/
namespaces.go
97 lines (78 loc) · 3.05 KB
/
namespaces.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 namespaces
import (
"context"
"time"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
"github.com/gardener/gardener/pkg/client/kubernetes"
"github.com/gardener/gardener/pkg/operation/botanist/component"
"github.com/gardener/gardener/pkg/utils/managedresources"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"sigs.k8s.io/controller-runtime/pkg/client"
)
const managedResourceName = "shoot-core-namespaces"
// New creates a new instance of DeployWaiter for the namespaces.
func New(
client client.Client,
namespace string,
) component.DeployWaiter {
return &namespaces{
client: client,
namespace: namespace,
}
}
type namespaces struct {
client client.Client
namespace string
}
func (n *namespaces) Deploy(ctx context.Context) error {
data, err := n.computeResourcesData()
if err != nil {
return err
}
return managedresources.CreateForShoot(ctx, n.client, n.namespace, managedResourceName, true, data)
}
func (n *namespaces) Destroy(ctx context.Context) error {
return managedresources.DeleteForShoot(ctx, n.client, n.namespace, managedResourceName)
}
// TimeoutWaitForManagedResource is the timeout used while waiting for the ManagedResources to become healthy
// or deleted.
var TimeoutWaitForManagedResource = 2 * time.Minute
func (n *namespaces) Wait(ctx context.Context) error {
timeoutCtx, cancel := context.WithTimeout(ctx, TimeoutWaitForManagedResource)
defer cancel()
return managedresources.WaitUntilHealthy(timeoutCtx, n.client, n.namespace, managedResourceName)
}
func (n *namespaces) WaitCleanup(ctx context.Context) error {
timeoutCtx, cancel := context.WithTimeout(ctx, TimeoutWaitForManagedResource)
defer cancel()
return managedresources.WaitUntilDeleted(timeoutCtx, n.client, n.namespace, managedResourceName)
}
func (n *namespaces) computeResourcesData() (map[string][]byte, error) {
var (
registry = managedresources.NewRegistry(kubernetes.ShootScheme, kubernetes.ShootCodec, kubernetes.ShootSerializer)
kubeSystemNamespace = &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: metav1.NamespaceSystem,
Labels: getLabels(),
},
}
)
return registry.AddAllAndSerialize(kubeSystemNamespace)
}
func getLabels() map[string]string {
return map[string]string{v1beta1constants.GardenerPurpose: metav1.NamespaceSystem}
}