Production-Grade Container Scheduling and Management
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Patrick Ohly 89cb4d0ee9 scheduler: better reason for delay with generic ephemeral volumes
These events are currently emitted for a pod using a generic ephemeral volume:

  Type     Reason            Age   From               Message
  ----     ------            ----  ----               -------
  Warning  FailedScheduling  3s    default-scheduler  0/1 nodes are available: 1 persistentvolumeclaim "my-csi-app-inline-volume-my-csi-volume" not found.
  Warning  FailedScheduling  2s    default-scheduler  0/1 nodes are available: 1 pod has unbound immediate PersistentVolumeClaims.

The one about "persistentvolumeclaim not found" is potentially confusing. It
occurs because the scheduler typically checks the pod before the ephemeral
volume controller had a chance to create the PVC.

This is a bit easier to understand:

  Type     Reason            Age   From               Message
  ----     ------            ----  ----               -------
  Warning  FailedScheduling  4s    default-scheduler  0/1 nodes are available: 1 waiting for ephemeral volume controller to create the persistentvolumeclaim "my-csi-app-inline-volume-my-csi-volume".
  Warning  FailedScheduling  2s    default-scheduler  0/1 nodes are available: 1 pod has unbound immediate PersistentVolumeClaims.
2021-08-30 10:06:59 +02:00
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api fix typo: Modify PodTrackingWithFinalizers to JobTrackingWithFinalizers 2021-08-23 15:38:30 +08:00
build Merge pull request #104438 from nick5616/windows/build-ltsc2022-pause 2021-08-25 13:53:53 -07:00
CHANGELOG Merge remote-tracking branch 'origin/master' 2021-08-19 17:43:32 +00:00
cluster generated: Run hack/update-gofmt.sh 2021-08-24 15:47:49 -04:00
cmd generated: Run hack/update-gofmt.sh 2021-08-24 15:47:49 -04:00
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pkg scheduler: better reason for delay with generic ephemeral volumes 2021-08-30 10:06:59 +02:00
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Kubernetes (K8s)

GoPkg Widget CII Best Practices


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.