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utils.go
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utils.go
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/*
Copyright 2016 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 cloudprovider
import (
"fmt"
"math/rand"
"time"
apiv1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/kubernetes/pkg/apis/scheduling"
kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
)
const (
// DefaultArch is the default Arch for GenericLabels
DefaultArch = "amd64"
// DefaultOS is the default OS for GenericLabels
DefaultOS = "linux"
// KubeProxyCpuRequestMillis is the amount of cpu requested by Kubeproxy
KubeProxyCpuRequestMillis = 100
)
// BuildReadyConditions sets up mock NodeConditions
func BuildReadyConditions() []apiv1.NodeCondition {
lastTransition := time.Now().Add(-time.Minute)
return []apiv1.NodeCondition{
{
Type: apiv1.NodeReady,
Status: apiv1.ConditionTrue,
LastTransitionTime: metav1.Time{Time: lastTransition},
},
{
Type: apiv1.NodeNetworkUnavailable,
Status: apiv1.ConditionFalse,
LastTransitionTime: metav1.Time{Time: lastTransition},
},
{
Type: apiv1.NodeDiskPressure,
Status: apiv1.ConditionFalse,
LastTransitionTime: metav1.Time{Time: lastTransition},
},
{
Type: apiv1.NodeMemoryPressure,
Status: apiv1.ConditionFalse,
LastTransitionTime: metav1.Time{Time: lastTransition},
},
/* This has been recently renamed. For compatibility with 1.6 lets don't populate it at all.
{
Type: apiv1.NodeInodePressure,
Status: apiv1.ConditionFalse,
LastTransitionTime: metav1.Time{Time: lastTransition},
},
*/
}
}
// BuildKubeProxy builds a KubeProxy pod definition
func BuildKubeProxy(name string) *apiv1.Pod {
// TODO: make cpu a flag.
priority := scheduling.SystemCriticalPriority
return &apiv1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: fmt.Sprintf("kube-proxy-%s-%d", name, rand.Int63()),
Namespace: "kube-system",
Annotations: map[string]string{
kubetypes.ConfigSourceAnnotationKey: kubetypes.FileSource,
kubetypes.ConfigMirrorAnnotationKey: "1234567890abcdef",
},
Labels: map[string]string{
"component": "kube-proxy",
"tier": "node",
},
},
Spec: apiv1.PodSpec{
Containers: []apiv1.Container{
{
Image: "kubeproxy",
Resources: apiv1.ResourceRequirements{
Requests: apiv1.ResourceList{
apiv1.ResourceCPU: *resource.NewMilliQuantity(
int64(KubeProxyCpuRequestMillis),
resource.DecimalSI),
},
},
},
},
Priority: &priority,
},
Status: apiv1.PodStatus{
Phase: apiv1.PodRunning,
Conditions: []apiv1.PodCondition{
{
Type: apiv1.PodReady,
Status: apiv1.ConditionTrue,
},
},
},
}
}
// JoinStringMaps joins node labels
func JoinStringMaps(items ...map[string]string) map[string]string {
result := make(map[string]string)
for _, m := range items {
for k, v := range m {
result[k] = v
}
}
return result
}