Automatic merge from submit-queue (batch tested with PRs 51186, 50350, 51751, 51645, 51837)
Set up DNS server in containerized mounter path
During NFS/GlusterFS mount, it requires to have DNS server to be able to
resolve service name. This PR gets the DNS server ip from kubelet and
add it to the containerized mounter path. So if containerized mounter is
used, service name could be resolved during mount
**Release note**:
```release-note
Allow DNS resolution of service name for COS using containerized mounter. It fixed the issue with DNS resolution of NFS and Gluster services.
```
Automatic merge from submit-queue (batch tested with PRs 51186, 50350, 51751, 51645, 51837)
Update Cadvisor Dependency
Fixes: https://github.com/kubernetes/kubernetes/issues/51832
This is the worst dependency update ever...
The root of the problem is the [name change of Sirupsen -> sirupsen](https://github.com/sirupsen/logrus/issues/570#issuecomment-313933276). This means that in order to update cadvisor, which venders the lowercase, we need to update all dependencies to use the lower-cased version. With that being said, this PR updates the following packages:
`github.com/docker/docker`
- `github.com/docker/distribution`
- `github.com/opencontainers/go-digest`
- `github.com/opencontainers/image-spec`
- `github.com/opencontainers/runtime-spec`
- `github.com/opencontainers/selinux`
- `github.com/opencontainers/runc`
- `github.com/mrunalp/fileutils`
- `golang.org/x/crypto`
- `golang.org/x/sys`
- `github.com/docker/go-connections`
- `github.com/docker/go-units`
- `github.com/docker/libnetwork`
- `github.com/docker/libtrust`
- `github.com/sirupsen/logrus`
- `github.com/vishvananda/netlink`
`github.com/google/cadvisor`
- `github.com/euank/go-kmsg-parser`
`github.com/json-iterator/go`
Fixed https://github.com/kubernetes/kubernetes/issues/51832
```release-note
Fix journalctl leak on kubelet restart
Fix container memory rss
Add hugepages monitoring support
Fix incorrect CPU usage metrics with 4.7 kernel
Add tmpfs monitoring support
```
Automatic merge from submit-queue (batch tested with PRs 51186, 50350, 51751, 51645, 51837)
Wait for container cleanup before deletion
We should wait to delete pod API objects until the pod's containers have been cleaned up. See issue: #50268 for background.
This changes the kubelet container gc, which deletes containers belonging to pods considered "deleted".
It adds two conditions under which a pod is considered "deleted", allowing containers to be deleted:
Pods where deletionTimestamp is set, and containers are not running
Pods that are evicted
This PR also changes the function PodResourcesAreReclaimed by making it return false if containers still exist.
The eviction manager will wait for containers of previous evicted pod to be deleted before evicting another pod.
The status manager will wait for containers to be deleted before removing the pod API object.
/assign @vishh
Automatic merge from submit-queue (batch tested with PRs 51186, 50350, 51751, 51645, 51837)
fix bug on kubectl deleting uninitialized resources
**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#51185
**Special notes for your reviewer**:
/assign @caesarxuchao @ahmetb
**Release note**:
```release-note
fix bug on kubectl deleting uninitialized resources
```
Automatic merge from submit-queue
Update the label manifest with new milestone labels
**What this PR does / why we need it**:
Make the milestone labels more noticeable.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
ref: #51663
**Special notes for your reviewer**:
/cc @bgrant0607 @fejta
/assign @grodrigues3 @spxtr
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 50072, 51744)
Deviceplugin checkpoint
**What this PR does / why we need it**:
Extends on top of PR 51209 to checkpoint device to pod allocation information on Kubelet to recover from Kubelet restarts.
**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
Hugetlbfs support based on empty dir volume plugin
**What this PR does / why we need it**: Support for huge pages in empty dir volume plugin. More information about hugepages can be found [here](https://www.kernel.org/doc/Documentation/vm/hugetlbpage.txt)
Feature track issue: kubernetes/features#275
**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
Support for Huge pages in empty_dir volume plugin
[Huge pages](https://www.kernel.org/doc/Documentation/vm/hugetlbpage.txt) can now be used with empty dir volume plugin.
```
During NFS/GlusterFS mount, it requires to have DNS server to be able to
resolve service name. This PR gets the DNS server ip from kubelet and
add it to the containerized mounter path. So if containerized mounter is
used, service name could be resolved during mount
Automatic merge from submit-queue
HugePages feature
**What this PR does / why we need it**:
Implements HugePages support per https://github.com/kubernetes/community/pull/837
Feature track issue: https://github.com/kubernetes/features/issues/275
**Special notes for your reviewer**:
A follow-on PR is opened to add the EmptyDir support.
**Release note**:
```release-note
Alpha support for pre-allocated hugepages
```
Automatic merge from submit-queue (batch tested with PRs 51915, 51294, 51562, 51911)
make clean will remove all gitignored files
**What this PR does / why we need it**:
During review of #51766, it was noticed that we don't fully clean all gitignored files when we run "make clean":
https://github.com/kubernetes/kubernetes/pull/51766#discussion_r136688728
This change will change `make clean` to use `git clean` to remove all files in the gitignore.
**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
```
Automatic merge from submit-queue (batch tested with PRs 51915, 51294, 51562, 51911)
Remove OutOfDisk from controllers
This is one of the working items for #48843 for 1.8.
This changes the scheduler and daemonset controllers to no longer respect the OutOfDisk condition. The kubelet has not published OutOfDisk=True since 1.5.
This still preserves the Toleration for the OutOfDisk condition, as (I think?) this is required for backwards compatibility. I added TODOs to remove this in 1.10.
Automatic merge from submit-queue (batch tested with PRs 51739, 51762)
Update vendor kube-openapi
Update vendor to pick up some change in kube-openapi. The goal is to move some generic openapi parsing and indexing code to kube-openapi repo.
Update the places that using it.
https://github.com/kubernetes/kubernetes/pull/51321 will depend on this.
fixes: #51822https://github.com/kubernetes/kube-openapi/pull/10 is the PR to move stuff to kube-openapi repo.
```release-note
NONE
```
/assign @apelisse
Automatic merge from submit-queue (batch tested with PRs 51739, 51762)
GCE: Separate the network's project from the rest of the project
**What this PR does / why we need it**:
PR allows the user to specify a different project for network resources during cluster turn-up.
Depends on #51725Fixes#51846
/assign @bowei
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 51833, 51936)
fix docstring of advanced audit policy
I found this when I write doc for advanced audit beta version.
**Release note**:
```
NONE
```
Automatic merge from submit-queue (batch tested with PRs 51833, 51936)
Changed volume IO e2e test to verify file hash instead of content.
**What this PR does / why we need it**: The existing way of verifying file content takes too much memory, causing processes to be OOM killed.
**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/51717
**Release note**:
```release-note
NONE
```
/sig storage
/release-note-none
/assign @jeffvance @rootfs
/cc @msau42
Automatic merge from submit-queue
Add support for multi-zone GCE PDs
**What this PR does / why we need it**:
Adds alpha support in k8s for multi-zone (aka Regional) GCE PDs.
**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/51232
**Special notes for your reviewer**:
**Release note**:
Modifies the VolumeZonePredicate to handle a PV that belongs to more
then one zone or region. This is indicated by the zone or region label
value containing a comma separated list.
Automatic merge from submit-queue (batch tested with PRs 51180, 51893)
Clear alpha MountPropagation fields.
This is leftover from #50924, mount propagation introduced a new field that needs to be cleared.
**Which issue this PR fixes**
fixes#51738
**Release note**:
```release-note
NONE
```
@k8s-mirror-api-machinery-pr-reviews
/assign @liggitt
Automatic merge from submit-queue (batch tested with PRs 51180, 51893)
CPU manager static policy
Blocker for CPU manager #49186 (5 of 6)
* Previous PR in this series: #51357
* Next PR in this series: #51041
cc @derekwaynecarr @sjenning @flyingcougar @balajismaniam
Attempting to be fairly accurate with main authorship at least at a file level -- please let me know if anyone has a better idea on how to improve this.
For posterity, here are the Kubelet flags to run the static policy (assuming `/kube-reserved` is a cgroup that exists for all required controllers)
`--feature-gates=CPUManager=true --cpu-manager-policy=static --cpu-manager-reconcile-period=5s --enforce-node-allocatable=pods,kube-reserved --kube-reserved-cgroup=/kube-reserved --kube-reserved=cpu=500m`
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue
Add client side event spam filtering
**What this PR does / why we need it**:
Add client side event spam filtering to stop excessive traffic to api-server from internal cluster components.
this pr defines a per source+object event budget of 25 burst with refill of 1 every 5 minutes.
i tested this pr on the following scenarios:
**Scenario 1: Node with 50 crash-looping pods**
```
$ create 50 crash-looping pods on a single node
$ kubectl run bad --image=busybox --replicas=50 --command -- derekisbad
```
Before:
* POST events with peak of 1.7 per second, long-tail: 0.2 per second
* PATCH events with peak of 5 per second, long-tail: 5 per second
After:
* POST events with peak of 1.7 per second, long-tail: 0.2 per second
* PATCH events with peak of 3.6 per second, long-tail: 0.2 per second
Observation:
* https://github.com/kubernetes/kubernetes/pull/47462 capped the number of total events in the long-tail as expected, but did nothing to improve total spam of master.
**Scenario 2: replication controller limited by quota**
```
$ kubectl create quota my-quota --hard=pods=1
$ kubectl run nginx --image=nginx --replicas=50
```
Before:
* POST events not relevant as aggregation worked well here.
* PATCH events with peak and long-tail of 13.6 per second
After:
* POST events not relevant as aggregation worked well here.
* PATCH events with peak: .35 per second, and long-tail of 0
**Which issue this PR fixes**
fixes https://github.com/kubernetes/kubernetes/issues/47366
**Special notes for your reviewer**:
this was a significant problem in a kube 1.5 cluster we are running where events were co-located in a single etcd. this cluster was normal to have larger numbers of unhealty pods as well as denial by quota.
**Release note**:
```release-note
add support for client-side spam filtering of events
```
Automatic merge from submit-queue
Add liggitt to registry approvers
~50 commits to this subtree, and changes to pkg/api, apimachinery, and apiserver (already in approvers list) usually involve corresponding changes here
/assign @smarterclayton
/assign @lavalamp
/assign @wojtek-t
Automatic merge from submit-queue
Fix Stackdriver Logging tests for large clusters
Fixes https://github.com/kubernetes/kubernetes/issues/51700
Due to the limit on the length of the filter, filtering out all nodes in the cluster is not possible. Removing the filter shouldn't affect the tests, since the checks are made based on the nodeIds in the cluster that are unique anyway
Automatic merge from submit-queue
Bump gce metadata-proxy from 0.1.2 to 0.1.3
**What this PR does / why we need it**: Bump metadata-proxy from 0.1.2 to 0.1.3 to incorporate fix for CVE 2016-9063, xref https://github.com/kubernetes/contrib/pull/2720
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
