/
default_storage_factory_builder.go
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/
default_storage_factory_builder.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* 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
*
* https://opensource.org/licenses/Apache-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 OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
// Portions Copyright 2014 The Kubernetes Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package storage
import (
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apiserver/pkg/server/options/encryptionconfig"
"k8s.io/apiserver/pkg/server/resourceconfig"
serverstorage "k8s.io/apiserver/pkg/server/storage"
"k8s.io/apiserver/pkg/storage/storagebackend"
"strings"
storageoptions "tkestack.io/tke/pkg/apiserver/storage/options"
)
// SpecialDefaultResourcePrefixes are prefixes compiled into Kubernetes.
var SpecialDefaultResourcePrefixes = map[schema.GroupResource]string{}
// NewFactoryConfig creates the default FactoryConfig object.
func NewFactoryConfig(codecs runtime.StorageSerializer, scheme *runtime.Scheme) *FactoryConfig {
var resources []schema.GroupVersionResource
return &FactoryConfig{
Serializer: codecs,
DefaultResourceEncoding: serverstorage.NewDefaultResourceEncodingConfig(scheme),
ResourceEncodingOverrides: resources,
}
}
// FactoryConfig represents the configuration of etcd backend storage.
type FactoryConfig struct {
StorageConfig storagebackend.Config
APIResourceConfig *serverstorage.ResourceConfig
DefaultResourceEncoding *serverstorage.DefaultResourceEncodingConfig
DefaultStorageMediaType string
Serializer runtime.StorageSerializer
ResourceEncodingOverrides []schema.GroupVersionResource
ETCDServersOverrides []string
EncryptionProviderConfigFilePath string
}
// Complete takes the command arguments and factory and infers any remaining
// options.
func (c *FactoryConfig) Complete(etcdOptions *storageoptions.ETCDStorageOptions) (*CompletedFactoryConfig, error) {
c.StorageConfig = storagebackend.Config{
Type: storagebackend.StorageTypeETCD3,
Prefix: etcdOptions.Prefix,
Transport: storagebackend.TransportConfig{
ServerList: etcdOptions.ServerList,
KeyFile: etcdOptions.KeyFile,
CertFile: etcdOptions.CertFile,
TrustedCAFile: etcdOptions.CAFile,
},
Paging: etcdOptions.Paging,
Codec: etcdOptions.Codec,
EncodeVersioner: etcdOptions.EncodeVersioner,
Transformer: etcdOptions.Transformer,
CompactionInterval: etcdOptions.CompactionInterval,
CountMetricPollPeriod: etcdOptions.CountMetricPollPeriod,
}
c.DefaultStorageMediaType = etcdOptions.DefaultStorageMediaType
c.ETCDServersOverrides = etcdOptions.ETCDServersOverrides
c.EncryptionProviderConfigFilePath = etcdOptions.EncryptionProviderConfigFilePath
return &CompletedFactoryConfig{c}, nil
}
// CompletedFactoryConfig represents the configuration of etcd backend storage.
type CompletedFactoryConfig struct {
*FactoryConfig
}
// New creates the DefaultStorageFactory object and returns it.
func (c *CompletedFactoryConfig) New() (*serverstorage.DefaultStorageFactory, error) {
resourceEncodingConfig := resourceconfig.MergeResourceEncodingConfigs(c.DefaultResourceEncoding, c.ResourceEncodingOverrides)
storageFactory := serverstorage.NewDefaultStorageFactory(
c.StorageConfig,
c.DefaultStorageMediaType,
c.Serializer,
resourceEncodingConfig,
c.APIResourceConfig,
SpecialDefaultResourcePrefixes)
for _, override := range c.ETCDServersOverrides {
tokens := strings.Split(override, "#")
apiresource := strings.Split(tokens[0], "/")
group := apiresource[0]
resource := apiresource[1]
groupResource := schema.GroupResource{Group: group, Resource: resource}
servers := strings.Split(tokens[1], ";")
storageFactory.SetEtcdLocation(groupResource, servers)
}
if len(c.EncryptionProviderConfigFilePath) != 0 {
transformerOverrides, err := encryptionconfig.GetTransformerOverrides(c.EncryptionProviderConfigFilePath)
if err != nil {
return nil, err
}
for groupResource, transformer := range transformerOverrides {
storageFactory.SetTransformer(groupResource, transformer)
}
}
return storageFactory, nil
}