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adding an e2e for GPUs

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Signed-off-by: Vishnu kannan <vishnuk@google.com>
This commit is contained in:
Vishnu kannan 2017-02-26 21:40:15 -08:00
parent 69acb02394
commit 318f4e102a
7 changed files with 216 additions and 1 deletions
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1
hack/verify-flags/known-flags.txt
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@ -686,3 +686,4 @@ windows-line-endings
www-prefix
zone-id
zone-name

4
pkg/kubelet/BUILD
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@ -58,6 +58,8 @@ go_library(
"//pkg/kubelet/envvars:go_default_library",
"//pkg/kubelet/events:go_default_library",
"//pkg/kubelet/eviction:go_default_library",
"//pkg/kubelet/gpu:go_default_library",
"//pkg/kubelet/gpu/nvidia:go_default_library",
"//pkg/kubelet/images:go_default_library",
"//pkg/kubelet/kuberuntime:go_default_library",
"//pkg/kubelet/lifecycle:go_default_library",
@ -169,6 +171,7 @@ go_test(
"//pkg/kubelet/container:go_default_library",
"//pkg/kubelet/container/testing:go_default_library",
"//pkg/kubelet/eviction:go_default_library",
"//pkg/kubelet/gpu:go_default_library",
"//pkg/kubelet/images:go_default_library",
"//pkg/kubelet/lifecycle:go_default_library",
"//pkg/kubelet/network:go_default_library",
@ -246,6 +249,7 @@ filegroup(
"//pkg/kubelet/envvars:all-srcs",
"//pkg/kubelet/events:all-srcs",
"//pkg/kubelet/eviction:all-srcs",
"//pkg/kubelet/gpu:all-srcs",
"//pkg/kubelet/images:all-srcs",
"//pkg/kubelet/kuberuntime:all-srcs",
"//pkg/kubelet/leaky:all-srcs",

34
pkg/kubelet/gpu/BUILD Normal file
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@ -0,0 +1,34 @@
package(default_visibility = ["//visibility:public"])
licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
)
go_library(
name = "go_default_library",
srcs = [
"gpu_manager_stub.go",
"types.go",
],
tags = ["automanaged"],
deps = ["//pkg/api/v1:go_default_library"],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [
":package-srcs",
"//pkg/kubelet/gpu/nvidia:all-srcs",
],
tags = ["automanaged"],
)

38
pkg/kubelet/gpu/nvidia/BUILD Normal file
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@ -0,0 +1,38 @@
package(default_visibility = ["//visibility:public"])
licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
)
go_library(
name = "go_default_library",
srcs = [
"helpers.go",
"nvidia_gpu_manager.go",
],
tags = ["automanaged"],
deps = [
"//pkg/api/v1:go_default_library",
"//pkg/kubelet/dockertools:go_default_library",
"//pkg/kubelet/gpu:go_default_library",
"//vendor:github.com/golang/glog",
"//vendor:k8s.io/apimachinery/pkg/api/resource",
"//vendor:k8s.io/apimachinery/pkg/util/sets",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)

2
test/e2e/framework/pods.go
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@ -224,7 +224,7 @@ func (c *PodClient) WaitForErrorEventOrSuccess(pod *v1.Pod) (*v1.Event, error) {
return ev, err
}
// MatchContainerOutput gest output of a container and match expected regexp in the output.
// MatchContainerOutput gets output of a container and match expected regexp in the output.
func (c *PodClient) MatchContainerOutput(name string, containerName string, expectedRegexp string) error {
f := c.f
output, err := GetPodLogs(f.ClientSet, f.Namespace.Name, name, containerName)

3
test/e2e_node/BUILD
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@ -14,6 +14,7 @@ go_library(
"benchmark_util.go",
"container.go",
"doc.go",
"gpus.go",
"image_list.go",
"resource_collector.go",
"simple_mount.go",
@ -37,12 +38,14 @@ go_library(
"//vendor:github.com/onsi/gomega",
"//vendor:github.com/opencontainers/runc/libcontainer/cgroups",
"//vendor:k8s.io/apimachinery/pkg/api/errors",
"//vendor:k8s.io/apimachinery/pkg/api/resource",
"//vendor:k8s.io/apimachinery/pkg/apis/meta/v1",
"//vendor:k8s.io/apimachinery/pkg/labels",
"//vendor:k8s.io/apimachinery/pkg/util/runtime",
"//vendor:k8s.io/apimachinery/pkg/util/sets",
"//vendor:k8s.io/apimachinery/pkg/util/uuid",
"//vendor:k8s.io/apimachinery/pkg/util/wait",
"//vendor:k8s.io/client-go/pkg/api",
],
)

135
test/e2e_node/gpus.go Normal file
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@ -0,0 +1,135 @@
/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package e2e_node
import (
"fmt"
"time"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/pkg/api"
"k8s.io/kubernetes/pkg/api/v1"
"k8s.io/kubernetes/pkg/apis/componentconfig"
"k8s.io/kubernetes/test/e2e/framework"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
const acceleratorsFeatureGate = "Accelerators=true"
// Serial because the test updates kubelet configuration.
var _ = framework.KubeDescribe("GPU [Serial]", func() {
f := framework.NewDefaultFramework("gpu-test")
Context("attempt to use GPUs if available", func() {
It("setup the node and create pods to test gpus", func() {
By("ensuring that dynamic kubelet configuration is enabled")
enabled, err := isKubeletConfigEnabled(f)
framework.ExpectNoError(err)
if !enabled {
Skip("Dynamic Kubelet configuration is not enabled. Skipping test.")
}
By("enabling support for GPUs")
var oldCfg *componentconfig.KubeletConfiguration
defer func() {
if oldCfg != nil {
framework.ExpectNoError(setKubeletConfiguration(f, oldCfg))
}
}()
oldCfg, err = getCurrentKubeletConfig()
framework.ExpectNoError(err)
clone, err := api.Scheme.DeepCopy(oldCfg)
framework.ExpectNoError(err)
newCfg := clone.(*componentconfig.KubeletConfiguration)
if newCfg.FeatureGates != "" {
newCfg.FeatureGates = fmt.Sprintf("%s,%s", acceleratorsFeatureGate, newCfg.FeatureGates)
} else {
newCfg.FeatureGates = acceleratorsFeatureGate
}
framework.ExpectNoError(setKubeletConfiguration(f, newCfg))
By("Getting the local node object from the api server")
nodeList, err := f.ClientSet.Core().Nodes().List(metav1.ListOptions{})
framework.ExpectNoError(err, "getting node list")
Expect(len(nodeList.Items)).To(Equal(1))
node := nodeList.Items[0]
gpusAvailable := node.Status.Capacity.NvidiaGPU()
By("Skipping the test if GPUs aren't available")
if gpusAvailable.IsZero() {
Skip("No GPUs available on local node. Skipping test.")
}
By("Creating a pod that will consume all GPUs")
podSuccess := makePod(gpusAvailable.Value(), "gpus-success")
podSuccess = f.PodClient().CreateSync(podSuccess)
By("Checking if the pod outputted Success to its logs")
framework.ExpectNoError(f.PodClient().MatchContainerOutput(podSuccess.Name, podSuccess.Name, "Success"))
By("Creating a new pod requesting a GPU and noticing that it is rejected by the Kubelet")
podFailure := makePod(1, "gpu-failure")
framework.WaitForPodCondition(f.ClientSet, f.Namespace.Name, podFailure.Name, "pod rejected", framework.PodStartTimeout, func(pod *v1.Pod) (bool, error) {
if pod.Status.Phase == v1.PodFailed {
return true, nil
}
return false, nil
})
By("stopping the original Pod with GPUs")
gp := int64(0)
deleteOptions := metav1.DeleteOptions{
GracePeriodSeconds: &gp,
}
f.PodClient().DeleteSync(podSuccess.Name, &deleteOptions, 30*time.Second)
By("attempting to start the failed pod again")
f.PodClient().DeleteSync(podFailure.Name, &deleteOptions, 10*time.Second)
podFailure = f.PodClient().CreateSync(podFailure)
By("Checking if the pod outputted Success to its logs")
framework.ExpectNoError(f.PodClient().MatchContainerOutput(podFailure.Name, podFailure.Name, "Success"))
})
})
})
func makePod(gpus int64, name string) *v1.Pod {
resources := v1.ResourceRequirements{
Limits: v1.ResourceList{
v1.ResourceNvidiaGPU: *resource.NewQuantity(gpus, resource.DecimalSI),
},
}
gpuverificationCmd := fmt.Sprintf("if [[ %d -ne $(ls /dev/ | egrep '^nvidia[0-9]+$') ]]; then exit 1; fi; echo Success; sleep 10240 ", gpus)
return &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: name,
},
Spec: v1.PodSpec{
Containers: []v1.Container{
{
Image: "gcr.io/google_containers/busybox:1.24",
Name: name,
Command: []string{"sh", "-c", gpuverificationCmd},
Resources: resources,
},
},
},
}
}