127 lines
4.9 KiB
Go
127 lines
4.9 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 waste
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import (
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"testing"
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"time"
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"k8s.io/autoscaler/cluster-autoscaler/cloudprovider"
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"k8s.io/autoscaler/cluster-autoscaler/config"
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. "k8s.io/autoscaler/cluster-autoscaler/utils/test"
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"github.com/stretchr/testify/assert"
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apiv1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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"k8s.io/autoscaler/cluster-autoscaler/expander"
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"k8s.io/autoscaler/cluster-autoscaler/simulator/framework"
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)
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type FakeNodeGroup struct {
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id string
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}
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func (f *FakeNodeGroup) MaxSize() int { return 2 }
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func (f *FakeNodeGroup) MinSize() int { return 1 }
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func (f *FakeNodeGroup) TargetSize() (int, error) { return 2, nil }
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func (f *FakeNodeGroup) IncreaseSize(delta int) error { return nil }
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func (f *FakeNodeGroup) AtomicIncreaseSize(delta int) error { return cloudprovider.ErrNotImplemented }
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func (f *FakeNodeGroup) DecreaseTargetSize(delta int) error { return nil }
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func (f *FakeNodeGroup) DeleteNodes([]*apiv1.Node) error { return nil }
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func (f *FakeNodeGroup) Id() string { return f.id }
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func (f *FakeNodeGroup) Debug() string { return f.id }
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func (f *FakeNodeGroup) Nodes() ([]cloudprovider.Instance, error) {
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return []cloudprovider.Instance{}, nil
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}
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func (f *FakeNodeGroup) TemplateNodeInfo() (*framework.NodeInfo, error) {
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return nil, cloudprovider.ErrNotImplemented
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}
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func (f *FakeNodeGroup) Exist() bool { return true }
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func (f *FakeNodeGroup) Create() (cloudprovider.NodeGroup, error) {
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return nil, cloudprovider.ErrAlreadyExist
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}
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func (f *FakeNodeGroup) Delete() error { return cloudprovider.ErrNotImplemented }
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func (f *FakeNodeGroup) Autoprovisioned() bool { return false }
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func (f *FakeNodeGroup) GetOptions(defaults config.NodeGroupAutoscalingOptions) (*config.NodeGroupAutoscalingOptions, error) {
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return nil, cloudprovider.ErrNotImplemented
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}
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func makeNodeInfo(cpu int64, memory int64, pods int64) *framework.NodeInfo {
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node := &apiv1.Node{
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Status: apiv1.NodeStatus{
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Capacity: apiv1.ResourceList{
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apiv1.ResourceCPU: *resource.NewMilliQuantity(cpu, resource.DecimalSI),
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apiv1.ResourceMemory: *resource.NewQuantity(memory, resource.DecimalSI),
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apiv1.ResourcePods: *resource.NewQuantity(pods, resource.DecimalSI),
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},
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},
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}
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node.Status.Allocatable = node.Status.Capacity
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SetNodeReadyState(node, true, time.Time{})
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nodeInfo := framework.NewTestNodeInfo(node)
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return nodeInfo
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}
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func TestLeastWaste(t *testing.T) {
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cpuPerPod := int64(500)
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memoryPerPod := int64(1000 * 1024 * 1024)
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e := NewFilter()
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balancedNodeInfo := makeNodeInfo(16*cpuPerPod, 16*memoryPerPod, 100)
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nodeMap := map[string]*framework.NodeInfo{"balanced": balancedNodeInfo}
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balancedOption := expander.Option{NodeGroup: &FakeNodeGroup{"balanced"}, NodeCount: 1}
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// Test without any pods, one node info
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ret := e.BestOptions([]expander.Option{balancedOption}, nodeMap)
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assert.Equal(t, ret, []expander.Option{balancedOption})
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pod := &apiv1.Pod{
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Spec: apiv1.PodSpec{
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Containers: []apiv1.Container{
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{
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Resources: apiv1.ResourceRequirements{
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Requests: apiv1.ResourceList{
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apiv1.ResourceCPU: *resource.NewMilliQuantity(cpuPerPod, resource.DecimalSI),
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apiv1.ResourceMemory: *resource.NewQuantity(memoryPerPod, resource.DecimalSI),
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},
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},
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},
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},
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},
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}
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// Test with one pod, one node info
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balancedOption.Pods = []*apiv1.Pod{pod}
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ret = e.BestOptions([]expander.Option{balancedOption}, nodeMap)
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assert.Equal(t, ret, []expander.Option{balancedOption})
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// Test with one pod, two node infos, one that has lots of RAM one that has less
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highmemNodeInfo := makeNodeInfo(16*cpuPerPod, 32*memoryPerPod, 100)
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nodeMap["highmem"] = highmemNodeInfo
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highmemOption := expander.Option{NodeGroup: &FakeNodeGroup{"highmem"}, NodeCount: 1, Pods: []*apiv1.Pod{pod}}
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ret = e.BestOptions([]expander.Option{balancedOption, highmemOption}, nodeMap)
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assert.Equal(t, ret, []expander.Option{balancedOption})
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// Test with one pod, three node infos, one that has lots of RAM one that has less, and one that has less CPU
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lowcpuNodeInfo := makeNodeInfo(8*cpuPerPod, 16*memoryPerPod, 100)
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nodeMap["lowcpu"] = lowcpuNodeInfo
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lowcpuOption := expander.Option{NodeGroup: &FakeNodeGroup{"lowcpu"}, NodeCount: 1, Pods: []*apiv1.Pod{pod}}
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ret = e.BestOptions([]expander.Option{balancedOption, highmemOption, lowcpuOption}, nodeMap)
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assert.Equal(t, ret, []expander.Option{lowcpuOption})
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}
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