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aggregator: split API priority map into generic and non-generic

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Signed-off-by: Dr. Stefan Schimanski <stefan.schimanski@gmail.com>
This commit is contained in:
Dr. Stefan Schimanski 2024-04-29 15:55:53 +02:00
parent a9eded097d
commit 03ae7fcbdf
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GPG Key ID: 4C68E0F19F95EC33
2 changed files with 104 additions and 60 deletions
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91
cmd/kube-apiserver/app/aggregator.go
View File

@ -48,13 +48,14 @@ import (
apiregistrationclient "k8s.io/kube-aggregator/pkg/client/clientset_generated/clientset/typed/apiregistration/v1" apiregistrationclient "k8s.io/kube-aggregator/pkg/client/clientset_generated/clientset/typed/apiregistration/v1"
informers "k8s.io/kube-aggregator/pkg/client/informers/externalversions/apiregistration/v1" informers "k8s.io/kube-aggregator/pkg/client/informers/externalversions/apiregistration/v1"
"k8s.io/kube-aggregator/pkg/controllers/autoregister" "k8s.io/kube-aggregator/pkg/controllers/autoregister"
controlplaneapiserver "k8s.io/kubernetes/pkg/controlplane/apiserver/options" controlplaneapiserver "k8s.io/kubernetes/pkg/controlplane/apiserver"
controlplaneapiserveroptions "k8s.io/kubernetes/pkg/controlplane/apiserver/options"
"k8s.io/kubernetes/pkg/controlplane/controller/crdregistration" "k8s.io/kubernetes/pkg/controlplane/controller/crdregistration"
) )
func createAggregatorConfig( func createAggregatorConfig(
kubeAPIServerConfig genericapiserver.Config, kubeAPIServerConfig genericapiserver.Config,
commandOptions controlplaneapiserver.CompletedOptions, commandOptions controlplaneapiserveroptions.CompletedOptions,
externalInformers kubeexternalinformers.SharedInformerFactory, externalInformers kubeexternalinformers.SharedInformerFactory,
serviceResolver aggregatorapiserver.ServiceResolver, serviceResolver aggregatorapiserver.ServiceResolver,
proxyTransport *http.Transport, proxyTransport *http.Transport,
@ -156,7 +157,7 @@ func createAggregatorServer(aggregatorConfig aggregatorapiserver.CompletedConfig
// Imbue all builtin group-priorities onto the aggregated discovery // Imbue all builtin group-priorities onto the aggregated discovery
if aggregatorConfig.GenericConfig.AggregatedDiscoveryGroupManager != nil { if aggregatorConfig.GenericConfig.AggregatedDiscoveryGroupManager != nil {
for gv, entry := range apiVersionPriorities { for gv, entry := range apiVersionPriorities {
aggregatorConfig.GenericConfig.AggregatedDiscoveryGroupManager.SetGroupVersionPriority(metav1.GroupVersion(gv), int(entry.group), int(entry.version)) aggregatorConfig.GenericConfig.AggregatedDiscoveryGroupManager.SetGroupVersionPriority(metav1.GroupVersion(gv), int(entry.Group), int(entry.Version))
} }
} }
@ -210,8 +211,8 @@ func makeAPIService(gv schema.GroupVersion) *v1.APIService {
Spec: v1.APIServiceSpec{ Spec: v1.APIServiceSpec{
Group: gv.Group, Group: gv.Group,
Version: gv.Version, Version: gv.Version,
GroupPriorityMinimum: apiServicePriority.group, GroupPriorityMinimum: apiServicePriority.Group,
VersionPriority: apiServicePriority.version, VersionPriority: apiServicePriority.Version,
}, },
} }
} }
@ -255,69 +256,32 @@ func makeAPIServiceAvailableHealthCheck(name string, apiServices []*v1.APIServic
}) })
} }
// priority defines group priority that is used in discovery. This controls
// group position in the kubectl output.
type priority struct {
// group indicates the order of the group relative to other groups.
group int32
// version indicates the relative order of the version inside of its group.
version int32
}
// The proper way to resolve this letting the aggregator know the desired group and version-within-group order of the underlying servers // The proper way to resolve this letting the aggregator know the desired group and version-within-group order of the underlying servers
// is to refactor the genericapiserver.DelegationTarget to include a list of priorities based on which APIs were installed. // is to refactor the genericapiserver.DelegationTarget to include a list of priorities based on which APIs were installed.
// This requires the APIGroupInfo struct to evolve and include the concept of priorities and to avoid mistakes, the core storage map there needs to be updated. // This requires the APIGroupInfo struct to evolve and include the concept of priorities and to avoid mistakes, the core storage map there needs to be updated.
// That ripples out every bit as far as you'd expect, so for 1.7 we'll include the list here instead of being built up during storage. // That ripples out every bit as far as you'd expect, so for 1.7 we'll include the list here instead of being built up during storage.
var apiVersionPriorities = map[schema.GroupVersion]priority{ var apiVersionPriorities = merge(controlplaneapiserver.DefaultGenericAPIServicePriorities(), map[schema.GroupVersion]controlplaneapiserver.APIServicePriority{
{Group: "", Version: "v1"}: {group: 18000, version: 1}, {Group: "", Version: "v1"}: {Group: 18000, Version: 1},
// to my knowledge, nothing below here collides // to my knowledge, nothing below here collides
{Group: "apps", Version: "v1"}: {group: 17800, version: 15}, {Group: "apps", Version: "v1"}: {Group: 17800, Version: 15},
{Group: "events.k8s.io", Version: "v1"}: {group: 17750, version: 15}, {Group: "batch", Version: "v1"}: {Group: 17400, Version: 15},
{Group: "events.k8s.io", Version: "v1beta1"}: {group: 17750, version: 5}, {Group: "batch", Version: "v1beta1"}: {Group: 17400, Version: 9},
{Group: "authentication.k8s.io", Version: "v1"}: {group: 17700, version: 15}, {Group: "batch", Version: "v2alpha1"}: {Group: 17400, Version: 9},
{Group: "authentication.k8s.io", Version: "v1beta1"}: {group: 17700, version: 9}, {Group: "networking.k8s.io", Version: "v1"}: {Group: 17200, Version: 15},
{Group: "authentication.k8s.io", Version: "v1alpha1"}: {group: 17700, version: 1}, {Group: "networking.k8s.io", Version: "v1alpha1"}: {Group: 17200, Version: 1},
{Group: "authorization.k8s.io", Version: "v1"}: {group: 17600, version: 15}, {Group: "policy", Version: "v1"}: {Group: 17100, Version: 15},
{Group: "autoscaling", Version: "v1"}: {group: 17500, version: 15}, {Group: "policy", Version: "v1beta1"}: {Group: 17100, Version: 9},
{Group: "autoscaling", Version: "v2"}: {group: 17500, version: 30}, {Group: "storage.k8s.io", Version: "v1"}: {Group: 16800, Version: 15},
{Group: "autoscaling", Version: "v2beta1"}: {group: 17500, version: 9}, {Group: "storage.k8s.io", Version: "v1beta1"}: {Group: 16800, Version: 9},
{Group: "autoscaling", Version: "v2beta2"}: {group: 17500, version: 1}, {Group: "storage.k8s.io", Version: "v1alpha1"}: {Group: 16800, Version: 1},
{Group: "batch", Version: "v1"}: {group: 17400, version: 15}, {Group: "scheduling.k8s.io", Version: "v1"}: {Group: 16600, Version: 15},
{Group: "batch", Version: "v1beta1"}: {group: 17400, version: 9}, {Group: "node.k8s.io", Version: "v1"}: {Group: 16300, Version: 15},
{Group: "batch", Version: "v2alpha1"}: {group: 17400, version: 9}, {Group: "node.k8s.io", Version: "v1alpha1"}: {Group: 16300, Version: 1},
{Group: "certificates.k8s.io", Version: "v1"}: {group: 17300, version: 15}, {Group: "node.k8s.io", Version: "v1beta1"}: {Group: 16300, Version: 9},
{Group: "certificates.k8s.io", Version: "v1alpha1"}: {group: 17300, version: 1},
{Group: "networking.k8s.io", Version: "v1"}: {group: 17200, version: 15},
{Group: "networking.k8s.io", Version: "v1alpha1"}: {group: 17200, version: 1},
{Group: "policy", Version: "v1"}: {group: 17100, version: 15},
{Group: "policy", Version: "v1beta1"}: {group: 17100, version: 9},
{Group: "rbac.authorization.k8s.io", Version: "v1"}: {group: 17000, version: 15},
{Group: "storage.k8s.io", Version: "v1"}: {group: 16800, version: 15},
{Group: "storage.k8s.io", Version: "v1beta1"}: {group: 16800, version: 9},
{Group: "storage.k8s.io", Version: "v1alpha1"}: {group: 16800, version: 1},
{Group: "apiextensions.k8s.io", Version: "v1"}: {group: 16700, version: 15},
{Group: "admissionregistration.k8s.io", Version: "v1"}: {group: 16700, version: 15},
{Group: "admissionregistration.k8s.io", Version: "v1beta1"}: {group: 16700, version: 12},
{Group: "admissionregistration.k8s.io", Version: "v1alpha1"}: {group: 16700, version: 9},
{Group: "scheduling.k8s.io", Version: "v1"}: {group: 16600, version: 15},
{Group: "coordination.k8s.io", Version: "v1"}: {group: 16500, version: 15},
{Group: "node.k8s.io", Version: "v1"}: {group: 16300, version: 15},
{Group: "node.k8s.io", Version: "v1alpha1"}: {group: 16300, version: 1},
{Group: "node.k8s.io", Version: "v1beta1"}: {group: 16300, version: 9},
{Group: "discovery.k8s.io", Version: "v1"}: {group: 16200, version: 15},
{Group: "discovery.k8s.io", Version: "v1beta1"}: {group: 16200, version: 12},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1"}: {group: 16100, version: 21},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1beta3"}: {group: 16100, version: 18},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1beta2"}: {group: 16100, version: 15},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1beta1"}: {group: 16100, version: 12},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1alpha1"}: {group: 16100, version: 9},
{Group: "internal.apiserver.k8s.io", Version: "v1alpha1"}: {group: 16000, version: 9},
{Group: "resource.k8s.io", Version: "v1alpha2"}: {group: 15900, version: 9},
{Group: "storagemigration.k8s.io", Version: "v1alpha1"}: {group: 15800, version: 9},
// Append a new group to the end of the list if unsure. // Append a new group to the end of the list if unsure.
// You can use min(existing group)-100 as the initial value for a group. // You can use min(existing group)-100 as the initial value for a group.
// Version can be set to 9 (to have space around) for a new group. // Version can be set to 9 (to have space around) for a new group.
} })
func apiServicesToRegister(delegateAPIServer genericapiserver.DelegationTarget, registration autoregister.AutoAPIServiceRegistration) []*v1.APIService { func apiServicesToRegister(delegateAPIServer genericapiserver.DelegationTarget, registration autoregister.AutoAPIServiceRegistration) []*v1.APIService {
apiServices := []*v1.APIService{} apiServices := []*v1.APIService{}
@ -349,3 +313,10 @@ func apiServicesToRegister(delegateAPIServer genericapiserver.DelegationTarget,
return apiServices return apiServices
} }
func merge(a, b map[schema.GroupVersion]controlplaneapiserver.APIServicePriority) map[schema.GroupVersion]controlplaneapiserver.APIServicePriority {
for k, v := range b {
a[k] = v
}
return a
}

73
pkg/controlplane/apiserver/aggregator.go Normal file
View File

@ -0,0 +1,73 @@
/*
Copyright 2024 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 apiserver
import (
"k8s.io/apimachinery/pkg/runtime/schema"
)
// APIServicePriority defines group priority that is used in discovery. This controls
// group position in the kubectl output.
type APIServicePriority struct {
// Group indicates the order of the group relative to other groups.
Group int32
// Version indicates the relative order of the Version inside of its group.
Version int32
}
// DefaultGenericAPIServicePriorities returns the APIService priorities for generic APIs
func DefaultGenericAPIServicePriorities() map[schema.GroupVersion]APIServicePriority {
// The proper way to resolve this letting the aggregator know the desired group and version-within-group order of the underlying servers
// is to refactor the genericapiserver.DelegationTarget to include a list of priorities based on which APIs were installed.
// This requires the APIGroupInfo struct to evolve and include the concept of priorities and to avoid mistakes, the core storage map there needs to be updated.
// That ripples out every bit as far as you'd expect, so for 1.7 we'll include the list here instead of being built up during storage.
return map[schema.GroupVersion]APIServicePriority{
{Group: "", Version: "v1"}: {Group: 18000, Version: 1},
// to my knowledge, nothing below here collides
{Group: "events.k8s.io", Version: "v1"}: {Group: 17750, Version: 15},
{Group: "events.k8s.io", Version: "v1beta1"}: {Group: 17750, Version: 5},
{Group: "authentication.k8s.io", Version: "v1"}: {Group: 17700, Version: 15},
{Group: "authentication.k8s.io", Version: "v1beta1"}: {Group: 17700, Version: 9},
{Group: "authentication.k8s.io", Version: "v1alpha1"}: {Group: 17700, Version: 1},
{Group: "authorization.k8s.io", Version: "v1"}: {Group: 17600, Version: 15},
{Group: "autoscaling", Version: "v1"}: {Group: 17500, Version: 15},
{Group: "autoscaling", Version: "v2"}: {Group: 17500, Version: 30},
{Group: "autoscaling", Version: "v2beta1"}: {Group: 17500, Version: 9},
{Group: "autoscaling", Version: "v2beta2"}: {Group: 17500, Version: 1},
{Group: "certificates.k8s.io", Version: "v1"}: {Group: 17300, Version: 15},
{Group: "certificates.k8s.io", Version: "v1alpha1"}: {Group: 17300, Version: 1},
{Group: "rbac.authorization.k8s.io", Version: "v1"}: {Group: 17000, Version: 15},
{Group: "apiextensions.k8s.io", Version: "v1"}: {Group: 16700, Version: 15},
{Group: "admissionregistration.k8s.io", Version: "v1"}: {Group: 16700, Version: 15},
{Group: "admissionregistration.k8s.io", Version: "v1beta1"}: {Group: 16700, Version: 12},
{Group: "admissionregistration.k8s.io", Version: "v1alpha1"}: {Group: 16700, Version: 9},
{Group: "coordination.k8s.io", Version: "v1"}: {Group: 16500, Version: 15},
{Group: "discovery.k8s.io", Version: "v1"}: {Group: 16200, Version: 15},
{Group: "discovery.k8s.io", Version: "v1beta1"}: {Group: 16200, Version: 12},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1"}: {Group: 16100, Version: 21},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1beta3"}: {Group: 16100, Version: 18},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1beta2"}: {Group: 16100, Version: 15},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1beta1"}: {Group: 16100, Version: 12},
{Group: "flowcontrol.apiserver.k8s.io", Version: "v1alpha1"}: {Group: 16100, Version: 9},
{Group: "internal.apiserver.k8s.io", Version: "v1alpha1"}: {Group: 16000, Version: 9},
{Group: "resource.k8s.io", Version: "v1alpha2"}: {Group: 15900, Version: 9},
{Group: "storagemigration.k8s.io", Version: "v1alpha1"}: {Group: 15800, Version: 9},
// Append a new group to the end of the list if unsure.
// You can use min(existing group)-100 as the initial value for a group.
// Version can be set to 9 (to have space around) for a new group.
}
}