ginkgo.GinkgoHelper is a recent addition to ginkgo which allows functions to mark themselves as helper. This then changes which callstack gets reported for failures. It makes sense to support the same mechanism also for logging. There's also no reason why framework.Logf should produce output that is in a different format than klog log entries. Having time stamps formatted differently makes it hard to read test output which uses a mixture of both. Another user-visible advantage is that the error log entry from framework.ExpectNoError now references the test source code. With textlogger there is a simple replacement for klog that can be reconfigured to let the caller handle stack unwinding. klog itself doesn't support that and should be modified to support it (feature freeze). Emitting printf-style output via that logger would work, but become less readable because the message string would get quoted instead of printing it verbatim as before. So instead, the traditional klog header gets reproduced in the framework code. In this example, the first line is from klog, the second from Logf: I0111 11:00:54.088957 332873 factory.go:193] Registered Plugin "containerd" ... I0111 11:00:54.987534 332873 util.go:506] >>> kubeConfig: /var/run/kubernetes/admin.kubeconfig Indention is a bit different because the initial output is printed before installing the logger which writes through ginkgo.GinkgoWriter. One welcome side effect is that now "go vet" detects mismatched parameters for framework.Logf because fmt.Sprintf is called without mangling the format string. Some of the calls were incorrect. |
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CHANGELOG | ||
cluster | ||
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test | ||
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SUPPORT.md |
Kubernetes (K8s)

Kubernetes, also known as K8s, is an open source system for managing containerized applications across multiple hosts. It provides basic mechanisms for the 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 your company 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 K8s
See our documentation on kubernetes.io.
Take a free course on Scalable Microservices with Kubernetes.
To use Kubernetes code as a library in other applications, see the list of published components.
Use of the k8s.io/kubernetes
module or k8s.io/kubernetes/...
packages as libraries is not supported.
To start developing K8s
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.
mkdir -p $GOPATH/src/k8s.io
cd $GOPATH/src/k8s.io
git clone https://github.com/kubernetes/kubernetes
cd 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.
Community Meetings
The Calendar has the list of all the meetings in the Kubernetes community in a single location.
Adopters
The User Case Studies website has real-world use cases of organizations across industries that are deploying/migrating to Kubernetes.
Governance
Kubernetes project is governed by a framework of principles, values, policies and processes to help our community and constituents towards our shared goals.
The Kubernetes Community is the launching point for learning about how we organize ourselves.
The Kubernetes Steering community repo is used by the Kubernetes Steering Committee, which oversees governance of the Kubernetes project.
Roadmap
The Kubernetes Enhancements repo provides information about Kubernetes releases, as well as feature tracking and backlogs.