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bootstrap.go
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bootstrap.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 clusterautoscaler
import (
"context"
"github.com/gardener/gardener/pkg/client/kubernetes"
"github.com/gardener/gardener/pkg/operation/common"
machinev1alpha1 "github.com/gardener/machine-controller-manager/pkg/apis/machine/v1alpha1"
rbacv1 "k8s.io/api/rbac/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"sigs.k8s.io/controller-runtime/pkg/client"
)
const (
clusterRoleControlName = "system:cluster-autoscaler-seed"
managedResourceControlName = "cluster-autoscaler"
)
// BootstrapSeed deploys the RBAC configuration for the control cluster.
func BootstrapSeed(ctx context.Context, c client.Client, namespace, _ string) error {
var (
versions = schema.GroupVersions([]schema.GroupVersion{rbacv1.SchemeGroupVersion})
codec = kubernetes.ShootCodec.CodecForVersions(kubernetes.SeedSerializer, kubernetes.SeedSerializer, versions, versions)
clusterRole = &rbacv1.ClusterRole{
ObjectMeta: metav1.ObjectMeta{
Name: clusterRoleControlName,
},
Rules: []rbacv1.PolicyRule{
{
APIGroups: []string{machinev1alpha1.GroupName},
Resources: []string{"*"},
Verbs: []string{"create", "delete", "deletecollection", "get", "list", "patch", "update", "watch"},
},
},
}
clusterRoleYAML, _ = runtime.Encode(codec, clusterRole)
)
return common.DeployManagedResourceForSeed(ctx, c, managedResourceControlName, namespace, false, map[string][]byte{
"clusterrole.yaml": clusterRoleYAML,
})
}