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Expect NoSwap on NodeConformance, test LimitedSwap only in serial tests

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Signed-off-by: Itamar Holder <iholder@redhat.com>
This commit is contained in:
Itamar Holder 2024-03-12 13:36:54 +02:00
parent ab5f84e8ed
commit e9b1a5e185
1 changed files with 36 additions and 25 deletions
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61
test/e2e_node/swap_test.go
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@ -71,22 +71,9 @@ var _ = SIGDescribe("Swap", "[LinuxOnly]", nodefeature.Swap, func() {
pod = runPodAndWaitUntilScheduled(f, pod)
gomega.Expect(isPodCgroupV2(f, pod)).To(gomega.BeTrueBecause("cgroup v2 is required for swap"))
gomega.Expect(getSwapBehavior()).To(gomega.Or(gomega.Equal(types.NoSwap), gomega.BeEmpty()), "NodeConformance is expected to run with NoSwap")
switch swapBehavior := getSwapBehavior(); swapBehavior {
case types.LimitedSwap:
if qosClass != v1.PodQOSBurstable || memoryRequestEqualLimit {
expectNoSwap(f, pod)
} else {
expectedSwapLimit := calcSwapForBurstablePod(f, pod)
expectLimitedSwap(f, pod, expectedSwapLimit)
}
case types.NoSwap, "":
expectNoSwap(f, pod)
default:
gomega.Expect(swapBehavior).To(gomega.Or(gomega.Equal(types.LimitedSwap), gomega.Equal(types.NoSwap)), "unknown swap behavior")
}
expectNoSwap(f, pod)
},
ginkgo.Entry("QOS Best-effort", v1.PodQOSBestEffort, false),
ginkgo.Entry("QOS Burstable", v1.PodQOSBurstable, false),
@ -96,6 +83,39 @@ var _ = SIGDescribe("Swap", "[LinuxOnly]", nodefeature.Swap, func() {
})
f.Context(framework.WithSerial(), func() {
enableLimitedSwap := func(ctx context.Context, initialConfig *config.KubeletConfiguration) {
msg := "swap behavior is already set to LimitedSwap"
if swapBehavior := initialConfig.MemorySwap.SwapBehavior; swapBehavior != types.LimitedSwap {
initialConfig.MemorySwap.SwapBehavior = types.LimitedSwap
msg = "setting swap behavior to LimitedSwap"
}
ginkgo.By(msg)
}
f.Context("Basic functionality", func() {
tempSetCurrentKubeletConfig(f, enableLimitedSwap)
ginkgo.DescribeTable("with configuration", func(qosClass v1.PodQOSClass, memoryRequestEqualLimit bool) {
ginkgo.By(fmt.Sprintf("Creating a pod of QOS class %s. memoryRequestEqualLimit: %t", qosClass, memoryRequestEqualLimit))
pod := getSwapTestPod(f, qosClass, memoryRequestEqualLimit)
pod = runPodAndWaitUntilScheduled(f, pod)
gomega.Expect(isPodCgroupV2(f, pod)).To(gomega.BeTrueBecause("cgroup v2 is required for swap"))
gomega.Expect(getSwapBehavior()).To(gomega.Equal(types.LimitedSwap))
expectedSwapLimit := calcSwapForBurstablePod(f, pod)
expectLimitedSwap(f, pod, expectedSwapLimit)
},
ginkgo.Entry("QOS Best-effort", v1.PodQOSBestEffort, false),
ginkgo.Entry("QOS Burstable", v1.PodQOSBurstable, false),
ginkgo.Entry("QOS Burstable with memory request equals to limit", v1.PodQOSBurstable, true),
ginkgo.Entry("QOS Guaranteed", v1.PodQOSGuaranteed, false),
)
})
// These tests assume the following, and will fail otherwise:
// - The node is provisioned with swap
// - The node is configured with cgroup v2
@ -138,16 +158,7 @@ var _ = SIGDescribe("Swap", "[LinuxOnly]", nodefeature.Swap, func() {
})
ginkgo.Context("LimitedSwap", func() {
tempSetCurrentKubeletConfig(f, func(ctx context.Context, initialConfig *config.KubeletConfiguration) {
msg := "swap behavior is already set to LimitedSwap"
if swapBehavior := initialConfig.MemorySwap.SwapBehavior; swapBehavior != types.LimitedSwap {
initialConfig.MemorySwap.SwapBehavior = types.LimitedSwap
msg = "setting swap behavior to LimitedSwap"
}
ginkgo.By(msg)
})
tempSetCurrentKubeletConfig(f, enableLimitedSwap)
getRequestBySwapLimit := func(swapPercentage int64) *resource.Quantity {
gomega.ExpectWithOffset(1, swapPercentage).To(gomega.And(