forked from kubernetes/kubernetes
-
-
Notifications
You must be signed in to change notification settings - Fork 0
/
e2e_service.go
227 lines (201 loc) · 5.93 KB
/
e2e_service.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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
/*
Copyright 2016 The Kubernetes Authors 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
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_node
import (
"flag"
"fmt"
"io/ioutil"
"net/http"
"os"
"os/exec"
"path"
"strings"
"time"
"github.com/golang/glog"
)
var serverStartTimeout = flag.Duration("server-start-timeout", time.Second*120, "Time to wait for each server to become healthy.")
var reportDir = flag.String("report-dir", "", "Path to the directory where the JUnit XML reports should be saved. Default is empty, which doesn't generate these reports.")
type e2eService struct {
etcdCmd *exec.Cmd
etcdDataDir string
apiServerCmd *exec.Cmd
kubeletCmd *exec.Cmd
kubeletStaticPodDir string
nodeName string
}
func newE2eService(nodeName string) *e2eService {
return &e2eService{nodeName: nodeName}
}
func (es *e2eService) start() error {
if _, err := getK8sBin("kubelet"); err != nil {
return err
}
if _, err := getK8sBin("kube-apiserver"); err != nil {
return err
}
cmd, err := es.startEtcd()
if err != nil {
return err
}
es.etcdCmd = cmd
cmd, err = es.startApiServer()
if err != nil {
return err
}
es.apiServerCmd = cmd
cmd, err = es.startKubeletServer()
if err != nil {
return err
}
es.kubeletCmd = cmd
return nil
}
func (es *e2eService) stop() {
if es.kubeletCmd != nil {
err := es.kubeletCmd.Process.Kill()
if err != nil {
glog.Errorf("Failed to stop kubelet.\n%v", err)
}
}
if es.kubeletStaticPodDir != "" {
err := os.RemoveAll(es.kubeletStaticPodDir)
if err != nil {
glog.Errorf("Failed to delete kubelet static pod directory %s.\n%v", es.kubeletStaticPodDir, err)
}
}
if es.apiServerCmd != nil {
err := es.apiServerCmd.Process.Kill()
if err != nil {
glog.Errorf("Failed to stop kube-apiserver.\n%v", err)
}
}
if es.etcdCmd != nil {
err := es.etcdCmd.Process.Kill()
if err != nil {
glog.Errorf("Failed to stop etcd.\n%v", err)
}
}
if es.etcdDataDir != "" {
err := os.RemoveAll(es.etcdDataDir)
if err != nil {
glog.Errorf("Failed to delete etcd data directory %s.\n%v", es.etcdDataDir, err)
}
}
}
func (es *e2eService) startEtcd() (*exec.Cmd, error) {
dataDir, err := ioutil.TempDir("", "node-e2e")
if err != nil {
return nil, err
}
es.etcdDataDir = dataDir
cmd := exec.Command("etcd")
// Execute etcd in the data directory instead of using --data-dir because the flag sometimes requires additional
// configuration (e.g. --name in version 0.4.9)
cmd.Dir = es.etcdDataDir
hcc := newHealthCheckCommand(
"http://127.0.0.1:4001/v2/keys/", // Trailing slash is required,
cmd,
"etcd.log")
return cmd, es.startServer(hcc)
}
func (es *e2eService) startApiServer() (*exec.Cmd, error) {
cmd := exec.Command("sudo", getApiServerBin(),
"--etcd-servers", "http://127.0.0.1:4001",
"--insecure-bind-address", "0.0.0.0",
"--service-cluster-ip-range", "10.0.0.1/24",
"--kubelet-port", "10250",
"--allow-privileged", "true",
"--v", "8", "--logtostderr",
)
hcc := newHealthCheckCommand(
"http://127.0.0.1:8080/healthz",
cmd,
"kube-apiserver.log")
return cmd, es.startServer(hcc)
}
func (es *e2eService) startKubeletServer() (*exec.Cmd, error) {
dataDir, err := ioutil.TempDir("", "node-e2e-pod")
if err != nil {
return nil, err
}
es.kubeletStaticPodDir = dataDir
cmd := exec.Command("sudo", getKubeletServerBin(),
"--api-servers", "http://127.0.0.1:8080",
"--address", "0.0.0.0",
"--port", "10250",
"--hostname-override", es.nodeName, // Required because hostname is inconsistent across hosts
"--volume-stats-agg-period", "10s", // Aggregate volumes frequently so tests don't need to wait as long
"--allow-privileged", "true",
"--serialize-image-pulls", "false",
"--config", es.kubeletStaticPodDir,
"--file-check-frequency", "10s", // Check file frequently so tests won't wait too long
"--v", "8", "--logtostderr",
)
hcc := newHealthCheckCommand(
"http://127.0.0.1:10255/healthz",
cmd,
"kubelet.log")
return cmd, es.startServer(hcc)
}
func (es *e2eService) startServer(cmd *healthCheckCommand) error {
cmdErrorChan := make(chan error)
go func() {
defer close(cmdErrorChan)
// Create the output filename
outPath := path.Join(*reportDir, cmd.outputFilename)
outfile, err := os.Create(outPath)
if err != nil {
cmdErrorChan <- fmt.Errorf("Failed to create file %s for `%s` %v.", outPath, cmd, err)
return
}
defer outfile.Close()
defer outfile.Sync()
// Set the command to write the output file
cmd.Cmd.Stdout = outfile
cmd.Cmd.Stderr = outfile
// Run the command
err = cmd.Run()
if err != nil {
cmdErrorChan <- fmt.Errorf("%s Failed with error \"%v\". Output written to: %s", cmd, err, outPath)
return
}
}()
endTime := time.Now().Add(*serverStartTimeout)
for endTime.After(time.Now()) {
select {
case err := <-cmdErrorChan:
return err
case <-time.After(time.Second):
resp, err := http.Get(cmd.HealthCheckUrl)
if err == nil && resp.StatusCode == http.StatusOK {
return nil
}
}
}
return fmt.Errorf("Timeout waiting for service %s", cmd)
}
type healthCheckCommand struct {
*exec.Cmd
HealthCheckUrl string
outputFilename string
}
func newHealthCheckCommand(healthCheckUrl string, cmd *exec.Cmd, filename string) *healthCheckCommand {
return &healthCheckCommand{
HealthCheckUrl: healthCheckUrl,
Cmd: cmd,
outputFilename: filename,
}
}
func (hcc *healthCheckCommand) String() string {
return fmt.Sprintf("`%s %s` health-check: %s", hcc.Path, strings.Join(hcc.Args, " "), hcc.HealthCheckUrl)
}