support GEP-31 in place update

cloudprofilesync/imageupdater.go

@@ -86,6 +86,7 @@ func (iu *ImageUpdater) Update(ctx context.Context, cpSpec *gardenerv1beta1.Clou
 	}
 
 	for _, sourceImage := range sourceImages {
+		supportInPlaceUpdate := slices.Contains(sourceImage.Capabilities["feature"], USIFeature)
 		// Always write the full tag version (legacy path, safe for running Shoots).
 		if idx, exists := existingVersions[sourceImage.Version]; exists {
 			image.Versions[idx].Architectures = sourceImage.Architectures
@@ -103,6 +104,11 @@ func (iu *ImageUpdater) Update(ctx context.Context, cpSpec *gardenerv1beta1.Clou
 					},
 					Architectures: sourceImage.Architectures,
 				})
+				if supportInPlaceUpdate {
+					image.Versions[len(image.Versions)-1].InPlaceUpdates = &gardenerv1beta1.InPlaceUpdates{
+						Supported: supportInPlaceUpdate,
+					}
+				}
 				existingVersions[sourceImage.Version] = len(image.Versions) - 1
 			}
 		}
@@ -123,6 +129,11 @@ func (iu *ImageUpdater) Update(ctx context.Context, cpSpec *gardenerv1beta1.Clou
 					},
 					Architectures: slices.Clone(sourceImage.Architectures),
 				})
+				if supportInPlaceUpdate {
+					image.Versions[len(image.Versions)-1].InPlaceUpdates = &gardenerv1beta1.InPlaceUpdates{
+						Supported: supportInPlaceUpdate,
+					}
+				}
 				existingVersions[sourceImage.CleanVersion] = len(image.Versions) - 1
 			}
 		}

cloudprofilesync/imageupdater_test.go

@@ -224,6 +224,25 @@
 			Expect(json.Unmarshal(cpSpec.ProviderConfig.Raw, &fromProvider)).To(Succeed())
 			Expect(fromProvider).To(Equal(mockSource.images))
 		})
+
+		It("reflect inplace update ability to machineimage", func(ctx SpecContext) {
+			mockSource.images = []cloudprofilesync.SourceImage{{
+				Version:       "1.0.0",
+				Architectures: []string{"amd64"},
+				Capabilities:  map[string]gardencorev1beta1.CapabilityValues{"feature": {cloudprofilesync.USIFeature}}},
+			}
+			updater := cloudprofilesync.ImageUpdater{
+				Log:       logr.Discard(),
+				Source:    &mockSource,
+				ImageName: "test",
+			}
+			var cpSpec gardencorev1beta1.CloudProfileSpec
+			Expect(updater.Update(ctx, &cpSpec)).To(Succeed())
+			Expect(cpSpec.MachineImages[0].Versions).To(HaveLen(1))
+			Expect(cpSpec.MachineImages[0].Versions[0].Version).To(Equal("1.0.0"))
+			Expect(cpSpec.MachineImages[0].Versions[0].InPlaceUpdates.Supported).To(Equal(true))
+		})
+
 	})
 
 	Describe("flag ON (dual-write clean version)", func() {
@@ -318,5 +337,24 @@
 			Expect(cpSpec.MachineImages[0].Versions).To(HaveLen(1))
 			Expect(cpSpec.MachineImages[0].Versions[0].Version).To(Equal("1877.0.0"))
 		})
+
+		It("reflect inplace update ability to machineimage", func(ctx SpecContext) {
+			mockSource.images = []cloudprofilesync.SourceImage{{
+				Version:       "1.0.0",
+				Architectures: []string{"amd64"},
+				Capabilities:  map[string]gardencorev1beta1.CapabilityValues{"feature": {cloudprofilesync.USIFeature}}},
+			}
+			updater := cloudprofilesync.ImageUpdater{
+				Log:                logr.Discard(),
+				Source:             &mockSource,
+				ImageName:          "test",
+				EnableCapabilities: true,
+			}
+			var cpSpec gardencorev1beta1.CloudProfileSpec
+			Expect(updater.Update(ctx, &cpSpec)).To(Succeed())
+			Expect(cpSpec.MachineImages[0].Versions).To(HaveLen(1))
+			Expect(cpSpec.MachineImages[0].Versions[0].Version).To(Equal("1.0.0"))
+			Expect(cpSpec.MachineImages[0].Versions[0].InPlaceUpdates.Supported).To(Equal(true))
+		})
 	})
 })

cloudprofilesync/source.go

@@ -18,15 +18,31 @@
 	"oras.land/oras-go/v2/registry/remote/retry"
 )
 
+type Feature string
+
+const (
+	//ChostFeature represent having containerd
+	ChostFeature = "chost"
+	//PXEFeature represent pxe boot build
+	PXEFeature     = "_pxe"
+	SCIFeature     = "sci"
+	SCIBaseFeature = "scibase"
+	//CAPIFeature includes server, khost, and PXE; excludes SELinux and firewall
+	CAPIFeature = "capi"
+	// USIFeature shows UEFI build
+	USIFeature    = "_usi"
+	USIDevFeatrue = "_usidev"
+)
+
 // validFeatureValues is the allowlist of feature values extracted from the feature_set annotation.
 var validFeatureValues = map[string]struct{}{
-	"chost":   {},
-	"_pxe":    {},
-	"sci":     {},
-	"capi":    {},
-	"scibase": {},
-	"_usi":    {},
-	"_usidev": {},
+	ChostFeature:   {},
+	PXEFeature:     {},
+	SCIFeature:     {},
+	SCIBaseFeature: {},
+	CAPIFeature:    {},
+	USIFeature:     {},
+	USIDevFeatrue:  {},
 }
 
 func filterFeatureSet(featureSet string) []string {

go.mod

@@ -1,6 +1,6 @@
 module github.com/cobaltcore-dev/cloud-profile-sync
 
-go 1.26
+go 1.26.2
 
 require (
 	github.com/blang/semver/v4 v4.0.0