Add SeedImage.status.checksumURL (#827) (#828)

Signed-off-by: Andrea Mazzotti <[email protected]>

.obs/chartfile/crds/templates/crds.yaml

@@ -3657,6 +3657,10 @@ spec:
             type: object
           status:
             properties:
+              checksumURL:
+                description: ChecksumURL the URL from which the SeedImage checksum
+                  can be downloaded once the image is built.
+                type: string
               conditions:
                 description: Conditions describe the state of the machine registration
                   object.

api/v1beta1/seedimage_type.go

@@ -114,6 +114,9 @@ type SeedImageStatus struct {
 	// DownloadURL the URL from which the SeedImage can be downloaded once built.
 	// +optional
 	DownloadURL string `json:"downloadURL,omitempty"`
+	// ChecksumURL the URL from which the SeedImage checksum can be downloaded once the image is built.
+	// +optional
+	ChecksumURL string `json:"checksumURL,omitempty"`
 	// State reflect the state of the seed image build process.
 	// +kubebuilder:validation:Enum=Initialized;Started;Completed;Failed;NotStarted
 	// +optional

config/crd/bases/elemental.cattle.io_seedimages.yaml

@@ -159,6 +159,10 @@ spec:
             type: object
           status:
             properties:
+              checksumURL:
+                description: ChecksumURL the URL from which the SeedImage checksum
+                  can be downloaded once the image is built.
+                type: string
               conditions:
                 description: Conditions describe the state of the machine registration
                   object.

controllers/seedimage_controller.go

@@ -317,7 +317,7 @@ func (r *SeedImageReconciler) reconcileConfigMapObject(ctx context.Context, seed
 		return fmt.Errorf("failed marshalling cloud-config: %w", err)
 	}
 
-	outputName := fmt.Sprintf("elemental-%s-%s.%s", seedImg.Spec.MachineRegistrationRef.Name, time.Now().Format(time.RFC3339), seedImg.Spec.Type)
+	outputName := fmt.Sprintf("%s-%s.%s", mRegistration.Name, time.Now().Format(time.RFC3339), seedImg.Spec.Type)
 
 	if err := r.Get(ctx, types.NamespacedName{
 		Name:      seedImg.Name,
@@ -448,13 +448,21 @@ func (r *SeedImageReconciler) updateStatusFromPod(ctx context.Context, seedImg *
 			return errMsg
 		}
 
-		// Use the registration name or else default to "elemental" for the image file name
-		imageName := "elemental"
-		if seedImg.Spec.MachineRegistrationRef != nil && len(seedImg.Spec.MachineRegistrationRef.Name) > 0 {
-			imageName = seedImg.Spec.MachineRegistrationRef.Name
+		podConfigMap := &corev1.ConfigMap{}
+		if err := r.Get(ctx, types.NamespacedName{
+			Name:      seedImg.Name,
+			Namespace: seedImg.Namespace,
+		}, podConfigMap); err != nil {
+			return fmt.Errorf("getting ConfigMap '%s': %w", seedImg.Name, err)
+		}
+		outputName, found := podConfigMap.Data[configMapKeyOutputName]
+		if !found {
+			return fmt.Errorf("Could not find '%s' value in ConfigMap '%s'", configMapKeyOutputName, seedImg.Name)
 		}
+
 		seedImg.Status.DownloadToken = token
-		seedImg.Status.DownloadURL = fmt.Sprintf("https://%s/elemental/seedimage/%s/%s.%s", rancherURL, token, imageName, seedImg.Spec.Type)
+		seedImg.Status.DownloadURL = fmt.Sprintf("https://%s/elemental/seedimage/%s/%s", rancherURL, token, outputName)
+		seedImg.Status.ChecksumURL = fmt.Sprintf("%s.sha256", seedImg.Status.DownloadURL)
 		meta.SetStatusCondition(&seedImg.Status.Conditions, metav1.Condition{
 			Type:    elementalv1.SeedImageConditionReady,
 			Status:  metav1.ConditionTrue,
@@ -482,6 +490,7 @@ func (r *SeedImageReconciler) updateStatusFromPod(ctx context.Context, seedImg *
 			return errMsg
 		}
 		seedImg.Status.DownloadURL = ""
+		seedImg.Status.ChecksumURL = ""
 		meta.SetStatusCondition(&seedImg.Status.Conditions, metav1.Condition{
 			Type:    elementalv1.SeedImageConditionReady,
 			Status:  metav1.ConditionTrue,
@@ -519,6 +528,7 @@ func (r *SeedImageReconciler) deleteChildResources(ctx context.Context, seedImg
 		}
 	}
 	seedImg.Status.DownloadURL = ""
+	seedImg.Status.ChecksumURL = ""
 
 	foundSvc := &corev1.Service{}
 	svcName := seedImg.Name
@@ -593,14 +603,13 @@ func fillBuildImagePod(seedImg *elementalv1.SeedImage, buildImg string, pullPoli
 							ContainerPort: 80,
 						},
 					},
-					Args: []string{"-d", "$(ELEMENTAL_OUTPUT_NAME)", "-t", fmt.Sprintf("%d", deadline*60)},
+					Args: []string{"-d", "/srv", "-t", fmt.Sprintf("%d", deadline*60)},
 					VolumeMounts: []corev1.VolumeMount{
 						{
 							Name:      "iso-storage",
 							MountPath: "/srv",
 						},
 					},
-					WorkingDir: "/srv",
 					Env: []corev1.EnvVar{
 						{
 							Name: "ELEMENTAL_OUTPUT_NAME",
@@ -672,6 +681,8 @@ func defaultRawInitContainers(seedImg *elementalv1.SeedImage, buildImg string, p
         --system $(ELEMENTAL_BASE_IMAGE)`, platformArg),
 
 		"mv /iso/elemental.raw /iso/$(ELEMENTAL_OUTPUT_NAME)",
+
+		"cd /iso && sha256sum $(ELEMENTAL_OUTPUT_NAME) > $(ELEMENTAL_OUTPUT_NAME).sha256 && cd ../",
 	}
 
 	return []corev1.Container{
@@ -725,6 +736,8 @@ func defaultIsoInitContainers(seedImg *elementalv1.SeedImage, buildImg string, p
 		)
 	}
 
+	buildCommands = append(buildCommands, "cd /iso && sha256sum $(ELEMENTAL_OUTPUT_NAME) > $(ELEMENTAL_OUTPUT_NAME).sha256 && cd ../")
+
 	containers = append(
 		containers, corev1.Container{
 			Name:            "build",

pkg/server/api_seedimage.go

@@ -35,12 +35,13 @@ func (i *InventoryServer) apiSeedImage(resp http.ResponseWriter, req *http.Reque
 	var seedImg *elementalv1.SeedImage
 
 	// expected splittedPath = {"seedimage", {token}, {imgName.imgType}}
-	if len(splittedPath) < 2 {
+	if len(splittedPath) < 3 {
 		err = fmt.Errorf("unexpected path: %v", splittedPath)
 		http.Error(resp, err.Error(), http.StatusNotFound)
 		return err
 	}
 	token := splittedPath[1]
+	fileName := splittedPath[2]
 
 	if seedImg, err = i.getSeedImage(token); err != nil {
 		http.Error(resp, err.Error(), http.StatusNotFound)
@@ -54,7 +55,7 @@ func (i *InventoryServer) apiSeedImage(resp http.ResponseWriter, req *http.Reque
 		return errMsg
 	}
 
-	rawURL := fmt.Sprintf("http://%s", svc.Spec.ClusterIP)
+	rawURL := fmt.Sprintf("http://%s/%s", svc.Spec.ClusterIP, fileName)
 	seedImgURL, err := url.Parse(rawURL)
 	if err != nil {
 		errMsg := fmt.Errorf("failed to parse url '%s'", rawURL)

pkg/server/api_seedimage_test.go

@@ -52,12 +52,12 @@ func TestApiSeedImage(t *testing.T) {
 		t.Logf("Testing token %s\n", test.token)
 		req := httptest.NewRequest(
 			"GET",
-			fmt.Sprintf("%s/%s", "http://localhost/elemental/seedimage/", test.token),
+			fmt.Sprintf("%s/%s/foo.bar", "http://localhost/elemental/seedimage/", test.token),
 			nil)
 		resp := httptest.NewRecorder()
 		splittedPath := test.splittedPath
 		if splittedPath == nil {
-			splittedPath = []string{"seedimage", test.token}
+			splittedPath = []string{"seedimage", test.token, "foo.bar"}
 		}
 
 		err := server.apiSeedImage(resp, req, splittedPath)