4257f7595a
Automatic merge from submit-queue. 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>. Recheck if transformed data is stale when doing live lookup during update Fixes #49565 Caching storage can pass in a cached object to `GuaranteedUpdate` as a hint for the current object. If the hint is identical to the data we want to persist, before short-circuiting as a no-op update, we force a live lookup. We should check two things on the result of that live lookup before short-circuiting as a no-op update: 1. the bytes we want to persist still match the transformed bytes read from etcd 2. the state read from etcd didn't report itself as stale. this would mean the transformer used to read the data would not be the transformer used to write it, and "no-op" writes should still be performed, since transformation will make the underlying content actually different. After a live lookup, we checked byte equality, but not the stale indicator. This meant that key rotation or encrypted->decrypted, and decrypted->encrypted updates are broken. Introduced in #54780 and picked back to 1.8 in #55294 ```release-note Fixed encryption key and encryption provider rotation ``` |
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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.