mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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403 lines
12 KiB
Go
403 lines
12 KiB
Go
// +build linux
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/*
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Copyright 2017 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 cm
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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evictionapi "k8s.io/kubernetes/pkg/kubelet/eviction/api"
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)
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func TestNodeAllocatableReservationForScheduling(t *testing.T) {
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memoryEvictionThreshold := resource.MustParse("100Mi")
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cpuMemCases := []struct {
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kubeReserved v1.ResourceList
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systemReserved v1.ResourceList
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expected v1.ResourceList
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capacity v1.ResourceList
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hardThreshold evictionapi.ThresholdValue
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}{
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{
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kubeReserved: getResourceList("100m", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("150m", "150Mi"),
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},
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{
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kubeReserved: getResourceList("100m", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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hardThreshold: evictionapi.ThresholdValue{
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Quantity: &memoryEvictionThreshold,
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},
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("150m", "250Mi"),
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},
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{
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kubeReserved: getResourceList("100m", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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hardThreshold: evictionapi.ThresholdValue{
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Percentage: 0.05,
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},
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expected: getResourceList("150m", "694157320"),
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},
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{
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kubeReserved: v1.ResourceList{},
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systemReserved: v1.ResourceList{},
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("", ""),
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},
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{
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kubeReserved: getResourceList("", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("50m", "150Mi"),
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},
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{
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kubeReserved: getResourceList("50m", "100Mi"),
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systemReserved: getResourceList("", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("50m", "150Mi"),
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},
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{
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kubeReserved: getResourceList("", "100Mi"),
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systemReserved: getResourceList("", "50Mi"),
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capacity: getResourceList("10", ""),
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expected: getResourceList("", "150Mi"),
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},
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}
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for idx, tc := range cpuMemCases {
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nc := NodeConfig{
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NodeAllocatableConfig: NodeAllocatableConfig{
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KubeReserved: tc.kubeReserved,
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SystemReserved: tc.systemReserved,
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HardEvictionThresholds: []evictionapi.Threshold{
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{
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Signal: evictionapi.SignalMemoryAvailable,
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Operator: evictionapi.OpLessThan,
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Value: tc.hardThreshold,
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},
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},
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},
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}
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cm := &containerManagerImpl{
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NodeConfig: nc,
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capacity: tc.capacity,
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}
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for k, v := range cm.GetNodeAllocatableReservation() {
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expected, exists := tc.expected[k]
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assert.True(t, exists, "test case %d expected resource %q", idx+1, k)
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assert.Equal(t, expected.MilliValue(), v.MilliValue(), "test case %d failed for resource %q", idx+1, k)
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}
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}
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ephemeralStorageEvictionThreshold := resource.MustParse("100Mi")
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ephemeralStorageTestCases := []struct {
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kubeReserved v1.ResourceList
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expected v1.ResourceList
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capacity v1.ResourceList
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hardThreshold evictionapi.ThresholdValue
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}{
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{
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kubeReserved: getEphemeralStorageResourceList("100Mi"),
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capacity: getEphemeralStorageResourceList("10Gi"),
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expected: getEphemeralStorageResourceList("100Mi"),
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},
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{
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kubeReserved: getEphemeralStorageResourceList("100Mi"),
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hardThreshold: evictionapi.ThresholdValue{
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Quantity: &ephemeralStorageEvictionThreshold,
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},
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capacity: getEphemeralStorageResourceList("10Gi"),
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expected: getEphemeralStorageResourceList("200Mi"),
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},
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{
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kubeReserved: getEphemeralStorageResourceList("150Mi"),
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capacity: getEphemeralStorageResourceList("10Gi"),
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hardThreshold: evictionapi.ThresholdValue{
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Percentage: 0.05,
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},
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expected: getEphemeralStorageResourceList("694157320"),
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},
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{
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kubeReserved: v1.ResourceList{},
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capacity: getEphemeralStorageResourceList("10Gi"),
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expected: getEphemeralStorageResourceList(""),
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},
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}
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for idx, tc := range ephemeralStorageTestCases {
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nc := NodeConfig{
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NodeAllocatableConfig: NodeAllocatableConfig{
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KubeReserved: tc.kubeReserved,
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HardEvictionThresholds: []evictionapi.Threshold{
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{
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Signal: evictionapi.SignalNodeFsAvailable,
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Operator: evictionapi.OpLessThan,
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Value: tc.hardThreshold,
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},
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},
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},
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}
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cm := &containerManagerImpl{
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NodeConfig: nc,
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capacity: tc.capacity,
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}
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for k, v := range cm.GetNodeAllocatableReservation() {
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expected, exists := tc.expected[k]
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assert.True(t, exists, "test case %d expected resource %q", idx+1, k)
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assert.Equal(t, expected.MilliValue(), v.MilliValue(), "test case %d failed for resource %q", idx+1, k)
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}
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}
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}
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func TestNodeAllocatableForEnforcement(t *testing.T) {
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memoryEvictionThreshold := resource.MustParse("100Mi")
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testCases := []struct {
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kubeReserved v1.ResourceList
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systemReserved v1.ResourceList
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capacity v1.ResourceList
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expected v1.ResourceList
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hardThreshold evictionapi.ThresholdValue
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}{
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{
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kubeReserved: getResourceList("100m", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("9850m", "10090Mi"),
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},
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{
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kubeReserved: getResourceList("100m", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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hardThreshold: evictionapi.ThresholdValue{
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Quantity: &memoryEvictionThreshold,
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},
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("9850m", "10090Mi"),
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},
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{
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kubeReserved: getResourceList("100m", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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hardThreshold: evictionapi.ThresholdValue{
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Percentage: 0.05,
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},
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("9850m", "10090Mi"),
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},
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{
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kubeReserved: v1.ResourceList{},
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systemReserved: v1.ResourceList{},
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("10", "10Gi"),
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},
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{
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kubeReserved: getResourceList("", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("9950m", "10090Mi"),
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},
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{
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kubeReserved: getResourceList("50m", "100Mi"),
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systemReserved: getResourceList("", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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expected: getResourceList("9950m", "10090Mi"),
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},
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{
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kubeReserved: getResourceList("", "100Mi"),
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systemReserved: getResourceList("", "50Mi"),
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capacity: getResourceList("10", ""),
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expected: getResourceList("10", ""),
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},
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}
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for idx, tc := range testCases {
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nc := NodeConfig{
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NodeAllocatableConfig: NodeAllocatableConfig{
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KubeReserved: tc.kubeReserved,
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SystemReserved: tc.systemReserved,
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HardEvictionThresholds: []evictionapi.Threshold{
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{
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Signal: evictionapi.SignalMemoryAvailable,
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Operator: evictionapi.OpLessThan,
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Value: tc.hardThreshold,
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},
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},
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},
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}
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cm := &containerManagerImpl{
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NodeConfig: nc,
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capacity: tc.capacity,
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}
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for k, v := range cm.getNodeAllocatableAbsolute() {
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expected, exists := tc.expected[k]
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assert.True(t, exists)
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assert.Equal(t, expected.MilliValue(), v.MilliValue(), "test case %d failed for resource %q", idx+1, k)
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}
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}
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}
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func TestNodeAllocatableInputValidation(t *testing.T) {
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memoryEvictionThreshold := resource.MustParse("100Mi")
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highMemoryEvictionThreshold := resource.MustParse("2Gi")
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cpuMemTestCases := []struct {
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kubeReserved v1.ResourceList
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systemReserved v1.ResourceList
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capacity v1.ResourceList
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hardThreshold evictionapi.ThresholdValue
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invalidConfiguration bool
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}{
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{
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kubeReserved: getResourceList("100m", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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},
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{
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kubeReserved: getResourceList("100m", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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hardThreshold: evictionapi.ThresholdValue{
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Quantity: &memoryEvictionThreshold,
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},
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capacity: getResourceList("10", "10Gi"),
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},
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{
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kubeReserved: getResourceList("100m", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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hardThreshold: evictionapi.ThresholdValue{
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Percentage: 0.05,
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},
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capacity: getResourceList("10", "10Gi"),
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},
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{
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kubeReserved: v1.ResourceList{},
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systemReserved: v1.ResourceList{},
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capacity: getResourceList("10", "10Gi"),
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},
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{
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kubeReserved: getResourceList("", "100Mi"),
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systemReserved: getResourceList("50m", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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},
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{
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kubeReserved: getResourceList("50m", "100Mi"),
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systemReserved: getResourceList("", "50Mi"),
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capacity: getResourceList("10", "10Gi"),
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},
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{
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kubeReserved: getResourceList("", "100Mi"),
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systemReserved: getResourceList("", "50Mi"),
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capacity: getResourceList("10", ""),
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},
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{
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kubeReserved: getResourceList("5", "10Gi"),
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systemReserved: getResourceList("5", "10Gi"),
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hardThreshold: evictionapi.ThresholdValue{
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Quantity: &highMemoryEvictionThreshold,
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},
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capacity: getResourceList("10", "11Gi"),
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invalidConfiguration: true,
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},
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}
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for _, tc := range cpuMemTestCases {
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nc := NodeConfig{
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NodeAllocatableConfig: NodeAllocatableConfig{
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KubeReserved: tc.kubeReserved,
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SystemReserved: tc.systemReserved,
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HardEvictionThresholds: []evictionapi.Threshold{
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{
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Signal: evictionapi.SignalMemoryAvailable,
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Operator: evictionapi.OpLessThan,
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Value: tc.hardThreshold,
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},
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},
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},
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}
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cm := &containerManagerImpl{
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NodeConfig: nc,
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capacity: tc.capacity,
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}
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err := cm.validateNodeAllocatable()
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if err == nil && tc.invalidConfiguration {
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t.Fatalf("Expected invalid node allocatable configuration")
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} else if err != nil && !tc.invalidConfiguration {
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t.Fatalf("Expected valid node allocatable configuration: %v", err)
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}
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}
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ephemeralStorageEvictionThreshold := resource.MustParse("100Mi")
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ephemeralStorageTestCases := []struct {
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kubeReserved v1.ResourceList
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capacity v1.ResourceList
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hardThreshold evictionapi.ThresholdValue
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invalidConfiguration bool
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}{
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{
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kubeReserved: getEphemeralStorageResourceList("100Mi"),
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capacity: getEphemeralStorageResourceList("500Mi"),
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},
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{
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kubeReserved: getEphemeralStorageResourceList("20Gi"),
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hardThreshold: evictionapi.ThresholdValue{
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Quantity: &ephemeralStorageEvictionThreshold,
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},
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capacity: getEphemeralStorageResourceList("20Gi"),
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invalidConfiguration: true,
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},
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}
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for _, tc := range ephemeralStorageTestCases {
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nc := NodeConfig{
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NodeAllocatableConfig: NodeAllocatableConfig{
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KubeReserved: tc.kubeReserved,
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HardEvictionThresholds: []evictionapi.Threshold{
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{
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Signal: evictionapi.SignalNodeFsAvailable,
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Operator: evictionapi.OpLessThan,
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Value: tc.hardThreshold,
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},
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},
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},
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}
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cm := &containerManagerImpl{
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NodeConfig: nc,
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capacity: tc.capacity,
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}
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err := cm.validateNodeAllocatable()
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if err == nil && tc.invalidConfiguration {
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t.Fatalf("Expected invalid node allocatable configuration")
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} else if err != nil && !tc.invalidConfiguration {
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t.Fatalf("Expected valid node allocatable configuration: %v", err)
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}
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}
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}
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// getEphemeralStorageResourceList returns a ResourceList with the
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// specified ephemeral storage resource values
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func getEphemeralStorageResourceList(storage string) v1.ResourceList {
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res := v1.ResourceList{}
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if storage != "" {
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res[v1.ResourceEphemeralStorage] = resource.MustParse(storage)
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}
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return res
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}
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