build: send buildinfo dependencies

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

build/build.go

@@ -32,6 +32,7 @@ import (
 	"github.com/docker/docker/pkg/urlutil"
 	"github.com/moby/buildkit/client"
 	"github.com/moby/buildkit/client/llb"
+	"github.com/moby/buildkit/exporter/containerimage/exptypes"
 	gateway "github.com/moby/buildkit/frontend/gateway/client"
 	"github.com/moby/buildkit/session"
 	"github.com/moby/buildkit/session/upload/uploadprovider"
@@ -1218,15 +1219,20 @@ func waitContextDeps(ctx context.Context, index int, results *waitmap.Map, so *c
 				}
 				so.FrontendInputs[k+"::"+platform] = st
 				so.FrontendAttrs[v+"::"+platform] = "input:" + k + "::" + platform
-				dt, ok := rr.Metadata["containerimage.config/"+platform]
-				if !ok {
-					continue
+				metadata := make(map[string][]byte)
+				if dt, ok := rr.Metadata[exptypes.ExporterImageConfigKey+"/"+platform]; ok {
+					metadata[exptypes.ExporterImageConfigKey] = dt
 				}
-				dt, err = json.Marshal(map[string][]byte{"containerimage.config": dt})
-				if err != nil {
-					return err
+				if dt, ok := rr.Metadata[exptypes.ExporterBuildInfo+"/"+platform]; ok {
+					metadata[exptypes.ExporterBuildInfo] = dt
+				}
+				if len(metadata) > 0 {
+					dt, err := json.Marshal(metadata)
+					if err != nil {
+						return err
+					}
+					so.FrontendAttrs["input-metadata:"+k+"::"+platform] = string(dt)
 				}
-				so.FrontendAttrs["input-metadata:"+k+"::"+platform] = string(dt)
 			}
 		}
 		if rr.Ref != nil {
@@ -1236,8 +1242,15 @@ func waitContextDeps(ctx context.Context, index int, results *waitmap.Map, so *c
 			}
 			so.FrontendInputs[k] = st
 			so.FrontendAttrs[v] = "input:" + k
-			if dt, ok := rr.Metadata["containerimage.config"]; ok {
-				dt, err = json.Marshal(map[string][]byte{"containerimage.config": dt})
+			metadata := make(map[string][]byte)
+			if dt, ok := rr.Metadata[exptypes.ExporterImageConfigKey]; ok {
+				metadata[exptypes.ExporterImageConfigKey] = dt
+			}
+			if dt, ok := rr.Metadata[exptypes.ExporterBuildInfo]; ok {
+				metadata[exptypes.ExporterBuildInfo] = dt
+			}
+			if len(metadata) > 0 {
+				dt, err := json.Marshal(metadata)
 				if err != nil {
 					return err
 				}

vendor/github.com/moby/buildkit/exporter/containerimage/exptypes/types.go

@@ -0,0 +1,28 @@
+package exptypes
+
+import (
+	digest "github.com/opencontainers/go-digest"
+	ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
+)
+
+const (
+	ExporterConfigDigestKey      = "config.digest"
+	ExporterImageDigestKey       = "containerimage.digest"
+	ExporterImageConfigKey       = "containerimage.config"
+	ExporterImageConfigDigestKey = "containerimage.config.digest"
+	ExporterImageDescriptorKey   = "containerimage.descriptor"
+	ExporterInlineCache          = "containerimage.inlinecache"
+	ExporterBuildInfo            = "containerimage.buildinfo"
+	ExporterPlatformsKey         = "refs.platforms"
+)
+
+const EmptyGZLayer = digest.Digest("sha256:4f4fb700ef54461cfa02571ae0db9a0dc1e0cdb5577484a6d75e68dc38e8acc1")
+
+type Platforms struct {
+	Platforms []Platform
+}
+
+type Platform struct {
+	ID       string
+	Platform ocispecs.Platform
+}

vendor/modules.txt

@@ -303,6 +303,7 @@ github.com/moby/buildkit/client/connhelper
 github.com/moby/buildkit/client/llb
 github.com/moby/buildkit/client/ociindex
 github.com/moby/buildkit/cmd/buildkitd/config
+github.com/moby/buildkit/exporter/containerimage/exptypes
 github.com/moby/buildkit/frontend/gateway/client
 github.com/moby/buildkit/frontend/gateway/grpcclient
 github.com/moby/buildkit/frontend/gateway/pb