494be59fda
Automatic merge from submit-queue (batch tested with PRs 52520, 52033, 53626, 50478). 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>. Fix kube-proxy to use proper iptables commands for IPv6 operation For iptables save and restore operations, kube-proxy currently uses the IPv4 versions of the iptables save and restore utilities (iptables-save and iptables-restore, respectively). For IPv6 operation, the IPv6 versions of these utilities need to be used (ip6tables-save and ip6tables-restore, respectively). Both this change and PR #48551 are needed to get Kubernetes services to work in an IPv6-only Kubernetes cluster (along with setting '--bind-address ::0' on the kube-proxy command line. This change was alluded to in a discussion on services for issue #1443. fixes #50474 **What this PR does / why we need it**: This change modifies kube-proxy so that it uses the proper commands for iptables save and iptables restore for IPv6 operation. Currently kube-proxy uses 'iptables-save' and 'iptables-restore' regardless of whether it is being used in IPv4 or IPv6 mode. This change fixes kube-proxy so that it uses 'ip6tables-save' and 'ip6tables-restore' commands when kube-proxy is being run in IPv6 mode. **Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #50474 **Special notes for your reviewer**: **Release note**: ```release-note NONE ``` |
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README.md
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.