This way we can be sure that the kubelet can't communicate with the
master, even if falls-back to the internal/external IP (which seems to
be the case with DNS)
Issue #56787
Not all users of the E2E framework want to run cloud-provider specific
tests. By splitting out the code it becomes possible to decide in
a E2E test suite which providers are supported.
This is achieved in two ways:
- the framework calls certain functions through a provider
interface instead of calling specific cloud provider functions
directly
- tests that are cloud-provider specific directly import the
new provider packages
The ingress test utilities are only needed by a few tests. Splitting
them out into a separate package makes the framework simpler for test
suites not using those tests.
Fixes: #66649
Automatic merge from submit-queue (batch tested with PRs 67950, 68195). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Remove e2e-image-puller
**What this PR does / why we need it**:
A long time ago, We added the image prepulling as a workaround due to
the overwhelming amount of flake caused by pulling during the tests.
This functionality has been broken for a while now when we switched to a
COS image where mounting `docker` binary into `busybox` stopped working.
So we just have dead code we should clean up.
Change-Id: I538171a5c1d9361eee7f9e0a99655b88b1721e3e
**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#63355
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
A long time ago, We added the image prepulling as a workaround due to
the overwhelming amount of flake caused by pulling during the tests.
This functionality has been broken for a while now when we switched to a
COS image where mounting `docker` binary into `busybox` stopped working.
So we just have dead code we should clean up.
Change-Id: I538171a5c1d9361eee7f9e0a99655b88b1721e3e
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>.
remove rescheduler since scheduling DS pods by default scheduler is moving to beta
**What this PR does / why we need it**:
remove rescheduler since scheduling DS pods by default scheduler is moving to beta
**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#64725
**Special notes for your reviewer**:
**Release note**:
```release-note
Remove rescheduler since scheduling DS pods by default scheduler is moving to beta.
```
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>.
Modify e2e tests to use priorityClass beta client version & switch priorityClass to beta
**What this PR does / why we need it**:
/cc @bsalamat @aveshagarwal @liggitt
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Part of #57471
**Special notes for your reviewer**:
Once #57963 merges, this could go in.
**Release note**:
```release-note
Modify e2e tests to use priorityClass beta version & switch priorityClass feature to beta
```
Automatic merge from submit-queue (batch tested with PRs 63859, 63979). 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>.
Drop reapers
/assign @deads2k @juanvallejo
**Release note**:
```release-note
kubectl delete does not use reapers for removing objects anymore, but relies on server-side GC entirely
```
Automatic merge from submit-queue (batch tested with PRs 62208, 62114, 62144, 60460, 62214). 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>.
removes job scaler, continued
Builds on https://github.com/kubernetes/kubernetes/pull/61912 (original commit is there for credit/blame)
This keeps all the updates to the scaler building and all the test and reaper cleanup. It just keeps a fake job scaler around for a different command path and the reaper.
/assign @p0lyn0mial
/assign @soltysh
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 61498, 62030). 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>.
Delete in-tree support for NVIDIA GPUs.
This removes the alpha Accelerators feature gate which was deprecated in 1.10 (#57384).
The alternative feature DevicePlugins went beta in 1.10 (#60170).
Fixes#54012
```release-note
Support for "alpha.kubernetes.io/nvidia-gpu" resource which was deprecated in 1.10 is removed. Please use the resource exposed by DevicePlugins instead ("nvidia.com/gpu").
```
Automatic merge from submit-queue (batch tested with PRs 60519, 61099, 61218, 61166, 61714). 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>.
Automatically add system critical priority classes at cluster boostrapping
**What this PR does / why we need it**:
We had two PriorityClasses that were hardcoded and special cased in our code base. These two priority classes never existed in API server. Priority admission controller had code to resolve these two names. This PR removes the hardcoded PriorityClasses and adds code to create these PriorityClasses automatically when API server starts.
**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#60178
ref/ #57471
**Special notes for your reviewer**:
**Release note**:
```release-note
Automatically add system critical priority classes at cluster boostrapping.
```
/sig scheduling
Automatic merge from submit-queue (batch tested with PRs 61546, 61038, 61575, 60779, 61496). 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>.
Use random port to avoid conflict with other important pods that might be listening on 80.
**What this PR does / why we need it**:
Fix https://github.com/kubernetes/kubernetes/issues/61018
**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 # https://github.com/kubernetes/kubernetes/issues/61018
**Special notes for your reviewer**:
**Release note**:
```release-note
None.
```
@smarterclayton
The LocalStorageCapacityIsolation feature added a new resource type
ResourceEphemeralStorage "ephemeral-storage" so that this resource can
be allocated, limited, and consumed as the same way as CPU/memory. All
the features related to resource management (resource request/limit, quota, limitrange) are avaiable for local ephemeral storage.
This local ephemeral storage represents the storage for root file system, which will be consumed by containers' writtable layer and logs. Some volumes such as emptyDir might also consume this storage.
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>.
e2e tests for multizone PDs
**What this PR does / why we need it**: e2e tests for multizone PDs.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
partially fixing #59988
/release-note-none
/assign @msau42 @saad-ali
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>.
Critical pod priorityClass addition
**What this PR does / why we need it**:
@bsalamat - Apologies for the delay. This PR is to ensure that all pods with priorityClassName `system-node-critical` and `system-cluster-critical` will be critical pods while preserving backwards compatibility.
**Special notes for your reviewer**:
- Moved some constants and other data structures to scheduler/api/types.go where other constants are present.
- An automatic assignment of critical priorities to pods based on critical pod annotation for backwards compatibility including some unit tests.
xref: https://github.com/kubernetes/kubernetes/issues/57471
**Release note**:
```release-note
Critical pods to use priorityClasses.
```
Automatic merge from submit-queue (batch tested with PRs 60158, 60156, 58111, 57583, 60055). 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>.
Bugfix/logf newline
**What this PR does / why we need it**:
Removes all redundant new lines being passed into the `Logf()` function. This involved going through code in both `test/e2e` and `test/e2e_node`, finding the newline redundancies in calls to `Logf()` and removing them.
**Which issue(s) this PR fixes**:
Fixes [#57102](https://github.com/kubernetes/kubernetes/issues/57102)
**Release note**:
```release-note
NONE
```
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>.
Invoke preStart RPC call before container start, if desired by plugin
**What this PR does / why we need it**:
1. Adds a new RPC `preStart` to device plugin API
2. Update `Register` RPC handling to receive a flag from the Device plugins as an indicator if kubelet should invoke `preStart` RPC before starting container.
3. Changes in device manager to invoke `preStart` before container start
4. Test case updates
**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#56943#56307
**Special notes for your reviewer**:
**Release note**:
```release-note
None
```
/sig node
/area hw-accelerators
/cc @jiayingz @RenaudWasTaken @vishh @ScorpioCPH @sjenning @derekwaynecarr @jeremyeder @lichuqiang @tengqm
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>.
Support for resource quota on extended resources
**Which issue(s) this PR fixes** :
Fixes#46639#57300 for resource quota support
**Special notes for your reviewer**:
One thing to be determined is if it necessary to Explicitly prohibit defining limits for extended resources in quota, like we did for [hugepages](https://github.com/kubernetes/kubernetes/pull/54292#pullrequestreview-74982771), as the resource is not allowed to overcommit.
**Release note**:
```release-note
Support for resource quota on extended resources
```
/cc @jiayingz @vishh @derekwaynecarr
Automatic merge from submit-queue (batch tested with PRs 58302, 58782, 58555, 58741). 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 it possible to override the driver installer daemonset url from test-infra.
This will enable things like kubernetes/test-infra#6430
/kind enhancement
/sig testing
/sig scheduling
**Release note**:
```release-note
NONE
```
/assign @jiayingz @vishh
note that we don't change the behaviour of kubectl.
For example it won't scale new resources. That's the end goal.
The first step is to retrofit existing code to use the generic scaler.
This moves plugin/pkg/scheduler to pkg/scheduler and
plugin/cmd/kube-scheduler to cmd/kube-scheduler.
Bulk of the work was done with gomvpkg, except for kube-scheduler main
package.
Automatic merge from submit-queue (batch tested with PRs 55900, 55995, 55913, 55467, 55376). 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>.
Use extensions client with explicit version
**What this PR does / why we need it**:
Extensions client without explicit version has been deprecated, change them to the one with explicit version.
**Which issue(s) this PR fixes**:
Fixes partially #55993
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 52767, 55065, 55148, 56228, 56221). 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>.
LimitRange e2e test improved.
**What this PR does / why we need it**: Improves the e2e test for LimitRange API by testing Update, Delete and Watch features.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 55103, 56036, 56186). 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>.
Removed opaque integer resources (deprecated in v1.8)
**What this PR does / why we need it**:
* Remove opaque integer resources (OIR) support from the code base. This feature was deprecated in v1.8 and replaced by Extended Resources (ER).
**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#55102
**Release note**:
```release-note
Remove opaque integer resources (OIR) support (deprecated in v1.8.)
```
- Runs as system critical pod
- Makes resource limits to match its resource requets
- Modifies test/e2e/scheduling/nvidia-gpus.go to cope with the recent
change of running the device plugin as a system addon.
- The resource settings of the addon is based on the test results
from 8 nvidia-tesla-k80 gpus.
Automatic merge from submit-queue (batch tested with PRs 53780, 55663, 55321, 52421, 55659). 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 hostip and protocol to the hostport predicates
**What this PR does / why we need it**:
This PR adds "hostIP and protocol" to scheduler hostport predicate procedure
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fix#51950
**Special notes for your reviewer**:
- [x] basic implementation, need review
- [x] e2e test
- [x] update doc (will be done in seperate PR)
**Release note**:
```release-note
add hostIP and protocol to the original hostport predicates procedure in scheduler.
```
Device plugin is now an addon and its manifest is now in
kubernetes/kubernetes. The manifest on
GoogleCloudPlatform/container-engine-accelerators no longer contains
device plugin.
installer and device plugin containers.
To support this, exports certain functions and fields in
framework/resource_usage_gatherer.go so that it can be used in any
e2e test to track any specified pod resource usage with the specified
probe interval and duration.
Automatic merge from submit-queue (batch tested with PRs 54773, 52523, 47497, 55356, 49429). 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 ephemeral storage e2e tests
Add e2e tests of limitrange/quota/downward_api for local ephemeral storage
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: part of #52463
**Special notes for your reviewer**:
Add e2e tests of limitrange/quota/downwardapi for local ephemeral storage
**Release note**:
```release-note
Add limitrange/resourcequota/downward_api e2e tests for local ephemeral storage
```
/assign @jingxu97
This commit fixes an issue where in clusters which have FQDN as the node names,
one of the scheduling predicates tests will fail because it will try and run a
pod with a name that violates DNS-1123 rules. As an example, one such pod name
could look like "filler-pod-kube-node-0.kubelet.mesos".
Signed-off-by: Paulo Pires <pjpires@gmail.com>
Automatic merge from submit-queue (batch tested with PRs 54165, 53909). 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 conformance test test.
Add new `test/conformance` subdir, add code to generate a list of conformance tests, and add a test that verifies the list of tests.
The intent is to move management of the definition of conformance to sig-architecture.
```release-note
NONE
```
ref. #54726
Automatic merge from submit-queue (batch tested with PRs 54455, 54431). 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 conformance annotations for proxy and scheduler predicate tests
Signed-off-by: Brad Topol <btopol@us.ibm.com>
/sig testing
/area conformance
@sig-testing-pr-reviews
This PR adds proxy and scheduler predicate related conformance annotations to the e2e test suite.
The PR fixes a portion of #53822. It focuses on adding conformance annotations as defined by the Kubernetes Conformance Workgroup for a subset of the pod based e2e conformance tests.
Special notes for your reviewer:
Please see https://docs.google.com/spreadsheets/d/1WWSOqFaG35VmmPOYbwetapj1VPOVMqjZfR9ih5To5gk/edit#gid=62929400
for the list of SIG Arch approved test names and descriptions that I am using.
**Release note**:
```release-note NONE
```
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>.
Fixes a flakiness in GPUDevicePlugin e2e test.
Waits till nvidia gpu disappears from all nodes after deleting the
device plug DaemonSet to make sure its pods are deleted from all nodes.
**What this PR does / why we need it**:
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
https://github.com/kubernetes/kubernetes/issues/53281
**Special notes for your reviewer**:
**Release note**:
```release-note
```
Automatic merge from submit-queue (batch tested with PRs 50988, 50509, 52660, 52663, 52250). 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 device plugin e2e kubelet failure test
Signed-off-by: Renaud Gaubert <renaud.gaubert@gmail.com>
**What this PR does / why we need it**:
This is part of issue #52859 (fixes#52859)
This PR adds a e2e_node test for the device plugin.
Specifically it implements testing of failure handling by the device plugin components in case Kubelet restart / crashes.
I might try to refactor the GPU tests in a later PR.
**Special notes for your reviewer**:
@jiayingz @vishh
**Release note**:
```release-note
NONE
```
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>..
bazel: build/test almost everything
**What this PR does / why we need it**: Miscellaneous cleanups and bug fixes. The main motivating idea here was to make `bazel build //...` and `bazel test //...` mostly work. (There's a few reasons these still don't work, but we're a lot closer.)
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/assign @BenTheElder @mikedanese @spxtr
Automatic merge from submit-queue (batch tested with PRs 52442, 52247, 46542, 52363, 51781)
Add more tests for pod preemption
**What this PR does / why we need it**:
Adds more e2e and integration tests for pod preemption.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
This PR is based on #50949. Only the last commit is new.
**Release note**:
```release-note
NONE
```
ref/ #47604
@kubernetes/sig-scheduling-pr-reviews @davidopp
Automatic merge from submit-queue (batch tested with PRs 52316, 52289, 52375)
Extends GPUDevicePlugin e2e test to exercise device plugin restarts.
**What this PR does / why we need it**:
This is part of issue #52189 but does not fix it.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
```
Automatic merge from submit-queue
Version gates the ephemeral storage e2e test
Version gates the ephemeral storage e2e test.
**Release note**:
```
NONE
```
@kubernetes/sig-testing-pr-reviews
Automatic merge from submit-queue
Extend nvidia-gpus e2e test to include a device plugin based test
**What this PR does / why we need it**:
This is needed to verify device plugin feature.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes https://github.com/kubernetes/features/issues/368
**Special notes for your reviewer**:
Related test_infra PR: https://github.com/kubernetes/test-infra/pull/4265
**Release note**:
Add an e2e test for nvidia gpu device plugin
Automatic merge from submit-queue
Add pod preemption to the scheduler
**What this PR does / why we need it**:
This is the last of a series of PRs to add priority-based preemption to the scheduler. This PR connects the preemption logic to the scheduler workflow.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#48646
**Special notes for your reviewer**:
This PR includes other PRs which are under review (#50805, #50405, #50190). All the new code is located in 43627afdf9.
**Release note**:
```release-note
Add priority-based preemption to the scheduler.
```
ref/ #47604
/assign @davidopp
@kubernetes/sig-scheduling-pr-reviews
Automatic merge from submit-queue
Use the right image for the right platform in the e2e tests
**What this PR does / why we need it**:
This PR is for enabling kubernetes tests for multi architecture platform
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#38067
**Special notes for your reviewer**:
This will enable conformance tests for all the supported architectures.
**Release note**:
```release-note
Make all e2e tests lookup image to use from a centralized place. In that centralized place, add support for multiple platforms.
```
x-ref #38067
Automatic merge from submit-queue (batch tested with PRs 49961, 50005, 50738, 51045, 49927)
Add cluster e2es to verify scheduler local storage support
Add cluster e2es to verify scheduler local storage support and remove some unused private functions
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*:
part of #50818
**Release note**:
```release-note
Add cluster e2es to verify scheduler local ephemeral storage support
```
/assign @jingxu97
/cc @ddysher
Automatic merge from submit-queue (batch tested with PRs 51193, 51154, 42689, 51189, 51200)
Re-enable OIR e2e tests.
Re-enabling test skeleton for opaque integer resources originally submitted as part of #41870. The e2e was disabled since it was flaky. This is the first step toward re-enabling them. Currently all cases are skipped, so this exercises only the BeforeEach behavior and the deferred removal of OIRs from a node.
cc @timothysc
Automatic merge from submit-queue (batch tested with PRs 50257, 50247, 50665, 50554, 51077)
Replace hard-code "cpu" and "memory" to consts
**What this PR does / why we need it**:
There are many places using hard coded "cpu" and "memory" as resource name. This PR replace them to consts.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
/kind cleanup
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 50277, 50823, 50376, 50867)
Move e2e taints test file to sig-scheduling
**What this PR does / why we need it**:
Move taint test file to e2e scheduling and add sig-scheduling prefix.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
Ref Umbrella issue #49161
**Special notes for your reviewer**:
**Release note**:
none
Automatic merge from submit-queue (batch tested with PRs 49358, 49253)
Remove hostname label condition in SchedulerPredicates
**What this PR does / why we need it**:
```
validates that NodeSelector is respected if matching [Conformance]
validates that required NodeAffinity setting is respected if matching
```
The two tests above make the assumption that the node names are equal to the `kubernetes.io/hostname` labels. Unfortunately, this is not necessarily true all the time. For instance, when using the AWS Cloud Provider + Container Linux:
- The node name is set using the AWS SDK's `ec2.Instance.PrivateDnsName` and has the form `ip-10-0-35-57.ca-central-1.compute.internal` [[1](https://github.com/kubernetes/kubernetes/blob/v1.7.1/pkg/cloudprovider/providers/aws/aws.go#L3343-L3346)] [[2](https://raw.githubusercontent.com/aws/aws-sdk-go/master/service/ec2/api.go)]
- The node's hostname, however, is a simple call to `os.Hostname()`, itself reading `/proc/sys/kernel/hostname`, which contains what the AWS DHCP assigned to the instance, typically the hostname short-form: `ip-10-0-16-137`. [[1](https://github.com/kubernetes/kubernetes/blob/v1.7.1/pkg/util/node/node.go#L43-L54)]
Consequently, we are trying to assign a pod to a node having the following label: `kubernetes.io/hostname=ip-10-0-35-57.ca-central-1.compute.internal` (in addition to the randomly generated label), whereas the actual label on the node is `kubernetes.io/hostname=ip-10-0-35-57`.
Furthermore, this inaccurate `kubernetes.io/hostname=<nodename>` condition is actually useless given we already match over a random label, that was assigned to that node. Later, the test ensures that the scheduled pod was scheduled to the right node by comparing the pod's node name and the node name we expected the pod to be on:
```
framework.ExpectNoError(framework.WaitForPodNotPending(cs, ns, labelPodName))
labelPod, err := cs.Core().Pods(ns).Get(labelPodName, metav1.GetOptions{})
framework.ExpectNoError(err)
Expect(labelPod.Spec.NodeName).To(Equal(nodeName))
```
The `k8s.io/apimachinery/pkg/types/nodename` data structure actually [warns](55bee3ad21/staging/src/k8s.io/apimachinery/pkg/types/nodename.go (L40-L43)) about the fact that the node name might be different than the hostname on AWS.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue
Add an integration test library and some integration tests for scheduler
**What this PR does / why we need it**:
1. Add an integration test library (utils.go) for scheduler testing.
2. Cleaned up some of the tests in scheduler_test.go with the new integration test library.
3. Add priority_test.go with a couple of examples on how to test scheduler priority function in integration tests.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
ref/ #48176
@kubernetes/sig-scheduling-pr-reviews
@davidopp @k82cn @vikaschoudhary16
Automatic merge from submit-queue (batch tested with PRs 48043, 48200, 49139, 36238, 49130)
Implement equivalence cache by caching and re-using predicate result
The last part of #30844, I opened a new PR instead of overwrite the old one because we changed some basic assumption by allowing invalidating equivalence cache item by individual predicate.
The idea of this PR is based on discussion in https://github.com/kubernetes/kubernetes/issues/32024
- [x] Pods belong to same controllerRef considered to be equivalent
- [x] ` podFitsOnNode` will use cached predicate result if it's available
- [x] Equivalence cache will be updated when if a fresh new predicate is done
- [x] `factory.go` will invalid specific predicate cache(s) based on the object change
- [x] Since `schedule` and `bind` are async, we need to optimistically invalid affected cache(s) before `bind`
- [x] Fully unit test of affected files
- [x] e2e test to verify cache update/invalid workflow
- [x] performance test results
- [x] Some nits fixes related but expected to result in `needs-rebase` so they are split to: #36060#35968#37512
cc @wojtek-t @davidopp
Automatic merge from submit-queue (batch tested with PRs 49055, 49128, 49132, 49134, 49110)
Remove affinity annotations leftover
**What this PR does / why we need it**:
This is a further cleanup for affinity annotations, following #47869.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
ref: #47869
**Special notes for your reviewer**:
- I remove the commented test cases and just leave TODOs instead. I think converting these untestable test cases for now is not necessary. We can add new test cases in future.
- I remove the e2e test case `validates that embedding the JSON PodAffinity and PodAntiAffinity setting as a string in the annotation value work` because we have a test case `validates that InterPod Affinity and AntiAffinity is respected if matching` to test the same thing.
/cc @aveshagarwal @bsalamat @gyliu513 @k82cn @timothysc
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 47417, 47638, 46930)
Added scheduler integration test owners.
**What this PR does / why we need it**:
Add OWNER file into scheduler integration test.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes # N/A
**Release note**:
```release-note-none
```
Automatic merge from submit-queue
Delete unused return
**What this PR does / why we need it**:
We do not use the function return, it's better not to write the return.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 45610, 47628)
Replace capacity with allocatable to calculate pod resource
It is not accurate to use capacity to do the calculation.
**What this PR does / why we need it**:
The currently cpu resource calculation for a pod in end2end test is incorrect.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fixes#47627
**Special notes for your reviewer**:
More details about capacity and allocatable:
https://github.com/kubernetes/community/blob/master/contributors/design-proposals/node-allocatable.md
**Release note**:
NONE
Automatic merge from submit-queue (batch tested with PRs 47883, 47179, 46966, 47982, 47945)
Remove e2e test for least requested prioirty function
**What this PR does / why we need it**:
Deletes a flaky e2e test for "least requested" priority function of the scheduler. This priority function is tested more extensively in our unit tests.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#47769
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
