mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-14 02:10:21 +00:00
b1a4590967
There is no release for sigs.k8s.io/controller-runtime that supports Kubernetes v1.27. The main branch has all the required modifications, so we can use that for the time being. Signed-off-by: Niels de Vos <ndevos@ibm.com>
113 lines
4.0 KiB
Go
113 lines
4.0 KiB
Go
/*
|
|
Copyright 2020 The Kubernetes Authors.
|
|
|
|
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 config
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"sync"
|
|
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/apimachinery/pkg/runtime/serializer"
|
|
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
|
|
"sigs.k8s.io/controller-runtime/pkg/config/v1alpha1"
|
|
)
|
|
|
|
// ControllerManagerConfiguration defines the functions necessary to parse a config file
|
|
// and to configure the Options struct for the ctrl.Manager.
|
|
//
|
|
// Deprecated: The component config package has been deprecated and will be removed in a future release. Users should migrate to their own config implementation, please share feedback in https://github.com/kubernetes-sigs/controller-runtime/issues/895.
|
|
type ControllerManagerConfiguration interface {
|
|
runtime.Object
|
|
|
|
// Complete returns the versioned configuration
|
|
Complete() (v1alpha1.ControllerManagerConfigurationSpec, error)
|
|
}
|
|
|
|
// DeferredFileLoader is used to configure the decoder for loading controller
|
|
// runtime component config types.
|
|
//
|
|
// Deprecated: The component config package has been deprecated and will be removed in a future release. Users should migrate to their own config implementation, please share feedback in https://github.com/kubernetes-sigs/controller-runtime/issues/895.
|
|
type DeferredFileLoader struct {
|
|
ControllerManagerConfiguration
|
|
path string
|
|
scheme *runtime.Scheme
|
|
once sync.Once
|
|
err error
|
|
}
|
|
|
|
// File will set up the deferred file loader for the configuration
|
|
// this will also configure the defaults for the loader if nothing is
|
|
//
|
|
// Defaults:
|
|
// * Path: "./config.yaml"
|
|
// * Kind: GenericControllerManagerConfiguration
|
|
//
|
|
// Deprecated: The component config package has been deprecated and will be removed in a future release. Users should migrate to their own config implementation, please share feedback in https://github.com/kubernetes-sigs/controller-runtime/issues/895.
|
|
func File() *DeferredFileLoader {
|
|
scheme := runtime.NewScheme()
|
|
utilruntime.Must(v1alpha1.AddToScheme(scheme))
|
|
return &DeferredFileLoader{
|
|
path: "./config.yaml",
|
|
ControllerManagerConfiguration: &v1alpha1.ControllerManagerConfiguration{},
|
|
scheme: scheme,
|
|
}
|
|
}
|
|
|
|
// Complete will use sync.Once to set the scheme.
|
|
func (d *DeferredFileLoader) Complete() (v1alpha1.ControllerManagerConfigurationSpec, error) {
|
|
d.once.Do(d.loadFile)
|
|
if d.err != nil {
|
|
return v1alpha1.ControllerManagerConfigurationSpec{}, d.err
|
|
}
|
|
return d.ControllerManagerConfiguration.Complete()
|
|
}
|
|
|
|
// AtPath will set the path to load the file for the decoder.
|
|
func (d *DeferredFileLoader) AtPath(path string) *DeferredFileLoader {
|
|
d.path = path
|
|
return d
|
|
}
|
|
|
|
// OfKind will set the type to be used for decoding the file into.
|
|
func (d *DeferredFileLoader) OfKind(obj ControllerManagerConfiguration) *DeferredFileLoader {
|
|
d.ControllerManagerConfiguration = obj
|
|
return d
|
|
}
|
|
|
|
// loadFile is used from the mutex.Once to load the file.
|
|
func (d *DeferredFileLoader) loadFile() {
|
|
if d.scheme == nil {
|
|
d.err = fmt.Errorf("scheme not supplied to controller configuration loader")
|
|
return
|
|
}
|
|
|
|
content, err := os.ReadFile(d.path)
|
|
if err != nil {
|
|
d.err = fmt.Errorf("could not read file at %s", d.path)
|
|
return
|
|
}
|
|
|
|
codecs := serializer.NewCodecFactory(d.scheme)
|
|
|
|
// Regardless of if the bytes are of any external version,
|
|
// it will be read successfully and converted into the internal version
|
|
if err = runtime.DecodeInto(codecs.UniversalDecoder(), content, d.ControllerManagerConfiguration); err != nil {
|
|
d.err = fmt.Errorf("could not decode file into runtime.Object")
|
|
}
|
|
}
|