/
seed_clientmap.go
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/
seed_clientmap.go
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// Copyright (c) 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 internal
import (
"context"
"fmt"
corev1 "k8s.io/api/core/v1"
eventsv1 "k8s.io/api/events/v1"
baseconfig "k8s.io/component-base/config"
"k8s.io/utils/clock"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/gardener/gardener/pkg/client/kubernetes"
"github.com/gardener/gardener/pkg/client/kubernetes/clientmap"
)
// seedClientMap is a ClientMap for requesting and storing clients for Seed clusters.
type seedClientMap struct {
clientmap.ClientMap
}
// NewSeedClientMap creates a new seedClientMap with the given factory.
func NewSeedClientMap(factory *SeedClientSetFactory) clientmap.ClientMap {
return &seedClientMap{
ClientMap: NewGenericClientMap(factory, log.WithValues("clientmap", "SeedClientMap"), clock.RealClock{}),
}
}
// SeedClientSetFactory is a ClientSetFactory that can produce new ClientSets to Seed clusters.
type SeedClientSetFactory struct {
// ClientConnectionConfiguration is the configuration that will be used by created ClientSets.
ClientConnectionConfig baseconfig.ClientConnectionConfiguration
}
// CalculateClientSetHash always returns "" and nil.
func (f *SeedClientSetFactory) CalculateClientSetHash(_ context.Context, _ clientmap.ClientSetKey) (string, error) {
return "", nil
}
// NewClientSet creates a new ClientSet for a Seed cluster.
func (f *SeedClientSetFactory) NewClientSet(_ context.Context, k clientmap.ClientSetKey) (kubernetes.Interface, string, error) {
_, ok := k.(SeedClientSetKey)
if !ok {
return nil, "", fmt.Errorf("unsupported ClientSetKey: expected %T, but got %T", SeedClientSetKey(""), k)
}
clientSet, err := NewClientFromFile(
"",
f.ClientConnectionConfig.Kubeconfig,
kubernetes.WithClientConnectionOptions(f.ClientConnectionConfig),
kubernetes.WithClientOptions(
client.Options{
Scheme: kubernetes.SeedScheme,
},
),
kubernetes.WithUncached(
&corev1.Event{},
&eventsv1.Event{},
),
)
if err != nil {
return nil, "", err
}
return clientSet, "", nil
}
// SeedClientSetKey is a ClientSetKey for a Seed cluster.
type SeedClientSetKey string
// Key returns the string representation of the ClientSetKey.
func (k SeedClientSetKey) Key() string {
return string(k)
}