Automatic merge from submit-queue (batch tested with PRs 36263, 36755, 37357, 37222, 37524)
Add flag to enable contention profiling in scheduler.
```release-note
Add flag to enable contention profiling in scheduler.
```
Automatic merge from submit-queue
Fix default Seccomp profile directory
Looks like some of the refactoring caused us to lose the default
directory. Setting that explicitly here.
Fixes#36350
Provides an opt-in flag, --experimental-fail-swap-on (and corresponding
KubeletConfiguration value, ExperimentalFailSwapOn), which is false by default.
Automatic merge from submit-queue
Rename experimental-runtime-integration-type to experimental-cri
Also rename the field in the component config to `EnableCRI`
Automatic merge from submit-queue
Initial work on running windows containers on Kubernetes
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This is the first stab at getting the Kubelet running on Windows (fixes#30279), and getting it to deploy network-accessible pods that consist of Windows containers. Thanks @csrwng, @jbhurat for helping out.
The main challenge with Windows containers at this point is that container networking is not supported. In other words, each container in the pod will get it's own IP address. For this reason, we had to make a couple of changes to the kubelet when it comes to setting the pod's IP in the Pod Status. Instead of using the infra-container's IP, we use the IP address of the first container.
Other approaches we investigated involved "disabling" the infra container, either conditionally on `runtime.GOOS` or having a separate windows-docker container runtime that re-implemented some of the methods (would require some refactoring to avoid maintainability nightmare).
Other changes:
- The default docker endpoint was removed. This results in the docker client using the default for the specific underlying OS.
More detailed documentation on how to setup the Windows kubelet can be found at https://docs.google.com/document/d/1IjwqpwuRdwcuWXuPSxP-uIz0eoJNfAJ9MWwfY20uH3Q.
cc: @ikester @brendandburns @jstarks
Automatic merge from submit-queue
[Kubelet] Use the custom mounter script for Nfs and Glusterfs only
This patch reduces the scope for the containerized mounter to NFS and GlusterFS on GCE + GCI clusters
This patch also enabled the containerized mounter on GCI nodes
Shepherding multiple PRs through the submit queue is painful. Hence I combined them into this PR. Please review each commit individually.
cc @jingxu97 @saad-ali
https://github.com/kubernetes/kubernetes/pull/35652 has also been reverted as part of this PR
Automatic merge from submit-queue
rename kubelet flag mounter-path to experimental-mounter-path
```release-note
* Kubelet flag '--mounter-path' renamed to '--experimental-mounter-path'
```
The feature the flag controls is an experimental feature and this renaming ensures that users do not depend on this feature just yet.
In order to be able to use new mounter library, this PR adds the
mounterPath flag to kubelet which passes the flag to the mount
interface. If flag is empty, mount uses default mount path.
Automatic merge from submit-queue
WIP: Remove the legacy networking mode
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**What this PR does / why we need it**:
Removes the deprecated configure-cbr0 flag and networking mode to avoid having untested and maybe unstable code in kubelet, see: #33789
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*:
fixes#30589fixes#31937
**Special notes for your reviewer**: There are a lot of deployments who rely on this networking mode. Not sure how we deal with that: force switch to kubenet or just delete the old deployment?
But please review the code changes first (the first commit)
**Release note**:
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```release-note
Removed the deprecated kubelet --configure-cbr0 flag, and with that the "classic" networking mode as well
```
PTAL @kubernetes/sig-network @kubernetes/sig-node @mikedanese
The new flag, if specified, and if --container-runtime=docker, switches
kubelet to use the new CRI implementation for testing. This is hidden flag
since the feature is still under heavy development and the flag may be changed
in the near future.
Automatic merge from submit-queue
Add flag to set CNI bin dir, and use it on gci nodes
**What this PR does / why we need it**:
When using `kube-up` on GCE, following #31023 which moved the workers from debian to gci, CNI just isn't working. The root cause is basically as discussed in #28563: one flag (`--network-plugin-dir`) means two different things, and the `configure-helper` script uses it for the wrong purpose.
This PR adds a new flag `--cni-bin-dir`, then uses it to configure CNI as desired.
As discussed at #28563, I have also added a flag `--cni-conf-dir` so users can be explicit
**Which issue this PR fixes** : fixes#28563
**Special notes for your reviewer**:
I left the old flag largely alone for backwards-compatibility, with the exception that I stop setting the default when CNI is in use. The value of `"/usr/libexec/kubernetes/kubelet-plugins/net/exec/"` is unlikely to be what is wanted there.
**Release note**:
```release-note
Added new kubelet flags `--cni-bin-dir` and `--cni-conf-dir` to specify where CNI files are located.
Fixed CNI configuration on GCI platform when using CNI.
```
MTU selection is difficult, and if there is a transport such as IPSEC in
use may be impossible. So we allow specification of the MTU with the
network-plugin-mtu flag, and we pass this down into the network
provider.
Currently implemented by kubenet.
New flag --container-runtime-endpoint (overrides --container-runtime)
is introduced to kubelet which identifies the unix socket file of
the remote runtime service. And new flag --image-service-endpoint is
introduced to kubelet which identifies the unix socket file of the
image service.
Automatic merge from submit-queue
[kubelet] Introduce --protect-kernel-defaults flag to make the tunable behaviour configurable
Let's make the default behaviour of kernel tuning configurable. The default behaviour is kept modify as has been so far.
Automatic merge from submit-queue
[Kubelet] Rename `--config` to `--pod-manifest-path`. `--config` is deprecated.
This field holds the location of a manifest file or directory of manifest
files for pods the Kubelet is supposed to run. The name of the field
should reflect that purpose. I didn't change the flag name because that
API should remain stable.
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Also provide a new --pod-manifest-path flag and deprecate the old
--config one.
This field holds the location of a manifest file or directory of manifest
files for pods the Kubelet is supposed to run. The name of the field
should reflect that purpose.
Automatic merge from submit-queue
Undelete generated files
There's been enough people broken by not committing generated code, that we
should undo that until we have a proper client that is `go get` compatible.
This is temporary.
Fixes#28920
There's been enough people broken by not committing generated code, that we
should undo that until we have a proper client that is `go get` compatible.
This is temporary.
Move SystemReserved and KubeReserved into KubeletConfiguration struct
Convert int64 to int32 for some external type fields so they match internal ones
tLS* to tls* for JSON field names
Fix dependency on removed options.AutoDetectCloudProvider
Change floats in KubeletConfiguration API to ints
Update external KubeletConfiguration type
Add defaults for new KubeletConfiguration fields
Modify some defaults to match upstream settings
Add/rename some conversion functions
Updated codegen
Fixed typos
Mike Danese caught that s.NodeLabels wasn't allocated, fix on line 118
of cmd/kubelet/app/options/options.go.
Provide list of valid sources in comment for HostNetworkSources field
This mostly takes the previously checked in files and removes them, and moves
the generation to be on-demand instead of manual. Manually verified no change
in generated output.
This drives conversion generation from file tags like:
// +conversion-gen=k8s.io/my/internal/version
.. rather than hardcoded lists of packages.
The only net change in generated code can be explained as correct. Previously
it didn't know that conversion was available.
This is the last piece of Clayton's #26179 to be implemented with file tags.
All diffs are accounted for. Followup will use this to streamline some
packages.
Also add some V(5) debugging - it was helpful in diagnosing various issues, it
may be helpful again.
This drives most of the logic of deep-copy generation from tags like:
// +deepcopy-gen=package
..rather than hardcoded lists of packages. This will make it possible to
subsequently generate code ONLY for packages that need it *right now*, rather
than all of them always.
Also remove pkgs that really do not need deep-copies (no symbols used
anywhere).
In bringing back Clayton's PR piece-by-piece this was almost as easy to
implement as his version, and is much more like what I think we should be
doing.
Specifically, any time which defines a .DeepCopy() method will have that method
called preferentially. Otherwise we generate our own functions for
deep-copying. This affected exactly one type - resource.Quantity. In applying
this heuristic, several places in the generated code were simplified.
To achieve this I had to convert types.Type.Methods from a slice to a map,
which seems correct anyway (to do by-name lookups).
Make unversioned.ListMeta implement List. Update all the *List types so they implement GetListMeta.
This helps avoid using reflection to get list information.
Remove all unnecessary boilerplate, move the interfaces to the right
places, and add a test that verifies that objects implement one, the
other, but never both.
`--kubelet-cgroups` and `--system-cgroups` respectively.
Updated `--runtime-container` to `--runtime-cgroups`.
Cleaned up most of the kubelet code that consumes these flags to match
the flag name changes.
Signed-off-by: Vishnu kannan <vishnuk@google.com>
Remove Codec from versionInterfaces in meta (RESTMapper is now agnostic
to codec and serialization). Register api/latest.Codecs as the codec
factory and use latest.Codecs.LegacyCodec(version) as an equvialent to
the previous codec.
All external types that are not int64 are now marked as int32,
including
IntOrString. Prober is now int32 (43 years should be enough of an initial
probe time for anyone).
Did not change the metadata fields for now.
Clayton Coleman
