Automatic merge from submit-queue
Reduce allocations during conversion, enable new UnsafeConvertToVersion path
Cleans up the conversion path to avoid a few unnecessary allocations, then creates a new UnsafeConvertToVersion path that will allow encode/decode to bypass copying the object for performance. In that subsequent PR, ConvertToVersion will start to call Copy() and we will refactor conversions to reuse as much of the existing object as possible.
Also changes the unversioned.ObjectKind signature to not require allocations - speeds up a few common paths.
Automatic merge from submit-queue
WIP v0 NVIDIA GPU support
```release-note
* Alpha support for scheduling pods on machines with NVIDIA GPUs whose kubelets use the `--experimental-nvidia-gpus` flag, using the alpha.kubernetes.io/nvidia-gpu resource
```
Implements part of #24071 for #23587
I am not familiar with the scheduler enough to know what to do with the scores. Mostly punting for now.
Missing items from the implementation plan: limitranger, rkt support, kubectl
support and docs
cc @erictune @davidopp @dchen1107 @vishh @Hui-Zhi @gopinatht
Implements part of #24071
I am not familiar with the scheduler enough to know what to do with the scores. Punting for now.
Missing items from the implementation plan: limitranger, rkt support, kubectl
support and user docs
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Add subPath to mount a child dir or file of a volumeMount
Allow users to specify a subPath in Container.volumeMounts so they can use a single volume for many mounts instead of creating many volumes. For instance, a user can now use a single PersistentVolume to store the Mysql database and the document root of an Apache server of a LAMP stack pod by mapping them to different subPaths in this single volume.
Also solves https://github.com/kubernetes/kubernetes/issues/20466.
Automatic merge from submit-queue
Promote Pod Hostname & Subdomain to fields (were annotations)
Deprecating the podHostName, subdomain and PodHostnames annotations and created corresponding new fields for them on PodSpec and Endpoints types.
Annotation doc: #22564
Annotation code: #20688
Automatic merge from submit-queue
Remove requirement that Endpoints IPs be IPv4
Signed-off-by: André Martins <aanm90@gmail.com>
Release Note: The `Endpoints` API object now allows IPv6 addresses to be stored. Other components of the system are not ready for IPv6 yet, and many cloud providers are not IPv6 compatible, but installations that use their own controller logic can now store v6 endpoints.
Had to move other things around too to avoid a weird api ->
cloudprovider dependency.
Also adding fixes per code reviews.
(This is a squash of the previously approved commits)
Most volume plugins use SafeFormatAndMount, which uses ext4 by default.
FlexVolume plugin has FSType attribute 'omitempty', so reflect it in the
description of the type.
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.
It makes more sense for `ValidatePositiveField` and
`ValidatePositiveQuantity` methods to be named `ValidateNonnegativeField`
and `ValidateNonnegativeQuantity` as that is what is truly being
checked. This commit simply updates the method names everywhere they are
used.
I took a hard look at error output and played until I was happier. This now
prints JSON for structs in the error, rather than go's format.
Also made the error message easier to read.
Fixed tests.
Before this change we have a mish-mash of ways to pass field names around for
error generation. Sometimes string fieldnames, sometimes .Prefix(), sometimes
neither, often wrong names or not indexed when it should be.
Instead of that mess, this is part one of a couple of commits that will make it
more strongly typed and hopefully encourage correct behavior. At least you
will have to think about field names, which is better than nothing.
It turned out to be really hard to do this incrementally.
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.
- PeriodSeconds - How often to probe
- SuccessThreshold - Number of successful probes to go from failure to success state
- FailureThreshold - Number of failing probes to go from success to failure state
This commit includes to changes in behavior:
1. InitialDelaySeconds now defaults to 10 seconds, rather than the
kubelet sync interval (although that also defaults to 10 seconds).
2. Prober only retries on probe error, not failure. To compensate, the
default FailureThreshold is set to the maxRetries, 3.
Flocker [1] is an open-source container data volume manager for
Dockerized applications.
This PR adds a volume plugin for Flocker.
The plugin interfaces the Flocker Control Service REST API [2] to
attachment attach the volume to the pod.
Each kubelet host should run Flocker agents (Container Agent and Dataset
Agent).
The kubelet will also require environment variables that contain the
host and port of the Flocker Control Service. (see Flocker architecture
[3] for more).
- `FLOCKER_CONTROL_SERVICE_HOST`
- `FLOCKER_CONTROL_SERVICE_PORT`
The contribution introduces a new 'flocker' volume type to the API with
fields:
- `datasetName`: which indicates the name of the dataset in Flocker
added to metadata;
- `size`: a human-readable number that indicates the maximum size of the
requested dataset.
Full documentation can be found docs/user-guide/volumes.md and examples
can be found at the examples/ folder
[1] https://clusterhq.com/flocker/introduction/
[2] https://docs.clusterhq.com/en/1.3.1/reference/api.html
[3] https://docs.clusterhq.com/en/1.3.1/concepts/architecture.html
Increase the supported controls on pod logging. Add validaiton to pod
log options. Ensure the Kubelet is using a consistent, structured way to
process pod log arguments.
Add ?sinceSeconds=<durationInSeconds>, &sinceTime=<RFC3339>, ?timestamps=<bool>,
?tailLines=<number>, and ?limitBytes=<number>