6a889ec37f
Automatic merge from submit-queue (batch tested with PRs 51321, 55969, 55039, 56183, 55976). 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>. Topology aware volume scheduler and PV controller changes **What this PR does / why we need it**: Scheduler and PV controller changes to support volume topology aware scheduling, as specified in kubernetes/community#1168 **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 #54435 **Special notes for your reviewer**: * I've split the PR into logical commits to make it easier to review * The remaining TODOs I plan to address next release unless you think it needs to be done now **Release note**: ```release-note Adds alpha support for volume scheduling, which allows the scheduler to make PersistentVolume binding decisions while respecting the Pod's scheduling requirements. Dynamic provisioning is not supported with this feature yet. Action required for existing users of the LocalPersistentVolumes alpha feature: * The VolumeScheduling feature gate also has to be enabled on kube-scheduler and kube-controller-manager. * The NoVolumeNodeConflict predicate has been removed. For non-default schedulers, update your scheduler policy. * The CheckVolumeBinding predicate has to be enabled in non-default schedulers. ``` @kubernetes/sig-storage-pr-reviews @kubernetes/sig-scheduling-pr-reviews |
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Kubernetes
Kubernetes is an open source system for managing containerized applications across multiple hosts, providing basic mechanisms for deployment, maintenance, and scaling of applications.
Kubernetes builds upon a decade and a half of experience at Google running production workloads at scale using a system called Borg, combined with best-of-breed ideas and practices from the community.
Kubernetes is hosted by the Cloud Native Computing Foundation (CNCF). If you are a company that wants to help shape the evolution of technologies that are container-packaged, dynamically-scheduled and microservices-oriented, consider joining the CNCF. For details about who's involved and how Kubernetes plays a role, read the CNCF announcement.
To start using Kubernetes
See our documentation on kubernetes.io.
Try our interactive tutorial.
Take a free course on Scalable Microservices with Kubernetes.
To start developing Kubernetes
The community repository hosts all information about building Kubernetes from source, how to contribute code and documentation, who to contact about what, etc.
If you want to build Kubernetes right away there are two options:
You have a working Go environment.
$ go get -d k8s.io/kubernetes
$ cd $GOPATH/src/k8s.io/kubernetes
$ make
You have a working Docker environment.
$ git clone https://github.com/kubernetes/kubernetes
$ cd kubernetes
$ make quick-release
If you are less impatient, head over to the developer's documentation.
Support
If you need support, start with the troubleshooting guide and work your way through the process that we've outlined.
That said, if you have questions, reach out to us one way or another.