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context.go
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context.go
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// Copyright (c) 2021 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 context
import (
"context"
"fmt"
extensionscontroller "github.com/gardener/gardener/extensions/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// GardenContext wraps the actual context and cluster object.
type GardenContext interface {
GetCluster(ctx context.Context) (*extensionscontroller.Cluster, error)
}
type gardenContext struct {
client client.Client
object client.Object
cluster *extensionscontroller.Cluster
}
// NewGardenContext creates a context object.
func NewGardenContext(client client.Client, object client.Object) GardenContext {
return &gardenContext{
client: client,
object: object,
}
}
// NewInternalGardenContext creates a context object from a Cluster object.
func NewInternalGardenContext(cluster *extensionscontroller.Cluster) GardenContext {
return &gardenContext{
cluster: cluster,
}
}
// GetCluster returns the Cluster object.
func (c *gardenContext) GetCluster(ctx context.Context) (*extensionscontroller.Cluster, error) {
if c.cluster == nil {
cluster, err := extensionscontroller.GetCluster(ctx, c.client, c.object.GetNamespace())
if err != nil {
return nil, fmt.Errorf("could not get cluster for namespace '%s': %w", c.object.GetNamespace(), err)
}
c.cluster = cluster
}
return c.cluster, nil
}