78 lines
2.4 KiB
Go
78 lines
2.4 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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 storagebackend
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import (
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"time"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apiserver/pkg/storage/value"
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)
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const (
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StorageTypeUnset = ""
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StorageTypeETCD2 = "etcd2"
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StorageTypeETCD3 = "etcd3"
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DefaultCompactInterval = 5 * time.Minute
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)
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// Config is configuration for creating a storage backend.
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type Config struct {
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// Type defines the type of storage backend, e.g. "etcd2", etcd3". Default ("") is "etcd3".
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Type string
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// Prefix is the prefix to all keys passed to storage.Interface methods.
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Prefix string
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// ServerList is the list of storage servers to connect with.
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ServerList []string
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// TLS credentials
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KeyFile string
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CertFile string
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CAFile string
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// Quorum indicates that whether read operations should be quorum-level consistent.
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Quorum bool
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// Paging indicates whether the server implementation should allow paging (if it is
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// supported). This is generally configured by feature gating, or by a specific
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// resource type not wishing to allow paging, and is not intended for end users to
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// set.
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Paging bool
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// DeserializationCacheSize is the size of cache of deserialized objects.
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// Currently this is only supported in etcd2.
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// We will drop the cache once using protobuf.
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DeserializationCacheSize int
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Codec runtime.Codec
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// Transformer allows the value to be transformed prior to persisting into etcd.
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Transformer value.Transformer
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// CompactionInterval is an interval of requesting compaction from apiserver.
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// If the value is 0, no compaction will be issued.
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CompactionInterval time.Duration
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}
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func NewDefaultConfig(prefix string, codec runtime.Codec) *Config {
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return &Config{
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Prefix: prefix,
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// Default cache size to 0 - if unset, its size will be set based on target
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// memory usage.
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DeserializationCacheSize: 0,
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Codec: codec,
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CompactionInterval: DefaultCompactInterval,
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Quorum: true,
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}
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}
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