github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-07-30 06:54:01 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #93873 from roycaihw/storage-version/handler

Browse Source 
Apiserver updates storageversions API and filters certain write requests during bootstrap
This commit is contained in:
Kubernetes Prow Robot 2020-11-09 17:30:41 -08:00 committed by GitHub
commit 4261200724
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
27 changed files with 911 additions and 117 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
cmd/kube-apiserver/app/aggregator.go
View File

@ -34,6 +34,7 @@ import (
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apiserver/pkg/admission"
"k8s.io/apiserver/pkg/features"
genericfeatures "k8s.io/apiserver/pkg/features"
genericapiserver "k8s.io/apiserver/pkg/server"
"k8s.io/apiserver/pkg/server/healthz"
genericoptions "k8s.io/apiserver/pkg/server/options"
@ -67,6 +68,14 @@ func createAggregatorConfig(
genericConfig.PostStartHooks = map[string]genericapiserver.PostStartHookConfigEntry{}
genericConfig.RESTOptionsGetter = nil
if utilfeature.DefaultFeatureGate.Enabled(genericfeatures.StorageVersionAPI) &&
utilfeature.DefaultFeatureGate.Enabled(genericfeatures.APIServerIdentity) {
// Add StorageVersionPrecondition handler to aggregator-apiserver.
// The handler will block write requests to built-in resources until the
// target resources' storage versions are up-to-date.
genericConfig.BuildHandlerChainFunc = genericapiserver.BuildHandlerChainWithStorageVersionPrecondition
}
// override genericConfig.AdmissionControl with kube-aggregator's scheme,
// because aggregator apiserver should use its own scheme to convert its own resources.
err := commandOptions.Admission.ApplyTo(

1
cmd/kube-apiserver/app/testing/BUILD
View File

@ -18,6 +18,7 @@ go_library(
"//staging/src/k8s.io/apimachinery/pkg/util/wait:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/registry/generic/registry:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/storage/storagebackend:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/storageversion:go_default_library",
"//staging/src/k8s.io/client-go/kubernetes:go_default_library",
"//staging/src/k8s.io/client-go/rest:go_default_library",
"//staging/src/k8s.io/client-go/util/cert:go_default_library",

86
cmd/kube-apiserver/app/testing/testserver.go
View File

@ -34,6 +34,7 @@ import (
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/apiserver/pkg/registry/generic/registry"
"k8s.io/apiserver/pkg/storage/storagebackend"
"k8s.io/apiserver/pkg/storageversion"
"k8s.io/client-go/kubernetes"
restclient "k8s.io/client-go/rest"
"k8s.io/client-go/util/cert"
@ -49,9 +50,10 @@ type TearDownFunc func()
type TestServerInstanceOptions struct {
// DisableStorageCleanup Disable the automatic storage cleanup
DisableStorageCleanup bool
// Enable cert-auth for the kube-apiserver
EnableCertAuth bool
// Wrap the storage version interface of the created server's generic server.
StorageVersionWrapFunc func(storageversion.Manager) storageversion.Manager
}
// TestServer return values supplied by kube-test-ApiServer
@ -182,6 +184,9 @@ func StartTestServer(t Logger, instanceOptions *TestServerInstanceOptions, custo
t.Logf("runtime-config=%v", completedOptions.APIEnablement.RuntimeConfig)
t.Logf("Starting kube-apiserver on port %d...", s.SecureServing.BindPort)
server, err := app.CreateServerChain(completedOptions, stopCh)
if instanceOptions.StorageVersionWrapFunc != nil {
server.GenericAPIServer.StorageVersionManager = instanceOptions.StorageVersionWrapFunc(server.GenericAPIServer.StorageVersionManager)
}
if err != nil {
return result, fmt.Errorf("failed to create server chain: %v", err)
}
@ -196,51 +201,54 @@ func StartTestServer(t Logger, instanceOptions *TestServerInstanceOptions, custo
}
}(stopCh)
t.Logf("Waiting for /healthz to be ok...")
// skip healthz check when we test the storage version manager poststart hook
if instanceOptions.StorageVersionWrapFunc == nil {
t.Logf("Waiting for /healthz to be ok...")
client, err := kubernetes.NewForConfig(server.GenericAPIServer.LoopbackClientConfig)
if err != nil {
return result, fmt.Errorf("failed to create a client: %v", err)
}
// wait until healthz endpoint returns ok
err = wait.Poll(100*time.Millisecond, time.Minute, func() (bool, error) {
select {
case err := <-errCh:
return false, err
default:
client, err := kubernetes.NewForConfig(server.GenericAPIServer.LoopbackClientConfig)
if err != nil {
return result, fmt.Errorf("failed to create a client: %v", err)
}
result := client.CoreV1().RESTClient().Get().AbsPath("/healthz").Do(context.TODO())
status := 0
result.StatusCode(&status)
if status == 200 {
return true, nil
}
return false, nil
})
if err != nil {
return result, fmt.Errorf("failed to wait for /healthz to return ok: %v", err)
}
// wait until healthz endpoint returns ok
err = wait.Poll(100*time.Millisecond, time.Minute, func() (bool, error) {
select {
case err := <-errCh:
return false, err
default:
}
// wait until default namespace is created
err = wait.Poll(100*time.Millisecond, 30*time.Second, func() (bool, error) {
select {
case err := <-errCh:
return false, err
default:
}
if _, err := client.CoreV1().Namespaces().Get(context.TODO(), "default", metav1.GetOptions{}); err != nil {
if !errors.IsNotFound(err) {
t.Logf("Unable to get default namespace: %v", err)
result := client.CoreV1().RESTClient().Get().AbsPath("/healthz").Do(context.TODO())
status := 0
result.StatusCode(&status)
if status == 200 {
return true, nil
}
return false, nil
})
if err != nil {
return result, fmt.Errorf("failed to wait for /healthz to return ok: %v", err)
}
// wait until default namespace is created
err = wait.Poll(100*time.Millisecond, 30*time.Second, func() (bool, error) {
select {
case err := <-errCh:
return false, err
default:
}
if _, err := client.CoreV1().Namespaces().Get(context.TODO(), "default", metav1.GetOptions{}); err != nil {
if !errors.IsNotFound(err) {
t.Logf("Unable to get default namespace: %v", err)
}
return false, nil
}
return true, nil
})
if err != nil {
return result, fmt.Errorf("failed to wait for default namespace to be created: %v", err)
}
return true, nil
})
if err != nil {
return result, fmt.Errorf("failed to wait for default namespace to be created: %v", err)
}
// from here the caller must call tearDown

47
pkg/apis/apiserverinternal/validation/validation.go
View File

@ -83,13 +83,13 @@ func validateServerStorageVersion(ssv apiserverinternal.ServerStorageVersion, fl
for _, msg := range apimachineryvalidation.NameIsDNSSubdomain(ssv.APIServerID, false) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("apiServerID"), ssv.APIServerID, msg))
}
if errs := utilvalidation.IsDNS1035Label(ssv.EncodingVersion); len(errs) > 0 {
if errs := isValidAPIVersion(ssv.EncodingVersion); len(errs) > 0 {
allErrs = append(allErrs, field.Invalid(fldPath.Child("encodingVersion"), ssv.EncodingVersion, strings.Join(errs, ",")))
}
found := false
for i, dv := range ssv.DecodableVersions {
if errs := utilvalidation.IsDNS1035Label(dv); len(errs) > 0 {
if errs := isValidAPIVersion(dv); len(errs) > 0 {
allErrs = append(allErrs, field.Invalid(fldPath.Child("decodableVersions").Index(i), dv, strings.Join(errs, ",")))
}
if dv == ssv.EncodingVersion {
@ -158,3 +158,46 @@ func validateStorageVersionCondition(conditions []apiserverinternal.StorageVersi
}
return allErrs
}
const dns1035LabelFmt string = "[a-z]([-a-z0-9]*[a-z0-9])?"
const dns1035LabelErrMsg string = "a DNS-1035 label, which must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character"
// isValidAPIVersion tests whether the value passed is a valid apiVersion. A
// valid apiVersion contains a version string that matches DNS_LABEL format,
// with an optional group/ prefix, where the group string matches DNS_SUBDOMAIN
// format. If the value is not valid, a list of error strings is returned.
// Otherwise an empty list (or nil) is returned.
func isValidAPIVersion(apiVersion string) []string {
var errs []string
parts := strings.Split(apiVersion, "/")
var version string
switch len(parts) {
case 1:
version = parts[0]
case 2:
var group string
group, version = parts[0], parts[1]
if len(group) == 0 {
errs = append(errs, "group part: "+utilvalidation.EmptyError())
} else if msgs := utilvalidation.IsDNS1123Subdomain(group); len(msgs) != 0 {
errs = append(errs, prefixEach(msgs, "group part: ")...)
}
default:
return append(errs, "an apiVersion is "+utilvalidation.RegexError(dns1035LabelErrMsg, dns1035LabelFmt, "my-name", "abc-123")+
" with an optional DNS subdomain prefix and '/' (e.g. 'example.com/MyVersion')")
}
if len(version) == 0 {
errs = append(errs, "version part: "+utilvalidation.EmptyError())
} else if msgs := utilvalidation.IsDNS1035Label(version); len(msgs) != 0 {
errs = append(errs, prefixEach(msgs, "version part: ")...)
}
return errs
}
func prefixEach(msgs []string, prefix string) []string {
for i := range msgs {
msgs[i] = prefix + msgs[i]
}
return msgs
}

56
pkg/apis/apiserverinternal/validation/validation_test.go
View File

@ -61,6 +61,62 @@ func TestValidateServerStorageVersion(t *testing.T) {
},
expectedErr: "",
},
{
ssv: apiserverinternal.ServerStorageVersion{
APIServerID: "fea",
EncodingVersion: "mygroup.com/v2",
DecodableVersions: []string{"v1alpha1", "v1", "mygroup.com/v2"},
},
expectedErr: "",
},
{
ssv: apiserverinternal.ServerStorageVersion{
APIServerID: "fea",
EncodingVersion: "mygroup.com/v2",
DecodableVersions: []string{"mygroup.com/v2", "/v3"},
},
expectedErr: `[].decodableVersions[1]: Invalid value: "/v3": group part: must be non-empty`,
},
{
ssv: apiserverinternal.ServerStorageVersion{
APIServerID: "fea",
EncodingVersion: "mygroup.com/v2",
DecodableVersions: []string{"mygroup.com/v2", "mygroup.com/"},
},
expectedErr: `[].decodableVersions[1]: Invalid value: "mygroup.com/": version part: must be non-empty`,
},
{
ssv: apiserverinternal.ServerStorageVersion{
APIServerID: "fea",
EncodingVersion: "/v3",
DecodableVersions: []string{"mygroup.com/v2", "/v3"},
},
expectedErr: `[].encodingVersion: Invalid value: "/v3": group part: must be non-empty`,
},
{
ssv: apiserverinternal.ServerStorageVersion{
APIServerID: "fea",
EncodingVersion: "v1",
DecodableVersions: []string{"v1", "mygroup_com/v2"},
},
expectedErr: `[].decodableVersions[1]: Invalid value: "mygroup_com/v2": group part: a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')`,
},
{
ssv: apiserverinternal.ServerStorageVersion{
APIServerID: "fea",
EncodingVersion: "v1",
DecodableVersions: []string{"v1", "mygroup.com/v2_"},
},
expectedErr: `[].decodableVersions[1]: Invalid value: "mygroup.com/v2_": version part: a DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?')`,
},
{
ssv: apiserverinternal.ServerStorageVersion{
APIServerID: "fea",
EncodingVersion: "v1",
DecodableVersions: []string{"v1", "mygroup.com/v2/myresource"},
},
expectedErr: `[].decodableVersions[1]: Invalid value: "mygroup.com/v2/myresource": an apiVersion is a DNS-1035 label, which must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?') with an optional DNS subdomain prefix and '/' (e.g. 'example.com/MyVersion')`,
},
}
for _, tc := range cases {

21
pkg/registry/rbac/rest/storage_rbac.go
View File

@ -26,6 +26,7 @@ import (
rbacapiv1 "k8s.io/api/rbac/v1"
rbacapiv1alpha1 "k8s.io/api/rbac/v1alpha1"
rbacapiv1beta1 "k8s.io/api/rbac/v1beta1"
"k8s.io/apimachinery/pkg/api/errors"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
@ -160,6 +161,14 @@ type PolicyData struct {
ClusterRoleBindingsToSplit map[string]rbacapiv1.ClusterRoleBinding
}
func isConflictOrServiceUnavailable(err error) bool {
return errors.IsConflict(err) || errors.IsServiceUnavailable(err)
}
func retryOnConflictOrServiceUnavailable(backoff wait.Backoff, fn func() error) error {
return retry.OnError(backoff, isConflictOrServiceUnavailable, fn)
}
func (p *PolicyData) EnsureRBACPolicy() genericapiserver.PostStartHookFunc {
return func(hookContext genericapiserver.PostStartHookContext) error {
// initializing roles is really important. On some e2e runs, we've seen cases where etcd is down when the server
@ -206,7 +215,8 @@ func (p *PolicyData) EnsureRBACPolicy() genericapiserver.PostStartHookFunc {
Client: reconciliation.ClusterRoleModifier{Client: clientset.ClusterRoles()},
Confirm: true,
}
err := retry.RetryOnConflict(retry.DefaultBackoff, func() error {
// ServiceUnavailble error is returned when the API server is blocked by storage version updates
err := retryOnConflictOrServiceUnavailable(retry.DefaultBackoff, func() error {
result, err := opts.Run()
if err != nil {
return err
@ -234,7 +244,8 @@ func (p *PolicyData) EnsureRBACPolicy() genericapiserver.PostStartHookFunc {
Client: reconciliation.ClusterRoleBindingClientAdapter{Client: clientset.ClusterRoleBindings()},
Confirm: true,
}
err := retry.RetryOnConflict(retry.DefaultBackoff, func() error {
// ServiceUnavailble error is returned when the API server is blocked by storage version updates
err := retryOnConflictOrServiceUnavailable(retry.DefaultBackoff, func() error {
result, err := opts.Run()
if err != nil {
return err
@ -265,7 +276,8 @@ func (p *PolicyData) EnsureRBACPolicy() genericapiserver.PostStartHookFunc {
Client: reconciliation.RoleModifier{Client: clientset, NamespaceClient: coreclientset.Namespaces()},
Confirm: true,
}
err := retry.RetryOnConflict(retry.DefaultBackoff, func() error {
// ServiceUnavailble error is returned when the API server is blocked by storage version updates
err := retryOnConflictOrServiceUnavailable(retry.DefaultBackoff, func() error {
result, err := opts.Run()
if err != nil {
return err
@ -295,7 +307,8 @@ func (p *PolicyData) EnsureRBACPolicy() genericapiserver.PostStartHookFunc {
Client: reconciliation.RoleBindingClientAdapter{Client: clientset, NamespaceClient: coreclientset.Namespaces()},
Confirm: true,
}
err := retry.RetryOnConflict(retry.DefaultBackoff, func() error {
// ServiceUnavailble error is returned when the API server is blocked by storage version updates
err := retryOnConflictOrServiceUnavailable(retry.DefaultBackoff, func() error {
result, err := opts.Run()
if err != nil {
return err

11
pkg/registry/scheduling/rest/storage_scheduling.go
View File

@ -128,11 +128,16 @@ func AddSystemPriorityClasses() genericapiserver.PostStartHookFunc {
if err != nil {
if apierrors.IsNotFound(err) {
_, err := schedClientSet.PriorityClasses().Create(context.TODO(), pc, metav1.CreateOptions{})
if err != nil && !apierrors.IsAlreadyExists(err) {
return false, err
} else {
if err == nil || apierrors.IsAlreadyExists(err) {
klog.Infof("created PriorityClass %s with value %v", pc.Name, pc.Value)
continue
}
// ServiceUnavailble error is returned when the API server is blocked by storage version updates
if apierrors.IsServiceUnavailable(err) {
klog.Infof("going to retry, unable to create PriorityClass %s: %v", pc.Name, err)
return false, nil
}
return false, err
} else {
// Unable to get the priority class for reasons other than "not found".
klog.Warningf("unable to get PriorityClass %v: %v. Retrying...", pc.Name, err)

1
staging/src/k8s.io/apiserver/pkg/endpoints/BUILD
View File

@ -90,6 +90,7 @@ go_library(
"//staging/src/k8s.io/apiserver/pkg/endpoints/warning:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/features:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/registry/rest:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/storageversion:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
"//staging/src/k8s.io/component-base/version:go_default_library",
"//vendor/github.com/emicklei/go-restful:go_default_library",

12
staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go
View File

@ -254,7 +254,7 @@ func handleInternal(storage map[string]rest.Storage, admissionControl admission.
group.GroupVersion = grouplessGroupVersion
group.OptionsExternalVersion = &grouplessGroupVersion
group.Serializer = codecs
if err := (&group).InstallREST(container); err != nil {
if _, err := (&group).InstallREST(container); err != nil {
panic(fmt.Sprintf("unable to install container %s: %v", group.GroupVersion, err))
}
}
@ -266,7 +266,7 @@ func handleInternal(storage map[string]rest.Storage, admissionControl admission.
group.GroupVersion = testGroupVersion
group.OptionsExternalVersion = &testGroupVersion
group.Serializer = codecs
if err := (&group).InstallREST(container); err != nil {
if _, err := (&group).InstallREST(container); err != nil {
panic(fmt.Sprintf("unable to install container %s: %v", group.GroupVersion, err))
}
}
@ -278,7 +278,7 @@ func handleInternal(storage map[string]rest.Storage, admissionControl admission.
group.GroupVersion = newGroupVersion
group.OptionsExternalVersion = &newGroupVersion
group.Serializer = codecs
if err := (&group).InstallREST(container); err != nil {
if _, err := (&group).InstallREST(container); err != nil {
panic(fmt.Sprintf("unable to install container %s: %v", group.GroupVersion, err))
}
}
@ -3678,7 +3678,7 @@ func TestParentResourceIsRequired(t *testing.T) {
ParameterCodec: parameterCodec,
}
container := restful.NewContainer()
if err := group.InstallREST(container); err == nil {
if _, err := group.InstallREST(container); err == nil {
t.Fatal("expected error")
}
@ -3710,7 +3710,7 @@ func TestParentResourceIsRequired(t *testing.T) {
ParameterCodec: parameterCodec,
}
container = restful.NewContainer()
if err := group.InstallREST(container); err != nil {
if _, err := group.InstallREST(container); err != nil {
t.Fatal(err)
}
@ -4566,7 +4566,7 @@ func TestXGSubresource(t *testing.T) {
Serializer: codecs,
}
if err := (&group).InstallREST(container); err != nil {
if _, err := (&group).InstallREST(container); err != nil {
panic(fmt.Sprintf("unable to install container %s: %v", group.GroupVersion, err))
}

3
staging/src/k8s.io/apiserver/pkg/endpoints/filters/BUILD
View File

@ -58,6 +58,7 @@ go_library(
"metrics.go",
"request_received_time.go",
"requestinfo.go",
"storageversion.go",
"warning.go",
],
importmap = "k8s.io/kubernetes/vendor/k8s.io/apiserver/pkg/endpoints/filters",
@ -82,9 +83,11 @@ go_library(
"//staging/src/k8s.io/apiserver/pkg/endpoints/handlers/responsewriters:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/endpoints/request:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/server/httplog:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/storageversion:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/warning:go_default_library",
"//staging/src/k8s.io/component-base/metrics:go_default_library",
"//staging/src/k8s.io/component-base/metrics/legacyregistry:go_default_library",
"//staging/src/k8s.io/component-base/metrics/prometheus/workqueue:go_default_library",
"//vendor/k8s.io/klog/v2:go_default_library",
],
)

83
staging/src/k8s.io/apiserver/pkg/endpoints/filters/storageversion.go Normal file
View File

@ -0,0 +1,83 @@
/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package filters
import (
"errors"
"fmt"
"net/http"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apiserver/pkg/endpoints/handlers/responsewriters"
"k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/storageversion"
_ "k8s.io/component-base/metrics/prometheus/workqueue" // for workqueue metric registration
"k8s.io/klog/v2"
)
// WithStorageVersionPrecondition checks if the storage version barrier has
// completed, if not, it only passes the following API requests:
// 1. non-resource requests,
// 2. read requests,
// 3. write requests to the storageversion API,
// 4. resources whose StorageVersion is not pending update, including non-persisted resources.
func WithStorageVersionPrecondition(handler http.Handler, svm storageversion.Manager, s runtime.NegotiatedSerializer) http.Handler {
if svm == nil {
// TODO(roycaihw): switch to warning after the feature graduate to beta/GA
klog.V(2).Infof("Storage Version barrier is disabled")
return handler
}
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
if svm.Completed() {
handler.ServeHTTP(w, req)
return
}
ctx := req.Context()
requestInfo, found := request.RequestInfoFrom(ctx)
if !found {
responsewriters.InternalError(w, req, errors.New("no RequestInfo found in the context"))
return
}
// Allow non-resource requests
if !requestInfo.IsResourceRequest {
handler.ServeHTTP(w, req)
return
}
// Allow read requests
if requestInfo.Verb == "get" || requestInfo.Verb == "list" || requestInfo.Verb == "watch" {
handler.ServeHTTP(w, req)
return
}
// Allow writes to the storage version API
if requestInfo.APIGroup == "internal.apiserver.k8s.io" && requestInfo.Resource == "storageversions" {
handler.ServeHTTP(w, req)
return
}
// If the resource's StorageVersion is not in the to-be-updated list, let it pass.
// Non-persisted resources are not in the to-be-updated list, so they will pass.
gr := schema.GroupResource{requestInfo.APIGroup, requestInfo.Resource}
if !svm.PendingUpdate(gr) {
handler.ServeHTTP(w, req)
return
}
gv := schema.GroupVersion{requestInfo.APIGroup, requestInfo.APIVersion}
responsewriters.ErrorNegotiated(apierrors.NewServiceUnavailable(fmt.Sprintf("wait for storage version registration to complete for resource: %v, last seen error: %v", gr, svm.LastUpdateError(gr))), s, gv, w, req)
})
}

20
staging/src/k8s.io/apiserver/pkg/endpoints/groupversion.go
View File

@ -32,6 +32,7 @@ import (
"k8s.io/apiserver/pkg/endpoints/discovery"
"k8s.io/apiserver/pkg/endpoints/handlers/fieldmanager"
"k8s.io/apiserver/pkg/registry/rest"
"k8s.io/apiserver/pkg/storageversion"
openapiproto "k8s.io/kube-openapi/pkg/util/proto"
)
@ -96,7 +97,7 @@ type APIGroupVersion struct {
// InstallREST registers the REST handlers (storage, watch, proxy and redirect) into a restful Container.
// It is expected that the provided path root prefix will serve all operations. Root MUST NOT end
// in a slash.
func (g *APIGroupVersion) InstallREST(container *restful.Container) error {
func (g *APIGroupVersion) InstallREST(container *restful.Container) ([]*storageversion.ResourceInfo, error) {
prefix := path.Join(g.Root, g.GroupVersion.Group, g.GroupVersion.Version)
installer := &APIInstaller{
group: g,
@ -104,11 +105,24 @@ func (g *APIGroupVersion) InstallREST(container *restful.Container) error {
minRequestTimeout: g.MinRequestTimeout,
}
apiResources, ws, registrationErrors := installer.Install()
apiResources, resourceInfos, ws, registrationErrors := installer.Install()
versionDiscoveryHandler := discovery.NewAPIVersionHandler(g.Serializer, g.GroupVersion, staticLister{apiResources})
versionDiscoveryHandler.AddToWebService(ws)
container.Add(ws)
return utilerrors.NewAggregate(registrationErrors)
return removeNonPersistedResources(resourceInfos), utilerrors.NewAggregate(registrationErrors)
}
func removeNonPersistedResources(infos []*storageversion.ResourceInfo) []*storageversion.ResourceInfo {
var filtered []*storageversion.ResourceInfo
for _, info := range infos {
// if EncodingVersion is empty, then the apiserver does not
// need to register this resource via the storage version API,
// thus we can remove it.
if info != nil && len(info.EncodingVersion) > 0 {
filtered = append(filtered, info)
}
}
return filtered
}
// staticLister implements the APIResourceLister interface

119
staging/src/k8s.io/apiserver/pkg/endpoints/installer.go
View File

@ -43,6 +43,7 @@ import (
utilwarning "k8s.io/apiserver/pkg/endpoints/warning"
"k8s.io/apiserver/pkg/features"
"k8s.io/apiserver/pkg/registry/rest"
"k8s.io/apiserver/pkg/storageversion"
utilfeature "k8s.io/apiserver/pkg/util/feature"
versioninfo "k8s.io/component-base/version"
)
@ -94,8 +95,9 @@ var toDiscoveryKubeVerb = map[string]string{
}
// Install handlers for API resources.
func (a *APIInstaller) Install() ([]metav1.APIResource, *restful.WebService, []error) {
func (a *APIInstaller) Install() ([]metav1.APIResource, []*storageversion.ResourceInfo, *restful.WebService, []error) {
var apiResources []metav1.APIResource
var resourceInfos []*storageversion.ResourceInfo
var errors []error
ws := a.newWebService()
@ -108,15 +110,18 @@ func (a *APIInstaller) Install() ([]metav1.APIResource, *restful.WebService, []e
}
sort.Strings(paths)
for _, path := range paths {
apiResource, err := a.registerResourceHandlers(path, a.group.Storage[path], ws)
apiResource, resourceInfo, err := a.registerResourceHandlers(path, a.group.Storage[path], ws)
if err != nil {
errors = append(errors, fmt.Errorf("error in registering resource: %s, %v", path, err))
}
if apiResource != nil {
apiResources = append(apiResources, *apiResource)
}
if resourceInfo != nil {
resourceInfos = append(resourceInfos, resourceInfo)
}
}
return apiResources, ws, errors
return apiResources, resourceInfos, ws, errors
}
// newWebService creates a new restful webservice with the api installer's prefix and version.
@ -182,7 +187,7 @@ func GetResourceKind(groupVersion schema.GroupVersion, storage rest.Storage, typ
return fqKindToRegister, nil
}
func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storage, ws *restful.WebService) (*metav1.APIResource, error) {
func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storage, ws *restful.WebService) (*metav1.APIResource, *storageversion.ResourceInfo, error) {
admit := a.group.Admit
optionsExternalVersion := a.group.GroupVersion
@ -192,19 +197,19 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
resource, subresource, err := splitSubresource(path)
if err != nil {
return nil, err
return nil, nil, err
}
group, version := a.group.GroupVersion.Group, a.group.GroupVersion.Version
fqKindToRegister, err := GetResourceKind(a.group.GroupVersion, storage, a.group.Typer)
if err != nil {
return nil, err
return nil, nil, err
}
versionedPtr, err := a.group.Creater.New(fqKindToRegister)
if err != nil {
return nil, err
return nil, nil, err
}
defaultVersionedObject := indirectArbitraryPointer(versionedPtr)
kind := fqKindToRegister.Kind
@ -215,18 +220,18 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
if isSubresource {
parentStorage, ok := a.group.Storage[resource]
if !ok {
return nil, fmt.Errorf("missing parent storage: %q", resource)
return nil, nil, fmt.Errorf("missing parent storage: %q", resource)
}
scoper, ok := parentStorage.(rest.Scoper)
if !ok {
return nil, fmt.Errorf("%q must implement scoper", resource)
return nil, nil, fmt.Errorf("%q must implement scoper", resource)
}
namespaceScoped = scoper.NamespaceScoped()
} else {
scoper, ok := storage.(rest.Scoper)
if !ok {
return nil, fmt.Errorf("%q must implement scoper", resource)
return nil, nil, fmt.Errorf("%q must implement scoper", resource)
}
namespaceScoped = scoper.NamespaceScoped()
}
@ -255,7 +260,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
versionedExportOptions, err := a.group.Creater.New(optionsExternalVersion.WithKind("ExportOptions"))
if err != nil {
return nil, err
return nil, nil, err
}
if isNamedCreater {
@ -267,30 +272,30 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
list := lister.NewList()
listGVKs, _, err := a.group.Typer.ObjectKinds(list)
if err != nil {
return nil, err
return nil, nil, err
}
versionedListPtr, err := a.group.Creater.New(a.group.GroupVersion.WithKind(listGVKs[0].Kind))
if err != nil {
return nil, err
return nil, nil, err
}
versionedList = indirectArbitraryPointer(versionedListPtr)
}
versionedListOptions, err := a.group.Creater.New(optionsExternalVersion.WithKind("ListOptions"))
if err != nil {
return nil, err
return nil, nil, err
}
versionedCreateOptions, err := a.group.Creater.New(optionsExternalVersion.WithKind("CreateOptions"))
if err != nil {
return nil, err
return nil, nil, err
}
versionedPatchOptions, err := a.group.Creater.New(optionsExternalVersion.WithKind("PatchOptions"))
if err != nil {
return nil, err
return nil, nil, err
}
versionedUpdateOptions, err := a.group.Creater.New(optionsExternalVersion.WithKind("UpdateOptions"))
if err != nil {
return nil, err
return nil, nil, err
}
var versionedDeleteOptions runtime.Object
@ -299,7 +304,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
if isGracefulDeleter {
versionedDeleteOptions, err = a.group.Creater.New(optionsExternalVersion.WithKind("DeleteOptions"))
if err != nil {
return nil, err
return nil, nil, err
}
versionedDeleterObject = indirectArbitraryPointer(versionedDeleteOptions)
@ -310,7 +315,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
versionedStatusPtr, err := a.group.Creater.New(optionsExternalVersion.WithKind("Status"))
if err != nil {
return nil, err
return nil, nil, err
}
versionedStatus := indirectArbitraryPointer(versionedStatusPtr)
var (
@ -323,14 +328,14 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
getOptions, getSubpath, _ = getterWithOptions.NewGetOptions()
getOptionsInternalKinds, _, err := a.group.Typer.ObjectKinds(getOptions)
if err != nil {
return nil, err
return nil, nil, err
}
getOptionsInternalKind = getOptionsInternalKinds[0]
versionedGetOptions, err = a.group.Creater.New(a.group.GroupVersion.WithKind(getOptionsInternalKind.Kind))
if err != nil {
versionedGetOptions, err = a.group.Creater.New(optionsExternalVersion.WithKind(getOptionsInternalKind.Kind))
if err != nil {
return nil, err
return nil, nil, err
}
}
isGetter = true
@ -340,7 +345,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
if isWatcher {
versionedWatchEventPtr, err := a.group.Creater.New(a.group.GroupVersion.WithKind("WatchEvent"))
if err != nil {
return nil, err
return nil, nil, err
}
versionedWatchEvent = indirectArbitraryPointer(versionedWatchEventPtr)
}
@ -356,7 +361,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
if connectOptions != nil {
connectOptionsInternalKinds, _, err := a.group.Typer.ObjectKinds(connectOptions)
if err != nil {
return nil, err
return nil, nil, err
}
connectOptionsInternalKind = connectOptionsInternalKinds[0]
@ -364,7 +369,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
if err != nil {
versionedConnectOptions, err = a.group.Creater.New(optionsExternalVersion.WithKind(connectOptionsInternalKind.Kind))
if err != nil {
return nil, err
return nil, nil, err
}
}
}
@ -388,7 +393,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
tableProvider, isTableProvider := storage.(rest.TableConvertor)
if isLister && !isTableProvider {
// All listers must implement TableProvider
return nil, fmt.Errorf("%q must implement TableConvertor", resource)
return nil, nil, fmt.Errorf("%q must implement TableConvertor", resource)
}
var apiResource metav1.APIResource
@ -398,7 +403,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
versioner := storageVersionProvider.StorageVersion()
gvk, err := getStorageVersionKind(versioner, storage, a.group.Typer)
if err != nil {
return nil, err
return nil, nil, err
}
apiResource.StorageVersionHash = discovery.StorageVersionHash(gvk.Group, gvk.Version, gvk.Kind)
}
@ -506,6 +511,30 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
}
}
var resourceInfo *storageversion.ResourceInfo
if utilfeature.DefaultFeatureGate.Enabled(features.StorageVersionAPI) &&
utilfeature.DefaultFeatureGate.Enabled(features.APIServerIdentity) &&
isStorageVersionProvider &&
storageVersionProvider.StorageVersion() != nil {
versioner := storageVersionProvider.StorageVersion()
encodingGVK, err := getStorageVersionKind(versioner, storage, a.group.Typer)
if err != nil {
return nil, nil, err
}
resourceInfo = &storageversion.ResourceInfo{
GroupResource: schema.GroupResource{
Group: a.group.GroupVersion.Group,
Resource: apiResource.Name,
},
EncodingVersion: encodingGVK.GroupVersion().String(),
// We record EquivalentResourceMapper first instead of calculate
// DecodableVersions immediately because API installation must
// be completed first for us to know equivalent APIs
EquivalentResourceMapper: a.group.EquivalentResourceRegistry,
}
}
// Create Routes for the actions.
// TODO: Add status documentation using Returns()
// Errors (see api/errors/errors.go as well as go-restful router):
@ -525,7 +554,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
for _, s := range a.group.Serializer.SupportedMediaTypes() {
if len(s.MediaTypeSubType) == 0 || len(s.MediaTypeType) == 0 {
return nil, fmt.Errorf("all serializers in the group Serializer must have MediaTypeType and MediaTypeSubType set: %s", s.MediaType)
return nil, nil, fmt.Errorf("all serializers in the group Serializer must have MediaTypeType and MediaTypeSubType set: %s", s.MediaType)
}
}
mediaTypes, streamMediaTypes := negotiation.MediaTypesForSerializer(a.group.Serializer)
@ -573,7 +602,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
isSubresource,
)
if err != nil {
return nil, fmt.Errorf("failed to create field manager: %v", err)
return nil, nil, fmt.Errorf("failed to create field manager: %v", err)
}
}
for _, action := range actions {
@ -608,7 +637,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
kubeVerbs[kubeVerb] = struct{}{}
}
} else {
return nil, fmt.Errorf("unknown action verb for discovery: %s", action.Verb)
return nil, nil, fmt.Errorf("unknown action verb for discovery: %s", action.Verb)
}
routes := []*restful.RouteBuilder{}
@ -617,12 +646,12 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
if isSubresource {
parentStorage, ok := a.group.Storage[resource]
if !ok {
return nil, fmt.Errorf("missing parent storage: %q", resource)
return nil, nil, fmt.Errorf("missing parent storage: %q", resource)
}
fqParentKind, err := GetResourceKind(a.group.GroupVersion, parentStorage, a.group.Typer)
if err != nil {
return nil, err
return nil, nil, err
}
kind = fqParentKind.Kind
}
@ -681,12 +710,12 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
Writes(producedObject)
if isGetterWithOptions {
if err := AddObjectParams(ws, route, versionedGetOptions); err != nil {
return nil, err
return nil, nil, err
}
}
if isExporter {
if err := AddObjectParams(ws, route, versionedExportOptions); err != nil {
return nil, err
return nil, nil, err
}
}
addParams(route, action.Params)
@ -708,7 +737,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
Returns(http.StatusOK, "OK", versionedList).
Writes(versionedList)
if err := AddObjectParams(ws, route, versionedListOptions); err != nil {
return nil, err
return nil, nil, err
}
switch {
case isLister && isWatcher:
@ -747,7 +776,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
Reads(defaultVersionedObject).
Writes(producedObject)
if err := AddObjectParams(ws, route, versionedUpdateOptions); err != nil {
return nil, err
return nil, nil, err
}
addParams(route, action.Params)
routes = append(routes, route)
@ -778,7 +807,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
Reads(metav1.Patch{}).
Writes(producedObject)
if err := AddObjectParams(ws, route, versionedPatchOptions); err != nil {
return nil, err
return nil, nil, err
}
addParams(route, action.Params)
routes = append(routes, route)
@ -811,7 +840,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
Reads(defaultVersionedObject).
Writes(producedObject)
if err := AddObjectParams(ws, route, versionedCreateOptions); err != nil {
return nil, err
return nil, nil, err
}
addParams(route, action.Params)
routes = append(routes, route)
@ -841,7 +870,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
route.Reads(versionedDeleterObject)
route.ParameterNamed("body").Required(false)
if err := AddObjectParams(ws, route, versionedDeleteOptions); err != nil {
return nil, err
return nil, nil, err
}
}
addParams(route, action.Params)
@ -866,11 +895,11 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
route.Reads(versionedDeleterObject)
route.ParameterNamed("body").Required(false)
if err := AddObjectParams(ws, route, versionedDeleteOptions); err != nil {
return nil, err
return nil, nil, err
}
}
if err := AddObjectParams(ws, route, versionedListOptions, "watch", "allowWatchBookmarks"); err != nil {
return nil, err
return nil, nil, err
}
addParams(route, action.Params)
routes = append(routes, route)
@ -893,7 +922,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
Returns(http.StatusOK, "OK", versionedWatchEvent).
Writes(versionedWatchEvent)
if err := AddObjectParams(ws, route, versionedListOptions); err != nil {
return nil, err
return nil, nil, err
}
addParams(route, action.Params)
routes = append(routes, route)
@ -916,7 +945,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
Returns(http.StatusOK, "OK", versionedWatchEvent).
Writes(versionedWatchEvent)
if err := AddObjectParams(ws, route, versionedListOptions); err != nil {
return nil, err
return nil, nil, err
}
addParams(route, action.Params)
routes = append(routes, route)
@ -943,7 +972,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
Writes(connectProducedObject)
if versionedConnectOptions != nil {
if err := AddObjectParams(ws, route, versionedConnectOptions); err != nil {
return nil, err
return nil, nil, err
}
}
addParams(route, action.Params)
@ -957,7 +986,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
}
}
default:
return nil, fmt.Errorf("unrecognized action verb: %s", action.Verb)
return nil, nil, fmt.Errorf("unrecognized action verb: %s", action.Verb)
}
for _, route := range routes {
route.Metadata(ROUTE_META_GVK, metav1.GroupVersionKind{
@ -993,7 +1022,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
// Record the existence of the GVR and the corresponding GVK
a.group.EquivalentResourceRegistry.RegisterKindFor(reqScope.Resource, reqScope.Subresource, fqKindToRegister)
return &apiResource, nil
return &apiResource, resourceInfo, nil
}
// indirectArbitraryPointer returns *ptrToObject for an arbitrary pointer

7
staging/src/k8s.io/apiserver/pkg/features/kube_features.go
View File

@ -107,6 +107,12 @@ const (
// document.
StorageVersionHash featuregate.Feature = "StorageVersionHash"
// owner: @caesarxuchao @roycaihw
// alpha: v1.20
//
// Enable the storage version API.
StorageVersionAPI featuregate.Feature = "StorageVersionAPI"
// owner: @wojtek-t
// alpha: v1.15
// beta: v1.16
@ -173,6 +179,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
RemainingItemCount: {Default: true, PreRelease: featuregate.Beta},
ServerSideApply: {Default: true, PreRelease: featuregate.Beta},
StorageVersionHash: {Default: true, PreRelease: featuregate.Beta},
StorageVersionAPI: {Default: false, PreRelease: featuregate.Alpha},
WatchBookmark: {Default: true, PreRelease: featuregate.GA, LockToDefault: true},
APIPriorityAndFairness: {Default: false, PreRelease: featuregate.Alpha},
RemoveSelfLink: {Default: true, PreRelease: featuregate.Beta},

1
staging/src/k8s.io/apiserver/pkg/server/BUILD
View File

@ -117,6 +117,7 @@ go_library(
"//staging/src/k8s.io/apiserver/pkg/server/mux:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/server/routes:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/server/storage:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/storageversion:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/flowcontrol:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/openapi:go_default_library",

19
staging/src/k8s.io/apiserver/pkg/server/config.go
View File

@ -62,6 +62,7 @@ import (
"k8s.io/apiserver/pkg/server/healthz"
"k8s.io/apiserver/pkg/server/routes"
serverstore "k8s.io/apiserver/pkg/server/storage"
"k8s.io/apiserver/pkg/storageversion"
"k8s.io/apiserver/pkg/util/feature"
utilflowcontrol "k8s.io/apiserver/pkg/util/flowcontrol"
"k8s.io/client-go/informers"
@ -227,6 +228,9 @@ type Config struct {
// APIServerID is the ID of this API server
APIServerID string
// StorageVersionManager holds the storage versions of the API resources installed by this server.
StorageVersionManager storageversion.Manager
}
type RecommendedConfig struct {
@ -331,8 +335,9 @@ func NewConfig(codecs serializer.CodecFactory) *Config {
// Default to treating watch as a long-running operation
// Generic API servers have no inherent long-running subresources
LongRunningFunc: genericfilters.BasicLongRunningRequestCheck(sets.NewString("watch"), sets.NewString()),
APIServerID: id,
LongRunningFunc: genericfilters.BasicLongRunningRequestCheck(sets.NewString("watch"), sets.NewString()),
APIServerID: id,
StorageVersionManager: storageversion.NewDefaultManager(),
}
}
@ -582,7 +587,9 @@ func (c completedConfig) New(name string, delegationTarget DelegationTarget) (*G
maxRequestBodyBytes: c.MaxRequestBodyBytes,
livezClock: clock.RealClock{},
APIServerID: c.APIServerID,
APIServerID: c.APIServerID,
StorageVersionManager: c.StorageVersionManager,
}
for {
@ -703,6 +710,12 @@ func (c completedConfig) New(name string, delegationTarget DelegationTarget) (*G
return s, nil
}
func BuildHandlerChainWithStorageVersionPrecondition(apiHandler http.Handler, c *Config) http.Handler {
// WithStorageVersionPrecondition needs the WithRequestInfo to run first
handler := genericapifilters.WithStorageVersionPrecondition(apiHandler, c.StorageVersionManager, c.Serializer)
return DefaultBuildHandlerChain(handler, c)
}
func DefaultBuildHandlerChain(apiHandler http.Handler, c *Config) http.Handler {
handler := filterlatency.TrackCompleted(apiHandler)
handler = genericapifilters.WithAuthorization(handler, c.Authorization.Authorizer, c.Serializer)

17
staging/src/k8s.io/apiserver/pkg/server/genericapiserver.go
View File

@ -45,6 +45,7 @@ import (
"k8s.io/apiserver/pkg/registry/rest"
"k8s.io/apiserver/pkg/server/healthz"
"k8s.io/apiserver/pkg/server/routes"
"k8s.io/apiserver/pkg/storageversion"
utilfeature "k8s.io/apiserver/pkg/util/feature"
utilopenapi "k8s.io/apiserver/pkg/util/openapi"
restclient "k8s.io/client-go/rest"
@ -199,6 +200,9 @@ type GenericAPIServer struct {
// APIServerID is the ID of this API server
APIServerID string
// StorageVersionManager holds the storage versions of the API resources installed by this server.
StorageVersionManager storageversion.Manager
}
// DelegationTarget is an interface which allows for composition of API servers with top level handling that works
@ -409,6 +413,7 @@ func (s preparedGenericAPIServer) NonBlockingRun(stopCh <-chan struct{}) (<-chan
// installAPIResources is a private method for installing the REST storage backing each api groupversionresource
func (s *GenericAPIServer) installAPIResources(apiPrefix string, apiGroupInfo *APIGroupInfo, openAPIModels openapiproto.Models) error {
var resourceInfos []*storageversion.ResourceInfo
for _, groupVersion := range apiGroupInfo.PrioritizedVersions {
if len(apiGroupInfo.VersionedResourcesStorageMap[groupVersion.Version]) == 0 {
klog.Warningf("Skipping API %v because it has no resources.", groupVersion)
@ -431,9 +436,19 @@ func (s *GenericAPIServer) installAPIResources(apiPrefix string, apiGroupInfo *A
apiGroupVersion.MaxRequestBodyBytes = s.maxRequestBodyBytes
if err := apiGroupVersion.InstallREST(s.Handler.GoRestfulContainer); err != nil {
r, err := apiGroupVersion.InstallREST(s.Handler.GoRestfulContainer)
if err != nil {
return fmt.Errorf("unable to setup API %v: %v", apiGroupInfo, err)
}
resourceInfos = append(resourceInfos, r...)
}
if utilfeature.DefaultFeatureGate.Enabled(features.StorageVersionAPI) &&
utilfeature.DefaultFeatureGate.Enabled(features.APIServerIdentity) {
// API installation happens before we start listening on the handlers,
// therefore it is safe to register ResourceInfos here. The handler will block
// write requests until the storage versions of the targeting resources are updated.
s.StorageVersionManager.AddResourceInfo(resourceInfos...)
}
return nil

6
staging/src/k8s.io/apiserver/pkg/storageversion/BUILD
View File

@ -25,10 +25,14 @@ go_library(
go_test(
name = "go_default_test",
srcs = ["updater_test.go"],
srcs = [
"manager_test.go",
"updater_test.go",
],
embed = [":go_default_library"],
deps = [
"//staging/src/k8s.io/api/apiserverinternal/v1alpha1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
"//vendor/github.com/google/go-cmp/cmp:go_default_library",
],
)

72
staging/src/k8s.io/apiserver/pkg/storageversion/manager.go
View File

@ -18,6 +18,7 @@ package storageversion
import (
"fmt"
"sort"
"sync"
"sync/atomic"
@ -98,7 +99,10 @@ func (s *defaultManager) AddResourceInfo(resources ...*ResourceInfo) {
func (s *defaultManager) addPendingManagedStatusLocked(r *ResourceInfo) {
gvrs := r.EquivalentResourceMapper.EquivalentResourcesFor(r.GroupResource.WithVersion(""), "")
for _, gvr := range gvrs {
s.managedStatus[gvr.GroupResource()] = &updateStatus{}
gr := gvr.GroupResource()
if _, ok := s.managedStatus[gr]; !ok {
s.managedStatus[gr] = &updateStatus{}
}
}
}
@ -112,22 +116,37 @@ func (s *defaultManager) UpdateStorageVersions(kubeAPIServerClientConfig *rest.C
sc := clientset.InternalV1alpha1().StorageVersions()
s.mu.RLock()
resources := []*ResourceInfo{}
resources := []ResourceInfo{}
for resource := range s.managedResourceInfos {
resources = append(resources, resource)
resources = append(resources, *resource)
}
s.mu.RUnlock()
hasFailure := false
for _, r := range resources {
// Sorting the list to make sure we have a consistent dedup result, and
// therefore avoid creating unnecessarily duplicated StorageVersion objects.
// For example, extensions.ingresses and networking.k8s.io.ingresses share
// the same underlying storage. Without sorting, in an HA cluster, one
// apiserver may dedup and update StorageVersion for extensions.ingresses,
// while another apiserver may dedup and update StorageVersion for
// networking.k8s.io.ingresses. The storage migrator (which migrates objects
// per GroupResource) will migrate these resources twice, since both
// StorageVersion objects have CommonEncodingVersion (each with one server registered).
sortResourceInfosByGroupResource(resources)
for _, r := range dedupResourceInfos(resources) {
dv := decodableVersions(r.EquivalentResourceMapper, r.GroupResource)
if err := updateStorageVersionFor(sc, serverID, r.GroupResource, r.EncodingVersion, dv); err != nil {
gr := r.GroupResource
// Group must be a valid subdomain in DNS (RFC 1123)
if len(gr.Group) == 0 {
gr.Group = "core"
}
if err := updateStorageVersionFor(sc, serverID, gr, r.EncodingVersion, dv); err != nil {
utilruntime.HandleError(fmt.Errorf("failed to update storage version for %v: %v", r.GroupResource, err))
s.recordStatusFailure(r, err)
s.recordStatusFailure(&r, err)
hasFailure = true
continue
}
klog.V(2).Infof("successfully updated storage version for %v", r.GroupResource)
s.recordStatusSuccess(r)
s.recordStatusSuccess(&r)
}
if hasFailure {
return
@ -136,6 +155,45 @@ func (s *defaultManager) UpdateStorageVersions(kubeAPIServerClientConfig *rest.C
s.setComplete()
}
// dedupResourceInfos dedups ResourceInfos with the same underlying storage.
// ResourceInfos from the same Group with different Versions share the same underlying storage.
// ResourceInfos from different Groups may share the same underlying storage, e.g.
// networking.k8s.io ingresses and extensions ingresses. The StorageVersion manager
// only needs to update one StorageVersion for the equivalent Groups.
func dedupResourceInfos(infos []ResourceInfo) []ResourceInfo {
var ret []ResourceInfo
seen := make(map[schema.GroupResource]struct{})
for _, info := range infos {
gr := info.GroupResource
if _, ok := seen[gr]; ok {
continue
}
gvrs := info.EquivalentResourceMapper.EquivalentResourcesFor(gr.WithVersion(""), "")
for _, gvr := range gvrs {
seen[gvr.GroupResource()] = struct{}{}
}
ret = append(ret, info)
}
return ret
}
func sortResourceInfosByGroupResource(infos []ResourceInfo) {
sort.Sort(byGroupResource(infos))
}
type byGroupResource []ResourceInfo
func (s byGroupResource) Len() int { return len(s) }
func (s byGroupResource) Less(i, j int) bool {
if s[i].GroupResource.Group == s[j].GroupResource.Group {
return s[i].GroupResource.Resource < s[j].GroupResource.Resource
}
return s[i].GroupResource.Group < s[j].GroupResource.Group
}
func (s byGroupResource) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
// recordStatusSuccess marks updated ResourceInfo as completed.
func (s *defaultManager) recordStatusSuccess(r *ResourceInfo) {
s.mu.Lock()

62
staging/src/k8s.io/apiserver/pkg/storageversion/manager_test.go Normal file
View File

@ -0,0 +1,62 @@
/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package storageversion
import (
"reflect"
"testing"
"github.com/google/go-cmp/cmp"
"k8s.io/apimachinery/pkg/runtime/schema"
)
func TestSortResourceInfosByGroupResource(t *testing.T) {
tests := []struct {
infos []ResourceInfo
expected []ResourceInfo
}{
{
infos: nil,
expected: nil,
},
{
infos: []ResourceInfo{},
expected: []ResourceInfo{},
},
{
infos: []ResourceInfo{
{GroupResource: schema.GroupResource{Group: "", Resource: "pods"}},
{GroupResource: schema.GroupResource{Group: "", Resource: "nodes"}},
{GroupResource: schema.GroupResource{Group: "networking.k8s.io", Resource: "ingresses"}},
{GroupResource: schema.GroupResource{Group: "extensions", Resource: "ingresses"}},
},
expected: []ResourceInfo{
{GroupResource: schema.GroupResource{Group: "", Resource: "nodes"}},
{GroupResource: schema.GroupResource{Group: "", Resource: "pods"}},
{GroupResource: schema.GroupResource{Group: "extensions", Resource: "ingresses"}},
{GroupResource: schema.GroupResource{Group: "networking.k8s.io", Resource: "ingresses"}},
},
},
}
for _, tc := range tests {
sortResourceInfosByGroupResource(tc.infos)
if e, a := tc.expected, tc.infos; !reflect.DeepEqual(e, a) {
t.Errorf("unexpected: %v", cmp.Diff(e, a))
}
}
}

12
staging/src/k8s.io/apiserver/pkg/storageversion/updater.go
View File

@ -31,7 +31,7 @@ import (
// Client has the methods required to update the storage version.
type Client interface {
Create(context.Context, *v1alpha1.StorageVersion, metav1.CreateOptions) (*v1alpha1.StorageVersion, error)
Update(context.Context, *v1alpha1.StorageVersion, metav1.UpdateOptions) (*v1alpha1.StorageVersion, error)
UpdateStatus(context.Context, *v1alpha1.StorageVersion, metav1.UpdateOptions) (*v1alpha1.StorageVersion, error)
Get(context.Context, string, metav1.GetOptions) (*v1alpha1.StorageVersion, error)
}
@ -91,10 +91,16 @@ func singleUpdate(c Client, apiserverID string, gr schema.GroupResource, encodin
}
updatedSV := localUpdateStorageVersion(sv, apiserverID, encodingVersion, decodableVersions)
if shouldCreate {
_, err := c.Create(context.TODO(), updatedSV, metav1.CreateOptions{})
createdSV, err := c.Create(context.TODO(), updatedSV, metav1.CreateOptions{})
if err != nil {
return err
}
// assign the calculated status to the object just created, then update status
createdSV.Status = updatedSV.Status
_, err = c.UpdateStatus(context.TODO(), createdSV, metav1.UpdateOptions{})
return err
}
_, err = c.Update(context.TODO(), updatedSV, metav1.UpdateOptions{})
_, err = c.UpdateStatus(context.TODO(), updatedSV, metav1.UpdateOptions{})
return err
}

32
staging/src/k8s.io/kube-aggregator/pkg/apiserver/apiserver.go
View File

@ -24,9 +24,12 @@ import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/wait"
genericfeatures "k8s.io/apiserver/pkg/features"
genericapiserver "k8s.io/apiserver/pkg/server"
"k8s.io/apiserver/pkg/server/egressselector"
serverstorage "k8s.io/apiserver/pkg/server/storage"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/client-go/pkg/version"
openapicommon "k8s.io/kube-openapi/pkg/common"
@ -264,6 +267,35 @@ func (c completedConfig) NewWithDelegate(delegationTarget genericapiserver.Deleg
return nil
})
if utilfeature.DefaultFeatureGate.Enabled(genericfeatures.StorageVersionAPI) &&
utilfeature.DefaultFeatureGate.Enabled(genericfeatures.APIServerIdentity) {
// Spawn a goroutine in aggregator apiserver to update storage version for
// all built-in resources
s.GenericAPIServer.AddPostStartHookOrDie("built-in-resources-storage-version-updater", func(context genericapiserver.PostStartHookContext) error {
// Technically an apiserver only needs to update storage version once during bootstrap.
// Reconcile StorageVersion objects every 10 minutes will help in the case that the
// StorageVersion objects get accidentally modified/deleted by a different agent. In that
// case, the reconciliation ensures future storage migration still works. If nothing gets
// changed, the reconciliation update is a noop and gets short-circuited by the apiserver,
// therefore won't change the resource version and trigger storage migration.
go wait.PollImmediateUntil(10*time.Minute, func() (bool, error) {
// All apiservers (aggregator-apiserver, kube-apiserver, apiextensions-apiserver)
// share the same generic apiserver config. The same StorageVersion manager is used
// to register all built-in resources when the generic apiservers install APIs.
s.GenericAPIServer.StorageVersionManager.UpdateStorageVersions(context.LoopbackClientConfig, s.GenericAPIServer.APIServerID)
return false, nil
}, context.StopCh)
// Once the storage version updater finishes the first round of update,
// the PostStartHook will return to unblock /healthz. The handler chain
// won't block write requests anymore. Check every second since it's not
// expensive.
wait.PollImmediateUntil(1*time.Second, func() (bool, error) {
return s.GenericAPIServer.StorageVersionManager.Completed(), nil
}, context.StopCh)
return nil
})
}
return s, nil
}

1
test/integration/BUILD
View File

@ -79,6 +79,7 @@ filegroup(
"//test/integration/serving:all-srcs",
"//test/integration/statefulset:all-srcs",
"//test/integration/storageclasses:all-srcs",
"//test/integration/storageversion:all-srcs",
"//test/integration/tls:all-srcs",
"//test/integration/ttlcontroller:all-srcs",
"//test/integration/util:all-srcs",

47
test/integration/storageversion/BUILD Normal file
View File

@ -0,0 +1,47 @@
load("@io_bazel_rules_go//go:def.bzl", "go_test")
go_test(
name = "go_default_test",
srcs = [
"storage_version_filter_test.go",
"storage_version_main_test.go",
],
tags = ["integration"],
deps = [
"//cmd/kube-apiserver/app/testing:go_default_library",
"//staging/src/k8s.io/api/apiserverinternal/v1alpha1:go_default_library",
"//staging/src/k8s.io/api/authentication/v1:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/wait:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/features:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/storageversion:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
"//staging/src/k8s.io/client-go/dynamic:go_default_library",
"//staging/src/k8s.io/client-go/kubernetes:go_default_library",
"//staging/src/k8s.io/client-go/rest:go_default_library",
"//staging/src/k8s.io/component-base/featuregate/testing:go_default_library",
"//staging/src/k8s.io/kube-aggregator/pkg/apis/apiregistration/v1beta1:go_default_library",
"//staging/src/k8s.io/kube-aggregator/pkg/client/clientset_generated/clientset:go_default_library",
"//test/integration/etcd:go_default_library",
"//test/integration/framework:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
visibility = ["//visibility:public"],
)

255
test/integration/storageversion/storage_version_filter_test.go Normal file
View File

@ -0,0 +1,255 @@
/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package storageversion
import (
"context"
"testing"
"time"
"k8s.io/api/apiserverinternal/v1alpha1"
authenticationv1 "k8s.io/api/authentication/v1"
v1 "k8s.io/api/core/v1"
apiextensionsclientset "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/apiserver/pkg/features"
"k8s.io/apiserver/pkg/storageversion"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/client-go/dynamic"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
featuregatetesting "k8s.io/component-base/featuregate/testing"
apiregistrationv1beta1 "k8s.io/kube-aggregator/pkg/apis/apiregistration/v1beta1"
aggregatorclient "k8s.io/kube-aggregator/pkg/client/clientset_generated/clientset"
kubeapiservertesting "k8s.io/kubernetes/cmd/kube-apiserver/app/testing"
"k8s.io/kubernetes/test/integration/etcd"
"k8s.io/kubernetes/test/integration/framework"
)
type wrappedStorageVersionManager struct {
storageversion.Manager
startUpdateSV <-chan struct{}
updateFinished chan<- struct{}
finishUpdateSV <-chan struct{}
completed <-chan struct{}
}
func (w *wrappedStorageVersionManager) UpdateStorageVersions(loopbackClientConfig *rest.Config, serverID string) {
<-w.startUpdateSV
w.Manager.UpdateStorageVersions(loopbackClientConfig, serverID)
close(w.updateFinished)
<-w.finishUpdateSV
}
func (w *wrappedStorageVersionManager) Completed() bool {
select {
case <-w.completed:
return true
default:
return false
}
}
func assertBlocking(name string, t *testing.T, err error, shouldBlock bool) {
if shouldBlock {
if err == nil || !errors.IsServiceUnavailable(err) {
t.Fatalf("%q should be rejected with service unavailable error, got %v", name, err)
}
} else {
if err != nil {
t.Fatalf("%q should be allowed, got %v", name, err)
}
}
}
func testBuiltinResourceWrite(t *testing.T, cfg *rest.Config, shouldBlock bool) {
client := clientset.NewForConfigOrDie(cfg)
_, err := client.CoreV1().Namespaces().Create(context.TODO(), &v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: "test"}}, metav1.CreateOptions{})
assertBlocking("writes to built in resources", t, err, shouldBlock)
}
func testCRDWrite(t *testing.T, cfg *rest.Config, shouldBlock bool) {
crdClient := apiextensionsclientset.NewForConfigOrDie(cfg)
_, err := crdClient.ApiextensionsV1beta1().CustomResourceDefinitions().Create(context.TODO(), etcd.GetCustomResourceDefinitionData()[1], metav1.CreateOptions{})
assertBlocking("writes to CRD", t, err, shouldBlock)
}
func testAPIServiceWrite(t *testing.T, cfg *rest.Config, shouldBlock bool) {
aggregatorClient := aggregatorclient.NewForConfigOrDie(cfg)
_, err := aggregatorClient.ApiregistrationV1beta1().APIServices().Create(context.TODO(), &apiregistrationv1beta1.APIService{
ObjectMeta: metav1.ObjectMeta{Name: "v1alpha1.wardle.example.com"},
Spec: apiregistrationv1beta1.APIServiceSpec{
Service: &apiregistrationv1beta1.ServiceReference{
Namespace: "kube-wardle",
Name: "api",
},
Group: "wardle.example.com",
Version: "v1alpha1",
GroupPriorityMinimum: 200,
VersionPriority: 200,
},
}, metav1.CreateOptions{})
assertBlocking("writes to APIServices", t, err, shouldBlock)
}
func testCRWrite(t *testing.T, cfg *rest.Config, shouldBlock bool) {
dynamicClient := dynamic.NewForConfigOrDie(cfg)
crclient := dynamicClient.Resource(schema.GroupVersionResource{Group: "cr.bar.com", Version: "v1", Resource: "foos"}).Namespace("default")
_, err := crclient.Create(context.TODO(), &unstructured.Unstructured{Object: map[string]interface{}{"apiVersion": "cr.bar.com/v1", "kind": "Foo", "metadata": map[string]interface{}{"generateName": "test-"}}}, metav1.CreateOptions{})
assertBlocking("writes to CR", t, err, shouldBlock)
}
func testStorageVersionWrite(t *testing.T, cfg *rest.Config, shouldBlock bool) {
apiserverClient := clientset.NewForConfigOrDie(cfg)
_, err := apiserverClient.InternalV1alpha1().StorageVersions().Create(context.TODO(), &v1alpha1.StorageVersion{ObjectMeta: metav1.ObjectMeta{GenerateName: "test.resource"}}, metav1.CreateOptions{})
assertBlocking("writes to Storage Version", t, err, shouldBlock)
}
func testNonPersistedWrite(t *testing.T, cfg *rest.Config, shouldBlock bool) {
client := clientset.NewForConfigOrDie(cfg)
_, err := client.AuthenticationV1().TokenReviews().Create(context.TODO(), &authenticationv1.TokenReview{
Spec: authenticationv1.TokenReviewSpec{
Token: "some token",
},
}, metav1.CreateOptions{})
assertBlocking("non-persisted write", t, err, shouldBlock)
}
func testBuiltinResourceRead(t *testing.T, cfg *rest.Config, shouldBlock bool) {
client := clientset.NewForConfigOrDie(cfg)
_, err := client.CoreV1().Namespaces().List(context.TODO(), metav1.ListOptions{})
assertBlocking("reads of built-in resources", t, err, shouldBlock)
}
// TestStorageVersionBootstrap ensures that before the StorageVersions are
// updated, only the following the request are accepted by the apiserver:
// 1. read requests
// 2. non-persisting write requests
// 3. write requests to the storageversion API
// 4. requests to CR or aggregated API
func TestStorageVersionBootstrap(t *testing.T) {
// Start server and create CRD
etcdConfig := framework.SharedEtcd()
server := kubeapiservertesting.StartTestServerOrDie(t, nil, nil, etcdConfig)
etcd.CreateTestCRDs(t, apiextensionsclientset.NewForConfigOrDie(server.ClientConfig), false, etcd.GetCustomResourceDefinitionData()[0])
server.TearDownFn()
startUpdateSV := make(chan struct{})
finishUpdateSV := make(chan struct{})
updateFinished := make(chan struct{})
completed := make(chan struct{})
wrapperFunc := func(delegate storageversion.Manager) storageversion.Manager {
return &wrappedStorageVersionManager{
startUpdateSV: startUpdateSV,
finishUpdateSV: finishUpdateSV,
updateFinished: updateFinished,
completed: completed,
Manager: delegate,
}
}
// Restart api server, enable the storage version API and the feature gates.
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.StorageVersionAPI, true)()
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.APIServerIdentity, true)()
server = kubeapiservertesting.StartTestServerOrDie(t,
&kubeapiservertesting.TestServerInstanceOptions{
StorageVersionWrapFunc: wrapperFunc,
},
[]string{
// force enable all resources to ensure that the storage updates can handle cross group resources.
// TODO: drop these once we stop allowing them to be served.
"--runtime-config=api/all=true,extensions/v1beta1/deployments=true,extensions/v1beta1/daemonsets=true,extensions/v1beta1/replicasets=true,extensions/v1beta1/podsecuritypolicies=true,extensions/v1beta1/networkpolicies=true,internal.apiserver.k8s.io/v1alpha1=true",
},
etcdConfig)
defer server.TearDownFn()
cfg := rest.CopyConfig(server.ClientConfig)
t.Run("before storage version update", func(t *testing.T) {
t.Run("write to k8s native API object should be blocked", func(t *testing.T) {
testBuiltinResourceWrite(t, cfg, true)
})
t.Run("write to CRD should be blocked", func(t *testing.T) {
testCRDWrite(t, cfg, true)
})
t.Run("write to APIService should be blocked", func(t *testing.T) {
testAPIServiceWrite(t, cfg, true)
})
t.Run("write to CR should pass", func(t *testing.T) {
testCRWrite(t, cfg, false)
})
t.Run("write to the storage version API should pass", func(t *testing.T) {
testStorageVersionWrite(t, cfg, false)
})
t.Run("write to non-persisted API should pass", func(t *testing.T) {
testNonPersistedWrite(t, cfg, false)
})
t.Run("read of k8s native API should pass", func(t *testing.T) {
testBuiltinResourceRead(t, cfg, false)
})
// TODO: Write to aggregated API should pass.
})
// After the storage versions are updated, even though the
// StorageVersionManager.Complete() still returns false, the filter
// should not block any request.
close(startUpdateSV)
<-updateFinished
t.Run("after storage version update", func(t *testing.T) {
t.Run("write to k8s native API object should pass", func(t *testing.T) {
testBuiltinResourceWrite(t, cfg, false)
})
t.Run("write to CRD should pass", func(t *testing.T) {
testCRDWrite(t, cfg, false)
})
t.Run("write to APIService should pass", func(t *testing.T) {
testAPIServiceWrite(t, cfg, false)
})
t.Run("write to the storage version API should pass", func(t *testing.T) {
testStorageVersionWrite(t, cfg, false)
})
t.Run("write to non-persisted API should pass", func(t *testing.T) {
testNonPersistedWrite(t, cfg, false)
})
t.Run("read of k8s native API should pass", func(t *testing.T) {
testBuiltinResourceRead(t, cfg, false)
})
})
// After the StorageVersionManager.Complete() returns true, the server should become healthy.
close(completed)
close(finishUpdateSV)
t.Run("after storage version manager complete", func(t *testing.T) {
// wait until healthz endpoint returns ok
client := clientset.NewForConfigOrDie(cfg)
err := wait.Poll(100*time.Millisecond, 10*time.Second, func() (bool, error) {
result := client.CoreV1().RESTClient().Get().AbsPath("/healthz").Do(context.TODO())
status := 0
result.StatusCode(&status)
if status == 200 {
return true, nil
}
return false, nil
})
if err != nil {
t.Errorf("failed to wait for /healthz to return ok: %v", err)
}
})
}

27
test/integration/storageversion/storage_version_main_test.go Normal file
View File

@ -0,0 +1,27 @@
/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package storageversion
import (
"testing"
"k8s.io/kubernetes/test/integration/framework"
)
func TestMain(m *testing.M) {
framework.EtcdMain(m.Run)
}

1
vendor/modules.txt vendored
View File

@ -1860,6 +1860,7 @@ k8s.io/apiserver/pkg/storage/value/encrypt/envelope/testing
k8s.io/apiserver/pkg/storage/value/encrypt/envelope/v1beta1
k8s.io/apiserver/pkg/storage/value/encrypt/identity
k8s.io/apiserver/pkg/storage/value/encrypt/secretbox
k8s.io/apiserver/pkg/storageversion
k8s.io/apiserver/pkg/util/apihelpers
k8s.io/apiserver/pkg/util/dryrun
k8s.io/apiserver/pkg/util/feature