103 lines
3.1 KiB
Go
103 lines
3.1 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package v1beta1
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import (
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/intstr"
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)
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func addDefaultingFuncs(scheme *runtime.Scheme) error {
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RegisterDefaults(scheme)
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return scheme.AddDefaultingFuncs(
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SetDefaults_StatefulSet,
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SetDefaults_Deployment,
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)
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}
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func SetDefaults_StatefulSet(obj *StatefulSet) {
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labels := obj.Spec.Template.Labels
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if labels != nil {
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if obj.Spec.Selector == nil {
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obj.Spec.Selector = &metav1.LabelSelector{
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MatchLabels: labels,
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}
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}
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if len(obj.Labels) == 0 {
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obj.Labels = labels
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}
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}
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if obj.Spec.Replicas == nil {
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obj.Spec.Replicas = new(int32)
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*obj.Spec.Replicas = 1
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}
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}
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// SetDefaults_Deployment sets additional defaults compared to its counterpart
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// in extensions. These addons are:
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// - MaxUnavailable during rolling update set to 25% (1 in extensions)
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// - MaxSurge value during rolling update set to 25% (1 in extensions)
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// - RevisionHistoryLimit set to 2 (not set in extensions)
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// - ProgressDeadlineSeconds set to 600s (not set in extensions)
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func SetDefaults_Deployment(obj *Deployment) {
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// Default labels and selector to labels from pod template spec.
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labels := obj.Spec.Template.Labels
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if labels != nil {
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if obj.Spec.Selector == nil {
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obj.Spec.Selector = &metav1.LabelSelector{MatchLabels: labels}
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}
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if len(obj.Labels) == 0 {
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obj.Labels = labels
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}
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}
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// Set DeploymentSpec.Replicas to 1 if it is not set.
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if obj.Spec.Replicas == nil {
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obj.Spec.Replicas = new(int32)
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*obj.Spec.Replicas = 1
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}
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strategy := &obj.Spec.Strategy
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// Set default DeploymentStrategyType as RollingUpdate.
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if strategy.Type == "" {
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strategy.Type = RollingUpdateDeploymentStrategyType
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}
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if strategy.Type == RollingUpdateDeploymentStrategyType {
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if strategy.RollingUpdate == nil {
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rollingUpdate := RollingUpdateDeployment{}
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strategy.RollingUpdate = &rollingUpdate
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}
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if strategy.RollingUpdate.MaxUnavailable == nil {
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// Set default MaxUnavailable as 25% by default.
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maxUnavailable := intstr.FromString("25%")
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strategy.RollingUpdate.MaxUnavailable = &maxUnavailable
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}
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if strategy.RollingUpdate.MaxSurge == nil {
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// Set default MaxSurge as 25% by default.
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maxSurge := intstr.FromString("25%")
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strategy.RollingUpdate.MaxSurge = &maxSurge
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}
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}
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if obj.Spec.RevisionHistoryLimit == nil {
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obj.Spec.RevisionHistoryLimit = new(int32)
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*obj.Spec.RevisionHistoryLimit = 2
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}
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if obj.Spec.ProgressDeadlineSeconds == nil {
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obj.Spec.ProgressDeadlineSeconds = new(int32)
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*obj.Spec.ProgressDeadlineSeconds = 600
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}
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}
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