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e2e: topomgr: add test infra

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This patch all the testing infra and utilities needed
to run e2e topology manager tests. This include setup
a guaranteed pod which needs some devices.

The simplest real device available for the purpose
are the SRIOV devices, hence we use them.

This patch pulls the SRIOV device plugin from
the official, yet external, repository.
We do it as close as possible for the nvidia GPU plugin.

This patch also performs minor refactoring for some
test framework utilities, needed to support the new
e2e tests.

Finally, we add an empty e2e topology manager test,
to be completed by the next patch.

Signed-off-by: Francesco Romani <fromani@redhat.com>
This commit is contained in:
Francesco Romani
2020-01-17 13:31:11 +01:00
parent 1fdf262137
commit cd7e3d626c
11 changed files with 385 additions and 12 deletions
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25
test/e2e_node/image_list.go
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@@ -31,6 +31,7 @@ import (
commontest "k8s.io/kubernetes/test/e2e/common"
"k8s.io/kubernetes/test/e2e/framework"
"k8s.io/kubernetes/test/e2e/framework/gpu"
"k8s.io/kubernetes/test/e2e/framework/testfiles"
imageutils "k8s.io/kubernetes/test/utils/image"
)
@@ -68,6 +69,7 @@ func updateImageWhiteList() {
framework.ImageWhiteList = NodeImageWhiteList.Union(commontest.CommonImageWhiteList)
// Images from extra envs
framework.ImageWhiteList.Insert(getNodeProblemDetectorImage())
framework.ImageWhiteList.Insert(getSRIOVDevicePluginImage())
}
func getNodeProblemDetectorImage() string {
@@ -184,3 +186,26 @@ func getGPUDevicePluginImage() string {
}
return ds.Spec.Template.Spec.Containers[0].Image
}
// getSRIOVDevicePluginImage returns the image of SRIOV device plugin.
func getSRIOVDevicePluginImage() string {
data, err := testfiles.Read(SRIOVDevicePluginDSYAML)
if err != nil {
klog.Errorf("Failed to read the device plugin manifest: %v", err)
return ""
}
ds, err := framework.DsFromData(data)
if err != nil {
klog.Errorf("Failed to parse the device plugin image: %v", err)
return ""
}
if ds == nil {
klog.Errorf("Failed to parse the device plugin image: the extracted DaemonSet is nil")
return ""
}
if len(ds.Spec.Template.Spec.Containers) < 1 {
klog.Errorf("Failed to parse the device plugin image: cannot extract the container from YAML")
return ""
}
return ds.Spec.Template.Spec.Containers[0].Image
}