Automatic merge from submit-queue (batch tested with PRs 52662, 53547, 53588, 53573, 53599). 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 const instead of hard code for volume plugin
**What this PR does / why we need it**:
nits: cleanup hard-coded volume plugin name
**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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[OpenStack]Add codes to check the count of nodes(members)
After merging this PR(#53146), if there is no available nodes for
the loadbalancer service, UpdateLoadBalancer() will run panic.
**Release note**:
```release-note
NONE
```
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add possibility to ignore volume label in dynamic provisioning
**What this PR does / why we need it**: this is needed if openstack cinder zone name does not match to compute zone names. For instance if there is only one cinder zone and many compute zones.
**Which issue this PR fixes**: fixes#53488
**Special notes for your reviewer**:
```release-note
NONE
```
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Improve `horizontal.go` documentation
**What this PR does / why we need it**:
Resolve the remaining `golint` errors in the
`pkg/controller/podautoscaler` package by improving the documentation
in `horizontal.go`. Now all public methods have comments.
**Special notes for your reviewer**:
Re discussions in [this pr](https://github.com/kubernetes/kubernetes/pull/52238).
**Release note**:
```release-note
NONE
```
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validate kube-proxy options
Signed-off-by: allencloud <allen.sun@daocloud.io>
**What this PR does / why we need it**:
I found that some components does not validate the config at the startup of itself. Without this, startup will bring some bad things. And I think fail fast can save customer's time and make thing simple and clear.
This PR add validation of kube-proxy's configuration.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fixes https://github.com/kubernetes/kubernetes/issues/53578
**Special notes for your reviewer**:
Actually I only add a file named validation.go in `pkg/apis/componentconfig/validation/`, while I see in every folder, there is a file named `BUILD`, I hope to know how to add this file.
**Release note**:
```release-note
NONE
```
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pass labelSelector to server side opaquely
**What this PR does / why we need it**:
From @smarterclayton
> The server is responsible for handling label selection for the most part. There is some level of client side processing possible, but for the most part `label selector` should be able to be passed opaquely.
xref #50140
**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**:
/assign @smarterclayton @liggitt
**Release note**:
```release-note
None
```
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Refactor nsenter
**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#51273
**Special notes for your reviewer**:
/assign @jsafrane
**Release note**:
```release-note
None
```
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add --dry-run option to kubectl drain
**Release note**:
```release-note
Added --dry-run option to `kubectl drain`
```
Adds a `--dry-run` flag to `kubectl <cordon, uncordon, drain>`
@fabianofranz @kubernetes/sig-cli-misc
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kubectl cp command supports coping remote file into local directory
**What this PR does / why we need it**:
before this PR, `kubectl cp testpod:/tmp/testfile /home` will fail with error:
>error: open /home: is a directory
with this PR, `kubectl cp testpod:/tmp/testfile /home` will successfully copy remote `testfile` into directory `/home`
other minor improvements to make codes follow Go code conventions and more robust
**Release note**:
```
kubectl cp subcommand supports coping remote file into local directory now.
```
Signed-off-by: bruceauyeung <ouyang.qinhua@zte.com.cn>
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Add unittest for describe LimitRange
**What this PR does / why we need it**:
Add unittest for describe LimitRange
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 52768, 51898, 53510, 53097, 53058). 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 version comparison for versions with preRelease components
**What this PR does / why we need it**:
Fixes algorithm of comparing versions in pkg/util/version.
Also improve unit testing, so reverse comparison of versions also works
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#53055
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Run IPVS proxier UTs everywhere - include !linux platfrom
**What this PR does / why we need it**:
IPVS proxier UTs should run everywhere, including !linux platfrom, which will help a lot when developing in windows platfrom.
**Which issue this PR fixes**:
fixes#53099
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 52768, 51898, 53510, 53097, 53058). 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>.
Ability to run the openstack tests against DevStack
**What this PR does / why we need it**:
Some of the environment variables have changed as devstack defaults
have changed. So look for the older env variables first and try the
newer ones later.
At a minimum you need the following for v3 authentication which is
the default with latest devstack. If you miss the Tenant information
then the token issued will be a unscoped token (and will not have any
service catalog information).
OS_AUTH_URL=http://192.168.0.42/identity
OS_REGION_NAME=RegionOne
OS_USERNAME=demo
OS_PASSWORD=supersecret
OS_TENANT_NAME=demo
OS_USER_DOMAIN_ID=default
**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 52768, 51898, 53510, 53097, 53058). 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>.
bug(cli)fix kubectl config unset unexist map key will add this key, s…
…hould tell user this key not exist
**What this PR does / why we need it**:
Fixes#43769
**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**:
cc @kubernetes/sig-cli-pr-reviews
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 53434, 53202). 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>.
code-generator: unify generator main funcs and prepare for launching from one binary
- remove "generated by client-gen with custom arguments" message as this does not
make sense in the times of k8s.io/code-generator
- unify generator main funcs and explicitly call pflag.AddFlags and pflag.Parse. This
will allow to instantiate the generators also from other places.
Requires https://github.com/kubernetes/gengo/pull/80.
Closes https://github.com/kubernetes/kubernetes/issues/53522.
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Fix a bug with exposing prometheus client metrics in multiple components
I think this is a bug caused by splitting the repos: prometheus metrics are registered in a module that initialized metrics client-go never uses.
```release-note
Fix a bug that prevents client-go metrics from being registered in prometheus in multiple components.
```
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Add cheftako to CP reviewers and wlan0 to approvers.
**What this PR does / why we need it**: wlan0 is helping to lead the separate cloud providers effort and so should be an approver. I am helping to do the gce effort and should probably be a reviewer.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: owners
**Special notes for your reviewer**:
**Release note**:
```release-note NONE
```
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Enable event logging in the service controller
**What this PR does / why we need it**:
This PR enables logging for the events in the service controller which keeps parity with the [node controller](https://github.com/kubernetes/kubernetes/blob/master/pkg/controller/cloud/node_controller.go#L83).
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#53528
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/cc @luxas @wlan0 @jhorwit2
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implement fakeIPVS update virtual server
**What this PR does / why we need it**:
* Implement UpdateVirtualServer() for FakeIPVS because ipvs/proxier needs it.
* Add UTs - Since there are some real logics in fakeIPVS interface, it's important to add some UTs which can help avoiding some mistakes.
**Which issue this PR fixes**: fixes#53518
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 53278, 53184). 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 API version apps/v1, and bump DaemonSet to apps/v1
**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)*: kubernetes/features#484
**Special notes for your reviewer**: This PR targets `master`, as a backup if #53223 (targeting features branch) falls through
@kubernetes/sig-apps-api-reviews
**Release note**:
```release-note
Add API version apps/v1, and bump DaemonSet to apps/v1
```
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Fixes the flaky TestDevicePluginReRegistration.
In the current test, there is a race that the new device plugin endpoint
may not be added to the device plugin manager endpoints at the time when
we call manager.Devices(). Added the checking and waiting for endpoint
updates before calling manager.Devices() in the test.
Tested:
go test -race -count 500 k8s.io/kubernetes/pkg/kubelet/deviceplugin -run
TestDevicePluginReRegistration -timeout 5h
**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/52560
**Special notes for your reviewer**:
**Release note**:
```release-note
```
Automatic merge from submit-queue (batch tested with PRs 53418, 53366, 53115, 53402, 53130). 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>.
Implement delete real server for fakeIPVS and add UTs
**What this PR does / why we need it**:
* Implement DeleteRealServer() for FakeIPVS because ipvs/proxier needs it.
* Add UTs - Since there are some real logics in fakeIPVS interface, it's important to add some UTs which can help avoiding some mistakes. Sadly, there is already a bug :(
**Which issue this PR fixes**:
fixes#53137
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 53418, 53366, 53115, 53402, 53130). 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>.
Ignore unexported fields in import_known_versions_test
Tests currently fail with:
"import_known_versions_test.go:122: Unexpected type uint in ..."
**What this PR does / why we need it**:
Running `make test` against the latest (f11a551f64) fails for me with:
```
import_known_versions_test.go:122: Unexpected type uint in schema.GroupVersionKind{Group:"apps", Version:"__internal", Kind:"DaemonSet"}
import_known_versions_test.go:122: Unexpected type uint in schema.GroupVersionKind{Group:"apps", Version:"__internal", Kind:"DaemonSet"}
import_known_versions_test.go:124: extensions.DaemonSet:
import_known_versions_test.go:124: extensions.DaemonSetSpec:
import_known_versions_test.go:124: api.PodTemplateSpec:
import_known_versions_test.go:124: api.PodSpec:
import_known_versions_test.go:124: []api.Container:
import_known_versions_test.go:124: api.Container:
import_known_versions_test.go:124: []api.EnvVar:
import_known_versions_test.go:124: api.EnvVar:
import_known_versions_test.go:124: *api.EnvVarSource:
import_known_versions_test.go:124: api.EnvVarSource:
import_known_versions_test.go:124: *api.ResourceFieldSelector:
import_known_versions_test.go:124: api.ResourceFieldSelector:
import_known_versions_test.go:124: resource.Quantity:
import_known_versions_test.go:124: resource.infDecAmount:
import_known_versions_test.go:124: *inf.Dec:
import_known_versions_test.go:124: inf.Dec:
import_known_versions_test.go:124: big.Int:
import_known_versions_test.go:124: big.nat:
import_known_versions_test.go:124: big.Word:
```
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#53508
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 53418, 53366, 53115, 53402, 53130). 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 the version detection of OpenStack Cinder
**What this PR does / why we need it**:
When running Kubernetes against an installation of DevStack which
deploys the Cinder service at a path rather than a port (ex:
http://foo.bar/volume rather than http://foo.bar:xxx), the version
detection fails. It is better to use the OpenStack service catalog.
OTOH, when initialize cinder client, kubernetes will check the
endpoint from the OpenStack service catalog, so we can do this
version detection by it.
There are two case should be fixed in other PR:
1. revisit the version detection after supporting Cinder V3 API.
2. add codes to support MicroVersion after gophercloud supports MicroVersion.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#50461
**Special notes for your reviewer**:
/assign @dims
/assign @xsgordon
**Release note**:
```release-note
Using OpenStack service catalog to do version detection
```
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Minior cleanup in pkg/controller/node/ipam/sync/sync.go
**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
```
Some of the environment variables have changed as devstack defaults
have changed. So look for the older env variables first and try the
newer ones later.
At a minimum you need the following for v3 authentication which is
the default with latest devstack. If you miss the Tenant information
then the token issued will be a unscoped token (and will not have any
service catalog information).
OS_AUTH_URL=http://192.168.0.42/identity
OS_REGION_NAME=RegionOne
OS_USERNAME=demo
OS_PASSWORD=supersecret
OS_TENANT_NAME=demo
OS_USER_DOMAIN_ID=default
Automatic merge from submit-queue (batch tested with PRs 53227, 53120). 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 ipv4 in pkg/util/ipvs
**What this PR does / why we need it**:
remove ipv4 in util/ipvs
**Which issue this PR fixes**:
xref: #51866
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 51750, 53195, 53384, 53410). 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: Handle missing subnet for legacy networks and auto networks with unique subnet names
Fixes#53409
/assign @bowei
Tested on three GKE clusters with automatic, manual, and legacy networks.
**Release note**:
```release-note
GCE: Fixes ILB sync on legacy networks and auto networks with unique subnet names
```
Automatic merge from submit-queue (batch tested with PRs 51750, 53195, 53384, 53410). 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 http request timeout for OpenStack cloud provider
**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#53191
**Special notes for your reviewer**:
/assign @NickrenREN @dims @FengyunPan
**Release note**:
```release-note
None
```
Automatic merge from submit-queue (batch tested with PRs 51750, 53195, 53384, 53410). 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>.
outputs `<none>` for colums not found
**What this PR does / why we need it**:
outputs `<none>` for columns specified by `-o custom-columns` but not found in object
currently kubectl outputs an error of "xxx is not found" when a column is not in the returned json (omitted because of empty value or no such field in the object type at all). This PR suppress this error but outputs `<none>` at that field. This makes it convenient to output the objects details, especially when getting objects of different type in one command.
example:
```
$ kubectl get deploy,rs,po -o custom-columns=NAMESPACE:.metadata.namespace,NAME:.metadata.name,REPLICAS:.status.replicas
NAMESPACE NAME REPLICAS
default deck 1
default deck-433074128 1
default deck-433074128-vxcg9 <none>
```
**Special notes for your reviewer**:
**Release note**:
```release-note
outputs `<none>` for columns specified by `-o custom-columns` but not found in object
```
@kubernetes/kubectl-reviewers
Automatic merge from submit-queue (batch tested with PRs 53454, 53446, 52935, 53443, 52917). 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 --selector flag support
**Release note**:
```release-note
NONE
```
Adds --selector option to kubectl drain,cordon,uncordon, performing
each action on a list of nodes matching the given label.
If at least one node fails to be cordoned/uncordoned, the command will
continue to operate on any remaining nodes, uninterrupted, reporting
any errors it encounters along the way.
If at least one node fails to be drained, the command will halt, printing
the immediate error encountered, and a list of nodes yet to be drained
(including the node that just failed to be drained).
cc @kubernetes/sig-cli-misc @fabianofranz @soltysh
Automatic merge from submit-queue (batch tested with PRs 53454, 53446, 52935, 53443, 52917). 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 pointer for PSP allow escalation
Fixes#53437
The `AllowPrivilegeEscalation` field was added to PodSpec and PodSecurityPolicySpec in 1.8.0.
In order to remain compatible with pre-1.8.0 behavior, PodSecurityPolicy objects created against a previous release must not restrict this field, which means the field must default to true in PodSecurityPolicySpec. However, the field was added as a `bool`, not a `*bool`, which means that no defaulting is possible.
We have two options:
1. Require all pre-existing PodSecurityPolicy objects that intend to allow privileged permissions to update to set this new field to true
2. Change the field to a `*bool` and default it to true.
This PR does the latter. With this change, we have the following behavior:
A 1.8.1+ client/server now has three ways to serialize:
* `nil` values are dropped from serialization (because `omitempty`), which is interpreted correctly by other 1.8.1+ clients/servers, and is interpreted as false by 1.8.0
* `false` values are serialized and interpreted correctly by all clients/servers
* `true` values are serialized and interpreted correctly by all clients/servers
A 1.8.0 client/server has two ways to serialize:
* `false` values are dropped from serialization (because `omitempty`), which is interpreted as `false` by other 1.8.0 clients/servers, but as `nil` (and therefore defaulting to true) by 1.8.1+ clients/servers
* `true` values are serialized and interpreted correctly by all clients/servers
The primary concern is the 1.8.0 server dropping the `false` value from serialization, but I consider the compatibility break with pre-1.8 behavior to be more severe, especially if we can resolve the regression in an immediate point release.
```release-note
PodSecurityPolicy: Fixes a compatibility issue that caused policies that previously allowed privileged pods to start forbidding them, due to an incorrect default value for `allowPrivilegeEscalation`. PodSecurityPolicy objects defined using a 1.8.0 client or server that intended to set `allowPrivilegeEscalation` to `false` must be reapplied after upgrading to 1.8.1.
```
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Remove ipv4 constraint of Node IPs in ipvs proxier
**What this PR does / why we need it**:
We are targeting to IPV6. So, we should remove ipv4 constraint of Node IPs in ipvs proxier.
Besides, adding some log messages.
**Which issue this PR fixes**:
xref #51866
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 53454, 53446, 52935, 53443, 52917). 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>.
kubelet: add latency metrics to network plugin manager
This PR adds latency metrics to the network plugin operations, namely `GetPodNetworkStatus()`, `SetUpPod()`, and `TearDownPod()`.
I recently had to debug and issue where a PLEG relist hang was occurring due to a hang in a CNI plugin and it would have been really nice to have these. Between the these new metrics and `docker_operations_latency_microseconds`, we will be able to account for nearly all the time consuming routines in the PLEG relist.
@derekwaynecarr @smarterclayton @eparis @vishh
```release-note
Metrics were added to network plugin to report latency of CNI operations
```
/sig node
