82eeda0885
Automatic merge from submit-queue (batch tested with PRs 57550, 60089). 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>. Remove subnet size restriction for IPv6 RangeSize was restricting IPv6 subnets to a /66 due to the logic using a uint64. This is not practical for IPv6. This change removes the /64 restriction, but also sets a limit on the range that can be allocated, so that the bitmap will not grow too large. **What this PR does / why we need it**: This PR removes the /66 restriction in ipallocator for IPv6. It is not practical to restrict IPv6 to /66. Currently a /64 or /48 is not allowed. The problem with removing the restriction is the bitmap that tracks the subnets can grow really large, so a limit on the max size of the subnet was set to 65536. Setting the max size will have a side-effect with larger subnets that the allocator will allocate in a smaller section of IP's, this will need to be addressed in a follow-on PR. **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 #60081 **Special notes for your reviewer**: **Release note**: ```release-note-none ```
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.