466c4d24a9
When adding functionality to the kubelet package and a test file, is kind of painful to run unit tests today locally. We usually can't run specifying the test file, as if xx_test.go and xx.go use the same package, we need to specify all the dependencies. As soon as xx.go uses the Kuebelet type (we need to do that to fake a kubelet in the unit tests), this is completely impossible to do in practice. So the other option is to run the unit tests for the whole package or run only a specific funtion. Running a single function can work in some cases, but it is painful when we want to test all the functions we wrote. On the other hand, running the test for the whole package is very slow. Today some unit tests try to connect to the API server (with retries) create and list lot of pods/volumes, etc. This makes running the unit test for the kubelet package slow. This patch tries to make running the unit test for the whole package more palatable. This patch adds a skip if the short version was requested (go test -short ...), so we don't try to connect to the API server or skip other slow tests. Before this patch running the unit tests took in my computer (I've run it several times so the compilation is already done): $ time go test -v real 0m21.303s user 0m9.033s sys 0m2.052s With this patch it takes ~1/3 of the time: $ time go test -short -v real 0m7.825s user 0m9.588s sys 0m1.723s Around 8 seconds is something I can wait to run the tests :) Signed-off-by: Rodrigo Campos <rodrigoca@microsoft.com> |
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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.
Community Meetings
The Calendar has the list of all the meetings in 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.