forked from kubernetes/kubernetes
-
-
Notifications
You must be signed in to change notification settings - Fork 0
/
create_resources.go
234 lines (214 loc) · 7.39 KB
/
create_resources.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
/*
Copyright 2018 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.
*/
// TODO: Refactor common part of functions in this file for generic object kinds.
package utils
import (
"fmt"
"time"
batch "k8s.io/api/batch/v1"
"k8s.io/api/core/v1"
extensions "k8s.io/api/extensions/v1beta1"
apierrs "k8s.io/apimachinery/pkg/api/errors"
utilnet "k8s.io/apimachinery/pkg/util/net"
"k8s.io/apimachinery/pkg/util/wait"
clientset "k8s.io/client-go/kubernetes"
)
const (
// Parameters for retrying with exponential backoff.
retryBackoffInitialDuration = 100 * time.Millisecond
retryBackoffFactor = 3
retryBackoffJitter = 0
retryBackoffSteps = 6
)
// Utility for retrying the given function with exponential backoff.
func RetryWithExponentialBackOff(fn wait.ConditionFunc) error {
backoff := wait.Backoff{
Duration: retryBackoffInitialDuration,
Factor: retryBackoffFactor,
Jitter: retryBackoffJitter,
Steps: retryBackoffSteps,
}
return wait.ExponentialBackoff(backoff, fn)
}
func IsRetryableAPIError(err error) bool {
// These errors may indicate a transient error that we can retry in tests.
if apierrs.IsInternalError(err) || apierrs.IsTimeout(err) || apierrs.IsServerTimeout(err) ||
apierrs.IsTooManyRequests(err) || utilnet.IsProbableEOF(err) || utilnet.IsConnectionReset(err) {
return true
}
// If the error sends the Retry-After header, we respect it as an explicit confirmation we should retry.
if _, shouldRetry := apierrs.SuggestsClientDelay(err); shouldRetry {
return true
}
return false
}
func CreatePodWithRetries(c clientset.Interface, namespace string, obj *v1.Pod) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.CoreV1().Pods(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}
func CreateRCWithRetries(c clientset.Interface, namespace string, obj *v1.ReplicationController) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.CoreV1().ReplicationControllers(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}
func CreateReplicaSetWithRetries(c clientset.Interface, namespace string, obj *extensions.ReplicaSet) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.ExtensionsV1beta1().ReplicaSets(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}
func CreateDeploymentWithRetries(c clientset.Interface, namespace string, obj *extensions.Deployment) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.ExtensionsV1beta1().Deployments(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}
func CreateDaemonSetWithRetries(c clientset.Interface, namespace string, obj *extensions.DaemonSet) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.ExtensionsV1beta1().DaemonSets(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}
func CreateJobWithRetries(c clientset.Interface, namespace string, obj *batch.Job) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.BatchV1().Jobs(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}
func CreateSecretWithRetries(c clientset.Interface, namespace string, obj *v1.Secret) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.CoreV1().Secrets(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}
func CreateConfigMapWithRetries(c clientset.Interface, namespace string, obj *v1.ConfigMap) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.CoreV1().ConfigMaps(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}
func CreateServiceWithRetries(c clientset.Interface, namespace string, obj *v1.Service) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.CoreV1().Services(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}
func CreateResourceQuotaWithRetries(c clientset.Interface, namespace string, obj *v1.ResourceQuota) error {
if obj == nil {
return fmt.Errorf("Object provided to create is empty")
}
createFunc := func() (bool, error) {
_, err := c.CoreV1().ResourceQuotas(namespace).Create(obj)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
if IsRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("Failed to create object with non-retriable error: %v", err)
}
return RetryWithExponentialBackOff(createFunc)
}