scheme.go

// Copyright 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 helper

import (
	"fmt"

	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/runtime/serializer"
	utilruntime "k8s.io/apimachinery/pkg/util/runtime"

	"github.com/gardener/gardener/extensions/pkg/controller"
	api "github.com/gardener/gardener/pkg/provider-local/apis/local"
	"github.com/gardener/gardener/pkg/provider-local/apis/local/install"
	kubernetesutils "github.com/gardener/gardener/pkg/utils/kubernetes"
)

var (
	// Scheme is a Kubernetes scheme.
	Scheme *runtime.Scheme

	decoder runtime.Decoder
)

func init() {
	Scheme = runtime.NewScheme()
	utilruntime.Must(install.AddToScheme(Scheme))

	decoder = serializer.NewCodecFactory(Scheme, serializer.EnableStrict).UniversalDecoder()
}

// CloudProfileConfigFromCluster decodes the provider specific cloud profile configuration for a cluster
func CloudProfileConfigFromCluster(cluster *controller.Cluster) (*api.CloudProfileConfig, error) {
	var cloudProfileConfig *api.CloudProfileConfig
	if cluster != nil && cluster.CloudProfile != nil && cluster.CloudProfile.Spec.ProviderConfig != nil && cluster.CloudProfile.Spec.ProviderConfig.Raw != nil {
		cloudProfileConfig = &api.CloudProfileConfig{}
		if _, _, err := decoder.Decode(cluster.CloudProfile.Spec.ProviderConfig.Raw, nil, cloudProfileConfig); err != nil {
			return nil, fmt.Errorf("could not decode providerConfig of cloudProfile for '%s': %w", kubernetesutils.ObjectName(cluster.CloudProfile), err)
		}
	}
	return cloudProfileConfig, nil
}