| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 etcd |
| |
| import ( |
| "fmt" |
| "net/url" |
| |
| "github.com/apache/servicecomb-service-center/pkg/log" |
| "github.com/coreos/etcd/compactor" |
| "github.com/coreos/etcd/embed" |
| "github.com/coreos/etcd/etcdserver" |
| ) |
| |
| type config struct { |
| name string |
| dataDir string |
| peerAddr string |
| peers map[string]string |
| } |
| |
| // Option to etcd config |
| type Option func(*config) |
| |
| // WithName returns name option |
| func WithName(name string) Option { |
| return func(c *config) { c.name = name } |
| } |
| |
| // WithDataDir returns data dir option |
| func WithDataDir(dir string) Option { |
| return func(c *config) { c.dataDir = dir } |
| } |
| |
| // WithPeerAddr returns peer address option |
| func WithPeerAddr(peerAddr string) Option { |
| return func(c *config) { c.peerAddr = peerAddr } |
| } |
| |
| // WithAddPeers returns add peers option |
| func WithAddPeers(name, addr string) Option { |
| return func(c *config) { |
| c.peers[name] = addr |
| } |
| } |
| |
| func toConfig(ops ...Option) *config { |
| c := &config{peers: map[string]string{}} |
| for _, op := range ops { |
| op(c) |
| } |
| return c |
| } |
| |
| func toEtcdConfig(ops ...Option) (*embed.Config, error) { |
| conf := embed.NewConfig() |
| conf.EnableV2 = false |
| conf.EnablePprof = false |
| conf.QuotaBackendBytes = etcdserver.MaxQuotaBytes |
| conf.AutoCompactionMode = compactor.ModePeriodic |
| conf.AutoCompactionRetention = "1h" |
| |
| conf.ACUrls = nil |
| conf.LCUrls = nil |
| |
| err := mergeConfig(conf, toConfig(ops...)) |
| if err != nil { |
| return nil, err |
| } |
| return conf, nil |
| } |
| |
| func mergeConfig(src *embed.Config, dst *config) error { |
| if dst.name != "" { |
| src.Name = dst.name |
| } |
| |
| if dst.dataDir != "" { |
| src.Dir = dst.dataDir |
| } |
| |
| proto := "http://" |
| if dst.peerAddr != "" { |
| peer, err := url.Parse(proto + dst.peerAddr) |
| if err != nil { |
| log.Error(fmt.Sprintf("parse peer listener '%s' failed", dst.peerAddr), err) |
| return err |
| } |
| src.APUrls = []url.URL{*peer} |
| src.LPUrls = []url.URL{*peer} |
| src.InitialCluster = src.Name + "=" + peer.String() |
| } |
| |
| if len(dst.peers) > 0 { |
| initialCluster := "" |
| for key, val := range dst.peers { |
| initialCluster += key + "=" + proto + val + "," |
| } |
| src.InitialCluster = initialCluster[:len(initialCluster)-1] |
| } |
| return nil |
| } |