51fbd6e637
Automatic merge from submit-queue (batch tested with PRs 57252, 57168). 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>. Implementing predicates ordering **What this PR does / why we need it**: implements predicates ordering for the scheduler **Which issue(s) this PR fixes** : Fixes #53812 **Special notes for your reviewer**: @bsalamat @gmarek @resouer as discussed on slack, to implement ordering we have to choices: - use a layered approach with a list that indexes the order of the predicates map - change the underlying data structure used to represent a collection of predicates (a map in our case) into a list of predicates objects. Going with this solution might be "cleaner" but it will require a lot of changes and will increase the cost for accessing predicates from O(1) to O(n) (n being the number of predicates used by the scheduler). we might go with this solution for now. If the number of predicates start growing, we might switch to the second option. **Release note**: ```release-note adding predicates ordering for the kubernetes scheduler. ``` |
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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
For the full story, 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.