forked from etcd-io/etcd
-
Notifications
You must be signed in to change notification settings - Fork 0
/
etcd_process.go
141 lines (119 loc) · 3.34 KB
/
etcd_process.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
// Copyright 2017 The etcd Authors
//
// 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 e2e
import (
"fmt"
"net/url"
"os"
"github.com/coreos/etcd/pkg/expect"
"github.com/coreos/etcd/pkg/fileutil"
)
var (
etcdServerReadyLines = []string{"enabled capabilities for version", "published"}
binPath string
ctlBinPath string
)
// etcdProcess is a process that serves etcd requests.
type etcdProcess interface {
EndpointsV2() []string
EndpointsV3() []string
EndpointsMetrics() []string
Start() error
Restart() error
Stop() error
Close() error
WithStopSignal(sig os.Signal) os.Signal
Config() *etcdServerProcessConfig
}
type etcdServerProcess struct {
cfg *etcdServerProcessConfig
proc *expect.ExpectProcess
donec chan struct{} // closed when Interact() terminates
}
type etcdServerProcessConfig struct {
execPath string
args []string
tlsArgs []string
dataDirPath string
keepDataDir bool
name string
purl url.URL
acurl string
murl string
initialToken string
initialCluster string
}
func newEtcdServerProcess(cfg *etcdServerProcessConfig) (*etcdServerProcess, error) {
if !fileutil.Exist(cfg.execPath) {
return nil, fmt.Errorf("could not find etcd binary")
}
if !cfg.keepDataDir {
if err := os.RemoveAll(cfg.dataDirPath); err != nil {
return nil, err
}
}
return &etcdServerProcess{cfg: cfg, donec: make(chan struct{})}, nil
}
func (ep *etcdServerProcess) EndpointsV2() []string { return []string{ep.cfg.acurl} }
func (ep *etcdServerProcess) EndpointsV3() []string { return ep.EndpointsV2() }
func (ep *etcdServerProcess) EndpointsMetrics() []string { return []string{ep.cfg.murl} }
func (ep *etcdServerProcess) Start() error {
if ep.proc != nil {
panic("already started")
}
proc, err := spawnCmd(append([]string{ep.cfg.execPath}, ep.cfg.args...))
if err != nil {
return err
}
ep.proc = proc
return ep.waitReady()
}
func (ep *etcdServerProcess) Restart() error {
if err := ep.Stop(); err != nil {
return err
}
ep.donec = make(chan struct{})
return ep.Start()
}
func (ep *etcdServerProcess) Stop() error {
if ep == nil || ep.proc == nil {
return nil
}
if err := ep.proc.Stop(); err != nil {
return err
}
ep.proc = nil
<-ep.donec
ep.donec = make(chan struct{})
if ep.cfg.purl.Scheme == "unix" || ep.cfg.purl.Scheme == "unixs" {
os.Remove(ep.cfg.purl.Host + ep.cfg.purl.Path)
}
return nil
}
func (ep *etcdServerProcess) Close() error {
if err := ep.Stop(); err != nil {
return err
}
return os.RemoveAll(ep.cfg.dataDirPath)
}
func (ep *etcdServerProcess) WithStopSignal(sig os.Signal) os.Signal {
ret := ep.proc.StopSignal
ep.proc.StopSignal = sig
return ret
}
func (ep *etcdServerProcess) waitReady() error {
defer close(ep.donec)
return waitReadyExpectProc(ep.proc, etcdServerReadyLines)
}
func (ep *etcdServerProcess) Config() *etcdServerProcessConfig { return ep.cfg }