f73ac0da3e
MigrateOldConfigFromFile is a function, whose purpose is to migrate one config into another. It is working OK for now, but it has some issues: - It is incredibly inefficient. It can reload and re-parse a single config file for up to 3 times. - Because of the reloads, it has to take a file containing the configuration (not a byte slice as most of the rest config functions). However, it returns the migrated config in a byte slice (rather asymmetric from the input method). - Due to the above points it's difficult to implement a proper interface for deprecated kubeadm config versions. To fix the issues of MigrateOldConfigFromFile, the following is done: - Re-implement the function by removing the calls to file loading package public APIs and replacing them with newly extracted package private APIs that do the job with pre-provided input data in the form of map[GroupVersionKind][]byte. - Take a byte slice of the input configuration as an argument. This makes the function input symmetric to its output. Also, it's now renamed to MigrateOldConfig to represent the change from config file path as an input to byte slice. - As a bonus (actually forgotten from a previous change) BytesToInternalConfig is renamed to the more descriptive BytesToInitConfiguration. Signed-off-by: Rostislav M. Georgiev <rostislavg@vmware.com>
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.