Read secrets for client-onboarding-token-validation

Signed-off-by: Mrudraia1 <[email protected]>

controllers/storagecluster/storageclient.go

@@ -17,8 +17,7 @@ import (
 )
 
 const (
-	tokenLifetimeInHours         = 48
-	onboardingPrivateKeyFilePath = "/etc/private-key/key"
+	tokenLifetimeInHours = 48
 
 	ocsClientConfigMapName = "ocs-client-operator-config"
 	deployCSIKey           = "DEPLOY_CSI"
@@ -44,7 +43,11 @@ func (s *storageClient) ensureCreated(r *StorageClusterReconciler, storagecluste
 	storageClient.Name = storagecluster.Name
 	_, err := controllerutil.CreateOrUpdate(r.ctx, r.Client, storageClient, func() error {
 		if storageClient.Status.ConsumerID == "" {
-			token, err := util.GenerateClientOnboardingToken(tokenLifetimeInHours, onboardingPrivateKeyFilePath, nil)
+			privateKey, err := util.LoadOnboardingValidationPrivateKey(r.ctx, r.Client, r.OperatorNamespace)
+			if err != nil {
+				return fmt.Errorf("unable to get Parsed Private Key: %v", err)
+			}
+			token, err := util.GenerateClientOnboardingToken(tokenLifetimeInHours, privateKey, nil)
 			if err != nil {
 				return fmt.Errorf("unable to generate onboarding token: %v", err)
 			}

controllers/util/provider.go

@@ -1,6 +1,7 @@
 package util
 
 import (
+	"context"
 	"crypto"
 	"crypto/rand"
 	"crypto/rsa"
@@ -10,17 +11,20 @@ import (
 	"encoding/json"
 	"encoding/pem"
 	"fmt"
-	"os"
 	"time"
 
 	"github.com/google/uuid"
 	"github.com/red-hat-storage/ocs-operator/v4/services"
+	corev1 "k8s.io/api/core/v1"
+	"sigs.k8s.io/controller-runtime/pkg/client"
 )
 
+const onboardingValidationPrivateKeySecretName = "onboarding-private-key"
+
 // GenerateClientOnboardingToken generates a ocs-client token valid for a duration of "tokenLifetimeInHours".
 // The token content is predefined and signed by the private key which'll be read from supplied "privateKeyPath".
 // The storageQuotaInGiB is optional, and it is used to limit the storage of PVC in the application cluster.
-func GenerateClientOnboardingToken(tokenLifetimeInHours int, privateKeyPath string, storageQuotainGib *uint) (string, error) {
+func GenerateClientOnboardingToken(tokenLifetimeInHours int, privateKey *rsa.PrivateKey, storageQuotainGib *uint) (string, error) {
 	tokenExpirationDate := time.Now().
 		Add(time.Duration(tokenLifetimeInHours) * time.Hour).
 		Unix()
@@ -32,7 +36,7 @@ func GenerateClientOnboardingToken(tokenLifetimeInHours int, privateKeyPath stri
 		StorageQuotaInGiB: storageQuotainGib,
 	}
 
-	token, err := encodeAndSignOnboardingToken(privateKeyPath, ticket)
+	token, err := encodeAndSignOnboardingToken(privateKey, ticket)
 	if err != nil {
 		return "", err
 	}
@@ -41,7 +45,7 @@ func GenerateClientOnboardingToken(tokenLifetimeInHours int, privateKeyPath stri
 
 // GeneratePeerOnboardingToken generates a ocs-peer token valid for a duration of "tokenLifetimeInHours".
 // The token content is predefined and signed by the private key which'll be read from supplied "privateKeyPath".
-func GeneratePeerOnboardingToken(tokenLifetimeInHours int, privateKeyPath string) (string, error) {
+func GeneratePeerOnboardingToken(tokenLifetimeInHours int, privateKey *rsa.PrivateKey) (string, error) {
 	tokenExpirationDate := time.Now().
 		Add(time.Duration(tokenLifetimeInHours) * time.Hour).
 		Unix()
@@ -51,7 +55,7 @@ func GeneratePeerOnboardingToken(tokenLifetimeInHours int, privateKeyPath string
 		ExpirationDate: tokenExpirationDate,
 		SubjectRole:    services.PeerRole,
 	}
-	token, err := encodeAndSignOnboardingToken(privateKeyPath, ticket)
+	token, err := encodeAndSignOnboardingToken(privateKey, ticket)
 	if err != nil {
 		return "", err
 	}
@@ -60,7 +64,7 @@ func GeneratePeerOnboardingToken(tokenLifetimeInHours int, privateKeyPath string
 
 // encodeAndSignOnboardingToken generates a token from the ticket.
 // The token content is predefined and signed by the private key which'll be read from supplied "privateKeyPath".
-func encodeAndSignOnboardingToken(privateKeyPath string, ticket services.OnboardingTicket) (string, error) {
+func encodeAndSignOnboardingToken(privateKey *rsa.PrivateKey, ticket services.OnboardingTicket) (string, error) {
 	payload, err := json.Marshal(ticket)
 	if err != nil {
 		return "", fmt.Errorf("failed to marshal the payload: %v", err)
@@ -75,11 +79,6 @@ func encodeAndSignOnboardingToken(privateKeyPath string, ticket services.Onboard
 		return "", fmt.Errorf("failed to hash onboarding token payload: %v", err)
 	}
 
-	privateKey, err := readAndDecodePrivateKey(privateKeyPath)
-	if err != nil {
-		return "", fmt.Errorf("failed to read and decode private key: %v", err)
-	}
-
 	msgHashSum := msgHash.Sum(nil)
 	// In order to generate the signature, we provide a random number generator,
 	// our private key, the hashing algorithm that we used, and the hash sum
@@ -93,16 +92,27 @@ func encodeAndSignOnboardingToken(privateKeyPath string, ticket services.Onboard
 	return fmt.Sprintf("%s.%s", encodedPayload, encodedSignature), nil
 }
 
-func readAndDecodePrivateKey(privateKeyPath string) (*rsa.PrivateKey, error) {
-	pemString, err := os.ReadFile(privateKeyPath)
+func LoadOnboardingValidationPrivateKey(ctx context.Context, cl client.Client, ns string) (*rsa.PrivateKey, error) {
+	privateSecret := &corev1.Secret{}
+	privateSecret.Name = onboardingValidationPrivateKeySecretName
+	privateSecret.Namespace = ns
+	var err error
+	err = cl.Get(ctx, client.ObjectKeyFromObject(privateSecret), privateSecret)
 	if err != nil {
-		return nil, fmt.Errorf("failed to read private key: %v", err)
+		return nil, fmt.Errorf("failed to get private secret: %v", err)
 	}
 
-	Block, _ := pem.Decode(pemString)
-	privateKey, err := x509.ParsePKCS1PrivateKey(Block.Bytes)
-	if err != nil {
-		return nil, fmt.Errorf("failed to parse private key: %v", err)
+	if privateSecret.Data != nil {
+		if privateSecretKey, ok := privateSecret.Data["key"]; ok {
+			Block, _ := pem.Decode(privateSecretKey)
+			privateKey, err := x509.ParsePKCS1PrivateKey(Block.Bytes)
+			if err != nil {
+				return nil, fmt.Errorf("failed to parse private key: %v", err)
+			}
+			return privateKey, nil
+		}
 	}
-	return privateKey, nil
+
+	return nil, fmt.Errorf("No data found in secret")
+
 }

deploy/ocs-operator/manifests/ocs-operator.clusterserviceversion.yaml

@@ -629,6 +629,10 @@ spec:
                 - name: ONBOARDING_TOKEN_LIFETIME
                 - name: UX_BACKEND_PORT
                 - name: TLS_ENABLED
+                - name: POD_NAMESPACE
+                  valueFrom:
+                    fieldRef:
+                      fieldPath: metadata.namespace
                 image: quay.io/ocs-dev/ocs-operator:latest
                 imagePullPolicy: IfNotPresent
                 name: ux-backend-server
@@ -639,8 +643,6 @@ spec:
                   readOnlyRootFilesystem: true
                   runAsNonRoot: true
                 volumeMounts:
-                - mountPath: /etc/private-key
-                  name: onboarding-private-key
                 - mountPath: /etc/tls/private
                   name: ux-cert-secret
               - args:
@@ -676,10 +678,6 @@ spec:
                 operator: Equal
                 value: "true"
               volumes:
-              - name: onboarding-private-key
-                secret:
-                  optional: true
-                  secretName: onboarding-private-key
               - name: ux-proxy-secret
                 secret:
                   secretName: ux-backend-proxy

services/ux-backend/handlers/onboarding/clienttokens/handler.go

@@ -1,6 +1,7 @@
 package clienttokens
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"math"
@@ -11,10 +12,7 @@ import (
 
 	"k8s.io/klog/v2"
 	"k8s.io/utils/ptr"
-)
-
-const (
-	onboardingPrivateKeyFilePath = "/etc/private-key/key"
+	"sigs.k8s.io/controller-runtime/pkg/client"
 )
 
 var unitToGib = map[string]uint{
@@ -23,26 +21,26 @@ var unitToGib = map[string]uint{
 	"Pi": 1024 * 1024,
 }
 
-func HandleMessage(w http.ResponseWriter, r *http.Request, tokenLifetimeInHours int) {
+func HandleMessage(ctx context.Context, w http.ResponseWriter, r *http.Request, tokenLifetimeInHours int, cl client.Client, namespace string) {
 	switch r.Method {
 	case "POST":
-		handlePost(w, r, tokenLifetimeInHours)
+		handlePost(ctx, w, r, tokenLifetimeInHours, cl, namespace)
 	default:
 		handleUnsupportedMethod(w, r)
 	}
 }
 
-func handlePost(w http.ResponseWriter, r *http.Request, tokenLifetimeInHours int) {
+func handlePost(ctx context.Context, w http.ResponseWriter, r *http.Request, tokenLifetimeInHours int, cl client.Client, namespace string) {
 	var storageQuotaInGiB *uint
 	// When ContentLength is 0 that means request body is empty and
 	// storage quota is unlimited
-	var err error
+
 	if r.ContentLength != 0 {
 		var quota = struct {
 			Value uint   `json:"value"`
 			Unit  string `json:"unit"`
 		}{}
-		if err = json.NewDecoder(r.Body).Decode(&quota); err != nil {
+		if err := json.NewDecoder(r.Body).Decode(&quota); err != nil {
 			http.Error(w, err.Error(), http.StatusBadRequest)
 			return
 		}
@@ -59,7 +57,14 @@ func handlePost(w http.ResponseWriter, r *http.Request, tokenLifetimeInHours int
 		storageQuotaInGiB = ptr.To(unitAsGiB * quota.Value)
 	}
 
-	if onboardingToken, err := util.GenerateClientOnboardingToken(tokenLifetimeInHours, onboardingPrivateKeyFilePath, storageQuotaInGiB); err != nil {
+	privateKey, err := util.LoadOnboardingValidationPrivateKey(ctx, cl, namespace)
+	klog.Info("Getting the Pem key")
+	if err != nil {
+		http.Error(w, fmt.Sprintf("Failed to get private key: %v", err), http.StatusBadRequest)
+		return
+	}
+
+	if onboardingToken, err := util.GenerateClientOnboardingToken(tokenLifetimeInHours, privateKey, storageQuotaInGiB); err != nil {
 		klog.Errorf("failed to get onboarding token: %v", err)
 		w.WriteHeader(http.StatusInternalServerError)
 		w.Header().Set("Content-Type", handlers.ContentTypeTextPlain)

services/ux-backend/handlers/onboarding/peertokens/handler.go

@@ -1,30 +1,38 @@
 package peertokens
 
 import (
+	"context"
 	"fmt"
 	"net/http"
 
 	"github.com/red-hat-storage/ocs-operator/v4/controllers/util"
 	"github.com/red-hat-storage/ocs-operator/v4/services/ux-backend/handlers"
 
 	"k8s.io/klog/v2"
+	"sigs.k8s.io/controller-runtime/pkg/client"
 )
 
-const (
-	onboardingPrivateKeyFilePath = "/etc/private-key/key"
-)
-
-func HandleMessage(w http.ResponseWriter, r *http.Request, tokenLifetimeInHours int) {
+func HandleMessage(w http.ResponseWriter, r *http.Request, tokenLifetimeInHours int, cl client.Client, namespace string) {
 	switch r.Method {
 	case "POST":
-		handlePost(w, r, tokenLifetimeInHours)
+		handlePost(w, r, tokenLifetimeInHours, cl, namespace)
 	default:
 		handleUnsupportedMethod(w, r)
 	}
 }
 
-func handlePost(w http.ResponseWriter, _ *http.Request, tokenLifetimeInHours int) {
-	if onboardingToken, err := util.GeneratePeerOnboardingToken(tokenLifetimeInHours, onboardingPrivateKeyFilePath); err != nil {
+func handlePost(w http.ResponseWriter, _ *http.Request, tokenLifetimeInHours int, cl client.Client, namespace string) {
+	var err error
+
+	ctx := context.TODO()
+	privateKey, err := util.LoadOnboardingValidationPrivateKey(ctx, cl, namespace)
+	klog.Info("Getting the Pem key")
+	if err != nil {
+		http.Error(w, fmt.Sprintf("Failed to get private key: %v", err), http.StatusBadRequest)
+		return
+	}
+
+	if onboardingToken, err := util.GeneratePeerOnboardingToken(tokenLifetimeInHours, privateKey); err != nil {
 		klog.Errorf("failed to get onboarding token: %v", err)
 		w.WriteHeader(http.StatusInternalServerError)
 		w.Header().Set("Content-Type", handlers.ContentTypeTextPlain)

services/ux-backend/main.go

@@ -7,10 +7,15 @@ import (
 	"os"
 	"strconv"
 
+	"github.com/red-hat-storage/ocs-operator/v4/controllers/util"
 	"github.com/red-hat-storage/ocs-operator/v4/services/ux-backend/handlers/onboarding/clienttokens"
 	"github.com/red-hat-storage/ocs-operator/v4/services/ux-backend/handlers/onboarding/peertokens"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
 
 	"k8s.io/klog/v2"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/client/config"
 )
 
 type serverConfig struct {
@@ -52,6 +57,25 @@ func loadAndValidateServerConfig() (*serverConfig, error) {
 	return &config, nil
 }
 
+func newK8sClient() (client.Client, error) {
+	klog.Info("Setting up k8s client")
+	scheme := runtime.NewScheme()
+	if err := corev1.AddToScheme(scheme); err != nil {
+		return nil, err
+	}
+
+	config, err := config.GetConfig()
+	if err != nil {
+		return nil, err
+	}
+	k8sClient, err := client.New(config, client.Options{Scheme: scheme})
+	if err != nil {
+		return nil, err
+	}
+
+	return k8sClient, nil
+}
+
 func main() {
 
 	klog.Info("Starting ux backend server")
@@ -63,18 +87,25 @@ func main() {
 		os.Exit(-1)
 	}
 
+	cl, err := newK8sClient()
+	if err != nil {
+		klog.Exitf("failed to create client: %v", err)
+	}
+
+	namespace := util.GetPodNamespace()
+
 	// TODO: remove '/onboarding-tokens' in the future
 	http.HandleFunc("/onboarding-tokens", func(w http.ResponseWriter, r *http.Request) {
 		// Set the Deprecation header
 		w.Header().Set("Deprecation", "true") // Standard "Deprecation" header
 		w.Header().Set("Link", "/onboarding/client-tokens; rel=\"alternate\"")
-		clienttokens.HandleMessage(w, r, config.tokenLifetimeInHours)
+		clienttokens.HandleMessage(r.Context(), w, r, config.tokenLifetimeInHours, cl, namespace)
 	})
 	http.HandleFunc("/onboarding/client-tokens", func(w http.ResponseWriter, r *http.Request) {
-		clienttokens.HandleMessage(w, r, config.tokenLifetimeInHours)
+		clienttokens.HandleMessage(r.Context(), w, r, config.tokenLifetimeInHours, cl, namespace)
 	})
 	http.HandleFunc("/onboarding/peer-tokens", func(w http.ResponseWriter, r *http.Request) {
-		peertokens.HandleMessage(w, r, config.tokenLifetimeInHours)
+		peertokens.HandleMessage(w, r, config.tokenLifetimeInHours, cl, namespace)
 	})
 
 	klog.Info("ux backend server listening on port ", config.listenPort)

tools/csv-merger/csv-merger.go

@@ -644,10 +644,6 @@ func getUXBackendServerDeployment() appsv1.DeploymentSpec {
 					{
 						Name: "ux-backend-server",
 						VolumeMounts: []corev1.VolumeMount{
-							{
-								Name:      "onboarding-private-key",
-								MountPath: "/etc/private-key",
-							},
 							{
 								Name:      "ux-cert-secret",
 								MountPath: "/etc/tls/private",
@@ -674,6 +670,14 @@ func getUXBackendServerDeployment() appsv1.DeploymentSpec {
 								Name:  "TLS_ENABLED",
 								Value: os.Getenv("TLS_ENABLED"),
 							},
+							{
+								Name: util.PodNamespaceEnvVar,
+								ValueFrom: &corev1.EnvVarSource{
+									FieldRef: &corev1.ObjectFieldSelector{
+										FieldPath: "metadata.namespace",
+									},
+								},
+							},
 						},
 						SecurityContext: &corev1.SecurityContext{
 							RunAsNonRoot:           ptr.To(true),
@@ -716,15 +720,6 @@ func getUXBackendServerDeployment() appsv1.DeploymentSpec {
 					},
 				},
 				Volumes: []corev1.Volume{
-					{
-						Name: "onboarding-private-key",
-						VolumeSource: corev1.VolumeSource{
-							Secret: &corev1.SecretVolumeSource{
-								SecretName: "onboarding-private-key",
-								Optional:   ptr.To(true),
-							},
-						},
-					},
 					{
 						Name: "ux-proxy-secret",
 						VolumeSource: corev1.VolumeSource{