mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
456d1ebcae
Removes the notion of name being anything more than advisory or command-line grouping, and adds checks for bootstrapping the command line. IDs are consistent if the URLs are consistent.
88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
/*
|
|
Copyright 2014 CoreOS, Inc.
|
|
|
|
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
|
|
|
|
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 etcdserver
|
|
|
|
import (
|
|
"crypto/sha1"
|
|
"encoding/binary"
|
|
"fmt"
|
|
"log"
|
|
"path"
|
|
"sort"
|
|
"strconv"
|
|
"time"
|
|
|
|
"github.com/coreos/etcd/pkg/types"
|
|
)
|
|
|
|
// RaftAttributes represents the raft related attributes of an etcd member.
|
|
type RaftAttributes struct {
|
|
// TODO(philips): ensure these are URLs
|
|
PeerURLs []string
|
|
}
|
|
|
|
// Attributes represents all the non-raft related attributes of an etcd member.
|
|
type Attributes struct {
|
|
Name string
|
|
ClientURLs []string
|
|
}
|
|
|
|
type Member struct {
|
|
ID uint64
|
|
RaftAttributes
|
|
Attributes
|
|
}
|
|
|
|
// newMember creates a Member without an ID and generates one based on the
|
|
// name, peer URLs. This is used for bootstrapping.
|
|
func newMember(name string, peerURLs types.URLs, now *time.Time) *Member {
|
|
m := &Member{
|
|
RaftAttributes: RaftAttributes{PeerURLs: peerURLs.StringSlice()},
|
|
Attributes: Attributes{Name: name},
|
|
}
|
|
|
|
var b []byte
|
|
sort.Strings(m.PeerURLs)
|
|
for _, p := range m.PeerURLs {
|
|
b = append(b, []byte(p)...)
|
|
}
|
|
|
|
if now != nil {
|
|
b = append(b, []byte(fmt.Sprintf("%d", now.Unix()))...)
|
|
}
|
|
|
|
hash := sha1.Sum(b)
|
|
m.ID = binary.BigEndian.Uint64(hash[:8])
|
|
return m
|
|
}
|
|
|
|
func NewMemberFromURLs(name string, urls types.URLs) *Member {
|
|
return newMember(name, urls, nil)
|
|
}
|
|
|
|
func (m Member) storeKey() string {
|
|
return path.Join(storeMembersPrefix, idAsHex(m.ID))
|
|
}
|
|
|
|
func parseMemberID(key string) uint64 {
|
|
id, err := strconv.ParseUint(path.Base(key), 16, 64)
|
|
if err != nil {
|
|
log.Panicf("unexpected parse member id error: %v", err)
|
|
}
|
|
return id
|
|
}
|