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* Add warning handler callback function in shortcut expander Currently, errors in client-go are propagated back to the callers via function returns. However, there is no elegant way for just warning users. For example, when user wants to get a resource with it's short name format and if there are multiple resources belonging to this short name, we need to warn user about this ambugity which one is picked and which ones are discarded. Not only to overcome this particular case mentioned above, but also propose a way for the possible warnings in the future, this commit adds a warningHandler callback function in shortcutExpander. * Add warningPrinter functionality in ConfigFlags ConfigFlags has neither warning user in a standardized format functionality nor passing warning callback functions to other upper level libraries such as client-go. This commit adds an ability that user can set warningPrinters according to their IOStreams and this warningPrinters will be used to raise possible warnings happening not only in cli-runtime but also in client-go. * Pass warning callback function in ConfigFlags to shortcutExpander This commit passes warning callback function to print possible warnings happened in shortcut expander to warn user in a standardized format. * Add integration test for CRDs having ambiguous short names This commit adds integration test to assure that warning message related to this ambiguity is printed when resources are being retrieved via their short name representations in cases where multiple resources have same short names. This integration test also ensures that the logic behind which resource will be selected hasn't been changed which may cause disperancies in clusters. * Remove defaultConfigFlag global variable * Move default config flags initialization into function * Skip warning for versions of same group/resource * Run update-vendor * Warn only once when there are multiple versions registered for ambiguous resource * Apply gocritic review * Add multi-resource multi-version ambiguity unit test |
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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.