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crd.go
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crd.go
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// Copyright (c) 2022 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 vpa
import (
"context"
_ "embed"
"github.com/gardener/gardener/pkg/client/kubernetes"
"github.com/gardener/gardener/pkg/operation/botanist/component"
"github.com/gardener/gardener/pkg/utils/managedresources"
)
var (
//go:embed templates/crd-verticalpodautoscalers.tpl.yaml
verticalPodAutoscalerCRD string
//go:embed templates/crd-verticalpodautoscalercheckpoints.tpl.yaml
verticalPodAutoscalerCheckpointCRD string
crdResources map[string]string
)
func init() {
crdResources = map[string]string{
"crd-verticalpodautoscalers.yaml": verticalPodAutoscalerCRD,
"crd-verticalpodautoscalercheckpoints.yaml": verticalPodAutoscalerCheckpointCRD,
}
}
type vpaCRD struct {
applier kubernetes.Applier
registry *managedresources.Registry
}
// NewCRD can be used to deploy the CRD definitions for the Kubernetes Vertical Pod Autoscaler.
func NewCRD(applier kubernetes.Applier, registry *managedresources.Registry) component.Deployer {
return &vpaCRD{
applier: applier,
registry: registry,
}
}
// Deploy creates and updates the CRD definitions for the Kubernetes Vertical Pod Autoscaler.
func (v *vpaCRD) Deploy(ctx context.Context) error {
for filename, resource := range crdResources {
if v.registry != nil {
v.registry.AddSerialized(filename, []byte(resource))
continue
}
if err := v.applier.ApplyManifest(ctx, kubernetes.NewManifestReader([]byte(resource)), kubernetes.DefaultMergeFuncs); err != nil {
return err
}
}
return nil
}
func (v *vpaCRD) Destroy(ctx context.Context) error {
if v.registry != nil {
return nil
}
for _, crd := range crdResources {
if err := v.applier.DeleteManifest(ctx, kubernetes.NewManifestReader([]byte(crd))); err != nil {
return err
}
}
return nil
}