76e2bed9b1
Automatic merge from submit-queue (batch tested with PRs 54843, 55810). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Integrating cadvisor stats to CRI Pod stats collection For kubernetes-incubator/cri-containerd#341 **What this PR does / why we need it**: This PR contains changes to update kubelet to consume metrics from both CRI and cadvisor for Pod stats. The corresponding cadvisor changes are here https://github.com/google/cadvisor/pull/1795. Today CRI stats provides only core metrics such as CPU Usage, Memory Usage, Disk Usage. However the stats exposed by kubelet which is a superset of core metrics and Network, User Defined Metrics are not provided by CRI stats. Hence kubelet stats are extracted from 2 sources , CRI stats and cadvisor stats. After the change the summary stats for a CRI based runtime (containerd) is as show here: https://gist.github.com/abhi/d7351861df6430eb4bc5d711d274ec35 This PR also contains test case change to reflect the stats for cri stats provider. **Which issue(s) this PR fixes** : Fixes # https://github.com/kubernetes-incubator/cri-containerd/issues/341 **Special notes for your reviewer**: https://docs.google.com/presentation/d/1Os3nyMRBlFuiBLCjPgeaPv6jXylrZW5jiDXJejlA3Wg/edit#slide=id.g27cb4cb6d8_0_0 Godep will be updated to main tree after https://github.com/google/cadvisor/pull/1795 PR is merged. **Release note**: ```release-note Kubelet can provide full summary api support except container log stats for CRI container runtime now. ``` cc @Random-Liu |
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README.md
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
If you are less impatient, 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.