forked from kubernetes/kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 1
/
nodes_util.go
333 lines (293 loc) · 10.3 KB
/
nodes_util.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
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
/*
Copyright 2014 The Kubernetes 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 framework
import (
"fmt"
"os"
"path"
"path/filepath"
"strings"
"time"
"k8s.io/apimachinery/pkg/util/wait"
)
func EtcdUpgrade(target_storage, target_version string) error {
switch TestContext.Provider {
case "gce":
return etcdUpgradeGCE(target_storage, target_version)
default:
return fmt.Errorf("EtcdUpgrade() is not implemented for provider %s", TestContext.Provider)
}
}
func IngressUpgrade(isUpgrade bool) error {
switch TestContext.Provider {
case "gce":
return ingressUpgradeGCE(isUpgrade)
default:
return fmt.Errorf("IngressUpgrade() is not implemented for provider %s", TestContext.Provider)
}
}
func MasterUpgrade(v string) error {
switch TestContext.Provider {
case "gce":
return masterUpgradeGCE(v, false)
case "gke":
return masterUpgradeGKE(v)
case "kubernetes-anywhere":
return masterUpgradeKubernetesAnywhere(v)
default:
return fmt.Errorf("MasterUpgrade() is not implemented for provider %s", TestContext.Provider)
}
}
func etcdUpgradeGCE(target_storage, target_version string) error {
env := append(
os.Environ(),
"TEST_ETCD_VERSION="+target_version,
"STORAGE_BACKEND="+target_storage,
"TEST_ETCD_IMAGE=3.1.12")
_, _, err := RunCmdEnv(env, gceUpgradeScript(), "-l", "-M")
return err
}
func ingressUpgradeGCE(isUpgrade bool) error {
var command string
if isUpgrade {
// User specified image to upgrade to.
targetImage := TestContext.IngressUpgradeImage
if targetImage != "" {
command = fmt.Sprintf("sudo sed -i -re 's|(image:)(.*)|\\1 %s|' /etc/kubernetes/manifests/glbc.manifest", targetImage)
} else {
// Upgrade to latest HEAD image.
command = "sudo sed -i -re 's/(image:)(.*)/\\1 gcr.io\\/k8s-ingress-image-push\\/ingress-gce-e2e-glbc-amd64:latest/' /etc/kubernetes/manifests/glbc.manifest"
}
} else {
// Downgrade to latest release image.
command = "sudo sed -i -re 's/(image:)(.*)/\\1 k8s.gcr.io\\/google_containers\\/glbc:0.9.7/' /etc/kubernetes/manifests/glbc.manifest"
}
// Kubelet should restart glbc automatically.
sshResult, err := NodeExec(GetMasterHost(), command)
LogSSHResult(sshResult)
return err
}
// TODO(mrhohn): Remove this function when kube-proxy is run as a DaemonSet by default.
func MasterUpgradeGCEWithKubeProxyDaemonSet(v string, enableKubeProxyDaemonSet bool) error {
return masterUpgradeGCE(v, enableKubeProxyDaemonSet)
}
// TODO(mrhohn): Remove 'enableKubeProxyDaemonSet' when kube-proxy is run as a DaemonSet by default.
func masterUpgradeGCE(rawV string, enableKubeProxyDaemonSet bool) error {
env := append(os.Environ(), fmt.Sprintf("KUBE_PROXY_DAEMONSET=%v", enableKubeProxyDaemonSet))
// TODO: Remove these variables when they're no longer needed for downgrades.
if TestContext.EtcdUpgradeVersion != "" && TestContext.EtcdUpgradeStorage != "" {
env = append(env,
"TEST_ETCD_VERSION="+TestContext.EtcdUpgradeVersion,
"STORAGE_BACKEND="+TestContext.EtcdUpgradeStorage,
"TEST_ETCD_IMAGE=3.1.12")
} else {
// In e2e tests, we skip the confirmation prompt about
// implicit etcd upgrades to simulate the user entering "y".
env = append(env, "TEST_ALLOW_IMPLICIT_ETCD_UPGRADE=true")
}
v := "v" + rawV
_, _, err := RunCmdEnv(env, gceUpgradeScript(), "-M", v)
return err
}
func locationParamGKE() string {
if TestContext.CloudConfig.MultiMaster {
// GKE Regional Clusters are being tested.
return fmt.Sprintf("--region=%s", TestContext.CloudConfig.Region)
}
return fmt.Sprintf("--zone=%s", TestContext.CloudConfig.Zone)
}
func appendContainerCommandGroupIfNeeded(args []string) []string {
if TestContext.CloudConfig.Region != "" {
// TODO(wojtek-t): Get rid of it once Regional Clusters go to GA.
return append([]string{"beta"}, args...)
}
return args
}
func masterUpgradeGKE(v string) error {
Logf("Upgrading master to %q", v)
args := []string{
"container",
"clusters",
fmt.Sprintf("--project=%s", TestContext.CloudConfig.ProjectID),
locationParamGKE(),
"upgrade",
TestContext.CloudConfig.Cluster,
"--master",
fmt.Sprintf("--cluster-version=%s", v),
"--quiet",
}
_, _, err := RunCmd("gcloud", appendContainerCommandGroupIfNeeded(args)...)
if err != nil {
return err
}
waitForSSHTunnels()
return nil
}
func masterUpgradeKubernetesAnywhere(v string) error {
Logf("Upgrading master to %q", v)
kaPath := TestContext.KubernetesAnywherePath
originalConfigPath := filepath.Join(kaPath, ".config")
backupConfigPath := filepath.Join(kaPath, ".config.bak")
updatedConfigPath := filepath.Join(kaPath, fmt.Sprintf(".config-%s", v))
// modify config with specified k8s version
if _, _, err := RunCmd("sed",
"-i.bak", // writes original to .config.bak
fmt.Sprintf(`s/kubernetes_version=.*$/kubernetes_version=%q/`, v),
originalConfigPath); err != nil {
return err
}
defer func() {
// revert .config.bak to .config
if err := os.Rename(backupConfigPath, originalConfigPath); err != nil {
Logf("Could not rename %s back to %s", backupConfigPath, originalConfigPath)
}
}()
// invoke ka upgrade
if _, _, err := RunCmd("make", "-C", TestContext.KubernetesAnywherePath,
"WAIT_FOR_KUBECONFIG=y", "upgrade-master"); err != nil {
return err
}
// move .config to .config.<version>
if err := os.Rename(originalConfigPath, updatedConfigPath); err != nil {
return err
}
return nil
}
func NodeUpgrade(f *Framework, v string, img string) error {
// Perform the upgrade.
var err error
switch TestContext.Provider {
case "gce":
err = nodeUpgradeGCE(v, img, false)
case "gke":
err = nodeUpgradeGKE(v, img)
default:
err = fmt.Errorf("NodeUpgrade() is not implemented for provider %s", TestContext.Provider)
}
if err != nil {
return err
}
return waitForNodesReadyAfterUpgrade(f)
}
// TODO(mrhohn): Remove this function when kube-proxy is run as a DaemonSet by default.
func NodeUpgradeGCEWithKubeProxyDaemonSet(f *Framework, v string, img string, enableKubeProxyDaemonSet bool) error {
// Perform the upgrade.
if err := nodeUpgradeGCE(v, img, enableKubeProxyDaemonSet); err != nil {
return err
}
return waitForNodesReadyAfterUpgrade(f)
}
func waitForNodesReadyAfterUpgrade(f *Framework) error {
// Wait for it to complete and validate nodes are healthy.
//
// TODO(ihmccreery) We shouldn't have to wait for nodes to be ready in
// GKE; the operation shouldn't return until they all are.
numNodes, err := NumberOfRegisteredNodes(f.ClientSet)
if err != nil {
return fmt.Errorf("couldn't detect number of nodes")
}
Logf("Waiting up to %v for all %d nodes to be ready after the upgrade", RestartNodeReadyAgainTimeout, numNodes)
if _, err := CheckNodesReady(f.ClientSet, numNodes, RestartNodeReadyAgainTimeout); err != nil {
return err
}
return nil
}
// TODO(mrhohn): Remove 'enableKubeProxyDaemonSet' when kube-proxy is run as a DaemonSet by default.
func nodeUpgradeGCE(rawV, img string, enableKubeProxyDaemonSet bool) error {
v := "v" + rawV
env := append(os.Environ(), fmt.Sprintf("KUBE_PROXY_DAEMONSET=%v", enableKubeProxyDaemonSet))
if img != "" {
env = append(env, "KUBE_NODE_OS_DISTRIBUTION="+img)
_, _, err := RunCmdEnv(env, gceUpgradeScript(), "-N", "-o", v)
return err
}
_, _, err := RunCmdEnv(env, gceUpgradeScript(), "-N", v)
return err
}
func nodeUpgradeGKE(v string, img string) error {
Logf("Upgrading nodes to version %q and image %q", v, img)
args := []string{
"container",
"clusters",
fmt.Sprintf("--project=%s", TestContext.CloudConfig.ProjectID),
locationParamGKE(),
"upgrade",
TestContext.CloudConfig.Cluster,
fmt.Sprintf("--cluster-version=%s", v),
"--quiet",
}
if len(img) > 0 {
args = append(args, fmt.Sprintf("--image-type=%s", img))
}
_, _, err := RunCmd("gcloud", appendContainerCommandGroupIfNeeded(args)...)
if err != nil {
return err
}
waitForSSHTunnels()
return nil
}
// MigTemplate (GCE-only) returns the name of the MIG template that the
// nodes of the cluster use.
func MigTemplate() (string, error) {
var errLast error
var templ string
key := "instanceTemplate"
if wait.Poll(Poll, SingleCallTimeout, func() (bool, error) {
// TODO(mikedanese): make this hit the compute API directly instead of
// shelling out to gcloud.
// An `instance-groups managed describe` call outputs what we want to stdout.
output, _, err := retryCmd("gcloud", "compute", "instance-groups", "managed",
fmt.Sprintf("--project=%s", TestContext.CloudConfig.ProjectID),
"describe",
fmt.Sprintf("--zone=%s", TestContext.CloudConfig.Zone),
TestContext.CloudConfig.NodeInstanceGroup)
if err != nil {
errLast = fmt.Errorf("gcloud compute instance-groups managed describe call failed with err: %v", err)
return false, nil
}
// The 'describe' call probably succeeded; parse the output and try to
// find the line that looks like "instanceTemplate: url/to/<templ>" and
// return <templ>.
if val := ParseKVLines(output, key); len(val) > 0 {
url := strings.Split(val, "/")
templ = url[len(url)-1]
Logf("MIG group %s using template: %s", TestContext.CloudConfig.NodeInstanceGroup, templ)
return true, nil
}
errLast = fmt.Errorf("couldn't find %s in output to get MIG template. Output: %s", key, output)
return false, nil
}) != nil {
return "", fmt.Errorf("MigTemplate() failed with last error: %v", errLast)
}
return templ, nil
}
func gceUpgradeScript() string {
if len(TestContext.GCEUpgradeScript) == 0 {
return path.Join(TestContext.RepoRoot, "cluster/gce/upgrade.sh")
}
return TestContext.GCEUpgradeScript
}
func waitForSSHTunnels() {
Logf("Waiting for SSH tunnels to establish")
RunKubectl("run", "ssh-tunnel-test",
"--image=busybox",
"--restart=Never",
"--command", "--",
"echo", "Hello")
defer RunKubectl("delete", "pod", "ssh-tunnel-test")
// allow up to a minute for new ssh tunnels to establish
wait.PollImmediate(5*time.Second, time.Minute, func() (bool, error) {
_, err := RunKubectl("logs", "ssh-tunnel-test")
return err == nil, nil
})
}