3fdf6c3d14
Automatic merge from submit-queue Delete all dead containers and sandboxes when under disk pressure. This PR modifies the eviction manager to add dead container and sandbox garbage collection as a resource reclaim function for disk. It also modifies the container GC logic to allow pods that are terminated, but not deleted to be removed. It still does not delete containers that are less than the minGcAge. This should prevent nodes from entering a permanently bad state if the entire disk is occupied by pods that are terminated (in the state failed, or succeeded), but not deleted. There are two improvements we should consider making in the future: - Track the disk space and inodes reclaimed by deleting containers. We currently do not track this, and it prevents us from determining if deleting containers resolves disk pressure. So we may still evict a pod even if we are able to free disk space by deleting dead containers. - Once we can track disk space and inodes reclaimed, we should consider only deleting the containers we need to in order to relieve disk pressure. This should help avoid a scenario where we try and delete a massive number of containers all at once, and overwhelm the runtime. /assign @vishh cc @derekwaynecarr ```release-note Disk Pressure triggers the deletion of terminated containers on the node. ``` |
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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
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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
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$ git clone https://github.com/kubernetes/kubernetes
$ cd kubernetes
$ make quick-release
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