x",
"os": "linux",
"config": {
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Entrypoint": [
"buildkitd"
],
"Volumes": {
"/var/lib/buildkit": {}
}
},
"rootfs": {
"type": "layers",
"diff_ids": [
"sha256:41048e32d0684349141cf05f629c5fc3c5915d1f3426b66dbb8953a540e01e1e",
"sha256:2651209b9208fff6c053bc3c17353cb07874e50f1a9bc96d6afd03aef63de76a",
"sha256:6741ed7e73039d853fa8902246a4c7e8bf9dd09652fd1b08251bc5f9e8876a7f",
"sha256:92ac046adeeb65c86ae3f0b458dee04ad4a462e417661c04d77642c66494f69b"
]
},
"history": [
{
"created": "2021-11-24T20:41:23.709681315Z",
"created_by": "/bin/sh -c #(nop) ADD file:cd24c711a2ef431b3ff94f9a02bfc42f159bc60de1d0eceecafea4e8af02441d in / "
},
{
"created": "2021-11-24T20:41:23.94211262Z",
"created_by": "/bin/sh -c #(nop) CMD [\"/bin/sh\"]",
"empty_layer": true
},
{
"created": "2022-01-26T18:15:21.449825391Z",
"created_by": "RUN /bin/sh -c apk add --no-cache fuse3 git openssh pigz xz \u0026\u0026 ln -s fusermount3 /usr/bin/fusermount # buildkit",
"comment": "buildkit.dockerfile.v0"
},
{
"created": "2022-02-24T00:34:00.924540012Z",
"created_by": "COPY examples/buildctl-daemonless/buildctl-daemonless.sh /usr/bin/ # buildkit",
"comment": "buildkit.dockerfile.v0"
},
{
"created": "2022-02-25T17:13:27.89891722Z",
"created_by": "VOLUME [/var/lib/buildkit]",
"comment": "buildkit.dockerfile.v0",
"empty_layer": true
},
{
"created": "2022-02-25T17:13:27.89891722Z",
"created_by": "COPY / /usr/bin/ # buildkit",
"comment": "buildkit.dockerfile.v0"
},
{
"created": "2022-02-25T17:13:27.89891722Z",
"created_by": "ENTRYPOINT [\"buildkitd\"]",
"comment": "buildkit.dockerfile.v0",
"empty_layer": true
}
]
}
```
### <a name="raw"></a> Show original, unformatted JSON manifest (--raw)
Use the `--raw` option to print the unformatted JSON manifest bytes.
@ -460,7 +572,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
"manifests": [
{
"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
"digest": "sha256:905307ef07e366e5977163218b9f01e9553fe2c15fe5e4a529328f91b510351d",
"digest": "sha256:667d28c9fb33820ce686887a717a148e89fa77f9097f9352996bbcce99d352b1",
"size": 1158,
"platform": {
"architecture": "amd64",
@ -469,7 +581,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
},
{
"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
"digest": "sha256:250a6dd96c377a1084cf8ea766916ae643f2fdf0f2e68728b3fda0a4d4669a2e",
"digest": "sha256:71789527b64ab3d7b3de01d364b449cd7f7a3da758218fbf73b9c9aae05a6775",
"size": 1158,
"platform": {
"architecture": "arm",
@ -479,7 +591,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
},
{
"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
"digest": "sha256:7ee37cac4b2b8b54d28127a10aa783260430a145bafab169cec88b8a20462678",
"digest": "sha256:fb64667e1ce6ab0d05478f3a8402af07b27737598dcf9a510fb1d792b13a66be",
"size": 1158,
"platform": {
"architecture": "arm64",
@ -488,7 +600,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
},
{
"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
"digest": "sha256:0ba8d091f6b346a5c45b06dcb534b6b6945a681fcdf40c195e1d6619115dffd2",
"digest": "sha256:1c3ddf95a0788e23f72f25800c05abc4458946685e2b66788c3d978cde6da92b",
"size": 1158,
"platform": {
"architecture": "s390x",
@ -497,7 +609,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
},
{
"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
"digest": "sha256:964d4b79d1be97ce22e6fe0c29be1d6cc63da10e5b8a21505851014c9846268a",
"digest": "sha256:05bcde6d460a284e5bc88026cd070277e8380355de3126cbc8fe8a452708c6b1",
"size": 1159,
"platform": {
"architecture": "ppc64le",
@ -506,7 +618,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
},
{
"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
"digest": "sha256:44d8de2c5f813b48d649a3a6cc348b57387cc22355897a14c7447cbfa03d079c",
"digest": "sha256:c04c57765304ab84f4f9807fff3e11605c3a60e16435c734b02c723680f6bd6e",
"size": 1158,
"platform": {
"architecture": "riscv64",

4
util/imagetools/inspect.go
Unescape Escape View File

@ -163,10 +163,10 @@ func RegistryAuthForRef(ref string, a Auth) (string, error) {
return base64.URLEncoding.EncodeToString(buf), nil
}
func (r *Resolver) ImageConfig(ctx context.Context, in string) (digest.Digest, []byte, error) {
func (r *Resolver) ImageConfig(ctx context.Context, in string, platform *ocispec.Platform) (digest.Digest, []byte, error) {
in, _, err := r.Resolve(ctx, in)
if err != nil {
return "", nil, err
}
return imageutil.Config(ctx, in, r.resolver(), r.buffer, nil, nil)
return imageutil.Config(ctx, in, r.resolver(), r.buffer, nil, platform)
}

174
util/imagetools/printers.go
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@ -32,8 +32,7 @@ type Printer struct {
ref reference.Named
manifest ocispecs.Descriptor
index ocispecs.Index
image ocispecs.Image
binfo binfotypes.BuildInfo
platforms []ocispecs.Platform
}
func NewPrinter(ctx context.Context, opt Opt, name string, format string) (*Printer, error) {
@ -54,31 +53,14 @@ func NewPrinter(ctx context.Context, opt Opt, name string, format string) (*Prin
return nil, err
}
_, dtcic, err := resolver.ImageConfig(ctx, name)
if err != nil {
return nil, err
}
var image ocispecs.Image
if err = json.Unmarshal(dtcic, &image); err != nil {
return nil, err
}
var binfo binfotypes.BuildInfo
if len(dtcic) > 0 {
var biconfig binfotypes.ImageConfig
if err := json.Unmarshal(dtcic, &biconfig); err != nil {
return nil, errors.Wrap(err, "failed to unmarshal image config")
}
if len(biconfig.BuildInfo) > 0 {
bidec, err := base64.StdEncoding.DecodeString(biconfig.BuildInfo)
if err != nil {
return nil, errors.Wrap(err, "failed to decode build info")
}
if err = json.Unmarshal(bidec, &binfo); err != nil {
return nil, errors.Wrap(err, "failed to unmarshal build info")
}
var pforms []ocispecs.Platform
switch manifest.MediaType {
case images.MediaTypeDockerSchema2ManifestList, ocispecs.MediaTypeImageIndex:
for _, m := range index.Manifests {
pforms = append(pforms, *m.Platform)
}
default:
pforms = append(pforms, platforms.DefaultSpec())
}
return &Printer{
@ -90,8 +72,7 @@ func NewPrinter(ctx context.Context, opt Opt, name string, format string) (*Prin
ref: ref,
manifest: manifest,
index: index,
image: image,
binfo: binfo,
platforms: pforms,
}, nil
}
@ -101,6 +82,21 @@ func (p *Printer) Print(raw bool, out io.Writer) error {
return err
}
if p.format == "" {
w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
_, _ = fmt.Fprintf(w, "Name:\t%s\n", p.ref.String())
_, _ = fmt.Fprintf(w, "MediaType:\t%s\n", p.manifest.MediaType)
_, _ = fmt.Fprintf(w, "Digest:\t%s\n", p.manifest.Digest)
_ = w.Flush()
switch p.manifest.MediaType {
case images.MediaTypeDockerSchema2ManifestList, ocispecs.MediaTypeImageIndex:
if err := p.printManifestList(out); err != nil {
return err
}
}
return nil
}
tpl, err := template.New("").Funcs(template.FuncMap{
"json": func(v interface{}) string {
b, _ := json.MarshalIndent(v, "", " ")
@ -111,6 +107,22 @@ func (p *Printer) Print(raw bool, out io.Writer) error {
return err
}
imageconfigs := make(map[string]*ocispecs.Image)
buildinfos := make(map[string]*binfotypes.BuildInfo)
for _, pform := range p.platforms {
img, dtic, err := p.getImageConfig(&pform)
if err != nil {
return err
} else if img != nil {
imageconfigs[platforms.Format(pform)] = img
}
if bi, err := p.getBuildInfo(dtic); err != nil {
return err
} else if bi != nil {
buildinfos[platforms.Format(pform)] = bi
}
}
format := tpl.Root.String()
var manifest interface{}
@ -120,23 +132,12 @@ func (p *Printer) Print(raw bool, out io.Writer) error {
case images.MediaTypeDockerSchema2ManifestList, ocispecs.MediaTypeImageIndex:
manifest = p.index
}
v := struct {
Name string `json:"name,omitempty"`
Manifest interface{} `json:"manifest,omitempty"`
Config ocispecs.Image `json:"config,omitempty"`
BuildInfo binfotypes.BuildInfo `json:"buildinfo,omitempty"`
}{
Name: p.name,
Manifest: manifest,
Config: p.image,
BuildInfo: p.binfo,
}
switch {
case strings.HasPrefix(format, "{{.Manifest"), strings.HasPrefix(format, "{{.Config"), strings.HasPrefix(format, "{{.BuildInfo"):
// TODO: print formatted config
case strings.HasPrefix(format, "{{.Manifest"), strings.HasPrefix(format, "{{.BuildInfo"):
w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
_, _ = fmt.Fprintf(w, "Name:\t%s\n", p.ref.String())
_ = w.Flush()
if strings.HasPrefix(format, "{{.Manifest") {
_, _ = fmt.Fprintf(w, "MediaType:\t%s\n", p.manifest.MediaType)
_, _ = fmt.Fprintf(w, "Digest:\t%s\n", p.manifest.Digest)
@ -145,13 +146,43 @@ func (p *Printer) Print(raw bool, out io.Writer) error {
case images.MediaTypeDockerSchema2ManifestList, ocispecs.MediaTypeImageIndex:
_ = p.printManifestList(out)
}
} else if strings.HasPrefix(format, "{{.Config") {
// TODO: print formatted config
} else if strings.HasPrefix(format, "{{.BuildInfo") {
_ = p.printBuildInfo(p.binfo, "", out)
_ = w.Flush()
_ = p.printBuildInfos(buildinfos, out)
}
default:
return tpl.Execute(out, v)
if len(p.platforms) > 1 {
return tpl.Execute(out, struct {
Name string `json:"name,omitempty"`
Manifest interface{} `json:"manifest,omitempty"`
Image map[string]*ocispecs.Image `json:"image,omitempty"`
BuildInfo map[string]*binfotypes.BuildInfo `json:"buildinfo,omitempty"`
}{
Name: p.name,
Manifest: manifest,
Image: imageconfigs,
BuildInfo: buildinfos,
})
}
var imageconfig *ocispecs.Image
for _, ic := range imageconfigs {
imageconfig = ic
}
var buildinfo *binfotypes.BuildInfo
for _, bi := range buildinfos {
buildinfo = bi
}
return tpl.Execute(out, struct {
Name string `json:"name,omitempty"`
Manifest interface{} `json:"manifest,omitempty"`
Image *ocispecs.Image `json:"image,omitempty"`
BuildInfo *binfotypes.BuildInfo `json:"buildinfo,omitempty"`
}{
Name: p.name,
Manifest: manifest,
Image: imageconfig,
BuildInfo: buildinfo,
})
}
return nil
@ -198,7 +229,24 @@ func (p *Printer) printManifestList(out io.Writer) error {
return w.Flush()
}
func (p *Printer) printBuildInfo(bi binfotypes.BuildInfo, pfx string, out io.Writer) error {
func (p *Printer) printBuildInfos(bis map[string]*binfotypes.BuildInfo, out io.Writer) error {
if len(bis) == 1 {
for _, bi := range bis {
return p.printBuildInfo(bi, "", out)
}
}
for pform, bi := range bis {
w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
_, _ = fmt.Fprintf(w, "\t\nPlatform:\t%s\t\n", pform)
_ = w.Flush()
if err := p.printBuildInfo(bi, "", out); err != nil {
return err
}
}
return nil
}
func (p *Printer) printBuildInfo(bi *binfotypes.BuildInfo, pfx string, out io.Writer) error {
w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
_, _ = fmt.Fprintf(w, "%sFrontend:\t%s\n", pfx, bi.Frontend)
@ -233,10 +281,42 @@ func (p *Printer) printBuildInfo(bi binfotypes.BuildInfo, pfx string, out io.Wri
}
_, _ = fmt.Fprintf(w, "%sName:\t%s\n", pfx+defaultPfx, k)
_ = w.Flush()
_ = p.printBuildInfo(v, pfx+defaultPfx, out)
_ = p.printBuildInfo(&v, pfx+defaultPfx, out)
firstPass = false
}
}
return w.Flush()
}
func (p *Printer) getImageConfig(platform *ocispecs.Platform) (*ocispecs.Image, []byte, error) {
_, dtic, err := p.resolver.ImageConfig(p.ctx, p.name, platform)
if err != nil {
return nil, nil, err
}
var img *ocispecs.Image
if err = json.Unmarshal(dtic, &img); err != nil {
return nil, nil, err
}
return img, dtic, nil
}
func (p *Printer) getBuildInfo(dtic []byte) (*binfotypes.BuildInfo, error) {
var binfo *binfotypes.BuildInfo
if len(dtic) > 0 {
var biconfig binfotypes.ImageConfig
if err := json.Unmarshal(dtic, &biconfig); err != nil {
return nil, errors.Wrap(err, "failed to unmarshal image config")
}
if len(biconfig.BuildInfo) > 0 {
dtbi, err := base64.StdEncoding.DecodeString(biconfig.BuildInfo)
if err != nil {
return nil, errors.Wrap(err, "failed to decode build info")
}
if err = json.Unmarshal(dtbi, &binfo); err != nil {
return nil, errors.Wrap(err, "failed to unmarshal build info")
}
}
}
return binfo, nil
}

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