validate member cluster config

Signed-off-by: Nyuswift <yuswiftli@yunify.com>

go.mod

@@ -102,6 +102,7 @@ require (
 	sigs.k8s.io/controller-runtime v0.6.4
 	sigs.k8s.io/controller-tools v0.4.0
 	sigs.k8s.io/kubefed v0.4.0
+	sigs.k8s.io/testing_frameworks v0.1.2
 )
 
 replace (

go.sum

@@ -887,6 +887,8 @@ sigs.k8s.io/kubefed v0.4.0/go.mod h1:YBq2sF7Usjfh1xmop6E7k+5USBYfhB5IMLitCoOnOkM
 sigs.k8s.io/kustomize v2.0.3+incompatible/go.mod h1:MkjgH3RdOWrievjo6c9T245dYlB5QeXV4WCbnt/PEpU=
 sigs.k8s.io/structured-merge-diff/v3 v3.0.0 h1:dOmIZBMfhcHS09XZkMyUgkq5trg3/jRyJYFZUiaOp8E=
 sigs.k8s.io/structured-merge-diff/v3 v3.0.0/go.mod h1:PlARxl6Hbt/+BC80dRLi1qAmnMqwqDg62YvvVkZjemw=
+sigs.k8s.io/testing_frameworks v0.1.2 h1:vK0+tvjF0BZ/RYFeZ1E6BYBwHJJXhjuZ3TdsEKH+UQM=
+sigs.k8s.io/testing_frameworks v0.1.2/go.mod h1:ToQrwSC3s8Xf/lADdZp3Mktcql9CG0UAmdJG9th5i0w=
 sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
 sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=

pkg/kapis/cluster/v1alpha1/handler.go

@@ -18,62 +18,75 @@ package v1alpha1
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"fmt"
-	"github.com/emicklei/go-restful"
 	"io"
 	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/emicklei/go-restful"
+	"gopkg.in/yaml.v2"
 	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/cli-runtime/pkg/printers"
+	k8sinformers "k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes"
 	v1 "k8s.io/client-go/listers/core/v1"
 	"k8s.io/client-go/rest"
 	"k8s.io/client-go/tools/clientcmd"
+
 	"kubesphere.io/kubesphere/pkg/api"
 	"kubesphere.io/kubesphere/pkg/apis/cluster/v1alpha1"
+	"kubesphere.io/kubesphere/pkg/apiserver/config"
+	"kubesphere.io/kubesphere/pkg/client/informers/externalversions"
 	clusterlister "kubesphere.io/kubesphere/pkg/client/listers/cluster/v1alpha1"
 	"kubesphere.io/kubesphere/pkg/version"
-	"net/http"
-	"net/url"
-	"strings"
-	"time"
-
-	"k8s.io/cli-runtime/pkg/printers"
 )
 
 const (
-	defaultAgentImage = "kubesphere/tower:v1.0"
-	defaultTimeout    = 10 * time.Second
+	defaultAgentImage    = "kubesphere/tower:v1.0"
+	defaultTimeout       = 10 * time.Second
+	KubesphereNamespace  = "kubesphere-system"
+	KubeSphereConfigName = "kubesphere-config"
+	KubeSphereApiServer  = "ks-apiserver"
 )
 
 var errClusterConnectionIsNotProxy = fmt.Errorf("cluster is not using proxy connection")
 
 type handler struct {
-	serviceLister v1.ServiceLister
-	clusterLister clusterlister.ClusterLister
-	proxyService  string
-	proxyAddress  string
-	agentImage    string
-	yamlPrinter   *printers.YAMLPrinter
+	serviceLister   v1.ServiceLister
+	clusterLister   clusterlister.ClusterLister
+	configMapLister v1.ConfigMapLister
+
+	proxyService string
+	proxyAddress string
+	agentImage   string
+	yamlPrinter  *printers.YAMLPrinter
 }
 
-func newHandler(serviceLister v1.ServiceLister, clusterLister clusterlister.ClusterLister, proxyService, proxyAddress, agentImage string) *handler {
+func newHandler(k8sInformers k8sinformers.SharedInformerFactory, ksInformers externalversions.SharedInformerFactory, proxyService, proxyAddress, agentImage string) *handler {
 
 	if len(agentImage) == 0 {
 		agentImage = defaultAgentImage
 	}
 
 	return &handler{
-		serviceLister: serviceLister,
-		clusterLister: clusterLister,
-		proxyService:  proxyService,
-		proxyAddress:  proxyAddress,
-		agentImage:    agentImage,
-		yamlPrinter:   &printers.YAMLPrinter{},
+		serviceLister:   k8sInformers.Core().V1().Services().Lister(),
+		clusterLister:   ksInformers.Cluster().V1alpha1().Clusters().Lister(),
+		configMapLister: k8sInformers.Core().V1().ConfigMaps().Lister(),
+
+		proxyService: proxyService,
+		proxyAddress: proxyAddress,
+		agentImage:   agentImage,
+		yamlPrinter:  &printers.YAMLPrinter{},
 	}
 }
 
@@ -269,6 +282,11 @@ func (h *handler) validateCluster(request *restful.Request, response *restful.Re
 		return
 	}
 
+	err = h.validateMemberClusterConfiguration(cluster.Spec.Connection.KubeConfig)
+	if err != nil {
+		api.HandleBadRequest(response, request, fmt.Errorf("failed to validate member cluster configuration, err: %v", err))
+	}
+
 	response.WriteHeader(http.StatusOK)
 }
 
@@ -348,7 +366,7 @@ func validateKubeSphereAPIServer(ksEndpoint string, kubeconfig []byte) (*version
 		}
 
 		client.Transport = transport
-		path = fmt.Sprintf("%s/api/v1/namespaces/kubesphere-system/services/:ks-apiserver:/proxy/kapis/version", config.Host)
+		path = fmt.Sprintf("%s/api/v1/namespaces/%s/services/:%s:/proxy/kapis/version", config.Host, KubesphereNamespace, KubeSphereApiServer)
 	}
 
 	response, err := client.Get(path)
@@ -362,14 +380,83 @@ func validateKubeSphereAPIServer(ksEndpoint string, kubeconfig []byte) (*version
 	response.Body = ioutil.NopCloser(bytes.NewBuffer(responseBytes))
 
 	if response.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("invalid response: %s , please make sure ks-apiserver.kubesphere-system.svc of member cluster is up and running", responseBody)
+		return nil, fmt.Errorf("invalid response: %s , please make sure %s.%s.svc of member cluster is up and running", KubeSphereApiServer, KubesphereNamespace, responseBody)
 	}
 
 	ver := version.Info{}
 	err = json.NewDecoder(response.Body).Decode(&ver)
 	if err != nil {
-		return nil, fmt.Errorf("invalid response: %s , please make sure ks-apiserver.kubesphere-system.svc of member cluster is up and running", responseBody)
+		return nil, fmt.Errorf("invalid response: %s , please make sure %s.%s.svc of member cluster is up and running", KubeSphereApiServer, KubesphereNamespace, responseBody)
 	}
 
 	return &ver, nil
 }
+
+// validateMemberClusterConfiguration compares host and member cluster jwt, if they are not same, it changes member
+// cluster jwt to host's, then restart member cluster ks-apiserver.
+func (h *handler) validateMemberClusterConfiguration(memberKubeconfig []byte) error {
+	hConfig, err := h.getHostClusterConfig()
+	if err != nil {
+		return err
+	}
+
+	mConfig, err := h.getMemberClusterConfig(memberKubeconfig)
+	if err != nil {
+		return err
+	}
+
+	if hConfig.AuthenticationOptions.JwtSecret != mConfig.AuthenticationOptions.JwtSecret {
+		return fmt.Errorf("hostcluster Jwt is not equal to member cluster jwt, please edit the member cluster cluster config")
+	}
+
+	return nil
+}
+
+// getMemberClusterConfig returns KubeSphere running config by the given member cluster kubeconfig
+func (h *handler) getMemberClusterConfig(kubeconfig []byte) (*config.Config, error) {
+	config, err := loadKubeConfigFromBytes(kubeconfig)
+	if err != nil {
+		return nil, err
+	}
+
+	config.Timeout = defaultTimeout
+
+	clientSet, err := kubernetes.NewForConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	memberCm, err := clientSet.CoreV1().ConfigMaps(KubesphereNamespace).Get(context.Background(), KubeSphereConfigName, metav1.GetOptions{})
+	if err != nil {
+		return nil, err
+	}
+
+	return getConfigFromCm(memberCm)
+}
+
+// getHostClusterConfig returns KubeSphere running config from host cluster ConfigMap
+func (h *handler) getHostClusterConfig() (*config.Config, error) {
+	hostCm, err := h.configMapLister.ConfigMaps(KubesphereNamespace).Get(KubeSphereConfigName)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get host cluster %s/configmap/%s, err: %s", KubesphereNamespace, KubeSphereConfigName, err)
+	}
+
+	return getConfigFromCm(hostCm)
+}
+
+// getConfigFromCm returns KubeSphere ruuning config by the given ConfigMap.
+func getConfigFromCm(cm *corev1.ConfigMap) (*config.Config, error) {
+	Config := config.New()
+
+	value, ok := cm.Data["kubesphere.yaml"]
+	if !ok {
+		return nil, fmt.Errorf("failed to get %s/configmap/%s kubesphere.yaml value", KubesphereNamespace, KubeSphereConfigName)
+	}
+
+	err := yaml.Unmarshal([]byte(value), Config)
+	if err != nil {
+		return nil, fmt.Errorf("failed to unmarshal value from %s/configmap/%s. err: %s", KubesphereNamespace, KubeSphereConfigName, err)
+	}
+
+	return Config, nil
+}

pkg/kapis/cluster/v1alpha1/handler_test.go

@@ -18,22 +18,29 @@ package v1alpha1
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
 	"github.com/google/go-cmp/cmp"
+	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/cli-runtime/pkg/printers"
+	k8s "k8s.io/client-go/kubernetes"
 	k8sfake "k8s.io/client-go/kubernetes/fake"
+	"k8s.io/client-go/tools/clientcmd"
+	"sigs.k8s.io/controller-runtime/pkg/envtest"
+
 	"kubesphere.io/kubesphere/pkg/apis/cluster/v1alpha1"
 	"kubesphere.io/kubesphere/pkg/client/clientset/versioned/fake"
 	"kubesphere.io/kubesphere/pkg/informers"
 	"kubesphere.io/kubesphere/pkg/version"
-	"net/http"
-	"net/http/httptest"
-	"net/url"
-	"sigs.k8s.io/controller-runtime/pkg/envtest"
-	"testing"
 )
 
 const (
@@ -79,6 +86,93 @@ var service = &corev1.Service{
 	},
 }
 
+var hostMap = map[string]string{
+	"kubesphere.yaml": `
+monitoring:
+  endpoint: http://prometheus-operated.kubesphere-monitoring-system.svc:9090
+authentication:
+  jwtSecret: sQh3JOqNbmci6Gu94TeV10AY7ipltwjp
+  oauthOptions:
+    accessTokenMaxAge: 0s
+    accessTokenInactivityTimeout: 0s
+`,
+}
+
+var memberMap = map[string]string{
+	"kubesphere.yaml": `
+monitoring:
+  endpoint: http://prometheus-operated.kubesphere-monitoring-system.svc:9090
+authentication:
+  jwtSecret: sQh3JOqNbmci6Gu94TeV10AY7ipltwj
+  oauthOptions:
+    accessTokenMaxAge: 0s
+    accessTokenInactivityTimeout: 0s
+`,
+}
+
+var hostCm = &corev1.ConfigMap{
+	ObjectMeta: metav1.ObjectMeta{
+		Namespace: KubesphereNamespace,
+		Name:      KubeSphereConfigName,
+	},
+	Data: hostMap,
+}
+
+var memberCm = &corev1.ConfigMap{
+	ObjectMeta: metav1.ObjectMeta{
+		Namespace: KubesphereNamespace,
+		Name:      KubeSphereConfigName,
+	},
+	Data: memberMap,
+}
+
+var ksApiserverDeploy = `
+{
+    "apiVersion": "apps/v1",
+    "kind": "Deployment",
+    "metadata": {
+        "labels": {
+            "app": "ks-apiserver",
+            "tier": "backend",
+            "version": "v3.0.0"
+        },
+        "name": "ks-apiserver",
+        "namespace": "kubesphere-system"
+    },
+    "spec": {
+        "replicas": 1,
+        "selector": {
+            "matchLabels": {
+                "app": "ks-apiserver",
+                "tier": "backend",
+                "version": "v3.0.0"
+            }
+        },
+        "template": {
+            "metadata": {
+                "creationTimestamp": null,
+                "labels": {
+                    "app": "ks-apiserver",
+                    "tier": "backend",
+                    "version": "v3.0.0"
+                }
+            },
+            "spec": {
+                "containers": [
+                    {
+                        "command": [
+                            "ks-apiserver",
+                            "--logtostderr=true"
+                        ],
+                        "image": "kubesphere/ks-apiserver:v3.0.0",
+                        "name": "ks-apiserver"
+                    }
+                ]
+            }
+        }
+    }
+}`
+
 var expected = `apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -157,8 +251,8 @@ func TestGeranteAgentDeployment(t *testing.T) {
 	for _, testCase := range testCases {
 
 		t.Run(testCase.description, func(t *testing.T) {
-			h := newHandler(informersFactory.KubernetesSharedInformerFactory().Core().V1().Services().Lister(),
-				informersFactory.KubeSphereSharedInformerFactory().Cluster().V1alpha1().Clusters().Lister(),
+			h := newHandler(informersFactory.KubernetesSharedInformerFactory(),
+				informersFactory.KubeSphereSharedInformerFactory(),
 				proxyService,
 				"",
 				agentImage)
@@ -238,8 +332,8 @@ func TestValidateKubeConfig(t *testing.T) {
 	informersFactory.KubernetesSharedInformerFactory().Core().V1().Services().Informer().GetIndexer().Add(service)
 	informersFactory.KubeSphereSharedInformerFactory().Cluster().V1alpha1().Clusters().Informer().GetIndexer().Add(cluster)
 
-	h := newHandler(informersFactory.KubernetesSharedInformerFactory().Core().V1().Services().Lister(),
-		informersFactory.KubeSphereSharedInformerFactory().Cluster().V1alpha1().Clusters().Lister(),
+	h := newHandler(informersFactory.KubernetesSharedInformerFactory(),
+		informersFactory.KubeSphereSharedInformerFactory(),
 		proxyService,
 		"",
 		agentImage)
@@ -303,3 +397,109 @@ func TestValidateKubeSphereEndpoint(t *testing.T) {
 	}
 
 }
+
+func TestValidateMemberClusterConfiguration(t *testing.T) {
+	k8sclient := k8sfake.NewSimpleClientset(service)
+	ksclient := fake.NewSimpleClientset(cluster)
+
+	informersFactory := informers.NewInformerFactories(k8sclient, ksclient, nil, nil, nil, nil)
+
+	informersFactory.KubernetesSharedInformerFactory().Core().V1().Services().Informer().GetIndexer().Add(service)
+	informersFactory.KubeSphereSharedInformerFactory().Cluster().V1alpha1().Clusters().Informer().GetIndexer().Add(cluster)
+	informersFactory.KubernetesSharedInformerFactory().Core().V1().ConfigMaps().Informer().GetIndexer().Add(hostCm)
+
+	h := newHandler(informersFactory.KubernetesSharedInformerFactory(),
+		informersFactory.KubeSphereSharedInformerFactory(),
+		proxyService,
+		"",
+		agentImage)
+
+	config, err := loadKubeConfigFromBytes([]byte(base64EncodedKubeConfig))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// config.Host is schemaless, we need to add schema manually
+	u, err := url.Parse(fmt.Sprintf("http://%s", config.Host))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// we need to specify apiserver port to match above kubeconfig
+	env := &envtest.Environment{
+		Config: config,
+		ControlPlane: envtest.ControlPlane{
+			APIServer: &envtest.APIServer{
+				Args: envtest.DefaultKubeAPIServerFlags,
+				URL:  u,
+			},
+		},
+	}
+
+	cfg, err := env.Start()
+	if err != nil {
+		t.Log(cfg)
+		t.Fatal(err)
+	}
+
+	defer func() {
+		_ = env.Stop()
+	}()
+
+	addMemberClusterResource(hostCm, t)
+
+	err = h.validateMemberClusterConfiguration([]byte(base64EncodedKubeConfig))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	addMemberClusterResource(memberCm, t)
+	err = h.validateMemberClusterConfiguration([]byte(base64EncodedKubeConfig))
+	if err == nil {
+		t.Fatal()
+	}
+	t.Log(err)
+}
+
+func addMemberClusterResource(targetCm *corev1.ConfigMap, t *testing.T) {
+	con, err := clientcmd.NewClientConfigFromBytes([]byte(base64EncodedKubeConfig))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	cli, err := con.ClientConfig()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	c, err := k8s.NewForConfig(cli)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = c.CoreV1().Namespaces().Create(context.Background(), &corev1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: KubesphereNamespace}}, metav1.CreateOptions{})
+	if err != nil && !errors.IsAlreadyExists(err) {
+		t.Fatal(err)
+	}
+
+	_, err = c.CoreV1().ConfigMaps(KubesphereNamespace).Create(context.Background(), targetCm, metav1.CreateOptions{})
+	if err != nil && errors.IsAlreadyExists(err) {
+		_, err = c.CoreV1().ConfigMaps(KubesphereNamespace).Update(context.Background(), targetCm, metav1.UpdateOptions{})
+		if err != nil {
+			t.Fatal(err)
+		}
+	} else if err != nil {
+		t.Fatal(err)
+	}
+
+	deploy := appsv1.Deployment{}
+	err = json.Unmarshal([]byte(ksApiserverDeploy), &deploy)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = c.AppsV1().Deployments(KubesphereNamespace).Create(context.Background(), &deploy, metav1.CreateOptions{})
+	if err != nil && !errors.IsAlreadyExists(err) {
+		t.Fatal(err)
+	}
+}

pkg/kapis/cluster/v1alpha1/register.go

@@ -17,15 +17,17 @@ limitations under the License.
 package v1alpha1
 
 import (
+	"net/http"
+
 	"github.com/emicklei/go-restful"
 	restfulspec "github.com/emicklei/go-restful-openapi"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	k8sinformers "k8s.io/client-go/informers"
+
 	"kubesphere.io/kubesphere/pkg/api"
 	"kubesphere.io/kubesphere/pkg/apiserver/runtime"
 	"kubesphere.io/kubesphere/pkg/client/informers/externalversions"
 	"kubesphere.io/kubesphere/pkg/constants"
-	"net/http"
 )
 
 const (
@@ -42,7 +44,7 @@ func AddToContainer(container *restful.Container,
 	agentImage string) error {
 
 	webservice := runtime.NewWebService(GroupVersion)
-	h := newHandler(k8sInformers.Core().V1().Services().Lister(), ksInformers.Cluster().V1alpha1().Clusters().Lister(), proxyService, proxyAddress, agentImage)
+	h := newHandler(k8sInformers, ksInformers, proxyService, proxyAddress, agentImage)
 
 	// returns deployment yaml for cluster agent
 	webservice.Route(webservice.GET("/clusters/{cluster}/agent/deployment").