233 lines
9.7 KiB
Go
233 lines
9.7 KiB
Go
/*
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Copyright 2023 The Karmada Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package apiservice
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import (
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"fmt"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/runtime/serializer"
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utilruntime "k8s.io/apimachinery/pkg/util/runtime"
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clientset "k8s.io/client-go/kubernetes"
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clientsetscheme "k8s.io/client-go/kubernetes/scheme"
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apiregistrationv1 "k8s.io/kube-aggregator/pkg/apis/apiregistration/v1"
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aggregator "k8s.io/kube-aggregator/pkg/client/clientset_generated/clientset"
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"github.com/karmada-io/karmada/operator/pkg/constants"
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"github.com/karmada-io/karmada/operator/pkg/util"
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"github.com/karmada-io/karmada/operator/pkg/util/apiclient"
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)
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var (
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scheme = runtime.NewScheme()
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codecs = serializer.NewCodecFactory(scheme)
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)
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func init() {
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metav1.AddToGroupVersion(scheme, schema.GroupVersion{Version: "v1"})
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utilruntime.Must(apiregistrationv1.AddToScheme(scheme))
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}
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// EnsureAggregatedAPIService creates aggregated APIService and a service
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func EnsureAggregatedAPIService(aggregatorClient *aggregator.Clientset, client clientset.Interface, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, hostClusterServiceName, hostClusterNamespace, caBundle string) error {
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if err := aggregatedApiserverService(client, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, hostClusterServiceName, hostClusterNamespace); err != nil {
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return err
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}
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return aggregatedAPIService(aggregatorClient, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, caBundle)
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}
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func aggregatedAPIService(client *aggregator.Clientset, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, caBundle string) error {
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apiServiceBytes, err := util.ParseTemplate(KarmadaAggregatedAPIService, struct {
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Namespace string
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ServiceName string
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CABundle string
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}{
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Namespace: karmadaControlPlaneNamespace,
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ServiceName: util.KarmadaAggregatedAPIServerName(karmadaControlPlaneServiceName),
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CABundle: caBundle,
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})
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if err != nil {
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return fmt.Errorf("error when parsing AggregatedApiserver APIService template: %w", err)
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}
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apiService := &apiregistrationv1.APIService{}
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if err := runtime.DecodeInto(codecs.UniversalDecoder(), apiServiceBytes, apiService); err != nil {
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return fmt.Errorf("err when decoding AggregatedApiserver APIService: %w", err)
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}
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return apiclient.CreateOrUpdateAPIService(client, apiService)
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}
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func aggregatedApiserverService(client clientset.Interface, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, hostClusterServiceName, hostClusterNamespace string) error {
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aggregatedApiserverServiceBytes, err := util.ParseTemplate(KarmadaAggregatedApiserverService, struct {
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Namespace string
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ServiceName string
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HostClusterServiceName string
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HostClusterNamespace string
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}{
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Namespace: karmadaControlPlaneNamespace,
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ServiceName: util.KarmadaAggregatedAPIServerName(karmadaControlPlaneServiceName),
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HostClusterServiceName: util.KarmadaAggregatedAPIServerName(hostClusterServiceName),
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HostClusterNamespace: hostClusterNamespace,
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})
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if err != nil {
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return fmt.Errorf("error when parsing AggregatedApiserver Service template: %w", err)
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}
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aggregatedService := &corev1.Service{}
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if err := runtime.DecodeInto(clientsetscheme.Codecs.UniversalDecoder(), aggregatedApiserverServiceBytes, aggregatedService); err != nil {
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return fmt.Errorf("err when decoding AggregatedApiserver Service: %w", err)
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}
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return apiclient.CreateOrUpdateService(client, aggregatedService)
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}
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// EnsureMetricsAdapterAPIService creates APIService and a service for karmada-metrics-adapter
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func EnsureMetricsAdapterAPIService(aggregatorClient *aggregator.Clientset, client clientset.Interface, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, hostClusterServiceName, hostClusterNamespace, caBundle string) error {
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if err := karmadaMetricsAdapterService(client, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, hostClusterServiceName, hostClusterNamespace); err != nil {
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return err
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}
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return karmadaMetricsAdapterAPIService(aggregatorClient, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, caBundle)
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}
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func karmadaMetricsAdapterAPIService(client *aggregator.Clientset, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, caBundle string) error {
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for _, gv := range constants.KarmadaMetricsAdapterAPIServices {
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// The APIService name to metrics adapter is "$version.$group"
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apiServiceName := fmt.Sprintf("%s.%s", gv.Version, gv.Group)
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apiServiceBytes, err := util.ParseTemplate(KarmadaMetricsAdapterAPIService, struct {
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Name, Namespace string
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ServiceName, Group, Version string
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CABundle string
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}{
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Name: apiServiceName,
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Namespace: karmadaControlPlaneNamespace,
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Group: gv.Group,
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Version: gv.Version,
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ServiceName: util.KarmadaMetricsAdapterName(karmadaControlPlaneServiceName),
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CABundle: caBundle,
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})
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if err != nil {
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return fmt.Errorf("error when parsing KarmadaMetricsAdapter APIService %s template: %w", apiServiceName, err)
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}
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apiService := &apiregistrationv1.APIService{}
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if err := runtime.DecodeInto(codecs.UniversalDecoder(), apiServiceBytes, apiService); err != nil {
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return fmt.Errorf("err when decoding KarmadaMetricsAdapter APIService %s: %w", apiServiceName, err)
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}
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if err := apiclient.CreateOrUpdateAPIService(client, apiService); err != nil {
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return err
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}
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}
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return nil
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}
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func karmadaMetricsAdapterService(client clientset.Interface, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, hostClusterServiceName, hostClusterNamespace string) error {
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aggregatedApiserverServiceBytes, err := util.ParseTemplate(KarmadaMetricsAdapterService, struct {
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Namespace string
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ServiceName string
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HostClusterServiceName string
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HostClusterNamespace string
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}{
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Namespace: karmadaControlPlaneNamespace,
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ServiceName: util.KarmadaMetricsAdapterName(karmadaControlPlaneServiceName),
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HostClusterServiceName: util.KarmadaMetricsAdapterName(hostClusterServiceName),
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HostClusterNamespace: hostClusterNamespace,
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})
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if err != nil {
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return fmt.Errorf("error when parsing KarmadaMetricsAdapter Service template: %w", err)
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}
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aggregatedService := &corev1.Service{}
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if err := runtime.DecodeInto(clientsetscheme.Codecs.UniversalDecoder(), aggregatedApiserverServiceBytes, aggregatedService); err != nil {
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return fmt.Errorf("err when decoding KarmadaMetricsAdapter Service: %w", err)
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}
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if err := apiclient.CreateOrUpdateService(client, aggregatedService); err != nil {
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return err
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}
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return nil
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}
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// EnsureSearchAPIService creates APIService and a service for karmada-metrics-adapter
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func EnsureSearchAPIService(aggregatorClient *aggregator.Clientset, client clientset.Interface, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, hostClusterServiceName, hostClusterNamespace, caBundle string) error {
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if err := karmadaSearchService(client, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, hostClusterServiceName, hostClusterNamespace); err != nil {
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return err
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}
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return karmadaSearchAPIService(aggregatorClient, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, caBundle)
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}
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func karmadaSearchAPIService(client *aggregator.Clientset, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, caBundle string) error {
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apiServiceBytes, err := util.ParseTemplate(KarmadaSearchAPIService, struct {
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ServiceName, Namespace string
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CABundle string
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}{
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Namespace: karmadaControlPlaneNamespace,
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ServiceName: util.KarmadaSearchAPIServerName(karmadaControlPlaneServiceName),
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CABundle: caBundle,
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})
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if err != nil {
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return fmt.Errorf("error when parsing KarmadaSearch APIService template: %s", err.Error())
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}
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apiService := &apiregistrationv1.APIService{}
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if err = runtime.DecodeInto(codecs.UniversalDecoder(), apiServiceBytes, apiService); err != nil {
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return fmt.Errorf("err when decoding KarmadaSearch APIService: %s", err.Error())
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}
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if err = apiclient.CreateOrUpdateAPIService(client, apiService); err != nil {
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return err
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}
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return nil
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}
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func karmadaSearchService(client clientset.Interface, karmadaControlPlaneServiceName, karmadaControlPlaneNamespace, hostClusterServiceName, hostClusterNamespace string) error {
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searchApiserverServiceBytes, err := util.ParseTemplate(KarmadaSearchService, struct {
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Namespace string
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ServiceName string
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HostClusterServiceName string
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HostClusterNamespace string
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}{
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Namespace: karmadaControlPlaneNamespace,
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ServiceName: util.KarmadaSearchName(karmadaControlPlaneServiceName),
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HostClusterServiceName: util.KarmadaSearchName(hostClusterServiceName),
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HostClusterNamespace: hostClusterNamespace,
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})
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if err != nil {
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return fmt.Errorf("error when parsing KarmadaSearch Service template: %w", err)
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}
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searchService := &corev1.Service{}
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if err := runtime.DecodeInto(clientsetscheme.Codecs.UniversalDecoder(), searchApiserverServiceBytes, searchService); err != nil {
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return fmt.Errorf("err when decoding KarmadaSearch Service: %w", err)
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}
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if err := apiclient.CreateOrUpdateService(client, searchService); err != nil {
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return err
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}
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return nil
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}
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