0af19875ad
Ensure that bootstrap+clientcert-rotation in the Kubelet can: 1. happen in the background so that static pods aren't blocked by bootstrap 2. collapse down to a single call path for requesting a CSR 3. reorganize the code to allow future flexibility in retrieving bootstrap creds Fetching the first certificate and later certificates when the kubelet is using client rotation and bootstrapping should share the same code path. We also want to start the Kubelet static pod loop before bootstrapping completes. Finally, we want to take an incremental step towards improving how the bootstrap credentials are loaded from disk (potentially allowing for a CLI call to get credentials, or a remote plugin that better integrates with cloud providers or KSMs). Reorganize how the kubelet client config is determined. If rotation is off, simplify the code path. If rotation is on, load the config from disk, and then pass that into the cert manager. The cert manager creates a client each time it tries to request a new cert. Preserve existing behavior where: 1. bootstrap kubeconfig is used if the current kubeconfig is invalid/expired 2. we create the kubeconfig file based on the bootstrap kubeconfig, pointing to the location that new client certs will be placed 3. the newest client cert is used once it has been loaded |
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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.