forked from kubernetes/kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 0
/
defaults.go
167 lines (150 loc) · 4.66 KB
/
defaults.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
/*
Copyright 2015 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 v1beta1
import (
"k8s.io/client-go/1.5/pkg/api/v1"
"k8s.io/client-go/1.5/pkg/runtime"
"k8s.io/client-go/1.5/pkg/util/intstr"
)
func addDefaultingFuncs(scheme *runtime.Scheme) error {
return scheme.AddDefaultingFuncs(
SetDefaults_DaemonSet,
SetDefaults_Deployment,
SetDefaults_Job,
SetDefaults_HorizontalPodAutoscaler,
SetDefaults_ReplicaSet,
SetDefaults_NetworkPolicy,
)
}
func SetDefaults_DaemonSet(obj *DaemonSet) {
labels := obj.Spec.Template.Labels
// TODO: support templates defined elsewhere when we support them in the API
if labels != nil {
if obj.Spec.Selector == nil {
obj.Spec.Selector = &LabelSelector{
MatchLabels: labels,
}
}
if len(obj.Labels) == 0 {
obj.Labels = labels
}
}
}
func SetDefaults_Deployment(obj *Deployment) {
// Default labels and selector to labels from pod template spec.
labels := obj.Spec.Template.Labels
if labels != nil {
if obj.Spec.Selector == nil {
obj.Spec.Selector = &LabelSelector{MatchLabels: labels}
}
if len(obj.Labels) == 0 {
obj.Labels = labels
}
}
// Set DeploymentSpec.Replicas to 1 if it is not set.
if obj.Spec.Replicas == nil {
obj.Spec.Replicas = new(int32)
*obj.Spec.Replicas = 1
}
strategy := &obj.Spec.Strategy
// Set default DeploymentStrategyType as RollingUpdate.
if strategy.Type == "" {
strategy.Type = RollingUpdateDeploymentStrategyType
}
if strategy.Type == RollingUpdateDeploymentStrategyType {
if strategy.RollingUpdate == nil {
rollingUpdate := RollingUpdateDeployment{}
strategy.RollingUpdate = &rollingUpdate
}
if strategy.RollingUpdate.MaxUnavailable == nil {
// Set default MaxUnavailable as 1 by default.
maxUnavailable := intstr.FromInt(1)
strategy.RollingUpdate.MaxUnavailable = &maxUnavailable
}
if strategy.RollingUpdate.MaxSurge == nil {
// Set default MaxSurge as 1 by default.
maxSurge := intstr.FromInt(1)
strategy.RollingUpdate.MaxSurge = &maxSurge
}
}
}
func SetDefaults_Job(obj *Job) {
labels := obj.Spec.Template.Labels
// TODO: support templates defined elsewhere when we support them in the API
if labels != nil {
// if an autoselector is requested, we'll build the selector later with controller-uid and job-name
autoSelector := bool(obj.Spec.AutoSelector != nil && *obj.Spec.AutoSelector)
// otherwise, we are using a manual selector
manualSelector := !autoSelector
// and default behavior for an unspecified manual selector is to use the pod template labels
if manualSelector && obj.Spec.Selector == nil {
obj.Spec.Selector = &LabelSelector{
MatchLabels: labels,
}
}
if len(obj.Labels) == 0 {
obj.Labels = labels
}
}
// For a non-parallel job, you can leave both `.spec.completions` and
// `.spec.parallelism` unset. When both are unset, both are defaulted to 1.
if obj.Spec.Completions == nil && obj.Spec.Parallelism == nil {
obj.Spec.Completions = new(int32)
*obj.Spec.Completions = 1
obj.Spec.Parallelism = new(int32)
*obj.Spec.Parallelism = 1
}
if obj.Spec.Parallelism == nil {
obj.Spec.Parallelism = new(int32)
*obj.Spec.Parallelism = 1
}
}
func SetDefaults_HorizontalPodAutoscaler(obj *HorizontalPodAutoscaler) {
if obj.Spec.MinReplicas == nil {
minReplicas := int32(1)
obj.Spec.MinReplicas = &minReplicas
}
if obj.Spec.CPUUtilization == nil {
obj.Spec.CPUUtilization = &CPUTargetUtilization{TargetPercentage: 80}
}
}
func SetDefaults_ReplicaSet(obj *ReplicaSet) {
labels := obj.Spec.Template.Labels
// TODO: support templates defined elsewhere when we support them in the API
if labels != nil {
if obj.Spec.Selector == nil {
obj.Spec.Selector = &LabelSelector{
MatchLabels: labels,
}
}
if len(obj.Labels) == 0 {
obj.Labels = labels
}
}
if obj.Spec.Replicas == nil {
obj.Spec.Replicas = new(int32)
*obj.Spec.Replicas = 1
}
}
func SetDefaults_NetworkPolicy(obj *NetworkPolicy) {
// Default any undefined Protocol fields to TCP.
for _, i := range obj.Spec.Ingress {
// TODO: Update Ports to be a pointer to slice as soon as auto-generation supports it.
for _, p := range i.Ports {
if p.Protocol == nil {
proto := v1.ProtocolTCP
p.Protocol = &proto
}
}
}
}