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update cluster printer to enable --show-labels
**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#53729
**Special notes for your reviewer**:
**Release note**:
```release-note
update cluster printer to enable --show-labels
```
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Ensure base image includes the modprobe binary
**What this PR does / why we need it**:
Includes the kmod package so that "modprobe" is available for kubelet and kube-proxy.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#53396
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Parse cluster-cidr only if it is specified
xref https://github.com/kubernetes/kubernetes/issues/53570#issuecomment-335943956
**What this PR does / why we need it**:
In iptables/proxier.go, there is code to check the length of the
CIDR and setup nat/iptables only if the length of the string is
greater than zero. However in PR #49087, strong validation was
added so kube proxy currently bails out and basically mandates
a valid cidr has to be specified. Let us go back to the earlier
behavior.
**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
```
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Get rid of pkg/api/util
Old helpers we can replace with apimachinery tools.
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kubeadm: prepare for v1.9 cycle
**What this PR does / why we need it**:
Prepares kubeadm for v1.9 cycle which only supports v1.8 and v1.9 (when released). Deletes all v1.7.x support and sets minimum Kubernetes version to v1.8.
**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/kubeadm/issues/447https://github.com/kubernetes/kubeadm/issues/448https://github.com/kubernetes/kubeadm/issues/445
**Special notes for your reviewer**:
@luxas these changes seem a bit aggressive but seems reasonable given the compatibility expectations for kubeadm.
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Avoid fetching entire discovery tree when possible
For specific commands, we use discovery to determine whether a particular resource is available.
We should avoid fetching the entire discovery tree to check a single resource group version. As the number of groups grows, the performance hit and potential to encounter an error also grows.
```release-note
NONE
```
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Use bazel to build/push kubemark image
try to get some proof of concept, kubemark image is probably simple enough to get converted to bazel. (me bazel noob still trying it out locally)
cc @BenTheElder @ixdy @shyamjvs
/release-note-none
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RBAC: Add test for create clusterrolebindding
**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 #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Mark etcd-quorum-read as deprecated.
**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 #
ref: #53662 ##53717
**Special notes for your reviewer**:
/cc @liggitt @dims @anguslees
**Release note**:
```release-note
Deprecation: The flag `etcd-quorum-read ` of kube-apiserver is deprecated and the ability to switch off quorum read will be removed in a future release.
```
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Reduce log spam in qos container manager
**What this PR does / why we need it**:
excessive log stmts make it hard to debug actual problems.
**Release note**:
```release-note
NONE
```
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Improve e2e tests of audit logging.
Now test includes:
* Verbs: create, list, watch, delete, get, update, patch.
* Resources: pods, deployments, secrets, config maps, custom resource
definition.
* More fields: user, resource, level, stage, presence of request and
response objects.
Fixes#49653
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Update comments in pkg/kubeapiserver/authenticator/config.go
**What this PR does / why we need it**:
Make the comments consistent with the function signatures
**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**:
```
NONE
```
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[GCE kube-up] Allow creating/deleting custom network
**What this PR does / why we need it**:
From https://github.com/kubernetes/test-infra/issues/4472.
This is the first step to make PR jobs use custom network instead of auto network (so that we will be less likely hitting subnetwork quota issue).
The last commit is purely for testing out the changes on PR jobs. It will be removed after review.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #NONE.
**Special notes for your reviewer**:
/assign @bowei @nicksardo
**Release note**:
```release-note
NONE
```
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Release NodePorts at the end of test cases
**What this PR does / why we need it**:
#49098 reported a flake of HealthCheck NodePort leak and #49099 fixed it. I don't know why I forgot to check other Node Ports in the test cases. Though I haven't encountered such flake yet, it'd be good to release those Node Ports at the end of test cases to avoid flake.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#49548
Thanks @kargakis for reporting #49548!
**Special notes for your reviewer**:
/cc @deads2k @freehan
**Release note**:
```release-note
NONE
```
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add ApproximatePodTemplateForObject factory method
Makes it possible to get at a pod spec template even if an object is scaled to zero, for use with commands that care about pod templates.
**Release note**:
```release-note
NONE
```
Related downstream patch and use-case: https://github.com/openshift/origin/pull/16379
cc @smarterclayton
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Support autoprobing node-security-group for openstack cloud provider
1. Support autoprobing node-security-group
2. Support multiple Security Groups for cluster's nodes
3. Fix recreating Security Group for cluster's nodes
This is a part of #50726
**Special notes for your reviewer**:
/assign @anguslees
/assign @dims
**Release note**:
```release-note
Support autoprobing node-security-group for openstack cloud provider, Support multiple Security Groups for cluster's nodes.
```
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Add feature gate for allocatable disk eviction
Issue: #52336
This PR adds the local storage feature gate to local storage allocatable eviction.
cc @kubernetes/sig-node-bugs
/assign @jingxu97 @dchen1107
we should target this for 1.7 if possible.
```release-note
fix a bug where disk pressure could trigger prematurely
```
We were exiting at the first mismatched index, but we want to collect
the diffs for all children. Also, we were assuming diffs existed which
was not always true (and was due to other bugs that we weren't catching
before).
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kubelet/cm: remove unneeded fork of 'cat'
Reading a file in Go is perfectly possible without invoking cat.
I also removed an outdated comment.
This is meant to be a trivial/minor code cleanup, nothing more.
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 53668, 53624, 52639, 53581, 51215). 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>.
preserve specified destination path
**Release note**:
```release-note
"kubectl cp" updated to honor destination names
```
**Before**
```
$ kubectl cp foo_dir pod_name:/tmp/bar_dir
$ kubectl exec pod_name -it -- /bin/sh
sh-4.2$
sh-4.2$ ls /tmp
sh-4.2$ foo_dir
```
**After**
```
$ kubectl cp foo_dir pod_name:/tmp/bar_dir
$ kubectl exec pod_name -it -- /bin/sh
sh-4.2$
sh-4.2$ ls /tmp
sh-4.2$ bar_dir
```
**Notable changes to `kubectl cp` After This Patch**
- Copying a directory `bar_dir` to an existing directory in the pod will copy the directory itself, rather than just the file contents:
```bash
*Before*
> remote-pod-shell$ ls /tmp
existing_remote_dir
$ kubectl cp ./my/local/awesome_dir mypod:/tmp/existing_remote_dir
> remote-pod-shell$ ls /tmp
existing_remote_dir
awesome_dir
```
```bash
*After*
> remote-pod-shell$ ls /tmp
existing_remote_dir
$ kubectl cp ./my/local/awesome_dir mypod:/tmp/existing_remote_dir
> remote-pod-shell$ ls /tmp
existing_remote_dir
> remote-pod-shell$ ls /tmp/existing_remote_dir
awesome_dir
```
```
*Before*: Directory contents were merged if a local and remote directory shared the same name
*After*: A new name will be honored for the copied local directory on the remote pod.
If a new name was not specified for the local directory being copied, and it shares the
same name as an already-existing directory on the pod, current behavior will follow and
its contents will be added to those of the already-existing directory.
```
```
*Before*: If a trailing slash (e.g. kubectl cp ./local/dir pod:/tmp) was not added to a directory
name in the destination path (...:/tmp vs /tmp/...), when copying to a pod, `kubectl`
would attempt to copy the local directory under the parent of the remote directory
rather than inside of it.
*After*: Slashes do not alter the behavior of the command, or destination of the intended
source file or directory. With a command such as (kubectl cp ./local_dir pod:/tmp),
`local_dir` would be copied inside of <pod:/tmp> (an error is returned if pod:/tmp is
a file).
```
Related downstream bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1469411
@fabianofranz @kubernetes/sig-cli-misc
Automatic merge from submit-queue (batch tested with PRs 53668, 53624, 52639, 53581, 51215). 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 extra log and node env metadata support.
This PR:
1) Make log collection logic extensible via flags, so that we could collect more daemon logs in this PR. (e.g. `containerd.log` and `cri-containerd.log`)
2) Add extra node metadata from specified environment variable. (e.g. `PULL_REFS` in prow).
@krzyzacy I'll change the test-infra side soon. Let's discuss whether we should move/copy this code to test infra in your refactoring.
/cc @dchen1107 @yujuhong @abhi @mikebrow
```release-note
NONE
```
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update sample of sample-apiserver
**What this PR does / why we need it**:
Update the yaml files of sample-apiserver
**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**:
```
NONE
```
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Local e2e test fixes
**What this PR does / why we need it**:
1. Remove tests using TestContainerOutput because they don't wait for unmount
2. Fix scheduling error test to handle updated event msgs.
@kubernetes/sig-storage-pr-reviews
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#53597
**Release note**:
NONE
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Bump kube-dns version used in e2e
**What this PR does / why we need it**: Updates the version of kube-dns used in the e2e network tests.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: ref #53153
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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