Commit Graph

8465 Commits

Author SHA1 Message Date
Kubernetes Submit Queue
bababe08f6 Merge pull request #65854 from cofyc/statefulset_with_podaffinity
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Add local volume pod affinity tests.

**What this PR does / why we need it**:

Add local volume pod affinity tests.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #56100 (with already merged prs #59682, #60260)

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2018-07-10 20:00:12 -07:00
Matthew Wong
c968beceb1 Re-enable write-read pv check in volume provisioning tests 2018-07-10 16:20:58 -04:00
Kubernetes Submit Queue
a8777c26fa Merge pull request #64695 from krzysied/etcd_metrics
Automatic merge from submit-queue (batch tested with PRs 64695, 65982, 65908). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Collecting etcd metrics

**What this PR does / why we need it**:
Adding etcd metrics to performance test log.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
ref #64030

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2018-07-10 08:55:03 -07:00
Matthew Wong
000aea63ca Fix wrong flexvolume dir on gce ubuntu 2018-07-09 15:34:19 -04:00
Yecheng Fu
c3715da13f Add local volume pod affinity tests. 2018-07-08 02:36:49 +00:00
Kubernetes Submit Queue
4d98735562 Merge pull request #65929 from yujuhong/add-warning
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Add a README in test/e2e/node with a warning

**What this PR does / why we need it**:

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2018-07-07 18:56:39 -07:00
Yu-Ju Hong
e5bd6b1e8e Add a README in test/e2e/node with a warning 2018-07-06 16:48:35 -07:00
Srini Brahmaroutu
dbeb16c221 Adding details to Conformance Tests using RFC 2119 standards. 2018-07-05 16:02:59 -07:00
Kubernetes Submit Queue
c7d4931dad Merge pull request #65710 from sttts/sttts-unified-apiserver-testserver
Automatic merge from submit-queue (batch tested with PRs 64911, 65710). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

apiextensions-apiserver: add pkg/cmd/server/testing pkg for integration tests

In analogy to kube-apiserver, this implements a uniform apiextensions-apiserver for integration tests which can be started using customized flags.
2018-07-05 11:39:03 -07:00
Dr. Stefan Schimanski
42f1e81488 apiextensions-apiserver: add pkg/cmd/server/testing pkg for integration bootstrapping
In analogy to kube-apiserver.
2018-07-05 17:34:16 +02:00
Aleksandra Malinowska
3cd3ee3eb8 Fix field name in NAP tests 2018-07-05 14:59:10 +02:00
Kubernetes Submit Queue
9f3e2010dc Merge pull request #65117 from mkimuram/issue/56803v2
Automatic merge from submit-queue (batch tested with PRs 64593, 65117, 65629, 65827, 65686). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Add e2e tests for volumeMode of persistent volume

This set of e2e tests is to confirm that persistent volume works well for all volumeModes.
Coverage of the tests are shown in the figure of [Test cases], below.

Once implementation policy is confirmed to be good, we can add plugins and test cases to this.
[Test cases]
```
 #   plugin      volumeMode    Test case                                                Expectation
--- ---------- -------------- ------------------------------------------------------ ------------
 1    iSCSI      Block         (a) Create Pod with PV and confirm Read/Write to PV    Success
 2    iSCSI      Block         (b) Create Pod and restart kubelet and confirm PV      Success
 3    iSCSI      Block         (c) Create Pod and restart kubelet while deleting PV   Success
 4    iSCSI      FileSystem    (a) Create Pod with PV and confirm Read/Write to PV    Success
 5    iSCSI      FileSystem    (b) Create Pod and restart kubelet and confirm PV      Success
 6    iSCSI      FileSystem    (c) Create Pod and restart kubelet while deleting PV   Success
 7    RBD        Block         (a) Create Pod with PV and confirm Read/Write to PV    Success
 8    RBD        Block         (b) Create Pod and restart kubelet and confirm PV      Success
 9    RBD        Block         (c) Create Pod and restart kubelet while deleting PV   Success
10    RBD        FileSystem    (a) Create Pod with PV and confirm Read/Write to PV    Success
11    RBD        FileSystem    (b) Create Pod and restart kubelet and confirm PV      Success
12    RBD        FileSystem    (c) Create Pod and restart kubelet while deleting PV   Success
13    CephFS     Block         (a) Create Pod with PV and confirm Read/Write to PV    Fail
14    CephFS     FileSystem    (a) Create Pod with PV and confirm Read/Write to PV    Success
15    CephFS     FileSystem    (b) Create Pod and restart kubelet and confirm PV      Success
16    CephFS     FileSystem    (c) Create Pod and restart kubelet while deleting PV   Success
17    NFS        Block         (a) Create Pod with PV and confirm Read/Write to PV    Fail
18    NFS        FileSystem    (a) Create Pod with PV and confirm Read/Write to PV    Success
19    NFS        FileSystem    (b) Create Pod and restart kubelet and confirm PV      Success
20    NFS        FileSystem    (c) Create Pod and restart kubelet while deleting PV   Success
```




**What this PR does / why we need it**:

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #56803

**Special notes for your reviewer**:
/sig storage
@gnufied  @rootfs @jsafrane @jeffvance 

This PR is intend to reflect the comments for the below PR.
https://github.com/kubernetes/kubernetes/pull/56804

**Release note**:

```release-note
NONE
```
2018-07-04 18:52:10 -07:00
Kubernetes Submit Queue
01624c1b68 Merge pull request #64350 from jarrpa/statefulset-pvc-test
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Add StatefulSet rollback and rolling update test with PVCs

**What this PR does / why we need it**:
Adds a StatefulSet e2e test for testing rolling upgrades and rollbacks on a StatefulSet using PVCs.

**Which issue(s) this PR fixes**:
Fixes #63940

**Release note**:

```
NONE
```

Signed-off-by: Jose A. Rivera <jarrpa@redhat.com>
2018-07-04 15:01:08 -07:00
cfshang
1da598457c typo fix: fromat->format 2018-07-03 22:52:18 +08:00
Kubernetes Submit Queue
5fa5b7d6fc Merge pull request #65599 from chrisohaver/splitsvcs
Automatic merge from submit-queue (batch tested with PRs 65348, 65599, 65635, 65688, 65691). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

distribute services between 2 namespaces in e2e DNS scale services test

**What this PR does / why we need it**:

What: Alters the dns scale test, to distribute the scale load of 10K services between 2 namespaces, so that the test does not fail to create the services.
Why: To allow the dns test to proceed.

Expect to Fix #64774 but wont know until it's actually run in e2e tests, so not marking that issue to auto-close on merge.  FWIW, it does pass in local tests using hack/local-up-cluster.sh.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:

**Special notes for your reviewer**:

**Release note**:
```release-note
NONE
```
2018-07-02 16:52:09 -07:00
Kubernetes Submit Queue
92b81114f4 Merge pull request #65536 from gnufied/fix-flex-crashing-controller-manager
Automatic merge from submit-queue (batch tested with PRs 65299, 65524, 65154, 65329, 65536). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Make various fixes to flex tests and fix some crashes

* Fixes two controller-manager crashes when a flex plugin gets removed from flex directory.
* Also enables e2e tests to run in local clusters and other environments.
* Removes disruptive from flex e2e tests because flex can be installed in a running cluster and does not require kubelet or controller-manager restart anymore.

/sig storage

cc @verult @jsafrane 

```release-note
Fix controller-manager crashes when flex plugin is removed from flex plugin directory
```
2018-07-02 11:06:24 -07:00
Chris O'Haver
e94304d814 split services between multiple namespaces 2018-07-02 10:31:05 -04:00
Kubernetes Submit Queue
7496c64b46 Merge pull request #65593 from bsalamat/priority_admission
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Limit usage of system critical priority classes to the system namespace

**What this PR does / why we need it**:
Changes Priority admission controller to limit usage of system critical priority classes to the system namespace. This change is needed to mitigate the risk of creating many pods at system critical priority levels that could cause preemption of system critical components.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

ref/ #65557

**Special notes for your reviewer**:

**Release note**:

```release-note
Limit the usage of system-node-critical and system-cluster-critical priority classes to kube-system namespace.
```

/sig scheduling
2018-07-02 01:09:06 -07:00
Jose A. Rivera
db69638911 Add StatefulSet rollback and rolling update test with PVCs
Signed-off-by: Jose A. Rivera <jarrpa@redhat.com>
2018-07-01 21:17:04 -05:00
Hemant Kumar
4e7c2f638d Make various fixes to flex tests and fix some crashes
Remove disruptive from flex
2018-06-29 11:10:26 -04:00
Wojciech Tyczynski
9340bca14e Revert "Make no. of services in load test configurable" 2018-06-29 11:33:14 +02:00
Bobby (Babak) Salamat
0daedee0de Change our tests to ensure that critical system pods are created in the system namespace 2018-06-28 22:25:27 -07:00
Kubernetes Submit Queue
a883243c9c Merge pull request #65462 from liggitt/debug-cli-scale-error
Automatic merge from submit-queue (batch tested with PRs 65600, 65203, 65462). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Add debugging for scale e2e test errors

xref https://github.com/kubernetes/kubernetes/issues/64450#issuecomment-400124285
2018-06-28 22:20:08 -07:00
Kubernetes Submit Queue
0b5d3af049 Merge pull request #65203 from mgdevstack/master-conformance-namespace-pod
Automatic merge from submit-queue (batch tested with PRs 65600, 65203, 65462). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Promote [sig-api-machinery] Namespaces [Serial] e2e test for Conformance

**What this PR does / why we need it**:
This PR promotes two e2e tests cases for Conformance.
1. [sig-api-machinery] Namespaces [Serial] should ensure that all pods are removed when a namespace is deleted.
2. [sig-api-machinery] Namespaces [Serial] should ensure that all services are removed when a namespace is deleted.


**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:
- No flakes found.
- https://github.com/cncf/k8s-conformance/issues/221#issuecomment-397375358

**Release note**:

```release-note
NONE
```
cc @fedebongio, @AishSundar
2018-06-28 22:20:05 -07:00
Masaki Kimura
1b06ba5072 Add e2e tests for volumeMode of persistent volume
This set of e2e tests is to confirm that persistent volume works well for all volumeModes.
Coverage of the tests are shown in the figure of [Test cases], below.

Once implementation policy is confirmed to be good, we can add plugins and test cases to this.

[Test cases]
 #   plugin      volumeMode    Test case                                              Expectation
--- ---------- -------------- ------------------------------------------------------ ------------
 1    iSCSI      Block         (a) Create Pod with PV and confirm Read/Write to PV    Success
 2    iSCSI      FileSystem    (a) Create Pod with PV and confirm Read/Write to PV    Success
 3    RBD        Block         (a) Create Pod with PV and confirm Read/Write to PV    Success
 4    RBD        FileSystem    (a) Create Pod with PV and confirm Read/Write to PV    Success
 5    CephFS     Block         (a) Create Pod with PV and confirm Read/Write to PV    Fail
 6    CephFS     FileSystem    (a) Create Pod with PV and confirm Read/Write to PV    Success
 7    NFS        Block         (a) Create Pod with PV and confirm Read/Write to PV    Fail
 8    NFS        FileSystem    (a) Create Pod with PV and confirm Read/Write to PV    Success

fixes: #56803
2018-06-27 17:25:55 +00:00
Kubernetes Submit Queue
9090832793 Merge pull request #65492 from agau4779/add_neg_annotation
Automatic merge from submit-queue (batch tested with PRs 65492, 65516, 65447). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

[GCE] update NEGAnnotation

**What this PR does / why we need it**:
Updates the NEG annotation in a few more places in the e2e test for Ingress.

```release-note
NONE
```
2018-06-27 02:15:04 -07:00
Kubernetes Submit Queue
05f073dc28 Merge pull request #65468 from mindprince/remove-cos-requirement
Automatic merge from submit-queue (batch tested with PRs 65404, 65323, 65468). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Remove COS requirement while running e2e nvidia gpu tests.

```release-note
NONE
```
2018-06-26 17:33:08 -07:00
Rohit Agarwal
af3bc705b5 Remove COS requirement while running e2e nvidia gpu tests. 2018-06-26 12:12:06 -07:00
Kubernetes Submit Queue
ba7f798a1a Merge pull request #65460 from cofyc/issue64853
Automatic merge from submit-queue (batch tested with PRs 65342, 65460). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Prepare local volumes via hostexec pod instead of SSH

**What this PR does / why we need it**:

Prepare local volumes via hostexec pod. SSH access may be removed in future.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #64853

**Special notes for your reviewer**:

For each test, launch a pod for each node to setup volumes when needed.
It uses `nsenter` to enter into host mount namespace to run commands.

Why using `nsenter` command:
- migrate to use hostexec pod (baseimage: alpine:3.6) busybox `losetup` is hard
- alpine does not contain mkfs.ext4 command
- easier to setup local volumes (no need to mount /tmp, /mnt, /dev/, /sys directories)
- only require hostexec pod contains `nsenter` command

**Release note**:

```release-note
NONE
```
2018-06-26 11:55:08 -07:00
Ashley Gau
72335f6607 update NEGAnnotation 2018-06-26 10:59:48 -07:00
Jordan Liggitt
6b2278fe21 Add debugging for scale e2e test errors 2018-06-26 13:34:48 -04:00
Kubernetes Submit Queue
0d9c432542 Merge pull request #65437 from losipiuk/lo/gpu-tests-from-env
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Read gpu type from TESTED_GPU_TYPE env variable

```release-note
NONE
```
2018-06-26 08:55:44 -07:00
Yecheng Fu
1fbc5babb5 Prepare local volumes via hostexec pod. 2018-06-26 13:18:55 +08:00
Łukasz Osipiuk
63f5f3106b Read gpu type from TESTED_GPU_TYPE env variable 2018-06-25 18:47:49 +02:00
Ashley Gau
7beefd0c9c move NEG out of featuregate 2018-06-25 09:47:39 -07:00
Kubernetes Submit Queue
53cc12b9bd Merge pull request #64535 from agau4779/expose-neg-e2e
Automatic merge from submit-queue (batch tested with PRs 65338, 64535). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

[GCE] e2e test for expose neg on gce ingress

**What this PR does / why we need it**:
- Adds e2e test for the expose NEG annotation (which allows for standalone NEGs)

**Special notes for your reviewer**:
Note, https://github.com/kubernetes/ingress-gce/pull/350 must be merged first before this is merged.

`[Unreleased]` tag is on this PR because it depends on code from https://github.com/kubernetes/ingress-gce/pull/350 and https://github.com/kubernetes/ingress-gce/pull/284 being in an Ingress release. Will update this test and test-infra once this is released in the next Ingress.

**Release note**:
```release-note
NONE
```
2018-06-22 21:28:05 -07:00
Ashley Gau
c981a3349f simplify negs checking 2018-06-22 17:21:28 -07:00
Ashley Gau
90c905b4f1 address comments 2018-06-22 16:38:43 -07:00
Jeff Grafton
23ceebac22 Run hack/update-bazel.sh 2018-06-22 16:22:57 -07:00
Kubernetes Submit Queue
5e9a5659b7 Merge pull request #65376 from mindprince/to-done
Automatic merge from submit-queue (batch tested with PRs 65377, 63837, 65370, 65294, 65376). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Remove unneeded sleep from test.

The race condition that required this sleep was fixed in google/cadvisor#1969.
That was vendored in #65334.

```release-note
NONE
```

/assign @jiayingz @vishh
2018-06-22 16:16:18 -07:00
Ashley Gau
34928d219c add e2e test for standalone (exposed) NEG annotation 2018-06-22 16:15:32 -07:00
Kubernetes Submit Queue
5880db4a65 Merge pull request #65335 from shyamjvs/add-scheduler-profiling-to-testing
Automatic merge from submit-queue (batch tested with PRs 65339, 65343, 65324, 65335, 65367). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Introduce scheduler CPU/Memory profile-gathering in density test

This should help us get more reliable/realistic data for scheduler (from our real-cluster scalability tests).

/cc @wojtek-t 
fyi - @davidopp @bsalamat @misterikkit 

```release-note
NONE
```
2018-06-22 10:31:20 -07:00
Rohit Agarwal
9a9c2aedd3 Remove unneeded sleep from test.
The race condition that required this sleep was fixed in google/cadvisor#1969.
That was vendored in #65334.
2018-06-22 08:53:11 -07:00
Kubernetes Submit Queue
449908488f Merge pull request #65289 from jiayingz/upgrade-test
Automatic merge from submit-queue (batch tested with PRs 65290, 65326, 65289, 65334, 64860). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Add a GPUClusterDowngrade test.

**What this PR does / why we need it**:
We actually need a separate GPUClusterDowngrade test to run gpu downgrade tests defined in e.g.,
https://k8s-testgrid.appspot.com/wg-resource-management#gce-1.11-1.10-gpu-master-downgrade

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note

```
2018-06-22 04:43:09 -07:00
Shyam Jeedigunta
0c787703f5 Introduce scheduler CPU/Memory profile-gathering in density test 2018-06-22 12:12:05 +02:00
Shyam Jeedigunta
457548ef7d Refactor profile-gatherer to work across all master components 2018-06-22 12:11:56 +02:00
Kubernetes Submit Queue
6c847f3e7a Merge pull request #65307 from shyamjvs/fix-scheduler-reset-metrics-bug
Automatic merge from submit-queue (batch tested with PRs 65301, 65291, 65307, 63845, 65313). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Fix scheduler reset metrics bug in testinfra

/cc @krzysied 

```release-note
NONE
```
2018-06-22 03:08:13 -07:00
Kubernetes Submit Queue
cbe4f48866 Merge pull request #65064 from davidz627/fix/CSIe2eAttach
Automatic merge from submit-queue (batch tested with PRs 65064, 65218, 65260, 65241, 64372). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Added attach/mount/check steps to CSI Driver E2E tests

This PR makes the CSI Volume E2E tests actually go through the entire dynamic provisioning pipeline and test attach/mount/check file etc.

Fixes #64927

```release-note
None
```
2018-06-21 21:12:09 -07:00
Kubernetes Submit Queue
18b16be622 Merge pull request #65223 from jsafrane/aws-inaccessible-key
Automatic merge from submit-queue (batch tested with PRs 65187, 65206, 65223, 64752, 65238). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Fixed detection of inaccessible AWS encryption key.

AWS provisioner now checks if created encrypted volume gets "Available" or it gets silently deleted by AWS because StorageClass referenced invalid (e.g. non-existing) KMS key for encryption.

This seems to be the only way how to detect such invalid key, because Kubernetes may not have enough permission to check if the key exists.

**Which issue(s) this PR fixes**
Fixes #62171

**Special notes for your reviewer**:

**Release note**:

```release-note
AWS now checks for validity of ecryption key when creating encrypted volumes. Dynamic provisioning of encrypted volume may get slower due to these checks.
```

/sig aws
/sig storage
@kubernetes/sig-aws-misc
2018-06-21 19:48:10 -07:00
Kubernetes Submit Queue
80da69b07f Merge pull request #65179 from shyamjvs/reduce-service-endpoints-in-load-test
Automatic merge from submit-queue (batch tested with PRs 65152, 65199, 65179, 64598, 65216). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Make no. of services in load test configurable

Experimenting with https://github.com/kubernetes/kubernetes/issues/48107#issuecomment-398018717

/cc @wojtek-t 

```release-note
NONE
```

/kind bug
/sig scalability
/priority important-soon
2018-06-21 18:20:12 -07:00