9a867c555c
The recent regression https://github.com/kubernetes/kubernetes/issues/107033 shows that we need a way to automatically measure different logging configurations (structured text, JSON with and without split streams) under realistic conditions (time stamping, caller identification). System calls may affect the performance and thus writing into actual files is useful. A temp dir under /tmp (usually a tmpfs) is used, so the actual IO bandwidth shouldn't affect the outcome. The "normal" json.Factory code is used to construct the JSON logger when we have actual files that can be set as os.Stderr and os.Stdout, thus making this as realistic as possible. When discarding the output instead of writing it, the focus is more on the rest of the pipeline and changes there can be investigated more reliably. The benchmarks automatically gather "log entries per second" and "bytes per second", which is useful to know when considering requirements like the ones from https://github.com/kubernetes/kubernetes/issues/107029. |
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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 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.
Try our interactive tutorial.
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.