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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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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solution is, right before writing to the eCache, check the scheduler cache to see if the current `NodeInfo` object is out of date. If the node is out of date, then don't write to the eCache.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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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
```
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.
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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
```
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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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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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Fix device plugin re-registration
**What this PR does / why we need it**:
While registering a new endpoint, device manager copies all the devices from the old endpoint for the same resource and then it stops the old endpoint and starts the new endpoint.
There is no sync between stopping the old and starting the new. While stopping the old, manager marks devices(which are copied to new endpoint as well) as "Unhealthy".
In the endpoint.go, when after restart, plugin reports devices healthy, same health state (healthy) is found in the endpoint database and endpoint module does not update manager database.
Solution in the PR is to mark devices as unhealthy before copying to new endpoint.
**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#62773
**Special notes for your reviewer**:
**Release note**:
```release-note
None
```
/cc @jiayingz @vishh @RenaudWasTaken @derekwaynecarr
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fix hostport checking for initContainers since they run in sequential order
**What this PR does / why we need it**:
Fix hostport checking for initContainers since they run in sequential order
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
partial Fixes#57443
**Special notes for your reviewer**:
/assign @CaoShuFeng @dims
**Release note**:
```release-note
None
```
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Support nsenter in non-systemd environments
**What this PR does / why we need it**:
In our CI, we run kubekins image for most of the jobs. This is a
debian image with upstart and does not enable systemd. So we should
* Bailout if any binary is missing other than systemd-run.
* SupportsSystemd should check the binary path to correctly
identify if the systemd-run is present or not
* Pass the errors back to the callers so kubelet is forced to
fail early when there is a problem. We currently assume
that all binaries are in the root directory by default which
is wrong.
**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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dockershim/sandbox: clean up pod network even if SetUpPod() failed
If the CNI network plugin completes successfully, but something fails
between that success and dockerhsim's sandbox setup code, plugin resources
may not be cleaned up. A non-trivial amount of code runs after the
plugin itself exits and the CNI driver's SetUpPod() returns, and any error
condition recognized by that code would cause this leakage.
The Kubernetes CRI RunPodSandbox() request does not attempt to clean
up on errors, since it cannot know how much (if any) networking
was actually set up. It depends on the CRI implementation to do
that cleanup for it.
In the dockershim case, a SetUpPod() failure means networkReady is
FALSE for the sandbox, and TearDownPod() will not be called later by
garbage collection even though networking was configured, because
dockershim can't know how far SetUpPod() got.
Concrete examples include if the sandbox's container is somehow
removed during during that time, or another OS error is encountered,
or the plugin returns a malformed result to the CNI driver.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1532965
```release-note
NONE
```
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Fix qosReserved json tag (lowercase qos, instead of uppercase QOS)
The API conventions specify that json keys should start with a lowercase
character, and if the key starts with an initialism, all characters in
the initialism should be lowercase. See `tlsCipherSuites` as an example.
API Conventions:
https://github.com/kubernetes/community/blob/master/contributors/devel/api-conventions.md
>All letters in the acronym should have the same case, using the
>appropriate case for the situation. For example, at the beginning
>of a field name, the acronym should be all lowercase, such as "httpGet".
Follow up to: https://github.com/kubernetes/kubernetes/pull/62925
```release-note
NONE
```
@sjenning @derekwaynecarr
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remove confusing flexibility for metadata interpretation
Metadata accessors are coded in. This means that we don't need to inject flexibility, the flexibility is already present based on what your code relies up. This removes the per-individual resource injection which simplifies all calling code.
intersection of @kubernetes/sig-api-machinery-pr-reviews @kubernetes/sig-cli-maintainers
```release-note
NONE
```
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Fix some bugs inside CSI volume plugin unit test TestAttacherMountDevice
**What this PR does / why we need it**:
Fix two bugs inside CSI volume plugin unit test `TestAttacherMountDevice`.
**Release note**:
```release-note
None
```
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reset resultRun to 0 on pod restart
**What this PR does / why we need it**:
The resultRun should be reset to 0 on pod restart, so that resultRun on the first failure of the new container will be 1, which is correct. Otherwise, the actual FailureThreshold after restarting will be `FailureThreshold - 1`.
**Which issue(s) this PR fixes**:
This PR is related to https://github.com/kubernetes/kubernetes/issues/53530. https://github.com/kubernetes/kubernetes/pull/46371 fixed that issue but there's still a little problem like what I said above.
**Special notes for your reviewer**:
**Release note**:
```release-note
fix resultRun by resetting it to 0 on pod restart
```
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unpack dynamic kubelet config payloads to files
This PR unpacks the downloaded ConfigMap to a set of files on the node.
This enables other config files to ride alongside the
KubeletConfiguration, and the KubeletConfiguration to refer to these
cohabitants with relative paths.
This PR also stops storing dynamic config metadata (e.g. current,
last-known-good config records) in the same directory as config
checkpoints. Instead, it splits the storage into `meta` and
`checkpoints` dirs.
The current store dir structure is as follows:
```
- dir named by --dynamic-config-dir (root for managing dynamic config)
| - meta (dir for metadata, e.g. which config source is currently assigned, last-known-good)
| - current (a serialized v1 NodeConfigSource object, indicating the assigned config)
| - last-known-good (a serialized v1 NodeConfigSource object, indicating the last-known-good config)
| - checkpoints (dir for config checkpoints)
| - uid1 (dir for unpacked config, identified by uid1)
| - file1
| - file2
| - ...
| - uid2
| - ...
```
There are some likely changes to the above structure before dynamic config goes beta, such as renaming "current" to "assigned" for clarity, and extending the checkpoint identifier to include a resource version, as part of resolving #61643.
```release-note
NONE
```
/cc @luxas @smarterclayton
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Add --ipvs-exclude-cidrs flag to kube-proxy.
**What this PR does / why we need it**:
Add a flag to kube-proxy called --ipvs-exclude-cidrs. This flag allows a user to specify a list of CIDR ranges that should not be included in the cleanup of IPVS rules.
Fixes: #59507
**Release note**:
```
Use --ipvs-exclude-cidrs to specify a list of CIDR's which the IPVS proxier should not touch when cleaning up IPVS rules.
```
/assign @m1093782566
If the CNI network plugin completes successfully, but something fails
between that success and dockerhsim's sandbox setup code, plugin resources
may not be cleaned up. A non-trivial amount of code runs after the
plugin itself exits and the CNI driver's SetUpPod() returns, and any error
condition recognized by that code would cause this leakage.
The Kubernetes CRI RunPodSandbox() request does not attempt to clean
up on errors, since it cannot know how much (if any) networking
was actually set up. It depends on the CRI implementation to do
that cleanup for it.
In the dockershim case, a SetUpPod() failure means networkReady is
FALSE for the sandbox, and TearDownPod() will not be called later by
garbage collection even though networking was configured, because
dockershim can't know how far SetUpPod() got.
Concrete examples include if the sandbox's container is somehow
removed during during that time, or another OS error is encountered,
or the plugin returns a malformed result to the CNI driver.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1532965
The API conventions specify that json keys should start with a lowercase
character, and if the key starts with an initialism, all characters in
the initialism should be lowercase. See `tlsCipherSuites` as an example.
API Conventions:
https://github.com/kubernetes/community/blob/master/contributors/devel/api-conventions.md
>All letters in the acronym should have the same case, using the
>appropriate case for the situation. For example, at the beginning
>of a field name, the acronym should be all lowercase, such as "httpGet".
Automatic merge from submit-queue (batch tested with PRs 63033, 62993). 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 a bug in serviceaccount validate.
**What this PR does / why we need it**:
As the patch shows, the original idea here is to make sure that the bounded object is still exists in
cluster. But the compare is wrong.
It could cause recreate object validate through bug.
For example, a user requests a token which bounded with Pod A. The token should become invalid after Pod A's deletion. But if someone create a Pod with same name with Pod A, the token would be valid which should be not.
**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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Added MatchFields to NodeSelectorTerm
**What this PR does / why we need it**:
**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 #61410
**Special notes for your reviewer**:
According to the discussion at #61410 , we'd like to introduce a new selector term for node's field.
**Release note**:
```release-note
Added `MatchFields` to `NodeSelectorTerm`; in 1.11, it only support `metadata.name`.
```
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Fix scheduler informers to receive events for all the pods in the cluster
**What this PR does / why we need it**:
This PR has an important change to fix scheduler informers. More information in #63002.
**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#63002
**Special notes for your reviewer**:
This should be back-ported to 1.10 and 1.9.
**Release note**:
```release-note
Fix scheduler informers to receive events for all the pods in the cluster.
```
Kubernetes Submit Queue