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fix help message of kubeconfig-dir option(kubeadm alpha phase kubeconfig all)

**What this PR does / why we need it**:
This patch will fix wrong help message.

The command is kubeadm alpha phase kubeconfig [command]
The help message is for --kubeconfig-dir option.

kubeconfig-dir is not port.(It is directory)
So, I fixed the message.

**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`

/sig cluster-lifecycle

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support simultaneous kubeadm --v and --config

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

Providing -v and --config parameters to increase verbosity while providing a kubeadm.config results in an error rather than providing the requested verbosity.

**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/kubeadm/issues/765

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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wire print flags through get.go

**Release note**:
```release-note
NONE
```

Adds the PrintFlags pattern to `get.go`.
Prerequisite to ongoing server-side printing work.

cc @soltysh @deads2k

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kubeadm: add test coverage to join.go

**What this PR does / why we need it**:
Add test coverage to `join.go`.

A separate commit exports the function `ValidateJoinCommandLine()` from `join.go` so that testing this file is more flexible.

Test coverage is at 76%. One untested part is successfully running `Join.Run()` without errors, but that requires a valid HTTPS API server running and a valid config. i got this partially working but gave up because i faced some cert / config blockers. suggestions on how to get that to work easily are welcome.

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

NONE

**Special notes for your reviewer**:

NONE

**Release note**:

```release-note
NONE
```

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scheduler: fix race condition in equivalence cache

**What this PR does / why we need it**:
This adds an equivalence cache test to exercise the race condition observed in https://github.com/kubernetes/kubernetes/issues/62921 and then fixes the race.

The `Cache` interface needed a new method to check whether a `NodeInfo` is stale, and `genericScheduler` needed some plumbing to make the `Cache` object available to `podFitsOnNode()`.

The solution is, right before writing to the eCache, check the scheduler cache to see if the current `NodeInfo` object is out of date. If the node is out of date, then don't write to the eCache. If the `NodeInfo` is stale, it is because of a cache update that should also invalidate the eCache entry. That invalidation either happens before `podFitsOnNode()` acquires the eCache lock (original bug, so we don't do the write) or blocks until we release that lock (removing the potentially bad entry).

Fixes #62921 

**Special notes for your reviewer**:

**Release note**:

equivalence cache is still alpha, so no release note.
```release-note
NONE
```
/sig scheduling
/assign bsalalamat
/assign resouer

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Refactor patch

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

Continue making patch handler readable.

**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
```

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bazel: generate pkg/generated/bindata.go at build time and remove from repo

**What this PR does / why we need it**: `pkg/generated/bindata.go` is a generated file, and it's one that's easy for us to handle in bazel (we already handle `test/e2e/generated/bindata.go`, for example).

The translations also have an additional generation step (`hack/update-translations.sh`) which I'm not handling here, but this enables us to remove the `bindata.go` files from the tree (when combined with #62151).

**Release note**:

```release-note
NONE
```

/assign @rmmh @cblecker @thockin @fejta

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update all set and get  commands for iostreams

Sweeping more commands for the iostream pattern.   Trying to keep things about 300 lines each.  Delete is going to be big


/assign @juanvallejo 

```release-note
NONE
```

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make describers more generic from the CLI

I've made this change very small so the intent and explanation make sense to people.

Clients are not generic.  Client**Configs** are generic.  We faced this distinction in the apiserver and it took us a little to hurdle it.  When you try to provide a generic example or function, you need to provide Client**Config**, not a kube clientset.  The reason is that the code you're calling may have generated their own clientset, may want to use a dynamic one, or may want to a simple restclient.  As we seek to make `kubectl` primitives more generally applicable, this is an example we'll want to follow.  I suspect we'll be making more changes along these veins as we tease out the generic pieces of `kubectl ` to make a friendly CLI library.


@kubernetes/sig-cli-maintainers 

/hold

Holding for a few days to make sure that people have time to read and digest.

```release-note
NONE
```

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Removed e2e test on empty NodeAffinity.
Signed-off-by: Da K. Ma <klaus1982.cn@gmail.com>

**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 #63027 

**Special notes for your reviewer**:
In #62448, we removed the validation on empty `nodeAffinity` which is already handled in scheduler: select no objects.

**Release note**:
```release-note
None
```

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eliminate indirection from type registration

Some years back there was a partial attempt to revamp api type registration, but the effort was never completed and this was before we started splitting schemes. With separate schemes, the idea of partial registration no longer makes sense.  This pull starts removing cruft from the registration process and pulls out a layer of indirection that isn't needed.

@kubernetes/sig-api-machinery-pr-reviews 
@lavalamp @cheftako @sttts @smarterclayton 

Rebase cost is fairly high, so I'd like to avoid this lingering.

/assign @sttts 
/assign @cheftako 

```release-note
NONE
```

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add warnings on using pod-infra-container-image for remote container runtime

**What this PR does / why we need it**:
We should warn on using `--pod-infra-container-image` to avoid confusions, when users are using remote container runtime.

**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 #55676,#62388,#62732

**Special notes for your reviewer**:
/cc @kubernetes/sig-node-pr-reviews 

**Release note**:

```release-note
add warnings on using pod-infra-container-image for remote container runtime
```

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Update libcontainer to include PRs with fixes to systemd cgroup driver

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

PR opencontainers/runc#1754 works around an issue in manager.Apply(-1) that makes Kubelet startup hang when using systemd cgroup driver (by adding a timeout) and further PR opencontainers/runc#1772 fixes that bug by checking the proper error status before waiting on the channel.
    
PR opencontainers/runc#1776 checks whether Delegate works in slices, which keeps libcontainer systemd cgroup driver working on systemd v237+.

**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 #61474

**Special notes for your reviewer**:
/assign @derekwaynecarr
cc @vikaschoudhary16 @sjenning @adelton @mrunalp 

**Release note**:

```release-note
NONE
```

Because the scheduler takes a snapshot of cache data at the start of
each scheduling cycle, updates to the equivalence cache should be
skipped if there was a cache update during the cycle.

If the current NodeInfo becomes stale while we evaluate predicates, we
will not write any results into the equivalence cache. We will still use
the results for the current scheduling cycle, though.

This allows scheduler implementations to check if a NodeInfo object
matches the current state of the cache. Useful if the NodeInfo in
question came from a Snapshot() for example.

Add a unit test that invalidates equivalence cache during a scheduling
cycle. This exercises the bug described in
https://github.com/kubernetes/kubernetes/issues/62921

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Deprecate kubectl rolling-update

**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 #23276 

/assign @juanvallejo @tnozicka 

**Release note**:
```release-note
Deprecate kubectl rolling-update 
```

This is the combination of a series of changes which individually don't
make any behavioral changes. The original commits are preserved in my
own fork in the refactor-patch-complete branch, as when squashed this is
impossible to review.

This turned a big function with lots of parameters and closures into an
object with multiple functions, fewer closures and more well documented
state transitions.

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[prometheus addon] Add readme

This PR adds README file that warns users about it's intended use, and redirects to more mature projects.

```release-note
NONE
```
/cc @brancz

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make a simple dynamic client that is easy to use

The dynamic client has annoyed me for the last time!  The existing one takes arguments at odd levels, requires lots of information to instantiate, does some weird pool thing, and uses unusual types.  This creates an interface like this:

```go

type DynamicInterface interface {
	ClusterResource(resource schema.GroupVersionResource) DynamicResourceInterface
	NamespacedResource(resource schema.GroupVersionResource, namespace string) DynamicResourceInterface
}

type DynamicResourceInterface interface {
	Create(obj *unstructured.Unstructured) (*unstructured.Unstructured, error)
	Update(obj *unstructured.Unstructured) (*unstructured.Unstructured, error)
	UpdateStatus(obj *unstructured.Unstructured) (*unstructured.Unstructured, error)
	Delete(name string, options *metav1.DeleteOptions) error
	DeleteCollection(options *metav1.DeleteOptions, listOptions metav1.ListOptions) error
	Get(name string, options metav1.GetOptions) (*unstructured.Unstructured, error)
	List(opts metav1.ListOptions) (*unstructured.UnstructuredList, error)
	Watch(opts metav1.ListOptions) (watch.Interface, error)
	Patch(name string, pt types.PatchType, data []byte, subresources ...string) (*unstructured.Unstructured, error)
}
```

You create it from just a `rest.Config`, no mapper, no path resolving func, no trying to set up codecs ahead of time, no unnecessary pool.  It just works.

I updated the namespace controller to use it and I updated the existing dynamic client to leverage it so that I get all their tests for "free".

@kubernetes/sig-api-machinery-pr-reviews 
@liggitt @smarterclayton @bparees @sttts @ironcladlou I know each of us has struggled with the dynamic client in our time.
@lavalamp @caesarxuchao This is vastly simplifying.  I'm eager to drop the old `ClientPool`.  client-go will technically have another incompatible semver this release.  I'm up for changing it in tree.


```release-note
client-go developers: the new dynamic client is easier to use and the old is deprecated, you must switch.
```

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etcd version typo fix

**What this PR does / why we need it**:
Allows BUNDLED_VERSIONS string to be parsed correctly.

```release-note
NONE
```

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Fix discovery default timeout test

/assign @sttts 

**Release note**:
```release-note
NONE
```

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Revert "gce: move etcd dir cleanup to manifests"

Fixes https://github.com/kubernetes/kubernetes/issues/63134

This reverts commit ae73bed1.

```release-note
NONE
```

/cc @wojtek-t

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add node shutdown taint

**What this PR does / why we need it**: we need node stopped taint in order to detach volumes immediately without waiting timeout. More info in issue ticket #58635 

**Which issue(s) this PR fixes** 
Fixes #58635

**Special notes for your reviewer**: this was reverted, original PR https://github.com/kubernetes/kubernetes/pull/59323 Hopefully now bugs are fixed. However, I will execute more tests manually today.

**Release note**:
```release-note
NONE
```

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ipvs proxy bind externalIP and lb ingress.IP to dummy interface

**What this PR does / why we need it**:
IPVS proxy bind externalIP and lb ingress.IP to dummy interface.

**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 #59976

**Special notes for your reviewer**:

**Release note**:
```release-note
NONE
```

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Clean up and remove unused deps

**What this PR does / why we need it**:
The `examples/` directory was removed in #61246, but it's deps weren't cleaned up.

**Release note**:
```release-note
NONE
```