1ad792f01d
Automatic merge from submit-queue (batch tested with PRs 55050, 53464, 54936, 55028, 54928). 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>. output empty creationTimestamp as null **Release note** ```release-note NONE ``` Updates the value of the `creationTimestamp` field to be `null` when empty, to keep parity between it and `deletionTimestamp`. Adds a round-trip test to ensure that unstructured objects containing empty metadata fields are able to be re-converted back into internal or external objects. Prior to the proposed patch in this PR, an unstructured object whose `.metadata.creationTimestamp` value had been set through the metadata accessor to an empty value (`metav1.Time{}` in this case), was unable to be re-converted to an internal or external type using the runtime decoder. Conversion would fail with the error: ``` unstructured_test.go:177: FromUnstructured failed: parsing time "" as "2006-01-02T15:04:05Z07:00": cannot parse "" as "2006" ``` cc @liggitt @fabianofranz
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.