c08a62088c
Automatic merge from submit-queue (batch tested with PRs 48572, 48838, 48931, 48783, 47090) kubeadm: add a warning about the default token TTL changing in 1.8 **What this PR does / why we need it**: This adds a warning to `kubeadm init` and `kubeadm token create` if they are run without the `--token-ttl` / `--ttl` flags. In 1.7 and before, the tokens generated by these commands defaulted to an infinite TTL (no expiration) in 1.8, they will generate a token with a 24 hour TTL. The actual default change is in https://github.com/kubernetes/kubernetes/pull/48783. This change is separate so we can cherry pick the warning into the `release-1.7` branch. **Which issue this PR fixes**: ref https://github.com/kubernetes/kubeadm/issues/343 **Special notes for your reviewer**: This change is blocked on https://github.com/kubernetes/kubeadm/issues/343. These warnings should probably be removed in the 1.9 cycle. **Release note**: ```release-note Add a runtime warning about the kubeadm default token TTL changes in 1.8. ``` /assign @luxas |
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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
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$ git clone https://github.com/kubernetes/kubernetes
$ cd kubernetes
$ make quick-release
If you are less impatient, head over to the developer's documentation.
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