91 lines
2.4 KiB
Go
91 lines
2.4 KiB
Go
/*
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Copyright 2021 Alibaba Group Holding Limited.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package polardbxcluster
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import (
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"context"
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"time"
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"github.com/go-logr/logr"
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"k8s.io/apimachinery/pkg/util/yaml"
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configutil "github.com/alibaba/polardbx-operator/pkg/util/config"
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"github.com/alibaba/polardbx-operator/pkg/util/config/bundle"
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"github.com/alibaba/polardbx-operator/pkg/util/config/loader"
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"github.com/alibaba/polardbx-operator/pkg/util/config/store"
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)
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type DefaulterConfig struct {
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ProtocolVersion string `json:"protocol_version,omitempty"`
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StorageEngine string `json:"storage_engine,omitempty"`
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ServiceType string `json:"service_type,omitempty"`
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UpgradeStrategy string `json:"upgrade_strategy,omitempty"`
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}
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type ValidatorConfig struct {
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}
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type WebhookAdmissionConfig struct {
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Defaulter DefaulterConfig `json:"default,omitempty"`
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Validator ValidatorConfig `json:"validator,omitempty"`
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}
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type WebhookAdmissionConfigLoaderFunc func() *WebhookAdmissionConfig
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func NewConfigLoaderAndStartBackgroundRefresh(ctx context.Context, path string, logger logr.Logger) (WebhookAdmissionConfigLoaderFunc, error) {
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configStore := &store.Store{}
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driver := configutil.NewConfigWatchDriver(
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loader.NewFileSystemLoader(path),
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func(b bundle.Bundle) (interface{}, error) {
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r, err := bundle.GetOneFromBundle(b, "webhook.yaml", "webhook.json")
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if err != nil {
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return nil, err
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}
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var c WebhookAdmissionConfig
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decoder := yaml.NewYAMLOrJSONDecoder(r, 512)
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err = decoder.Decode(&c)
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if err != nil {
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return nil, err
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}
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return &c, nil
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},
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configutil.WatchDriverOptions{
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Logger: logger,
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Interval: time.Second,
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Watchers: []configutil.Watcher{
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func(i interface{}) {
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configStore.Update(i)
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},
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},
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},
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)
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err := driver.Start(ctx)
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if err != nil {
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return nil, err
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}
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return func() *WebhookAdmissionConfig {
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v := configStore.Get()
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if v == nil {
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return nil
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}
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return v.(*WebhookAdmissionConfig)
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}, nil
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}
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