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ResourceQuota admission control injects registry

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This commit is contained in:
Derek Carr 2017-05-18 14:00:02 -04:00
parent 151846db80
commit a71bea312a
17 changed files with 60 additions and 23 deletions
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1
cmd/kube-apiserver/app/BUILD
View File

@ -38,6 +38,7 @@ go_library(
"//pkg/master:go_default_library",
"//pkg/master/thirdparty:go_default_library",
"//pkg/master/tunneler:go_default_library",
"//pkg/quota/install:go_default_library",
"//pkg/registry/cachesize:go_default_library",
"//pkg/registry/rbac/rest:go_default_library",
"//pkg/version:go_default_library",

8
cmd/kube-apiserver/app/server.go
View File

@ -71,6 +71,7 @@ import (
kubeserver "k8s.io/kubernetes/pkg/kubeapiserver/server"
"k8s.io/kubernetes/pkg/master"
"k8s.io/kubernetes/pkg/master/tunneler"
quotainstall "k8s.io/kubernetes/pkg/quota/install"
"k8s.io/kubernetes/pkg/registry/cachesize"
rbacrest "k8s.io/kubernetes/pkg/registry/rbac/rest"
"k8s.io/kubernetes/pkg/version"
@ -392,7 +393,12 @@ func BuildAdmissionPluginInitializer(s *options.ServerRunOptions, client interna
// TODO: use a dynamic restmapper. See https://github.com/kubernetes/kubernetes/pull/42615.
restMapper := api.Registry.RESTMapper()
pluginInitializer := kubeapiserveradmission.NewPluginInitializer(client, sharedInformers, apiAuthorizer, cloudConfig, restMapper)
// NOTE: we do not provide informers to the quota registry because admission level decisions
// do not require us to open watches for all items tracked by quota.
quotaRegistry := quotainstall.NewRegistry(nil, nil)
pluginInitializer := kubeapiserveradmission.NewPluginInitializer(client, sharedInformers, apiAuthorizer, cloudConfig, restMapper, quotaRegistry)
return pluginInitializer, nil
}

1
federation/cmd/federation-apiserver/app/BUILD
View File

@ -49,6 +49,7 @@ go_library(
"//pkg/kubeapiserver/admission:go_default_library",
"//pkg/kubeapiserver/options:go_default_library",
"//pkg/kubeapiserver/server:go_default_library",
"//pkg/quota/install:go_default_library",
"//pkg/registry/autoscaling/horizontalpodautoscaler/storage:go_default_library",
"//pkg/registry/batch/job/storage:go_default_library",
"//pkg/registry/cachesize:go_default_library",

6
federation/cmd/federation-apiserver/app/server.go
View File

@ -49,6 +49,7 @@ import (
kubeapiserveradmission "k8s.io/kubernetes/pkg/kubeapiserver/admission"
kubeoptions "k8s.io/kubernetes/pkg/kubeapiserver/options"
kubeserver "k8s.io/kubernetes/pkg/kubeapiserver/server"
quotainstall "k8s.io/kubernetes/pkg/quota/install"
"k8s.io/kubernetes/pkg/registry/cachesize"
"k8s.io/kubernetes/pkg/routes"
"k8s.io/kubernetes/pkg/version"
@ -192,7 +193,10 @@ func NonBlockingRun(s *options.ServerRunOptions, stopCh <-chan struct{}) error {
}
}
pluginInitializer := kubeapiserveradmission.NewPluginInitializer(client, sharedInformers, apiAuthorizer, cloudConfig, nil)
// NOTE: we do not provide informers to the quota registry because admission level decisions
// do not require us to open watches for all items tracked by quota.
quotaRegistry := quotainstall.NewRegistry(nil, nil)
pluginInitializer := kubeapiserveradmission.NewPluginInitializer(client, sharedInformers, apiAuthorizer, cloudConfig, nil, quotaRegistry)
err = s.Admission.ApplyTo(
genericConfig,

1
pkg/kubeapiserver/admission/BUILD
View File

@ -29,6 +29,7 @@ go_library(
deps = [
"//pkg/client/clientset_generated/internalclientset:go_default_library",
"//pkg/client/informers/informers_generated/internalversion:go_default_library",
"//pkg/quota:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/api/meta:go_default_library",
"//vendor/k8s.io/apiserver/pkg/admission:go_default_library",
"//vendor/k8s.io/apiserver/pkg/authorization/authorizer:go_default_library",

4
pkg/kubeapiserver/admission/init_test.go
View File

@ -51,7 +51,7 @@ var _ WantsAuthorizer = &WantAuthorizerAdmission{}
// TestWantsAuthorizer ensures that the authorizer is injected when the WantsAuthorizer
// interface is implemented.
func TestWantsAuthorizer(t *testing.T) {
initializer := NewPluginInitializer(nil, nil, &TestAuthorizer{}, nil, nil)
initializer := NewPluginInitializer(nil, nil, &TestAuthorizer{}, nil, nil, nil)
wantAuthorizerAdmission := &WantAuthorizerAdmission{}
initializer.Initialize(wantAuthorizerAdmission)
if wantAuthorizerAdmission.auth == nil {
@ -73,7 +73,7 @@ func (self *WantsCloudConfigAdmissionPlugin) Validate() error
func TestCloudConfigAdmissionPlugin(t *testing.T) {
cloudConfig := []byte("cloud-configuration")
initializer := NewPluginInitializer(nil, nil, &TestAuthorizer{}, cloudConfig, nil)
initializer := NewPluginInitializer(nil, nil, &TestAuthorizer{}, cloudConfig, nil, nil)
wantsCloudConfigAdmission := &WantsCloudConfigAdmissionPlugin{}
initializer.Initialize(wantsCloudConfigAdmission)

20
pkg/kubeapiserver/admission/initializer.go
View File

@ -22,6 +22,7 @@ import (
"k8s.io/apiserver/pkg/authorization/authorizer"
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/internalversion"
"k8s.io/kubernetes/pkg/quota"
)
// TODO add a `WantsToRun` which takes a stopCh. Might make it generic.
@ -54,24 +55,37 @@ type WantsRESTMapper interface {
SetRESTMapper(meta.RESTMapper)
}
// WantsQuotaRegistry defines a function which sets quota registry for admission plugins that need it.
type WantsQuotaRegistry interface {
SetQuotaRegistry(quota.Registry)
admission.Validator
}
type pluginInitializer struct {
internalClient internalclientset.Interface
informers informers.SharedInformerFactory
authorizer authorizer.Authorizer
cloudConfig []byte
restMapper meta.RESTMapper
quotaRegistry quota.Registry
}
var _ admission.PluginInitializer = pluginInitializer{}
// NewPluginInitializer constructs new instance of PluginInitializer
func NewPluginInitializer(internalClient internalclientset.Interface, sharedInformers informers.SharedInformerFactory, authz authorizer.Authorizer, cloudConfig []byte, restMapper meta.RESTMapper) admission.PluginInitializer {
func NewPluginInitializer(internalClient internalclientset.Interface,
sharedInformers informers.SharedInformerFactory,
authz authorizer.Authorizer,
cloudConfig []byte,
restMapper meta.RESTMapper,
quotaRegistry quota.Registry) admission.PluginInitializer {
return pluginInitializer{
internalClient: internalClient,
informers: sharedInformers,
authorizer: authz,
cloudConfig: cloudConfig,
restMapper: restMapper,
quotaRegistry: quotaRegistry,
}
}
@ -97,4 +111,8 @@ func (i pluginInitializer) Initialize(plugin admission.Interface) {
if wants, ok := plugin.(WantsRESTMapper); ok {
wants.SetRESTMapper(i.restMapper)
}
if wants, ok := plugin.(WantsQuotaRegistry); ok {
wants.SetQuotaRegistry(i.quotaRegistry)
}
}

2
plugin/pkg/admission/gc/gc_admission_test.go
View File

@ -74,7 +74,7 @@ func newGCPermissionsEnforcement() *gcPermissionsEnforcement {
Handler: admission.NewHandler(admission.Create, admission.Update),
whiteList: whiteList,
}
pluginInitializer := kubeadmission.NewPluginInitializer(nil, nil, fakeAuthorizer{}, nil, api.Registry.RESTMapper())
pluginInitializer := kubeadmission.NewPluginInitializer(nil, nil, fakeAuthorizer{}, nil, api.Registry.RESTMapper(), nil)
pluginInitializer.Initialize(gcAdmit)
return gcAdmit
}

2
plugin/pkg/admission/limitranger/admission_test.go
View File

@ -595,7 +595,7 @@ func newHandlerForTest(c clientset.Interface) (admission.Interface, informers.Sh
if err != nil {
return nil, f, err
}
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil)
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil, nil)
pluginInitializer.Initialize(handler)
err = admission.Validate(handler)
return handler, f, err

2
plugin/pkg/admission/namespace/autoprovision/admission_test.go
View File

@ -38,7 +38,7 @@ import (
func newHandlerForTest(c clientset.Interface) (admission.Interface, informers.SharedInformerFactory, error) {
f := informers.NewSharedInformerFactory(c, 5*time.Minute)
handler := NewProvision()
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil)
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil, nil)
pluginInitializer.Initialize(handler)
err := admission.Validate(handler)
return handler, f, err

2
plugin/pkg/admission/namespace/exists/admission_test.go
View File

@ -37,7 +37,7 @@ import (
func newHandlerForTest(c clientset.Interface) (admission.Interface, informers.SharedInformerFactory, error) {
f := informers.NewSharedInformerFactory(c, 5*time.Minute)
handler := NewExists()
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil)
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil, nil)
pluginInitializer.Initialize(handler)
err := admission.Validate(handler)
return handler, f, err

2
plugin/pkg/admission/namespace/lifecycle/admission_test.go
View File

@ -48,7 +48,7 @@ func newHandlerForTestWithClock(c clientset.Interface, cacheClock clock.Clock) (
if err != nil {
return nil, f, err
}
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil)
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil, nil)
pluginInitializer.Initialize(handler)
err = admission.Validate(handler)
return handler, f, err

2
plugin/pkg/admission/podnodeselector/admission_test.go
View File

@ -191,7 +191,7 @@ func TestHandles(t *testing.T) {
func newHandlerForTest(c clientset.Interface) (*podNodeSelector, informers.SharedInformerFactory, error) {
f := informers.NewSharedInformerFactory(c, 5*time.Minute)
handler := NewPodNodeSelector(nil)
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil)
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil, nil)
pluginInitializer.Initialize(handler)
err := admission.Validate(handler)
return handler, f, err

2
plugin/pkg/admission/podtolerationrestriction/admission_test.go
View File

@ -193,7 +193,7 @@ func newHandlerForTest(c clientset.Interface) (*podTolerationsPlugin, informers.
return nil, nil, err
}
handler := NewPodTolerationsPlugin(pluginConfig)
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil)
pluginInitializer := kubeadmission.NewPluginInitializer(c, f, nil, nil, nil, nil)
pluginInitializer.Initialize(handler)
err = admission.Validate(handler)
return handler, f, err

1
plugin/pkg/admission/resourcequota/BUILD
View File

@ -25,7 +25,6 @@ go_library(
"//pkg/client/listers/core/internalversion:go_default_library",
"//pkg/kubeapiserver/admission:go_default_library",
"//pkg/quota:go_default_library",
"//pkg/quota/install:go_default_library",
"//pkg/util/workqueue/prometheus:go_default_library",
"//plugin/pkg/admission/resourcequota/apis/resourcequota:go_default_library",
"//plugin/pkg/admission/resourcequota/apis/resourcequota/install:go_default_library",

19
plugin/pkg/admission/resourcequota/admission.go
View File

@ -27,7 +27,6 @@ import (
informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/internalversion"
kubeapiserveradmission "k8s.io/kubernetes/pkg/kubeapiserver/admission"
"k8s.io/kubernetes/pkg/quota"
"k8s.io/kubernetes/pkg/quota/install"
resourcequotaapi "k8s.io/kubernetes/plugin/pkg/admission/resourcequota/apis/resourcequota"
"k8s.io/kubernetes/plugin/pkg/admission/resourcequota/apis/resourcequota/validation"
)
@ -46,10 +45,7 @@ func init() {
return nil, errs.ToAggregate()
}
}
// NOTE: we do not provide informers to the registry because admission level decisions
// does not require us to open watches for all items tracked by quota.
registry := install.NewRegistry(nil, nil)
return NewResourceQuota(registry, configuration, 5, make(chan struct{}))
return NewResourceQuota(configuration, 5, make(chan struct{}))
})
}
@ -65,6 +61,7 @@ type quotaAdmission struct {
}
var _ = kubeapiserveradmission.WantsInternalKubeClientSet(&quotaAdmission{})
var _ = kubeapiserveradmission.WantsQuotaRegistry(&quotaAdmission{})
type liveLookupEntry struct {
expiry time.Time
@ -74,7 +71,7 @@ type liveLookupEntry struct {
// NewResourceQuota configures an admission controller that can enforce quota constraints
// using the provided registry. The registry must have the capability to handle group/kinds that
// are persisted by the server this admission controller is intercepting
func NewResourceQuota(registry quota.Registry, config *resourcequotaapi.Configuration, numEvaluators int, stopCh <-chan struct{}) (admission.Interface, error) {
func NewResourceQuota(config *resourcequotaapi.Configuration, numEvaluators int, stopCh <-chan struct{}) (admission.Interface, error) {
quotaAccessor, err := newQuotaAccessor()
if err != nil {
return nil, err
@ -83,11 +80,9 @@ func NewResourceQuota(registry quota.Registry, config *resourcequotaapi.Configur
return &quotaAdmission{
Handler: admission.NewHandler(admission.Create, admission.Update),
stopCh: stopCh,
registry: registry,
numEvaluators: numEvaluators,
config: config,
quotaAccessor: quotaAccessor,
evaluator: NewQuotaEvaluator(quotaAccessor, registry, nil, config, numEvaluators, stopCh),
}, nil
}
@ -99,6 +94,11 @@ func (a *quotaAdmission) SetInternalKubeInformerFactory(f informers.SharedInform
a.quotaAccessor.lister = f.Core().InternalVersion().ResourceQuotas().Lister()
}
func (a *quotaAdmission) SetQuotaRegistry(r quota.Registry) {
a.registry = r
a.evaluator = NewQuotaEvaluator(a.quotaAccessor, a.registry, nil, a.config, a.numEvaluators, a.stopCh)
}
// Validate ensures an authorizer is set.
func (a *quotaAdmission) Validate() error {
if a.quotaAccessor == nil {
@ -110,6 +110,9 @@ func (a *quotaAdmission) Validate() error {
if a.quotaAccessor.lister == nil {
return fmt.Errorf("missing quotaAccessor.lister")
}
if a.registry == nil {
return fmt.Errorf("missing registry")
}
if a.evaluator == nil {
return fmt.Errorf("missing evaluator")
}

8
test/integration/quota/quota_test.go
View File

@ -66,13 +66,15 @@ func TestQuota(t *testing.T) {
clientset := clientset.NewForConfigOrDie(&restclient.Config{QPS: -1, Host: s.URL, ContentConfig: restclient.ContentConfig{GroupVersion: &api.Registry.GroupOrDie(v1.GroupName).GroupVersion}})
internalClientset := internalclientset.NewForConfigOrDie(&restclient.Config{QPS: -1, Host: s.URL, ContentConfig: restclient.ContentConfig{GroupVersion: &api.Registry.GroupOrDie(v1.GroupName).GroupVersion}})
config := &resourcequotaapi.Configuration{}
admission, err := resourcequota.NewResourceQuota(quotainstall.NewRegistry(nil, nil), config, 5, admissionCh)
admission, err := resourcequota.NewResourceQuota(config, 5, admissionCh)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
admission.(kubeadmission.WantsInternalKubeClientSet).SetInternalKubeClientSet(internalClientset)
internalInformers := internalinformers.NewSharedInformerFactory(internalClientset, controller.NoResyncPeriodFunc())
admission.(kubeadmission.WantsInternalKubeInformerFactory).SetInternalKubeInformerFactory(internalInformers)
quotaRegistry := quotainstall.NewRegistry(nil, nil)
admission.(kubeadmission.WantsQuotaRegistry).SetQuotaRegistry(quotaRegistry)
defer close(admissionCh)
masterConfig := framework.NewIntegrationTestMasterConfig()
@ -251,13 +253,15 @@ func TestQuotaLimitedResourceDenial(t *testing.T) {
},
},
}
admission, err := resourcequota.NewResourceQuota(quotainstall.NewRegistry(nil, nil), config, 5, admissionCh)
quotaRegistry := quotainstall.NewRegistry(nil, nil)
admission, err := resourcequota.NewResourceQuota(config, 5, admissionCh)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
admission.(kubeadmission.WantsInternalKubeClientSet).SetInternalKubeClientSet(internalClientset)
internalInformers := internalinformers.NewSharedInformerFactory(internalClientset, controller.NoResyncPeriodFunc())
admission.(kubeadmission.WantsInternalKubeInformerFactory).SetInternalKubeInformerFactory(internalInformers)
admission.(kubeadmission.WantsQuotaRegistry).SetQuotaRegistry(quotaRegistry)
defer close(admissionCh)
masterConfig := framework.NewIntegrationTestMasterConfig()