/
options.go
72 lines (57 loc) · 1.94 KB
/
options.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package app
import (
"fmt"
"os"
"github.com/spf13/pflag"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
"github.com/gardener/gardener/cmd/utils"
"github.com/gardener/gardener/pkg/admissioncontroller/apis/config"
admissioncontrollerv1alpha1 "github.com/gardener/gardener/pkg/admissioncontroller/apis/config/v1alpha1"
admissioncontrollervalidation "github.com/gardener/gardener/pkg/admissioncontroller/apis/config/validation"
)
var configDecoder runtime.Decoder
func init() {
configScheme := runtime.NewScheme()
schemeBuilder := runtime.NewSchemeBuilder(
config.AddToScheme,
admissioncontrollerv1alpha1.AddToScheme,
)
utilruntime.Must(schemeBuilder.AddToScheme(configScheme))
configDecoder = serializer.NewCodecFactory(configScheme).UniversalDecoder()
}
type options struct {
configFile string
config *config.AdmissionControllerConfiguration
}
var _ utils.Options = &options{}
func (o *options) addFlags(fs *pflag.FlagSet) {
fs.StringVar(&o.configFile, "config", o.configFile, "Path to configuration file.")
}
func (o *options) Complete() error {
if len(o.configFile) == 0 {
return fmt.Errorf("missing config file")
}
data, err := os.ReadFile(o.configFile)
if err != nil {
return fmt.Errorf("error reading config file: %w", err)
}
o.config = &config.AdmissionControllerConfiguration{}
if err = runtime.DecodeInto(configDecoder, data, o.config); err != nil {
return fmt.Errorf("error decoding config: %w", err)
}
return nil
}
func (o *options) Validate() error {
if errs := admissioncontrollervalidation.ValidateAdmissionControllerConfiguration(o.config); len(errs) > 0 {
return errs.ToAggregate()
}
return nil
}
func (o *options) LogConfig() (string, string) {
return o.config.LogLevel, o.config.LogFormat
}