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memory manager: add e2e test to run guaranteed pod with init containers

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Signed-off-by: Pawel Rapacz <p.rapacz@partner.samsung.com>
This commit is contained in:
Pawel Rapacz 2020-11-04 19:21:57 +01:00 committed by Artyom Lukianov
parent f3d4ac2f7e
commit 606fea29f5
1 changed files with 89 additions and 31 deletions
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120
test/e2e_node/memory_manager_test.go
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@ -60,12 +60,11 @@ type memoryManagerCtnAttributes struct {
hugepages2Mi string
}
// makeCPUMangerPod returns a pod with the provided ctnAttributes.
func makeMemoryManagerPod(podName string, ctnAttributes []memoryManagerCtnAttributes) *v1.Pod {
// makeMemoryManagerContainers returns slice of containers with provided attributes and indicator of hugepages mount needed for those.
func makeMemoryManagerContainers(ctnCmd string, ctnAttributes []memoryManagerCtnAttributes) ([]v1.Container, bool) {
hugepagesMount := false
var containers []v1.Container
for _, ctnAttr := range ctnAttributes {
memsetCmd := fmt.Sprintf("grep Mems_allowed_list /proc/self/status | cut -f2 && sleep 1d")
ctn := v1.Container{
Name: ctnAttr.ctnName,
Image: busyboxImage,
@ -75,7 +74,7 @@ func makeMemoryManagerPod(podName string, ctnAttributes []memoryManagerCtnAttrib
v1.ResourceMemory: resource.MustParse(ctnAttr.memory),
},
},
Command: []string{"sh", "-c", memsetCmd},
Command: []string{"sh", "-c", ctnCmd},
}
if ctnAttr.hugepages2Mi != "" {
hugepagesMount = true
@ -92,13 +91,28 @@ func makeMemoryManagerPod(podName string, ctnAttributes []memoryManagerCtnAttrib
containers = append(containers, ctn)
}
return containers, hugepagesMount
}
// makeMemoryMangerPod returns a pod with the provided ctnAttributes.
func makeMemoryManagerPod(podName string, initCtnAttributes, ctnAttributes []memoryManagerCtnAttributes) *v1.Pod {
hugepagesMount := false
memsetCmd := fmt.Sprintf("grep Mems_allowed_list /proc/self/status | cut -f2")
memsetSleepCmd := memsetCmd + "&& sleep 1d"
var containers, initContainers []v1.Container
if len(initCtnAttributes) > 0 {
initContainers, _ = makeMemoryManagerContainers(memsetCmd, initCtnAttributes)
}
containers, hugepagesMount = makeMemoryManagerContainers(memsetSleepCmd, ctnAttributes)
pod := &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: podName,
},
Spec: v1.PodSpec{
RestartPolicy: v1.RestartPolicyNever,
Containers: containers,
RestartPolicy: v1.RestartPolicyNever,
Containers: containers,
InitContainers: initContainers,
},
}
@ -216,13 +230,13 @@ func getAllNUMANodes() []int {
var _ = SIGDescribe("Memory Manager [Serial] [Feature:MemoryManager][NodeAlphaFeature:MemoryManager]", func() {
// TODO: add more complex tests that will include interaction between CPUManager, MemoryManager and TopologyManager
var (
allNUMANodes []int
ctnParams []memoryManagerCtnAttributes
is2MiHugepagesSupported *bool
isMultiNUMASupported *bool
kubeParams *kubeletParams
oldCfg *kubeletconfig.KubeletConfiguration
testPod *v1.Pod
allNUMANodes []int
ctnParams, initCtnParams []memoryManagerCtnAttributes
is2MiHugepagesSupported *bool
isMultiNUMASupported *bool
kubeParams *kubeletParams
oldCfg *kubeletconfig.KubeletConfiguration
testPod *v1.Pod
)
f := framework.NewDefaultFramework("memory-manager-test")
@ -287,7 +301,7 @@ var _ = SIGDescribe("Memory Manager [Serial] [Feature:MemoryManager][NodeAlphaFe
}
}
testPod = makeMemoryManagerPod(ctnParams[0].ctnName, ctnParams)
testPod = makeMemoryManagerPod(ctnParams[0].ctnName, initCtnParams, ctnParams)
})
ginkgo.JustAfterEach(func() {
@ -309,27 +323,71 @@ var _ = SIGDescribe("Memory Manager [Serial] [Feature:MemoryManager][NodeAlphaFe
tmpParams := *defaultKubeParams
tmpParams.memoryManagerPolicy = staticPolicy
kubeParams = &tmpParams
// override pod parameters
ctnParams = []memoryManagerCtnAttributes{
{
ctnName: "memory-manager-static",
cpus: "100m",
memory: "128Mi",
},
}
})
ginkgo.It("should succeed to start the pod", func() {
ginkgo.By("Running the test pod")
testPod = f.PodClient().CreateSync(testPod)
ginkgo.JustAfterEach(func() {
// reset containers attributes
ctnParams = []memoryManagerCtnAttributes{}
initCtnParams = []memoryManagerCtnAttributes{}
})
// it no taste to verify NUMA pinning when the node has only one NUMA node
if !*isMultiNUMASupported {
return
}
ginkgo.When("pod has init and app containers", func() {
ginkgo.BeforeEach(func() {
// override containers parameters
ctnParams = []memoryManagerCtnAttributes{
{
ctnName: "memory-manager-static",
cpus: "100m",
memory: "128Mi",
},
}
// override init container parameters
initCtnParams = []memoryManagerCtnAttributes{
{
ctnName: "init-memory-manager-static",
cpus: "100m",
memory: "128Mi",
},
}
})
verifyMemoryPinning([]int{0})
ginkgo.It("should succeed to start the pod", func() {
ginkgo.By("Running the test pod")
testPod = f.PodClient().CreateSync(testPod)
// it no taste to verify NUMA pinning when the node has only one NUMA node
if !*isMultiNUMASupported {
return
}
verifyMemoryPinning([]int{0})
})
})
ginkgo.When("pod has only app containers", func() {
ginkgo.BeforeEach(func() {
// override containers parameters
ctnParams = []memoryManagerCtnAttributes{
{
ctnName: "memory-manager-static",
cpus: "100m",
memory: "128Mi",
},
}
})
ginkgo.It("should succeed to start the pod", func() {
ginkgo.By("Running the test pod")
testPod = f.PodClient().CreateSync(testPod)
// it no taste to verify NUMA pinning when the node has only one NUMA node
if !*isMultiNUMASupported {
return
}
verifyMemoryPinning([]int{0})
})
})
})