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The cloudprovider is being refactored out of kubernetes core. This is being done by moving all the cloud-specific calls from kube-apiserver, kubelet and kube-controller-manager into a separately maintained binary(by vendors) called cloud-controller-manager. The Kubelet relies on the cloudprovider to detect information about the node that it is running on. Some of the cloudproviders worked by querying local information to obtain this information. In the new world of things, local information cannot be relied on, since cloud-controller-manager will not run on every node. Only one active instance of it will be run in the cluster. Today, all calls to the cloudprovider are based on the nodename. Nodenames are unqiue within the kubernetes cluster, but generally not unique within the cloud. This model of addressing nodes by nodename will not work in the future because local services cannot be queried to uniquely identify a node in the cloud. Therefore, I propose that we perform all cloudprovider calls based on ProviderID. This ID is a unique identifier for identifying a node on an external database (such as the instanceID in aws cloud).
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.