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Merge pull request #58360 from liggitt/csi-node-authorizer
Automatic merge from submit-queue (batch tested with PRs 58488, 58360). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Add get volumeattachment to the node authorizer Fixes #58355 Adds `get volumeattachment` authorization for nodes to the node authorizer when the CSI feature is enabled ```release-note NONE ```
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commit
621f3f3c0a
@ -451,7 +451,7 @@ func BuildGenericConfig(s *options.ServerRunOptions, proxyTransport *http.Transp
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return nil, nil, nil, nil, nil, fmt.Errorf("invalid authentication config: %v", err)
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}
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genericConfig.Authorizer, genericConfig.RuleResolver, err = BuildAuthorizer(s, sharedInformers)
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genericConfig.Authorizer, genericConfig.RuleResolver, err = BuildAuthorizer(s, sharedInformers, versionedInformers)
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if err != nil {
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return nil, nil, nil, nil, nil, fmt.Errorf("invalid authorization config: %v", err)
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}
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@ -554,8 +554,8 @@ func BuildAuthenticator(s *options.ServerRunOptions, storageFactory serverstorag
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}
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// BuildAuthorizer constructs the authorizer
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func BuildAuthorizer(s *options.ServerRunOptions, sharedInformers informers.SharedInformerFactory) (authorizer.Authorizer, authorizer.RuleResolver, error) {
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authorizationConfig := s.Authorization.ToAuthorizationConfig(sharedInformers)
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func BuildAuthorizer(s *options.ServerRunOptions, sharedInformers informers.SharedInformerFactory, versionedInformers clientgoinformers.SharedInformerFactory) (authorizer.Authorizer, authorizer.RuleResolver, error) {
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authorizationConfig := s.Authorization.ToAuthorizationConfig(sharedInformers, versionedInformers)
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return authorizationConfig.New()
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}
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@ -33,6 +33,7 @@ go_library(
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"//vendor/k8s.io/apiserver/pkg/authorization/authorizerfactory:go_default_library",
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"//vendor/k8s.io/apiserver/pkg/authorization/union:go_default_library",
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"//vendor/k8s.io/apiserver/plugin/pkg/authorizer/webhook:go_default_library",
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"//vendor/k8s.io/client-go/informers:go_default_library",
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],
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)
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@ -25,6 +25,7 @@ import (
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"k8s.io/apiserver/pkg/authorization/authorizerfactory"
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"k8s.io/apiserver/pkg/authorization/union"
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"k8s.io/apiserver/plugin/pkg/authorizer/webhook"
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versionedinformers "k8s.io/client-go/informers"
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"k8s.io/kubernetes/pkg/auth/authorizer/abac"
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"k8s.io/kubernetes/pkg/auth/nodeidentifier"
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informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/internalversion"
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@ -51,7 +52,8 @@ type AuthorizationConfig struct {
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// TTL for caching of unauthorized responses from the webhook server.
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WebhookCacheUnauthorizedTTL time.Duration
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InformerFactory informers.SharedInformerFactory
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InformerFactory informers.SharedInformerFactory
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VersionedInformerFactory versionedinformers.SharedInformerFactory
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}
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// New returns the right sort of union of multiple authorizer.Authorizer objects
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@ -71,6 +73,7 @@ func (config AuthorizationConfig) New() (authorizer.Authorizer, authorizer.RuleR
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if authorizerMap[authorizationMode] {
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return nil, nil, fmt.Errorf("Authorization mode %s specified more than once", authorizationMode)
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}
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// Keep cases in sync with constant list above.
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switch authorizationMode {
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case modes.ModeNode:
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@ -79,6 +82,7 @@ func (config AuthorizationConfig) New() (authorizer.Authorizer, authorizer.RuleR
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graph,
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config.InformerFactory.Core().InternalVersion().Pods(),
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config.InformerFactory.Core().InternalVersion().PersistentVolumes(),
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config.VersionedInformerFactory.Storage().V1alpha1().VolumeAttachments(),
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)
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nodeAuthorizer := node.NewAuthorizer(graph, nodeidentifier.NewDefaultNodeIdentifier(), bootstrappolicy.NodeRules())
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authorizers = append(authorizers, nodeAuthorizer)
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@ -33,6 +33,7 @@ go_library(
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"//vendor/k8s.io/apiserver/pkg/server:go_default_library",
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"//vendor/k8s.io/apiserver/pkg/server/options:go_default_library",
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"//vendor/k8s.io/apiserver/pkg/util/flag:go_default_library",
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"//vendor/k8s.io/client-go/informers:go_default_library",
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],
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)
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@ -22,6 +22,7 @@ import (
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"github.com/spf13/pflag"
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versionedinformers "k8s.io/client-go/informers"
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informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/internalversion"
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"k8s.io/kubernetes/pkg/kubeapiserver/authorizer"
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authzmodes "k8s.io/kubernetes/pkg/kubeapiserver/authorizer/modes"
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@ -83,7 +84,7 @@ func (s *BuiltInAuthorizationOptions) Modes() []string {
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return modes
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}
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func (s *BuiltInAuthorizationOptions) ToAuthorizationConfig(informerFactory informers.SharedInformerFactory) authorizer.AuthorizationConfig {
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func (s *BuiltInAuthorizationOptions) ToAuthorizationConfig(informerFactory informers.SharedInformerFactory, versionedInformerFactory versionedinformers.SharedInformerFactory) authorizer.AuthorizationConfig {
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return authorizer.AuthorizationConfig{
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AuthorizationModes: s.Modes(),
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PolicyFile: s.PolicyFile,
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@ -91,5 +92,6 @@ func (s *BuiltInAuthorizationOptions) ToAuthorizationConfig(informerFactory info
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WebhookCacheAuthorizedTTL: s.WebhookCacheAuthorizedTTL,
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WebhookCacheUnauthorizedTTL: s.WebhookCacheUnauthorizedTTL,
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InformerFactory: informerFactory,
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VersionedInformerFactory: versionedInformerFactory,
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}
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}
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@ -14,10 +14,13 @@ go_test(
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deps = [
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"//pkg/apis/core:go_default_library",
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"//pkg/auth/nodeidentifier:go_default_library",
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"//pkg/features:go_default_library",
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"//plugin/pkg/auth/authorizer/rbac/bootstrappolicy:go_default_library",
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"//vendor/k8s.io/api/storage/v1alpha1:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
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"//vendor/k8s.io/apiserver/pkg/authentication/user:go_default_library",
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"//vendor/k8s.io/apiserver/pkg/authorization/authorizer:go_default_library",
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"//vendor/k8s.io/apiserver/pkg/util/feature:go_default_library",
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],
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)
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@ -34,6 +37,7 @@ go_library(
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"//pkg/api/pod:go_default_library",
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"//pkg/apis/core:go_default_library",
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"//pkg/apis/rbac:go_default_library",
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"//pkg/apis/storage:go_default_library",
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"//pkg/auth/nodeidentifier:go_default_library",
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"//pkg/client/informers/informers_generated/internalversion/core/internalversion:go_default_library",
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"//pkg/features:go_default_library",
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@ -42,9 +46,11 @@ go_library(
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"//third_party/forked/gonum/graph/simple:go_default_library",
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"//third_party/forked/gonum/graph/traverse:go_default_library",
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"//vendor/github.com/golang/glog:go_default_library",
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"//vendor/k8s.io/api/storage/v1alpha1:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
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"//vendor/k8s.io/apiserver/pkg/authorization/authorizer:go_default_library",
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"//vendor/k8s.io/apiserver/pkg/util/feature:go_default_library",
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"//vendor/k8s.io/client-go/informers/storage/v1alpha1:go_default_library",
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"//vendor/k8s.io/client-go/tools/cache:go_default_library",
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],
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)
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@ -106,6 +106,7 @@ const (
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pvcVertexType
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pvVertexType
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secretVertexType
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vaVertexType
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)
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var vertexTypes = map[vertexType]string{
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@ -115,6 +116,7 @@ var vertexTypes = map[vertexType]string{
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pvcVertexType: "pvc",
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pvVertexType: "pv",
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secretVertexType: "secret",
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vaVertexType: "volumeattachment",
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}
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// must be called under a write lock
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@ -263,3 +265,26 @@ func (g *Graph) DeletePV(name string) {
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defer g.lock.Unlock()
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g.deleteVertex_locked(pvVertexType, "", name)
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}
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// AddVolumeAttachment sets up edges for the following relationships:
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//
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// volume attachment -> node
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func (g *Graph) AddVolumeAttachment(attachmentName, nodeName string) {
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g.lock.Lock()
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defer g.lock.Unlock()
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// clear existing edges
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g.deleteVertex_locked(vaVertexType, "", attachmentName)
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// if we have a node, establish new edges
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if len(nodeName) > 0 {
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vaVertex := g.getOrCreateVertex_locked(vaVertexType, "", attachmentName)
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nodeVertex := g.getOrCreateVertex_locked(nodeVertexType, "", nodeName)
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g.graph.SetEdge(newDestinationEdge(vaVertex, nodeVertex, nodeVertex))
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}
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}
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func (g *Graph) DeleteVolumeAttachment(name string) {
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g.lock.Lock()
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defer g.lock.Unlock()
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g.deleteVertex_locked(vaVertexType, "", name)
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}
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@ -19,16 +19,25 @@ package node
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import (
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"github.com/golang/glog"
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storagev1alpha1 "k8s.io/api/storage/v1alpha1"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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storageinformers "k8s.io/client-go/informers/storage/v1alpha1"
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"k8s.io/client-go/tools/cache"
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api "k8s.io/kubernetes/pkg/apis/core"
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coreinformers "k8s.io/kubernetes/pkg/client/informers/informers_generated/internalversion/core/internalversion"
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"k8s.io/kubernetes/pkg/features"
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)
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type graphPopulator struct {
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graph *Graph
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}
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func AddGraphEventHandlers(graph *Graph, pods coreinformers.PodInformer, pvs coreinformers.PersistentVolumeInformer) {
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func AddGraphEventHandlers(
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graph *Graph,
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pods coreinformers.PodInformer,
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pvs coreinformers.PersistentVolumeInformer,
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attachments storageinformers.VolumeAttachmentInformer,
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) {
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g := &graphPopulator{
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graph: graph,
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}
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@ -44,6 +53,14 @@ func AddGraphEventHandlers(graph *Graph, pods coreinformers.PodInformer, pvs cor
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UpdateFunc: g.updatePV,
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DeleteFunc: g.deletePV,
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})
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if utilfeature.DefaultFeatureGate.Enabled(features.CSIPersistentVolume) {
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attachments.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
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AddFunc: g.addVolumeAttachment,
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UpdateFunc: g.updateVolumeAttachment,
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DeleteFunc: g.deleteVolumeAttachment,
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})
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}
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}
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func (g *graphPopulator) addPod(obj interface{}) {
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@ -106,3 +123,31 @@ func (g *graphPopulator) deletePV(obj interface{}) {
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}
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g.graph.DeletePV(pv.Name)
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}
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func (g *graphPopulator) addVolumeAttachment(obj interface{}) {
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g.updateVolumeAttachment(nil, obj)
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}
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func (g *graphPopulator) updateVolumeAttachment(oldObj, obj interface{}) {
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attachment := obj.(*storagev1alpha1.VolumeAttachment)
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if oldObj != nil {
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// skip add if node name is identical
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oldAttachment := oldObj.(*storagev1alpha1.VolumeAttachment)
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if oldAttachment.Spec.NodeName == attachment.Spec.NodeName {
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return
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}
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}
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g.graph.AddVolumeAttachment(attachment.Name, attachment.Spec.NodeName)
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}
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func (g *graphPopulator) deleteVolumeAttachment(obj interface{}) {
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if tombstone, ok := obj.(cache.DeletedFinalStateUnknown); ok {
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obj = tombstone.Obj
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}
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attachment, ok := obj.(*api.PersistentVolume)
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if !ok {
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glog.Infof("unexpected type %T", obj)
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return
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}
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g.graph.DeleteVolumeAttachment(attachment.Name)
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}
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@ -26,6 +26,7 @@ import (
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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api "k8s.io/kubernetes/pkg/apis/core"
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rbacapi "k8s.io/kubernetes/pkg/apis/rbac"
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storageapi "k8s.io/kubernetes/pkg/apis/storage"
|
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"k8s.io/kubernetes/pkg/auth/nodeidentifier"
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"k8s.io/kubernetes/pkg/features"
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"k8s.io/kubernetes/plugin/pkg/auth/authorizer/rbac"
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@ -48,6 +49,9 @@ type NodeAuthorizer struct {
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graph *Graph
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identifier nodeidentifier.NodeIdentifier
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nodeRules []rbacapi.PolicyRule
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|
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// allows overriding for testing
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features utilfeature.FeatureGate
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}
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|
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// NewAuthorizer returns a new node authorizer
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@ -56,6 +60,7 @@ func NewAuthorizer(graph *Graph, identifier nodeidentifier.NodeIdentifier, rules
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graph: graph,
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identifier: identifier,
|
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nodeRules: rules,
|
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features: utilfeature.DefaultFeatureGate,
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}
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}
|
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|
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@ -64,6 +69,7 @@ var (
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secretResource = api.Resource("secrets")
|
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pvcResource = api.Resource("persistentvolumeclaims")
|
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pvResource = api.Resource("persistentvolumes")
|
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vaResource = storageapi.Resource("volumeattachments")
|
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)
|
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|
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func (r *NodeAuthorizer) Authorize(attrs authorizer.Attributes) (authorizer.Decision, string, error) {
|
||||
@ -87,7 +93,7 @@ func (r *NodeAuthorizer) Authorize(attrs authorizer.Attributes) (authorizer.Deci
|
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case configMapResource:
|
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return r.authorizeGet(nodeName, configMapVertexType, attrs)
|
||||
case pvcResource:
|
||||
if utilfeature.DefaultFeatureGate.Enabled(features.ExpandPersistentVolumes) {
|
||||
if r.features.Enabled(features.ExpandPersistentVolumes) {
|
||||
if attrs.GetSubresource() == "status" {
|
||||
return r.authorizeStatusUpdate(nodeName, pvcVertexType, attrs)
|
||||
}
|
||||
@ -95,6 +101,11 @@ func (r *NodeAuthorizer) Authorize(attrs authorizer.Attributes) (authorizer.Deci
|
||||
return r.authorizeGet(nodeName, pvcVertexType, attrs)
|
||||
case pvResource:
|
||||
return r.authorizeGet(nodeName, pvVertexType, attrs)
|
||||
case vaResource:
|
||||
if r.features.Enabled(features.CSIPersistentVolume) {
|
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return r.authorizeGet(nodeName, vaVertexType, attrs)
|
||||
}
|
||||
return authorizer.DecisionNoOpinion, fmt.Sprintf("disabled by feature gate %s", features.CSIPersistentVolume), nil
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -24,14 +24,31 @@ import (
|
||||
|
||||
"os"
|
||||
|
||||
storagev1alpha1 "k8s.io/api/storage/v1alpha1"
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
"k8s.io/apiserver/pkg/authentication/user"
|
||||
"k8s.io/apiserver/pkg/authorization/authorizer"
|
||||
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
||||
api "k8s.io/kubernetes/pkg/apis/core"
|
||||
"k8s.io/kubernetes/pkg/auth/nodeidentifier"
|
||||
"k8s.io/kubernetes/pkg/features"
|
||||
"k8s.io/kubernetes/plugin/pkg/auth/authorizer/rbac/bootstrappolicy"
|
||||
)
|
||||
|
||||
var (
|
||||
csiEnabledFeature = utilfeature.NewFeatureGate()
|
||||
csiDisabledFeature = utilfeature.NewFeatureGate()
|
||||
)
|
||||
|
||||
func init() {
|
||||
if err := csiEnabledFeature.Add(map[utilfeature.Feature]utilfeature.FeatureSpec{features.CSIPersistentVolume: {Default: true}}); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
if err := csiDisabledFeature.Add(map[utilfeature.Feature]utilfeature.FeatureSpec{features.CSIPersistentVolume: {Default: false}}); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestAuthorizer(t *testing.T) {
|
||||
g := NewGraph()
|
||||
|
||||
@ -39,6 +56,7 @@ func TestAuthorizer(t *testing.T) {
|
||||
nodes: 2,
|
||||
namespaces: 2,
|
||||
podsPerNode: 2,
|
||||
attachmentsPerNode: 1,
|
||||
sharedConfigMapsPerPod: 0,
|
||||
uniqueConfigMapsPerPod: 1,
|
||||
sharedSecretsPerPod: 1,
|
||||
@ -46,18 +64,19 @@ func TestAuthorizer(t *testing.T) {
|
||||
sharedPVCsPerPod: 0,
|
||||
uniquePVCsPerPod: 1,
|
||||
}
|
||||
pods, pvs := generate(opts)
|
||||
populate(g, pods, pvs)
|
||||
pods, pvs, attachments := generate(opts)
|
||||
populate(g, pods, pvs, attachments)
|
||||
|
||||
identifier := nodeidentifier.NewDefaultNodeIdentifier()
|
||||
authz := NewAuthorizer(g, identifier, bootstrappolicy.NodeRules())
|
||||
authz := NewAuthorizer(g, identifier, bootstrappolicy.NodeRules()).(*NodeAuthorizer)
|
||||
|
||||
node0 := &user.DefaultInfo{Name: "system:node:node0", Groups: []string{"system:nodes"}}
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
attrs authorizer.AttributesRecord
|
||||
expect authorizer.Decision
|
||||
name string
|
||||
attrs authorizer.AttributesRecord
|
||||
expect authorizer.Decision
|
||||
features utilfeature.FeatureGate
|
||||
}{
|
||||
{
|
||||
name: "allowed configmap",
|
||||
@ -115,10 +134,33 @@ func TestAuthorizer(t *testing.T) {
|
||||
attrs: authorizer.AttributesRecord{User: node0, ResourceRequest: true, Verb: "get", Resource: "persistentvolumes", Name: "pv0-pod0-node1-ns0", Namespace: ""},
|
||||
expect: authorizer.DecisionNoOpinion,
|
||||
},
|
||||
{
|
||||
name: "disallowed attachment - no relationship",
|
||||
attrs: authorizer.AttributesRecord{User: node0, ResourceRequest: true, Verb: "get", Resource: "volumeattachments", APIGroup: "storage.k8s.io", Name: "attachment0-node1"},
|
||||
features: csiEnabledFeature,
|
||||
expect: authorizer.DecisionNoOpinion,
|
||||
},
|
||||
{
|
||||
name: "disallowed attachment - feature disabled",
|
||||
attrs: authorizer.AttributesRecord{User: node0, ResourceRequest: true, Verb: "get", Resource: "volumeattachments", APIGroup: "storage.k8s.io", Name: "attachment0-node0"},
|
||||
features: csiDisabledFeature,
|
||||
expect: authorizer.DecisionNoOpinion,
|
||||
},
|
||||
{
|
||||
name: "allowed attachment - feature enabled",
|
||||
attrs: authorizer.AttributesRecord{User: node0, ResourceRequest: true, Verb: "get", Resource: "volumeattachments", APIGroup: "storage.k8s.io", Name: "attachment0-node0"},
|
||||
features: csiEnabledFeature,
|
||||
expect: authorizer.DecisionAllow,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range tests {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
if tc.features == nil {
|
||||
authz.features = utilfeature.DefaultFeatureGate
|
||||
} else {
|
||||
authz.features = tc.features
|
||||
}
|
||||
decision, _, _ := authz.Authorize(tc.attrs)
|
||||
if decision != tc.expect {
|
||||
t.Errorf("expected %v, got %v", tc.expect, decision)
|
||||
@ -204,6 +246,8 @@ type sampleDataOpts struct {
|
||||
|
||||
podsPerNode int
|
||||
|
||||
attachmentsPerNode int
|
||||
|
||||
sharedConfigMapsPerPod int
|
||||
sharedSecretsPerPod int
|
||||
sharedPVCsPerPod int
|
||||
@ -218,6 +262,7 @@ func BenchmarkPopulationAllocation(b *testing.B) {
|
||||
nodes: 500,
|
||||
namespaces: 200,
|
||||
podsPerNode: 200,
|
||||
attachmentsPerNode: 20,
|
||||
sharedConfigMapsPerPod: 0,
|
||||
uniqueConfigMapsPerPod: 1,
|
||||
sharedSecretsPerPod: 1,
|
||||
@ -226,12 +271,12 @@ func BenchmarkPopulationAllocation(b *testing.B) {
|
||||
uniquePVCsPerPod: 1,
|
||||
}
|
||||
|
||||
pods, pvs := generate(opts)
|
||||
pods, pvs, attachments := generate(opts)
|
||||
b.ResetTimer()
|
||||
|
||||
for i := 0; i < b.N; i++ {
|
||||
g := NewGraph()
|
||||
populate(g, pods, pvs)
|
||||
populate(g, pods, pvs, attachments)
|
||||
}
|
||||
}
|
||||
|
||||
@ -248,6 +293,7 @@ func BenchmarkPopulationRetention(b *testing.B) {
|
||||
nodes: 500,
|
||||
namespaces: 200,
|
||||
podsPerNode: 200,
|
||||
attachmentsPerNode: 20,
|
||||
sharedConfigMapsPerPod: 0,
|
||||
uniqueConfigMapsPerPod: 1,
|
||||
sharedSecretsPerPod: 1,
|
||||
@ -256,14 +302,14 @@ func BenchmarkPopulationRetention(b *testing.B) {
|
||||
uniquePVCsPerPod: 1,
|
||||
}
|
||||
|
||||
pods, pvs := generate(opts)
|
||||
pods, pvs, attachments := generate(opts)
|
||||
// Garbage collect before the first iteration
|
||||
runtime.GC()
|
||||
b.ResetTimer()
|
||||
|
||||
for i := 0; i < b.N; i++ {
|
||||
g := NewGraph()
|
||||
populate(g, pods, pvs)
|
||||
populate(g, pods, pvs, attachments)
|
||||
|
||||
if i == 0 {
|
||||
f, _ := os.Create("BenchmarkPopulationRetention.profile")
|
||||
@ -283,6 +329,7 @@ func BenchmarkAuthorization(b *testing.B) {
|
||||
nodes: 500,
|
||||
namespaces: 200,
|
||||
podsPerNode: 200,
|
||||
attachmentsPerNode: 20,
|
||||
sharedConfigMapsPerPod: 0,
|
||||
uniqueConfigMapsPerPod: 1,
|
||||
sharedSecretsPerPod: 1,
|
||||
@ -290,18 +337,19 @@ func BenchmarkAuthorization(b *testing.B) {
|
||||
sharedPVCsPerPod: 0,
|
||||
uniquePVCsPerPod: 1,
|
||||
}
|
||||
pods, pvs := generate(opts)
|
||||
populate(g, pods, pvs)
|
||||
pods, pvs, attachments := generate(opts)
|
||||
populate(g, pods, pvs, attachments)
|
||||
|
||||
identifier := nodeidentifier.NewDefaultNodeIdentifier()
|
||||
authz := NewAuthorizer(g, identifier, bootstrappolicy.NodeRules())
|
||||
authz := NewAuthorizer(g, identifier, bootstrappolicy.NodeRules()).(*NodeAuthorizer)
|
||||
|
||||
node0 := &user.DefaultInfo{Name: "system:node:node0", Groups: []string{"system:nodes"}}
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
attrs authorizer.AttributesRecord
|
||||
expect authorizer.Decision
|
||||
name string
|
||||
attrs authorizer.AttributesRecord
|
||||
expect authorizer.Decision
|
||||
features utilfeature.FeatureGate
|
||||
}{
|
||||
{
|
||||
name: "allowed configmap",
|
||||
@ -343,10 +391,33 @@ func BenchmarkAuthorization(b *testing.B) {
|
||||
attrs: authorizer.AttributesRecord{User: node0, ResourceRequest: true, Verb: "get", Resource: "persistentvolumes", Name: "pv0-pod0-node1-ns0", Namespace: ""},
|
||||
expect: authorizer.DecisionNoOpinion,
|
||||
},
|
||||
{
|
||||
name: "disallowed attachment - no relationship",
|
||||
attrs: authorizer.AttributesRecord{User: node0, ResourceRequest: true, Verb: "get", Resource: "volumeattachments", APIGroup: "storage.k8s.io", Name: "attachment0-node1"},
|
||||
features: csiEnabledFeature,
|
||||
expect: authorizer.DecisionNoOpinion,
|
||||
},
|
||||
{
|
||||
name: "disallowed attachment - feature disabled",
|
||||
attrs: authorizer.AttributesRecord{User: node0, ResourceRequest: true, Verb: "get", Resource: "volumeattachments", APIGroup: "storage.k8s.io", Name: "attachment0-node0"},
|
||||
features: csiDisabledFeature,
|
||||
expect: authorizer.DecisionNoOpinion,
|
||||
},
|
||||
{
|
||||
name: "allowed attachment - feature enabled",
|
||||
attrs: authorizer.AttributesRecord{User: node0, ResourceRequest: true, Verb: "get", Resource: "volumeattachments", APIGroup: "storage.k8s.io", Name: "attachment0-node0"},
|
||||
features: csiEnabledFeature,
|
||||
expect: authorizer.DecisionAllow,
|
||||
},
|
||||
}
|
||||
|
||||
b.ResetTimer()
|
||||
for _, tc := range tests {
|
||||
if tc.features == nil {
|
||||
authz.features = utilfeature.DefaultFeatureGate
|
||||
} else {
|
||||
authz.features = tc.features
|
||||
}
|
||||
b.Run(tc.name, func(b *testing.B) {
|
||||
for i := 0; i < b.N; i++ {
|
||||
decision, _, _ := authz.Authorize(tc.attrs)
|
||||
@ -358,7 +429,7 @@ func BenchmarkAuthorization(b *testing.B) {
|
||||
}
|
||||
}
|
||||
|
||||
func populate(graph *Graph, pods []*api.Pod, pvs []*api.PersistentVolume) {
|
||||
func populate(graph *Graph, pods []*api.Pod, pvs []*api.PersistentVolume, attachments []*storagev1alpha1.VolumeAttachment) {
|
||||
p := &graphPopulator{}
|
||||
p.graph = graph
|
||||
for _, pod := range pods {
|
||||
@ -367,15 +438,19 @@ func populate(graph *Graph, pods []*api.Pod, pvs []*api.PersistentVolume) {
|
||||
for _, pv := range pvs {
|
||||
p.addPV(pv)
|
||||
}
|
||||
for _, attachment := range attachments {
|
||||
p.addVolumeAttachment(attachment)
|
||||
}
|
||||
}
|
||||
|
||||
// generate creates sample pods and persistent volumes based on the provided options.
|
||||
// the secret/configmap/pvc/node references in the pod and pv objects are named to indicate the connections between the objects.
|
||||
// for example, secret0-pod0-node0 is a secret referenced by pod0 which is bound to node0.
|
||||
// when populated into the graph, the node authorizer should allow node0 to access that secret, but not node1.
|
||||
func generate(opts sampleDataOpts) ([]*api.Pod, []*api.PersistentVolume) {
|
||||
func generate(opts sampleDataOpts) ([]*api.Pod, []*api.PersistentVolume, []*storagev1alpha1.VolumeAttachment) {
|
||||
pods := make([]*api.Pod, 0, opts.nodes*opts.podsPerNode)
|
||||
pvs := make([]*api.PersistentVolume, 0, (opts.nodes*opts.podsPerNode*opts.uniquePVCsPerPod)+(opts.sharedPVCsPerPod*opts.namespaces))
|
||||
attachments := make([]*storagev1alpha1.VolumeAttachment, 0, opts.nodes*opts.attachmentsPerNode)
|
||||
|
||||
for n := 0; n < opts.nodes; n++ {
|
||||
nodeName := fmt.Sprintf("node%d", n)
|
||||
@ -432,6 +507,12 @@ func generate(opts sampleDataOpts) ([]*api.Pod, []*api.PersistentVolume) {
|
||||
|
||||
pods = append(pods, pod)
|
||||
}
|
||||
for a := 0; a < opts.attachmentsPerNode; a++ {
|
||||
attachment := &storagev1alpha1.VolumeAttachment{}
|
||||
attachment.Name = fmt.Sprintf("attachment%d-%s", a, nodeName)
|
||||
attachment.Spec.NodeName = nodeName
|
||||
attachments = append(attachments, attachment)
|
||||
}
|
||||
}
|
||||
return pods, pvs
|
||||
return pods, pvs, attachments
|
||||
}
|
||||
|
||||
@ -51,6 +51,7 @@ go_test(
|
||||
"//test/integration/framework:go_default_library",
|
||||
"//vendor/github.com/golang/glog:go_default_library",
|
||||
"//vendor/k8s.io/api/authentication/v1beta1:go_default_library",
|
||||
"//vendor/k8s.io/api/storage/v1alpha1:go_default_library",
|
||||
"//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
|
||||
"//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
|
||||
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
|
||||
@ -68,10 +69,13 @@ go_test(
|
||||
"//vendor/k8s.io/apiserver/pkg/authorization/authorizer:go_default_library",
|
||||
"//vendor/k8s.io/apiserver/pkg/authorization/authorizerfactory:go_default_library",
|
||||
"//vendor/k8s.io/apiserver/pkg/registry/generic:go_default_library",
|
||||
"//vendor/k8s.io/apiserver/pkg/server/storage:go_default_library",
|
||||
"//vendor/k8s.io/apiserver/pkg/util/feature:go_default_library",
|
||||
"//vendor/k8s.io/apiserver/pkg/util/feature/testing:go_default_library",
|
||||
"//vendor/k8s.io/apiserver/plugin/pkg/authenticator/token/tokentest:go_default_library",
|
||||
"//vendor/k8s.io/apiserver/plugin/pkg/authenticator/token/webhook:go_default_library",
|
||||
"//vendor/k8s.io/client-go/informers:go_default_library",
|
||||
"//vendor/k8s.io/client-go/kubernetes:go_default_library",
|
||||
"//vendor/k8s.io/client-go/rest:go_default_library",
|
||||
"//vendor/k8s.io/client-go/tools/bootstrap/token/api:go_default_library",
|
||||
"//vendor/k8s.io/client-go/tools/clientcmd/api/v1:go_default_library",
|
||||
|
||||
@ -23,6 +23,7 @@ import (
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
storagev1alpha1 "k8s.io/api/storage/v1alpha1"
|
||||
"k8s.io/apimachinery/pkg/api/errors"
|
||||
"k8s.io/apimachinery/pkg/api/resource"
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
@ -31,8 +32,11 @@ import (
|
||||
"k8s.io/apiserver/pkg/authentication/request/bearertoken"
|
||||
"k8s.io/apiserver/pkg/authentication/token/tokenfile"
|
||||
"k8s.io/apiserver/pkg/authentication/user"
|
||||
serverstorage "k8s.io/apiserver/pkg/server/storage"
|
||||
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
||||
utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
|
||||
versionedinformers "k8s.io/client-go/informers"
|
||||
externalclientset "k8s.io/client-go/kubernetes"
|
||||
restclient "k8s.io/client-go/rest"
|
||||
"k8s.io/kubernetes/pkg/api/legacyscheme"
|
||||
api "k8s.io/kubernetes/pkg/apis/core"
|
||||
@ -71,13 +75,18 @@ func TestNodeAuthorizer(t *testing.T) {
|
||||
|
||||
// Build client config, clientset, and informers
|
||||
clientConfig := &restclient.Config{Host: apiServer.URL, ContentConfig: restclient.ContentConfig{NegotiatedSerializer: legacyscheme.Codecs}}
|
||||
superuserClient := clientsetForToken(tokenMaster, clientConfig)
|
||||
superuserClient, superuserClientExternal := clientsetForToken(tokenMaster, clientConfig)
|
||||
informerFactory := informers.NewSharedInformerFactory(superuserClient, time.Minute)
|
||||
versionedInformerFactory := versionedinformers.NewSharedInformerFactory(superuserClientExternal, time.Minute)
|
||||
|
||||
// Enabled CSIPersistentVolume feature at startup so volumeattachments get watched
|
||||
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.CSIPersistentVolume, true)()
|
||||
|
||||
// Set up Node+RBAC authorizer
|
||||
authorizerConfig := &authorizer.AuthorizationConfig{
|
||||
AuthorizationModes: []string{"Node", "RBAC"},
|
||||
InformerFactory: informerFactory,
|
||||
AuthorizationModes: []string{"Node", "RBAC"},
|
||||
InformerFactory: informerFactory,
|
||||
VersionedInformerFactory: versionedInformerFactory,
|
||||
}
|
||||
nodeRBACAuthorizer, _, err := authorizerConfig.New()
|
||||
if err != nil {
|
||||
@ -94,9 +103,12 @@ func TestNodeAuthorizer(t *testing.T) {
|
||||
// Start the server
|
||||
masterConfig := framework.NewIntegrationTestMasterConfig()
|
||||
masterConfig.GenericConfig.Authenticator = authenticator
|
||||
|
||||
masterConfig.GenericConfig.Authorizer = nodeRBACAuthorizer
|
||||
masterConfig.GenericConfig.AdmissionControl = nodeRestrictionAdmission
|
||||
|
||||
// enable testing volume attachments
|
||||
masterConfig.ExtraConfig.APIResourceConfigSource.(*serverstorage.ResourceConfig).EnableVersions(storagev1alpha1.SchemeGroupVersion)
|
||||
|
||||
_, _, closeFn := framework.RunAMasterUsingServer(masterConfig, apiServer, h)
|
||||
defer closeFn()
|
||||
|
||||
@ -104,6 +116,7 @@ func TestNodeAuthorizer(t *testing.T) {
|
||||
stopCh := make(chan struct{})
|
||||
defer close(stopCh)
|
||||
informerFactory.Start(stopCh)
|
||||
versionedInformerFactory.Start(stopCh)
|
||||
|
||||
// Wait for a healthy server
|
||||
for {
|
||||
@ -126,6 +139,17 @@ func TestNodeAuthorizer(t *testing.T) {
|
||||
if _, err := superuserClient.Core().ConfigMaps("ns").Create(&api.ConfigMap{ObjectMeta: metav1.ObjectMeta{Name: "myconfigmap"}}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
pvName := "mypv"
|
||||
if _, err := superuserClientExternal.StorageV1alpha1().VolumeAttachments().Create(&storagev1alpha1.VolumeAttachment{
|
||||
ObjectMeta: metav1.ObjectMeta{Name: "myattachment"},
|
||||
Spec: storagev1alpha1.VolumeAttachmentSpec{
|
||||
Attacher: "foo",
|
||||
Source: storagev1alpha1.VolumeAttachmentSource{PersistentVolumeName: &pvName},
|
||||
NodeName: "node2",
|
||||
},
|
||||
}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if _, err := superuserClient.Core().PersistentVolumeClaims("ns").Create(&api.PersistentVolumeClaim{
|
||||
ObjectMeta: metav1.ObjectMeta{Name: "mypvc"},
|
||||
Spec: api.PersistentVolumeClaimSpec{
|
||||
@ -178,6 +202,12 @@ func TestNodeAuthorizer(t *testing.T) {
|
||||
return err
|
||||
}
|
||||
}
|
||||
getVolumeAttachment := func(client externalclientset.Interface) func() error {
|
||||
return func() error {
|
||||
_, err := client.StorageV1alpha1().VolumeAttachments().Get("myattachment", metav1.GetOptions{})
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
createNode2NormalPod := func(client clientset.Interface) func() error {
|
||||
return func() error {
|
||||
@ -303,9 +333,9 @@ func TestNodeAuthorizer(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
nodeanonClient := clientsetForToken(tokenNodeUnknown, clientConfig)
|
||||
node1Client := clientsetForToken(tokenNode1, clientConfig)
|
||||
node2Client := clientsetForToken(tokenNode2, clientConfig)
|
||||
nodeanonClient, _ := clientsetForToken(tokenNodeUnknown, clientConfig)
|
||||
node1Client, node1ClientExternal := clientsetForToken(tokenNode1, clientConfig)
|
||||
node2Client, node2ClientExternal := clientsetForToken(tokenNode2, clientConfig)
|
||||
|
||||
// all node requests from node1 and unknown node fail
|
||||
expectForbidden(t, getSecret(nodeanonClient))
|
||||
@ -402,32 +432,40 @@ func TestNodeAuthorizer(t *testing.T) {
|
||||
|
||||
// re-create a pod as an admin to add object references
|
||||
expectAllowed(t, createNode2NormalPod(superuserClient))
|
||||
// With ExpandPersistentVolumes feature disabled
|
||||
|
||||
// ExpandPersistentVolumes feature disabled
|
||||
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandPersistentVolumes, false)()
|
||||
// node->pvc relationship not established
|
||||
expectForbidden(t, updatePVCCapacity(node1Client))
|
||||
// node->pvc relationship established but feature is disabled
|
||||
expectForbidden(t, updatePVCCapacity(node2Client))
|
||||
|
||||
//Enabled ExpandPersistentVolumes feature
|
||||
// ExpandPersistentVolumes feature enabled
|
||||
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandPersistentVolumes, true)()
|
||||
// Node->pvc relationship not established
|
||||
expectForbidden(t, updatePVCCapacity(node1Client))
|
||||
// node->pvc relationship established and feature is enabled
|
||||
expectAllowed(t, updatePVCCapacity(node2Client))
|
||||
// node->pvc relationship established but updating phase
|
||||
expectForbidden(t, updatePVCPhase(node2Client))
|
||||
|
||||
// Disabled CSIPersistentVolume feature
|
||||
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.CSIPersistentVolume, false)()
|
||||
expectForbidden(t, getVolumeAttachment(node1ClientExternal))
|
||||
expectForbidden(t, getVolumeAttachment(node2ClientExternal))
|
||||
// Enabled CSIPersistentVolume feature
|
||||
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.CSIPersistentVolume, true)()
|
||||
expectForbidden(t, getVolumeAttachment(node1ClientExternal))
|
||||
expectAllowed(t, getVolumeAttachment(node2ClientExternal))
|
||||
}
|
||||
|
||||
// expect executes a function a set number of times until it either returns the
|
||||
// expected error or executes too many times. It returns if the retries timed
|
||||
// out and the last error returned by the method.
|
||||
func expect(f func() error, wantErr func(error) bool) (timeout bool, lastErr error) {
|
||||
func expect(t *testing.T, f func() error, wantErr func(error) bool) (timeout bool, lastErr error) {
|
||||
t.Helper()
|
||||
err := wait.PollImmediate(time.Second, 30*time.Second, func() (bool, error) {
|
||||
t.Helper()
|
||||
lastErr = f()
|
||||
if wantErr(lastErr) {
|
||||
return true, nil
|
||||
}
|
||||
t.Logf("unexpected response, will retry: %v", lastErr)
|
||||
return false, nil
|
||||
})
|
||||
return err == nil, lastErr
|
||||
@ -435,21 +473,21 @@ func expect(f func() error, wantErr func(error) bool) (timeout bool, lastErr err
|
||||
|
||||
func expectForbidden(t *testing.T, f func() error) {
|
||||
t.Helper()
|
||||
if ok, err := expect(f, errors.IsForbidden); !ok {
|
||||
if ok, err := expect(t, f, errors.IsForbidden); !ok {
|
||||
t.Errorf("Expected forbidden error, got %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func expectNotFound(t *testing.T, f func() error) {
|
||||
t.Helper()
|
||||
if ok, err := expect(f, errors.IsNotFound); !ok {
|
||||
if ok, err := expect(t, f, errors.IsNotFound); !ok {
|
||||
t.Errorf("Expected notfound error, got %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func expectAllowed(t *testing.T, f func() error) {
|
||||
t.Helper()
|
||||
if ok, err := expect(f, func(e error) bool { return e == nil }); !ok {
|
||||
if ok, err := expect(t, f, func(e error) bool { return e == nil }); !ok {
|
||||
t.Errorf("Expected no error, got %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
@ -36,6 +36,7 @@ import (
|
||||
"k8s.io/apiserver/pkg/authentication/user"
|
||||
"k8s.io/apiserver/pkg/authorization/authorizer"
|
||||
"k8s.io/apiserver/pkg/registry/generic"
|
||||
externalclientset "k8s.io/client-go/kubernetes"
|
||||
restclient "k8s.io/client-go/rest"
|
||||
"k8s.io/client-go/transport"
|
||||
"k8s.io/kubernetes/pkg/api/legacyscheme"
|
||||
@ -65,10 +66,10 @@ func clientForToken(user string) *http.Client {
|
||||
}
|
||||
}
|
||||
|
||||
func clientsetForToken(user string, config *restclient.Config) clientset.Interface {
|
||||
func clientsetForToken(user string, config *restclient.Config) (clientset.Interface, externalclientset.Interface) {
|
||||
configCopy := *config
|
||||
configCopy.BearerToken = user
|
||||
return clientset.NewForConfigOrDie(&configCopy)
|
||||
return clientset.NewForConfigOrDie(&configCopy), externalclientset.NewForConfigOrDie(&configCopy)
|
||||
}
|
||||
|
||||
type testRESTOptionsGetter struct {
|
||||
@ -431,7 +432,8 @@ func TestRBAC(t *testing.T) {
|
||||
clientConfig := &restclient.Config{Host: s.URL, ContentConfig: restclient.ContentConfig{NegotiatedSerializer: legacyscheme.Codecs}}
|
||||
|
||||
// Bootstrap the API Server with the test case's initial roles.
|
||||
if err := tc.bootstrapRoles.bootstrap(clientsetForToken(superUser, clientConfig)); err != nil {
|
||||
superuserClient, _ := clientsetForToken(superUser, clientConfig)
|
||||
if err := tc.bootstrapRoles.bootstrap(superuserClient); err != nil {
|
||||
t.Errorf("case %d: failed to apply initial roles: %v", i, err)
|
||||
continue
|
||||
}
|
||||
|
||||
@ -298,7 +298,10 @@ func NewMasterConfig() *master.Config {
|
||||
// FIXME (soltysh): this GroupVersionResource override should be configurable
|
||||
// we need to set both for the whole group and for cronjobs, separately
|
||||
resourceEncoding.SetVersionEncoding(batch.GroupName, *testapi.Batch.GroupVersion(), schema.GroupVersion{Group: batch.GroupName, Version: runtime.APIVersionInternal})
|
||||
resourceEncoding.SetResourceEncoding(schema.GroupResource{Group: "batch", Resource: "cronjobs"}, schema.GroupVersion{Group: batch.GroupName, Version: "v1beta1"}, schema.GroupVersion{Group: batch.GroupName, Version: runtime.APIVersionInternal})
|
||||
resourceEncoding.SetResourceEncoding(schema.GroupResource{Group: batch.GroupName, Resource: "cronjobs"}, schema.GroupVersion{Group: batch.GroupName, Version: "v1beta1"}, schema.GroupVersion{Group: batch.GroupName, Version: runtime.APIVersionInternal})
|
||||
// volumeattachments only exist in storage.k8s.io/v1alpha1
|
||||
resourceEncoding.SetVersionEncoding(storage.GroupName, *testapi.Storage.GroupVersion(), schema.GroupVersion{Group: storage.GroupName, Version: runtime.APIVersionInternal})
|
||||
resourceEncoding.SetResourceEncoding(schema.GroupResource{Group: storage.GroupName, Resource: "volumeattachments"}, schema.GroupVersion{Group: storage.GroupName, Version: "v1alpha1"}, schema.GroupVersion{Group: storage.GroupName, Version: runtime.APIVersionInternal})
|
||||
|
||||
storageFactory := serverstorage.NewDefaultStorageFactory(etcdOptions.StorageConfig, runtime.ContentTypeJSON, ns, resourceEncoding, master.DefaultAPIResourceConfigSource(), nil)
|
||||
storageFactory.SetSerializer(
|
||||
|
||||
Loading…
Reference in New Issue
Block a user