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kubeadm: set maxUnavailable and maxSurge for self-hosted component deployments.

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Refs https://github.com/kubernetes/kubeadm/issues/127
This commit is contained in:
Paulo Pires 2017-02-01 11:41:54 +00:00
parent 96cfe7b938
commit ab1a5b53ab
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1 changed files with 21 additions and 0 deletions
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21
cmd/kubeadm/app/master/selfhosted.go
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@ -24,6 +24,7 @@ import (
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/apimachinery/pkg/util/wait"
kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
"k8s.io/kubernetes/cmd/kubeadm/app/images"
@ -32,6 +33,12 @@ import (
"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
)
var (
// maximum unavailable and surge instances per self-hosted component deployment
maxUnavailable = intstr.FromInt(0)
maxSurge = intstr.FromInt(1)
)
func CreateSelfHostedControlPlane(cfg *kubeadmapi.MasterConfiguration, client *clientset.Clientset) error {
volumes := []v1.Volume{k8sVolume(cfg)}
volumeMounts := []v1.VolumeMount{k8sVolumeMount()}
@ -234,6 +241,13 @@ func getControllerManagerDeployment(cfg *kubeadmapi.MasterConfiguration, volumes
},
Spec: ext.DeploymentSpec{
// TODO bootkube uses 2 replicas
Strategy: ext.DeploymentStrategy{
Type: ext.RollingUpdateDeploymentStrategyType,
RollingUpdate: &ext.RollingUpdateDeployment{
MaxUnavailable: &maxUnavailable,
MaxSurge: &maxSurge,
},
},
Template: v1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{
@ -281,6 +295,13 @@ func getSchedulerDeployment(cfg *kubeadmapi.MasterConfiguration) ext.Deployment
},
Spec: ext.DeploymentSpec{
// TODO bootkube uses 2 replicas
Strategy: ext.DeploymentStrategy{
Type: ext.RollingUpdateDeploymentStrategyType,
RollingUpdate: &ext.RollingUpdateDeployment{
MaxUnavailable: &maxUnavailable,
MaxSurge: &maxSurge,
},
},
Template: v1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{